OpenGeoMetadata (OGM) Aardvark Schema¶
Tip
To read more about certain metadata categories (like "Spatial"), click the hyperlinked headings in the table below.
Descriptive¶
- Title (R)
- Alternative Title
- Description (S)
- Language (v)
- Display Note
Credits¶
Categories¶
- Resource Class (R) (v)
- Resource Type (S) (v)
- Subject
- Theme (v)
- Keyword
Temporal ¶
Spatial ¶
- Spatial Coverage (S)
- Geometry (S)
- Bounding Box (S)
- Centroid
- Georeferenced
Relations ¶
Rights¶
- Rights (S)
- Rights Holder
- License
- Access Rights (R)
Object¶
Links¶
- References (S)
- WxS Identifier (C)
Identifiers¶
- ID (R)
- Identifier (S)
Admin¶
- Modified (R)
- Metadata Version (R) (v)
- Suppressed
Key
(R) = Required
(C) = Conditionally Required
(S) = Suggested
(v) = Controlled Values
Access Rights¶
| Label | Access Rights |
|---|---|
| URI | https://opengeometadata.org/ogm-aardvark/#access-rights |
| Field Name | dct_accessRights_s |
| Field Type | String |
| Obligation | Required |
| Multivalued | False |
| Purpose | To clarify to the user if the resource is public (any user can access) or restricted (a user will need to log in to some kind of authentication protocol) and if the application should provide a web service preview and/or a download function. |
| Entry Guidelines | Only one of two values are allowed: Public or Restricted. |
| Commentary | This field can be set to "Public", which allows users to view and download an item, or "Restricted", which requires a user to log in to an authentication service. |
| Controlled Vocabulary | Yes - strict |
| Example Value | "Public" |
| Element Set | DCMI |
| Group | Rights |
Alternative Title¶
| Label | Alternative Title |
|---|---|
| URI | https://opengeometadata.org/ogm-aardvark/#alternative-title |
| Field Name | dct_alternative_sm |
| Field Type | Array of strings |
| Obligation | Optional |
| Multivalued | True |
| Purpose | To provide the user with the another title if needed. |
| Entry Guidelines | This could be for a secondary or original title or subtitle. |
| Commentary | For discoverability, improving titles for data is encouraged. This field could be a place to keep the original title. It could also be useful for scanned maps. Some have long titles that include MARC subtitle fields, such as 245$b. Whether or not this field should appear in your GeoBlacklight item view pages can be customized in the application. |
| Controlled Vocabulary | No |
| Example Value | ["NEZ H Districts"] |
| Element Set | DCMI |
| Group | Descriptive |
Bounding Box¶
| Label | Bounding Box |
|---|---|
| URI | https://opengeometadata.org/ogm-aardvark/#bounding-box |
| Field Name | dcat_bbox |
| Field Type | String |
| Obligation | Suggested |
| Multivalued | False |
| Purpose | To support overlap ratio boosting in spatial searches. |
| Entry Guidelines | This should be a bounding box in this format: ENVELOPE(W,E,N,S). |
| Commentary | If the Geometry field uses the ENVELOPE syntax, then these fields will be identical. |
| Controlled Vocabulary | No |
| Example Value | "ENVELOPE(-111.1, -104.0, 45.0, 40.9)" |
| Element Set | DCAT |
| Group | Spatial |
Centroid¶
| Label | Centroid |
|---|---|
| URI | https://opengeometadata.org/ogm-aardvark/#centroid |
| Field Name | dcat_centroid |
| Field Type | String |
| Obligation | Optional |
| Multivalued | False |
| Purpose | To display the centerpoint of a resource. |
| Entry Guidelines | Enter two decimal degree coordinates separated by a comma in this order: latitude, longitude. |
| Commentary | This field is currently only supported by customizations to the GeoBlacklight application. |
| Controlled Vocabulary | No |
| Example Value | "46.4218,-94.087" |
| Element Set | DCAT |
| Group | Spatial |
Creator¶
| Label | Creator |
|---|---|
| URI | https://opengeometadata.org/ogm-aardvark/#creator |
| Field Name | dct_creator_sm |
| Field Type | Array of strings |
| Obligation | Suggested |
| Multivalued | True |
| Purpose | To credit the person/organization that collected or authored the resource. |
| Entry Guidelines | The suggested controlled vocabulary is the Library of Congress Name Authority File. |
| Commentary | The distinction between Creator and Publisher is often vague. This field is best reserved for instances in which an individual person has collected, produced, or generated analyses of data (as opposed to an agency releasing a data product or resource). It can be a person or an organization. |
| Controlled Vocabulary | No |
| Example Value | ["Geological Survey (U.S.)"] |
| Element Set | DCMI |
| Group | Credits |
Date Issued¶
| Label | Date Issued |
|---|---|
| URI | https://opengeometadata.org/ogm-aardvark/#date-issued |
| Field Name | dct_issued_s |
| Field Type | String |
| Obligation | Optional |
| Multivalued | False |
| Purpose | To provide the user with the date when an item was published, and to allow administrators to determine the age of the resource. |
| Entry Guidelines | A single year is the preferred format. For more precise dates, use the ISO format without the time value: YYYY-MM-DD or YYYY-MM. |
| Commentary | Although the field is optional, it is often useful when a clear Temporal Coverage value is not present. For example, one may want to preserve a dataset with an uncertain lineage, but there is an indicator on a data portal on the date of last update. In most cases, the 4-digit year is sufficient. |
| Controlled Vocabulary | No |
| Example Value | "1999" |
| Element Set | DCMI |
| Group | Temporal |
Date Range¶
| Label | Date Range |
|---|---|
| URI | https://opengeometadata.org/ogm-aardvark/#date-range |
| Field Name | gbl_dateRange_drsim |
| Field Type | String |
| Obligation | Optional |
| Multivalued | True |
| Purpose | To power other time widgets that use a date range. |
| Entry Guidelines | Enter a start date and end date in the Solr date range field convention. In JSON, the value should be formatted as a string that includes the brackets, rather than as an array or list containing a string. Incorrect: ["YYYY TO YYYY"]. Correct: "[YYYY TO YYYY]". |
| Commentary | This field is not yet supported by GeoBlacklight, but the application can be customized to use it. |
| Controlled Vocabulary | No |
| Example Value | "[1980 TO 1995]" |
| Element Set | GBL |
| Group | Temporal |
Description¶
| Label | Description |
|---|---|
| URI | https://opengeometadata.org/ogm-aardvark/#description |
| Field Name | dct_description_sm |
| Field Type | Array of strings |
| Obligation | Suggested |
| Multivalued | True |
| Purpose | To provide the user with a summary of the resource. |
| Entry Guidelines | At a minimum, this is a reiteration of the title in sentence format. Other relevant information, such as data creation methods, data sources, and special licenses, may also be included. |
| Commentary | This field is the second-most prominent value (after Title) that users see when search or browsing for items. Although not required, it is strongly recommended. If the description is minimal or lacking, it can be improved by concatenating available metadata fields, such as title, date, format, and place. This is a plain text field by default, but it can include clickable links if the GeoBlacklight software is customized; see the GeoBlacklight documentation on how to render HTML from a text field. |
| Controlled Vocabulary | No |
| Example Value | "This polygon shapefile represents boundaries of election districts in New York City. It was harvested from the NYC Open Data Portal." |
| Element Set | DCMI |
| Group | Descriptive |
Display Note¶
| Label | Display Note |
|---|---|
| URI | https://opengeometadata.org/ogm-aardvark/#display-note |
| Field Name | gbl_displayNote_sm |
| Field Type | Array of strings |
| Obligation | Optional |
| Multivalued | True |
| Purpose | To highlight additional information about a resource, such as warnings or tips for using the data. |
| Entry Guidelines | Prefix the string with "Danger:", "Info:", "Tip:", or "Warning:" to specify the type of note. |
| Commentary | Starting in GeoBlacklight version 4.1, text in this field is prominently displayed in a shaded box just after the title, with the prefixes controlling the style of the displayed note. Styles and additional prefixes (for example, in other languages) can be added by customizing the GeoBlacklight software; see the v4.1.0 release notes. |
| Controlled Vocabulary | No |
| Example Value | ["Danger: This text will be displayed in a red box","Info: This text will be displayed in a blue box","Tip: This text will be displayed in a green box","Warning: This text will be displayed in a yellow box","This is text without a tag and it will be assigned the default 'note' style"] |
| Element Set | GBL |
| Group | Descriptive |
File Size¶
| Label | File Size |
|---|---|
| URI | https://opengeometadata.org/ogm-aardvark/#file-size |
| Field Name | gbl_fileSize_s |
| Field Type | String |
| Obligation | Optional |
| Multivalued | False |
| Purpose | To inform the user of the size of the file download. |
| Entry Guidelines | Enter the size in megabytes. |
| Commentary | This field is intended to give users a sense of how large the data or image they are interested in downloading, and serves to alert users about huge files. |
| Controlled Vocabulary | No |
| Example Value | "25.96 MB" |
| Element Set | GBL |
| Group | Object |
Format¶
| Label | Format |
|---|---|
| URI | https://opengeometadata.org/ogm-aardvark/#format |
| Field Name | dct_format_s |
| Field Type | String |
| Obligation | Conditionally required |
| Multivalued | False |
| Purpose | To display to the user the name of the file type as a text string in the download button. |
| Entry Guidelines | Enter a string describing the file format, preferably from the list of Format Values. |
| Commentary | This field is required if the download URL (http://schema.org/downloadUrl) in the References field is configured as a single key:value pair. The field is not required if using the multiple downloads option. |
| Controlled Vocabulary | Yes - not strict |
| Example Value | "Shapefile" |
| Element Set | DCMI |
| Group | Object |
Format Values¶
- ArcGRID
- CD-ROM
- DEM
- DVD-ROM
- Feature Class
- Geodatabase
- GeoJPEG
- GeoJSON
- GeoPackage
- GeoPDF
- GeoTIFF
- JPEG
- JPEG2000
- KML
- KMZ
- LAS
- LAZ
- Mixed
- MrSID
- PNG
- Pulsewaves
- Raster Dataset
- Shapefile
- SQLite Database
- Tabular Data
- TIFF
Geometry¶
| Label | Geometry |
|---|---|
| URI | https://opengeometadata.org/ogm-aardvark/#geometry |
| Field Name | locn_geometry |
| Field Type | String |
| Obligation | Suggested |
| Multivalued | False |
| Purpose | To display the extent of the resource and to power the map search. |
| Entry Guidelines | This may be a bounding box or more complex geometry. For a bounding box, it should use the ENVELOPE(W,E,N,S) syntax. For a more complex geometry, it should use the WKT ("well-known text") POLYGON or MULTIPOLYGON syntax. Note that WKT polygon vertices should be defined in counter-clockwise order. |
| Commentary | Since this field is not repeatable, multiple polygons should be represented using the WKT "MULTIPOLYGON" syntax. Geometries that span the 180th meridian, aka the antimeridian, should be broken up into multiple bounding boxes or polygons for each side of the earth's hemisphere. This is because Solr, the underlying indexer for GeoBlacklight, cannot interpret these coordinates correctly and will display the geometry improperly (horizontally flipped). |
| Controlled Vocabulary | No |
| Example Value | Simple bounding box: "ENVELOPE(-111.1, -104.0, 45.0, 40.9)" | Bermuda Triangle: "POLYGON((-80 25, -65 18, -64 33, -80 25))" | Split bounding box for Alaska: "MULTIPOLYGON (((-179.3 51.1, -129.9 51.1, -129.9 71.5, -179.3 71.5, -179.3 51.1)),((172.3 51.2, 179.9 51.2, 179.9 53.1, 172.3 53.1, 172.3 51.2)))" |
| Element Set | LOCN |
| Group | Spatial |
Georeferenced¶
| Label | Georeferenced |
|---|---|
| URI | https://opengeometadata.org/ogm-aardvark/#georeferenced |
| Field Name | gbl_georeferenced_b |
| Field Type | Boolean or string |
| Obligation | Optional |
| Multivalued | False |
| Purpose | To indicate whether or not a scanned map or other imagery has a georeferenced version. |
| Entry Guidelines | Only one of two values are allowed: true or false. |
| Commentary | This field can be a shortcut for users to find georeferenced maps. Administrators can also employ the Source field to link a paper map with its scan (e.g. a TIFF) and its georeferenced version (e.g. a GeoTIFF). |
| Controlled Vocabulary | Yes - strict |
| Example Value | false or "false" |
| Element Set | GBL |
| Group | Spatial |
ID¶
| Label | ID |
|---|---|
| URI | https://opengeometadata.org/ogm-aardvark/#id |
| Field Name | id |
| Field Type | String |
| Obligation | Required |
| Multivalued | False |
| Purpose | To provide a unique text string for the item that will act as the primary key in Solr and to create a unique landing page for the item. |
| Entry Guidelines | Enter a string that only contains alpha-numeric characters (A-Z, a-z, 0-9), hyphens, underscores, and colons. This ID must be unique within your instance's GeoBlacklight index. |
| Commentary | The value of this field will appear in Geoblacklight's URL for the item. It is visible to the user and is used to create permalinks. Although it may be possible to use other non-Latin or punctuation characters, this is not recommended, as these characters may get percent-escaped in the URLs, or even lead to broken links or other problems. Since it is common to include records from other institutions, it is recommended that any records you create are prefixed with the short form of your institution's name to avoid collisions with records from other providers. |
| Controlled Vocabulary | No |
| Example Value | "princeton-rv042w38t" |
| Element Set | GBL |
| Group | Identifiers |
Identifier¶
| Label | Identifier |
|---|---|
| URI | https://opengeometadata.org/ogm-aardvark/#identifier |
| Field Name | dct_identifier_sm |
| Field Type | Array of strings |
| Obligation | Suggested |
| Multivalued | True |
| Purpose | To provide a general purpose field for identifiers. |
| Entry Guidelines | Enter a DOI, catalog number, and/or other system number. |
| Commentary | This is a general purpose field that can contain one or more string values. Ideally, at least one value would be a persistent identifier or permalink (such as a PURL or Handle). Additional values could be other identifiers used by the resource, such as the call number, OCLC number, or other system identifier. This field is not displayed in the interface. |
| Controlled Vocabulary | No |
| Example Value | ["5864 .L7 E635 1998 .G7"] |
| Element Set | DCMI |
| Group | Identifiers |
Index Year¶
| Label | Index Year |
|---|---|
| URI | https://opengeometadata.org/ogm-aardvark/#index-year |
| Field Name | gbl_indexYear_im |
| Field Type | Array of integers |
| Obligation | Suggested |
| Multivalued | True |
| Purpose | To power the "Year" facet and time slider widgets that rely on integers for dates. |
| Entry Guidelines | Enter one or more 4-digit integers. |
| Commentary | Ideally this field should describe the date(s) depicted in a resource. Because it powers the "Year" facet, it is one of the key ways users can find items by their date. |
| Controlled Vocabulary | No |
| Example Value | [1980,1981,1982] |
| Element Set | GBL |
| Group | Temporal |
Is Part Of¶
| Label | Is Part Of |
|---|---|
| URI | https://opengeometadata.org/ogm-aardvark/#is-part-of |
| Field Name | dct_isPartOf_sm |
| Field Type | Array of strings |
| Obligation | Optional |
| Multivalued | True |
| Purpose | To link items that are a subset of another item (e.g. a page in a book, or a map in an atlas). |
| Entry Guidelines | Make a parent record to group records together. Enter the ID of the parent record(s). |
| Commentary | This is one of several fields that describe how records relate to each other. To link to a collection (rather than a book or atlas), see Member Of. |
| Controlled Vocabulary | No |
| Example Value | ["77f-0001"] |
| Element Set | DCMI |
| Group | Relations |
Is Replaced By¶
| Label | Is Replaced By |
|---|---|
| URI | https://opengeometadata.org/ogm-aardvark/#is-replaced-by |
| Field Name | dct_isReplacedBy_sm |
| Field Type | Array of strings |
| Obligation | Optional |
| Multivalued | True |
| Purpose | To point the user to a newer item(s). |
| Entry Guidelines | Enter the ID of the newer item(s) that should be used instead. |
| Commentary | This field can be used with Replaces to link an original dataset to a newer version. For example, if this dataset has already been cited somewhere but is now deprecated, it can be retained in a repository and this field can be used to link to its newer version. |
| Controlled Vocabulary | No |
| Example Value | ["cugir-007933"] |
| Element Set | DCMI |
| Group | Relations |
Is Version Of¶
| Label | Is Version Of |
|---|---|
| URI | https://opengeometadata.org/ogm-aardvark/#is-version-of |
| Field Name | dct_isVersionOf_sm |
| Field Type | Array of strings |
| Obligation | Optional |
| Multivalued | True |
| Purpose | To indicate that an item is part of a series of resources that are updated or altered and to provide a link to a different variant or adaption. |
| Entry Guidelines | Enter the ID of the most recent related record OR create a parent record to group versions together. |
| Commentary | If entering the ID of a parent record, see Member Of and Is Part Of for similar examples. |
| Controlled Vocabulary | No |
| Example Value | ["xyz-1234"] |
| Element Set | DCMI |
| Group | Relations |
Keyword¶
| Label | Keyword |
|---|---|
| URI | https://opengeometadata.org/ogm-aardvark/#keyword |
| Field Name | dcat_keyword_sm |
| Field Type | Array of strings |
| Obligation | Optional |
| Multivalued | True |
| Purpose | To improve search results with hidden free text tags and to give administrators a field for internal tags. |
| Entry Guidelines | Enter tags that will be useful for enhancing searches and interpretation. Keywords will be in the metadata, but will be hidden to the user by default. |
| Commentary | This field may be used for administrative purposes or to facilitate text searching without cluttering a facet or interface. They may be helpful for grouping items by an accession code or for alternate spellings of common terms. |
| Controlled Vocabulary | No |
| Example Value | ["covid19", "vaccination rate"] |
| Element Set | DCAT |
| Group | Categories |
Language¶
| Label | Language |
|---|---|
| URI | https://opengeometadata.org/ogm-aardvark/#language |
| Field Name | dct_language_sm |
| Field Type | Array of strings |
| Obligation | Optional |
| Multivalued | True |
| Purpose | To provide the user with the language of the resource. |
| Entry Guidelines | Enter a 3-letter code using the ISO 639-2 standard. |
| Commentary | This field is intended to indicate the language of the dataset, map, and/or supporting documentation. |
| Controlled Vocabulary | Yes - not strict. Ideally, choose from the ISO 639-3 language codes in the list of Language Values below. |
| Example Value | ["eng"] |
| Element Set | DCMI |
| Group | Descriptive |
Language Values¶
See Library of Congress for full list.
| English Name of Language | ISO 639-2 |
|---|---|
| Abkhazian | abk |
| Achinese | ace |
| Acoli | ach |
| Adangme | ada |
| Adygei | ady |
| Adyghe | ady |
| Afar | aar |
| Afrihili | afh |
| Afrikaans | afr |
| Afro-Asiatic languages | afa |
| Ainu | ain |
| Akan | aka |
| Akkadian | akk |
| Albanian | alb/sqi |
| Alemannic | gsw |
| Aleut | ale |
| Algonquian languages | alg |
| Alsatian | gsw |
| Altaic languages | tut |
| Amharic | amh |
| Angika | anp |
| Apache languages | apa |
| Arabic | ara |
| Aragonese | arg |
| Arapaho | arp |
| Arawak | arw |
| Armenian | arm/hye |
| Aromanian | rup |
| Artificial languages | art |
| Arumanian | rup |
| Assamese | asm |
| Asturian | ast |
| Asturleonese | ast |
| Athapascan languages | ath |
| Australian languages | aus |
| Austronesian languages | map |
| Avaric | ava |
| Avestan | ave |
| Awadhi | awa |
| Aymara | aym |
| Azerbaijani | aze |
| Bable | ast |
| Balinese | ban |
| Baltic languages | bat |
| Baluchi | bal |
| Bambara | bam |
| Bamileke languages | bai |
| Banda languages | bad |
| Bantu languages | bnt |
| Basa | bas |
| Bashkir | bak |
| Basque | baq/eus |
| Batak languages | btk |
| Bedawiyet | bej |
| Beja | bej |
| Belarusian | bel |
| Bemba | bem |
| Bengali | ben |
| Berber languages | ber |
| Bhojpuri | bho |
| Bihari languages | bih |
| Bikol | bik |
| Bilin | byn |
| Bini | bin |
| Bislama | bis |
| Blin | byn |
| Bliss | zbl |
| Blissymbolics | zbl |
| Blissymbols | zbl |
| Bokmål, Norwegian | nob |
| Bosnian | bos |
| Braj | bra |
| Breton | bre |
| Buginese | bug |
| Bulgarian | bul |
| Buriat | bua |
| Burmese | bur/mya |
| Caddo | cad |
| Castilian | spa |
| Catalan | cat |
| Caucasian languages | cau |
| Cebuano | ceb |
| Celtic languages | cel |
| Central American Indian languages | cai |
| Central Khmer | khm |
| Chagatai | chg |
| Chamic languages | cmc |
| Chamorro | cha |
| Chechen | che |
| Cherokee | chr |
| Chewa | nya |
| Cheyenne | chy |
| Chibcha | chb |
| Chichewa | nya |
| Chinese | chi/zho |
| Chinook jargon | chn |
| Chipewyan | chp |
| Choctaw | cho |
| Chuang | zha |
| Church Slavic | chu |
| Church Slavonic | chu |
| Chuukese | chk |
| Chuvash | chv |
| Classical Nepal Bhasa | nwc |
| Classical Newari | nwc |
| Classical Syriac | syc |
| Cook Islands Maori | rar |
| Coptic | cop |
| Cornish | cor |
| Corsican | cos |
| Cree | cre |
| Creek | mus |
| Creoles and pidgins | crp |
| Creoles and pidgins, English based | cpe |
| Creoles and pidgins, French-based | cpf |
| Creoles and pidgins, Portuguese-based | cpp |
| Crimean Tatar | crh |
| Crimean Turkish | crh |
| Croatian | hrv |
| Cushitic languages | cus |
| Czech | cze/ces |
| Dakota | dak |
| Danish | dan |
| Dargwa | dar |
| Delaware | del |
| Dene Suline | chp |
| Dhivehi | div |
| Dimili | zza |
| Dimli | zza |
| Dinka | din |
| Divehi | div |
| Dogri | doi |
| Dogrib | dgr |
| Dravidian languages | dra |
| Duala | dua |
| Dutch | dut/nld |
| Dutch, Middle (ca.1050-1350) | dum |
| Dyula | dyu |
| Dzongkha | dzo |
| Eastern Frisian | frs |
| Edo | bin |
| Efik | efi |
| Egyptian (Ancient) | egy |
| Ekajuk | eka |
| Elamite | elx |
| English | eng |
| English, Middle (1100-1500) | enm |
| English, Old (ca.450-1100) | ang |
| Erzya | myv |
| Esperanto | epo |
| Estonian | est |
| Ewe | ewe |
| Ewondo | ewo |
| Fang | fan |
| Fanti | fat |
| Faroese | fao |
| Fijian | fij |
| Filipino | fil |
| Finnish | fin |
| Finno-Ugrian languages | fiu |
| Flemish | dut/nld |
| Fon | fon |
| French | fre/fra |
| French, Middle (ca.1400-1600) | frm |
| French, Old (842-ca.1400) | fro |
| Friulian | fur |
| Fulah | ful |
| Ga | gaa |
| Gaelic | gla |
| Galibi Carib | car |
| Galician | glg |
| Ganda | lug |
| Gayo | gay |
| Gbaya | gba |
| Geez | gez |
| Georgian | geo/kat |
| German | ger/deu |
| German, Low | nds |
| German, Middle High (ca.1050-1500) | gmh |
| German, Old High (ca.750-1050) | goh |
| Germanic languages | gem |
| Gikuyu | kik |
| Gilbertese | gil |
| Gondi | gon |
| Gorontalo | gor |
| Gothic | got |
| Grebo | grb |
| Greek, Ancient (to 1453) | grc |
| Greek, Modern (1453-) | gre/ell |
| Greenlandic | kal |
| Guarani | grn |
| Gujarati | guj |
| Gwich'in | gwi |
| Haida | hai |
| Haitian | hat |
| Haitian Creole | hat |
| Hausa | hau |
| Hawaiian | haw |
| Hebrew | heb |
| Herero | her |
| Hiligaynon | hil |
| Himachali languages | him |
| Hindi | hin |
| Hiri Motu | hmo |
| Hittite | hit |
| Hmong | hmn |
| Hungarian | hun |
| Hupa | hup |
| Iban | iba |
| Icelandic | ice/isl |
| Ido | ido |
| Igbo | ibo |
| Ijo languages | ijo |
| Iloko | ilo |
| Imperial Aramaic (700-300 BCE) | arc |
| Inari Sami | smn |
| Indic languages | inc |
| Indo-European languages | ine |
| Indonesian | ind |
| Ingush | inh |
| Interlingua (International Auxiliary Language Association) | ina |
| Interlingue | ile |
| Inuktitut | iku |
| Inupiaq | ipk |
| Iranian languages | ira |
| Irish | gle |
| Irish, Middle (900-1200) | mga |
| Irish, Old (to 900) | sga |
| Iroquoian languages | iro |
| Italian | ita |
| Japanese | jpn |
| Javanese | jav |
| Jingpho | kac |
| Judeo-Arabic | jrb |
| Judeo-Persian | jpr |
| Kabardian | kbd |
| Kabyle | kab |
| Kachin | kac |
| Kalaallisut | kal |
| Kalmyk | xal |
| Kamba | kam |
| Kannada | kan |
| Kanuri | kau |
| Kapampangan | pam |
| Kara-Kalpak | kaa |
| Karachay-Balkar | krc |
| Karelian | krl |
| Karen languages | kar |
| Kashmiri | kas |
| Kashubian | csb |
| Kawi | kaw |
| Kazakh | kaz |
| Khasi | kha |
| Khoisan languages | khi |
| Khotanese | kho |
| Kikuyu | kik |
| Kimbundu | kmb |
| Kinyarwanda | kin |
| Kirdki | zza |
| Kirghiz | kir |
| Kirmanjki | zza |
| Klingon | tlh |
| Komi | kom |
| Kongo | kon |
| Konkani | kok |
| Korean | kor |
| Kosraean | kos |
| Kpelle | kpe |
| Kru languages | kro |
| Kuanyama | kua |
| Kumyk | kum |
| Kurdish | kur |
| Kurukh | kru |
| Kutenai | kut |
| Kwanyama | kua |
| Kyrgyz | kir |
| Ladino | lad |
| Lahnda | lah |
| Lamba | lam |
| Land Dayak languages | day |
| Lao | lao |
| Latin | lat |
| Latvian | lav |
| Leonese | ast |
| Letzeburgesch | ltz |
| Lezghian | lez |
| Limburgan | lim |
| Limburger | lim |
| Limburgish | lim |
| Lingala | lin |
| Lithuanian | lit |
| Lojban | jbo |
| Low German | nds |
| Low Saxon | nds |
| Lower Sorbian | dsb |
| Lozi | loz |
| Luba-Katanga | lub |
| Luba-Lulua | lua |
| Luiseno | lui |
| Lule Sami | smj |
| Lunda | lun |
| Luo (Kenya and Tanzania) | luo |
| Lushai | lus |
| Luxembourgish | ltz |
| Macedo-Romanian | rup |
| Macedonian | mac/mkd |
| Madurese | mad |
| Magahi | mag |
| Maithili | mai |
| Makasar | mak |
| Malagasy | mlg |
| Malay | may/msa |
| Malayalam | mal |
| Maldivian | div |
| Maltese | mlt |
| Manchu | mnc |
| Mandar | mdr |
| Mandingo | man |
| Manipuri | mni |
| Manobo languages | mno |
| Manx | glv |
| Maori | mao/mri |
| Mapuche | arn |
| Mapudungun | arn |
| Marathi | mar |
| Mari | chm |
| Marshallese | mah |
| Marwari | mwr |
| Masai | mas |
| Mayan languages | myn |
| Mende | men |
| Mi'kmaq | mic |
| Micmac | mic |
| Minangkabau | min |
| Mirandese | mwl |
| Mohawk | moh |
| Moksha | mdf |
| Moldavian | rum/ron |
| Moldovan | rum/ron |
| Mon-Khmer languages | mkh |
| Mong | hmn |
| Mongo | lol |
| Mongolian | mon |
| Montenegrin | cnr |
| Mossi | mos |
| Multiple languages | mul |
| Munda languages | mun |
| N'Ko | nqo |
| Nahuatl languages | nah |
| Nauru | nau |
| Navaho | nav |
| Navajo | nav |
| Ndebele, North | nde |
| Ndebele, South | nbl |
| Ndonga | ndo |
| Neapolitan | nap |
| Nepal Bhasa | new |
| Nepali | nep |
| Newari | new |
| Nias | nia |
| Niger-Kordofanian languages | nic |
| Nilo-Saharan languages | ssa |
| Niuean | niu |
| No linguistic content | zxx |
| Nogai | nog |
| Norse, Old | non |
| North American Indian languages | nai |
| North Ndebele | nde |
| Northern Frisian | frr |
| Northern Sami | sme |
| Northern Sotho | nso |
| Norwegian | nor |
| Norwegian Bokmål | nob |
| Norwegian Nynorsk | nno |
| Not applicable | zxx |
| Nubian languages | nub |
| Nuosu | iii |
| Nyamwezi | nym |
| Nyanja | nya |
| Nyankole | nyn |
| Nynorsk, Norwegian | nno |
| Nyoro | nyo |
| Nzima | nzi |
| Occidental | ile |
| Occitan (post 1500) | oci |
| Occitan, Old (to 1500) | pro |
| Official Aramaic (700-300 BCE) | arc |
| Oirat | xal |
| Ojibwa | oji |
| Old Bulgarian | chu |
| Old Church Slavonic | chu |
| Old Newari | nwc |
| Old Slavonic | chu |
| Oriya | ori |
| Oromo | orm |
| Osage | osa |
| Ossetian | oss |
| Ossetic | oss |
| Otomian languages | oto |
| Pahlavi | pal |
| Palauan | pau |
| Pali | pli |
| Pampanga | pam |
| Pangasinan | pag |
| Panjabi | pan |
| Papiamento | pap |
| Papuan languages | paa |
| Pashto | pus |
| Pedi | nso |
| Persian | per/fas |
| Persian, Old (ca.600-400 B.C.) | peo |
| Philippine languages | phi |
| Phoenician | phn |
| Pilipino | fil |
| Pohnpeian | pon |
| Polish | pol |
| Portuguese | por |
| Prakrit languages | pra |
| Provençal, Old (to 1500) | pro |
| Punjabi | pan |
| Pushto | pus |
| Quechua | que |
| Rajasthani | raj |
| Rapanui | rap |
| Rarotongan | rar |
| Reserved for local use | qaa-qtz |
| Romance languages | roa |
| Romanian | rum/ron |
| Romansh | roh |
| Romany | rom |
| Rundi | run |
| Russian | rus |
| Sakan | kho |
| Salishan languages | sal |
| Samaritan Aramaic | sam |
| Sami languages | smi |
| Samoan | smo |
| Sandawe | sad |
| Sango | sag |
| Sanskrit | san |
| Santali | sat |
| Sardinian | srd |
| Sasak | sas |
| Saxon, Low | nds |
| Scots | sco |
| Scottish Gaelic | gla |
| Selkup | sel |
| Semitic languages | sem |
| Sepedi | nso |
| Serbian | srp |
| Serer | srr |
| Shan | shn |
| Shona | sna |
| Sichuan Yi | iii |
| Sicilian | scn |
| Sidamo | sid |
| Sign Languages | sgn |
| Siksika | bla |
| Sindhi | snd |
| Sinhala | sin |
| Sinhalese | sin |
| Sino-Tibetan languages | sit |
| Siouan languages | sio |
| Skolt Sami | sms |
| Slave (Athapascan) | den |
| Slavic languages | sla |
| Slovak | slo/slk |
| Slovenian | slv |
| Sogdian | sog |
| Somali | som |
| Songhai languages | son |
| Soninke | snk |
| Sorbian languages | wen |
| Sotho, Northern | nso |
| Sotho, Southern | sot |
| South American Indian languages | sai |
| South Ndebele | nbl |
| Southern Altai | alt |
| Southern Sami | sma |
| Spanish | spa |
| Sranan Tongo | srn |
| Standard Moroccan Tamazight | zgh |
| Sukuma | suk |
| Sumerian | sux |
| Sundanese | sun |
| Susu | sus |
| Swahili | swa |
| Swati | ssw |
| Swedish | swe |
| Swiss German | gsw |
| Syriac | syr |
| Tagalog | tgl |
| Tahitian | tah |
| Tai languages | tai |
| Tajik | tgk |
| Tamashek | tmh |
| Tamil | tam |
| Tatar | tat |
| Telugu | tel |
| Tereno | ter |
| Tetum | tet |
| Thai | tha |
| Tibetan | tib/bod |
| Tigre | tig |
| Tigrinya | tir |
| Timne | tem |
| Tiv | tiv |
| tlhIngan-Hol | tlh |
| Tlingit | tli |
| Tok Pisin | tpi |
| Tokelau | tkl |
| Tonga (Nyasa) | tog |
| Tonga (Tonga Islands) | ton |
| Tsimshian | tsi |
| Tsonga | tso |
| Tswana | tsn |
| Tumbuka | tum |
| Tupi languages | tup |
| Turkish | tur |
| Turkish, Ottoman (1500-1928) | ota |
| Turkmen | tuk |
| Tuvalu | tvl |
| Tuvinian | tyv |
| Twi | twi |
| Udmurt | udm |
| Ugaritic | uga |
| Uighur | uig |
| Ukrainian | ukr |
| Umbundu | umb |
| Uncoded languages | mis |
| Undetermined | und |
| Upper Sorbian | hsb |
| Urdu | urd |
| Uyghur | uig |
| Uzbek | uzb |
| Vai | vai |
| Valencian | cat |
| Venda | ven |
| Vietnamese | vie |
| Volapük | vol |
| Votic | vot |
| Wakashan languages | wak |
| Walloon | wln |
| Waray | war |
| Washo | was |
| Welsh | wel/cym |
| Western Frisian | fry |
| Western Pahari languages | him |
| Wolaitta | wal |
| Wolaytta | wal |
| Wolof | wol |
| Xhosa | xho |
| Yakut | sah |
| Yao | yao |
| Yapese | yap |
| Yiddish | yid |
| Yoruba | yor |
| Yupik languages | ypk |
| Zande languages | znd |
| Zapotec | zap |
| Zaza | zza |
| Zazaki | zza |
| Zenaga | zen |
| Zhuang | zha |
| Zulu | zul |
| Zuni | zun |
License¶
| Label | License |
|---|---|
| URI | https://opengeometadata.org/ogm-aardvark/#license |
| Field Name | dct_license_sm |
| Field Type | Array of strings |
| Obligation | Optional |
| Multivalued | True |
| Purpose | To provide URI links to specific, known licenses. |
| Entry Guidelines | Enter a license URI. Recommended sources are Creative Commons or Open Data Commons. |
| Commentary | This field is only for URIs of known licenses. Do not enter a rightsstatement.org statement here, because those belong in the Rights field. |
| Controlled Vocabulary | No |
| Example Value | ["https://creativecommons.org/licenses/by/4.0/"] |
| Element Set | DCMI |
| Group | Rights |
Member Of¶
| Label | Member Of |
|---|---|
| URI | https://opengeometadata.org/ogm-aardvark/#member-of |
| Field Name | pcdm_memberOf_sm |
| Field Type | Array of strings |
| Obligation | Optional |
| Multivalued | True |
| Purpose | To link items that are part of a collection. |
| Entry Guidelines | Make a collection record to group records together. Enter the ID of the collection-level record. |
| Commentary | This is one of several fields that describe how records relate to each other. To link to a book or atlas (rather than a collection), see Is Part Of. |
| Controlled Vocabulary | No |
| Example Value | ["xyz-12394"] |
| Element Set | PCDM |
| Group | Relations |
Metadata Version¶
| Label | Metadata Version |
|---|---|
| URI | https://opengeometadata.org/ogm-aardvark/#metadata-version |
| Field Name | gbl_mdVersion_s |
| Field Type | String |
| Obligation | Required |
| Multivalued | False |
| Purpose | To clarify which GeoBlacklight metadata schema is being used. |
| Entry Guidelines | Enter a string: "GBL 1.0" or "Aardvark". |
| Commentary | There have been two metadata schema versions for GeoBlacklight applications: GeoBlacklight 1.0 (abbreviated to GBL 1.0) and OpenGeoMetadata Aardvark (abbreviated to Aardvark). |
| Controlled Vocabulary | Yes - strict |
| Example Value | "Aardvark" |
| Element Set | GBL |
| Group | Admin |
Modified¶
| Label | Modified |
|---|---|
| URI | https://opengeometadata.org/ogm-aardvark/#modified |
| Field Name | gbl_mdModified_dt |
| Field Type | String |
| Obligation | Required |
| Multivalued | False |
| Purpose | To inform administrators of when the metadata was last touched. |
| Entry Guidelines | Use the "W3C Date and Time Format" (YYYY-MM-DDThh: |
| Commentary | This value should indicate when the metadata (not the resource itself) was last modified. |
| Controlled Vocabulary | No |
| Example Value | "2015-01-01T12:00:00Z" |
| Element Set | GBL |
| Group | Admin |
Provider¶
| Label | Provider |
|---|---|
| URI | https://opengeometadata.org/ogm-aardvark/#provider |
| Field Name | schema_provider_s |
| Field Type | String |
| Obligation | Suggested |
| Multivalued | False |
| Purpose | To clarify which organization holds the resource or acts as the custodian for the metadata record and to help users understand which resources they can access. |
| Entry Guidelines | This field can be any string value. However, if the value corresponds to the name of an SVG icon in GeoBlacklight, the icon will display next to the title. See the GeoBlacklight documentation on adding SVG Icons for more details. |
| Commentary | This field was named Provenance in the GBL 1.0 metadata schema. |
| Controlled Vocabulary | Yes - not strict |
| Example Value | "University of Minnesota" |
| Element Set | schema.org |
| Group | Credits |
Publisher¶
| Label | Publisher |
|---|---|
| URI | https://opengeometadata.org/ogm-aardvark/#publisher |
| Field Name | dct_publisher_sm |
| Field Type | Array of strings |
| Obligation | Suggested |
| Multivalued | True |
| Purpose | To credit the entity that made a resource available for the first time. |
| Entry Guidelines | The suggested controlled vocabulary is the Library of Congress Name Authority File. |
| Commentary | The distinction between Publisher and Creator for data is often vague. Publishers should be the administrative body or organization that made the original resource available, regardless of who compiled or produced the data. |
| Controlled Vocabulary | No |
| Example Value | ["ML InfoMap (Firm)"] |
| Element Set | DCMI |
| Group | Credits |
References¶
| Label | References |
|---|---|
| URI | https://opengeometadata.org/ogm-aardvark/#references |
| Field Name | dct_references_s |
| Field Type | String (serialized JSON) |
| Obligation | Suggested |
| Multivalued | False |
| Purpose | To provide external URLs for accessing or describing the resource. |
| Entry Guidelines | This field defines external services and references using the CatInterOp approach. The field value is a serialized JSON array of key/value pairs, with keys representing namespace URI's and values the URL. See Configure References Links for detailed information about configuring this field. |
| Commentary | All of the external links for the resource are listed as a serialized JSON array of key/value pairs. The download key (http://schema.org/downloadUrl) is unique becaues it can be formatted as an array; see the section on multiple downloads for formatting guidelines. |
| Controlled Vocabulary | The "key" part of the key/value pairs are predefined in Reference URIs. |
| Example Value | "{\"http://schema.org/url\":\"http://purl.stanford.edu/bm662dm5913\"}" |
| Element Set | DCMI |
| Group | Links |
Relation¶
| Label | Relation |
|---|---|
| URI | https://opengeometadata.org/ogm-aardvark/#relation |
| Field Name | dct_relation_sm |
| Field Type | Array of strings |
| Obligation | Optional |
| Multivalued | True |
| Purpose | To link items with a general, unspecified relationship to each other. |
| Entry Guidelines | Enter only the ID of the related item(s). |
| Commentary | This is one of several fields that describe how records relate to each other. This field is the most general and should be used when a more specific hierarchical (parent-child) or temporal (version, replaces) relationship cannot be defined. |
| Controlled Vocabulary | No |
| Example Value | ["aoeu-987643"] |
| Element Set | DCMI |
| Group | Relations |
Replaces¶
| Label | Replaces |
|---|---|
| URI | https://opengeometadata.org/ogm-aardvark/#replaces |
| Field Name | dct_replaces_sm |
| Field Type | Array of strings |
| Obligation | Optional |
| Multivalued | True |
| Purpose | To point the user to a deprecated item(s). |
| Entry Guidelines | Enter the ID of the deprecated item(s). |
| Commentary | This field can be used on its own to point to an older deprecated dataset, or it can be used with Is Replaced By to link a revised version with its original. |
| Controlled Vocabulary | No |
| Example Value | ["qrst-71717"] |
| Element Set | DCMI |
| Group | Relations |
Resource Class¶
| Label | Resource Class |
|---|---|
| URI | https://opengeometadata.org/ogm-aardvark/#resource-class |
| Field Name | gbl_resourceClass_sm |
| Field Type | Array of strings |
| Obligation | Required |
| Multivalued | True |
| Purpose | To provide a top level set of categories for classifying the item. |
| Entry Guidelines | Choose one or more terms from the list of Resource Class Values below. |
| Commentary | This field is intended to help users sort between significantly different types of resources. |
| Controlled Vocabulary | Yes - strict |
| Example Value | ["Datasets"] |
| Element Set | GBL |
| Group | Categories |
Resource Class Values¶
- Collections
- Datasets
- Imagery
- Maps
- Web services
- Websites
- Other
Resource Type¶
| Label | Resource Type |
|---|---|
| URI | https://opengeometadata.org/ogm-aardvark/#resource-type |
| Field Name | gbl_resourceType_sm |
| Field Type | Array of strings |
| Obligation | Suggested |
| Multivalued | True |
| Purpose | To provide a secondary level of categories for classifying the spatial type or structure of a dataset. |
| Entry Guidelines | Choose one or more terms from the lists of Library of Congress or OpenGeoMetadata Resource Type Values below. Other terms are allowed. |
| Commentary | This field combines an established list of terms for scanned maps (Cartographic Genres) and a custom list for geospatial data types. Additional terms are welcome - please submit them to the community for review and inclusion into the official vocabulary. |
| Controlled Vocabulary | Yes - not strict |
| Example Value | ["Point data"] |
| Element Set | GBL |
| Group | Categories |
Resource Type Values-LOC¶
The following table lists terms from the Library of Congress Cartographic Genres. These values will be most applicable to scanned maps.
Resource Type Values-OGM¶
The following table lists terms from the OpenGeoMetadata community. They are most applicable to geospatial data.
| Term | Definition |
|---|---|
| Annotations | Text or graphics that label information about features |
| Basemaps | Background map that provides geographical context for other data layers |
| LiDAR | Elevation data, often provided as a point cloud or DEM |
| Line data | XY coordinate-based (vector) data represented as lines |
| Mesh data | Unstructured grid of vertices, edges, and faces, often with a temporal component; common formats include NetCDF, GRIB, XMDF, DAT, 3Di |
| Multi-spectral data | Raster data with more than 1 band, often capturing a range of visible and non-visible light (e.g. near-infrared) |
| Oblique photographs | Photos taken from the air or other elevated point at an angle of around 45 degrees |
| Point cloud data | XYZ coordinate data, often captured through LiDAR, 3D scanning, or photogrammetry and used to create 3D models |
| Point data | XY coordinate-based (vector) data represented as points |
| Polygon data | XY coordinate-based (vector) data represented as polygons |
| Raster data | Structured grid containing 1+ bands of decimal or integer data |
| Satellite imagery | Photos or radar images captured of the earth from orbiting satellites |
| Streetview photographs | Photos taken at an angle parallel to the ground surface (i.e. most photos taken while standing on the ground) |
| Table data | Structured tabular data |
Rights¶
| Label | Rights |
|---|---|
| URI | https://opengeometadata.org/ogm-aardvark/#rights_1 |
| Field Name | dct_rights_sm |
| Field Type | Array of strings |
| Obligation | Suggested |
| Multivalued | True |
| Purpose | To provide a free text field for rights information, such as usage, access, or copyright. |
| Entry Guidelines | Enter free text of generic, catch-all access and usage rights. |
| Commentary | This field is intended to be flexible to accommodate different types of rights and disclaimers. Users are encouraged to adopt one of the rightsstatements.org statements. This is a plain text field by default, but it can include clickable links if the GeoBlacklight software is customized; see the GeoBlacklight documentation on rendering HTML in metadata fields. |
| Controlled Vocabulary | No |
| Example Value | "All data is copyrighted by China Data Center and/or its suppliers. Derived works that include the source data must be merged with other value-added data in such a way that the derived work cannot be converted back to the original source data format. This data is licensed by UC Berkeley for research, educational, and other non-commercial use by authorized users, which include persons affiliated with UC Berkeley and walk-in users who must access the data in person at the library. https://rightsstatements.org/page/InC/1.0/?language=en." |
| Element Set | DCMI |
| Group | Rights |
Rights Holder¶
| Label | Rights Holder |
|---|---|
| URI | https://opengeometadata.org/ogm-aardvark/#rights-holder |
| Field Name | dct_rightsHolder_sm |
| Field Type | Array of strings |
| Obligation | Optional |
| Multivalued | True |
| Purpose | To clarify which person or organization owns or controls the rights for this version of the item. |
| Entry Guidelines | Enter the name of the person or organization. If applicable, the suggested controlled vocabulary is the Library of Congress Name Authority File. |
| Commentary | This field can be used for instances in which an an organization owns or otherwise controls access of a digital copy of an analog resource. This is different from Provider, which refers more to the resource or metadata steward. |
| Controlled Vocabulary | No |
| Example Value | "Johns Hopkins University Libraries" |
| Element Set | DCMI |
| Group | Rights |
Source¶
| Label | Source |
|---|---|
| URI | https://opengeometadata.org/ogm-aardvark/#source |
| Field Name | dct_source_sm |
| Field Type | Array of strings |
| Obligation | Optional |
| Multivalued | True |
| Purpose | To link items that have been derived from another item (e.g. a digitized shapefile from a historical map). |
| Entry Guidelines | Enter the ID of the item(s) from which the resource was derived. |
| Commentary | This is one of several fields that describe how records relate to each other. This field is intended to describe a derivate relationship where the resource is based wholly on another, rather than being a version of it (see Is Version Of). |
| Controlled Vocabulary | No |
| Example Value | ["abcd-988763"] |
| Element Set | DCMI |
| Group | Relations |
Spatial Coverage¶
| Label | Spatial Coverage |
|---|---|
| URI | https://opengeometadata.org/ogm-aardvark/#spatial-coverage |
| Field Name | dct_spatial_sm |
| Field Type | Array of strings |
| Obligation | Suggested |
| Multivalued | True |
| Purpose | To provide the user with a list of searchable and selectable place names. |
| Entry Guidelines | Place name text strings should be specified out to the nation level. It is typical for the place name to represent the largest extent the data layer represents. Our recommended thesaurus is GeoNames. |
| Commentary | It is recommended to have at least one place name for each layer that corresponds to the logical extent of the area of that layer. |
| Controlled Vocabulary | No |
| Example Value | ["Philadelphia, Pennsylvania, United States"] |
| Element Set | DCMI |
| Group | Spatial |
Subject¶
| Label | Subject |
|---|---|
| URI | https://opengeometadata.org/ogm-aardvark/#subject |
| Field Name | dct_subject_sm |
| Field Type | Array of strings |
| Obligation | Optional |
| Multivalued | True |
| Purpose | To provide an all-purpose field for subjects. |
| Entry Guidelines | Any value is allowed, but controlled vocabularies are encouraged. |
| Commentary | Institutions may rely on existing vocabularies specific to a field or project, or they may choose to develop their own set of controlled vocabularies. |
| Controlled Vocabulary | No |
| Example Value | ["Elections", "Voting"] |
| Element Set | DCMI |
| Group | Categories |
Suppressed¶
| Label | Suppressed |
|---|---|
| URI | https://opengeometadata.org/ogm-aardvark/#suppressed |
| Field Name | gbl_suppressed_b |
| Field Type | Boolean or string |
| Obligation | Optional |
| Multivalued | False |
| Purpose | To hide items from users in the search results. If set to "true", the record will not appear in search results. It is still accessible from the data relations widgets and via direct URL. |
| Entry Guidelines | Only one of two values are allowed: true or false. |
| Commentary | This field is useful for multipart items with identical metadata, such as pages in an atlas or series. |
| Controlled Vocabulary | Yes - strict |
| Example Value | true or "true" |
| Element Set | GBL |
| Group | Admin |
Temporal Coverage¶
| Label | Temporal Coverage |
|---|---|
| URI | https://opengeometadata.org/ogm-aardvark/#temporal-coverage |
| Field Name | dct_temporal_sm |
| Field Type | Array of strings |
| Obligation | Suggested |
| Multivalued | True |
| Purpose | To provide the user with a free text description of the time period or ranges of what is depicted in the resource. |
| Entry Guidelines | This is a text string and can indicate uncertainty. |
| Commentary | Since this field is multi-valued, multiple strings can be used to indicate the time period the resource depicts, when the data was collected, and/or when the resources was created. |
| Controlled Vocabulary | No |
| Example Value | ["1980-1995", "Late 20th century"] |
| Element Set | DCMI |
| Group | Temporal |
Theme¶
| Label | Theme |
|---|---|
| URI | https://opengeometadata.org/ogm-aardvark/#theme |
| Field Name | dcat_theme_sm |
| Field Type | Array of strings |
| Obligation | Optional |
| Multivalued | True |
| Purpose | To provide a dedicated field that is restricted to terms based on ISO Topic Categories. |
| Entry Guidelines | Insert one or more of the values from the list of Theme Values below. |
| Commentary | Although ISO Topic categories are well established and widely used, the spellings of these terms vary across domains and disciplines. The Aardvark schema uses shortened terms for better readability, and adds three new values "Events", "Imagery", and "Land Cover" (the latter two split from imageryBaseMapsEarthCover). |
| Controlled Vocabulary | Yes - strict |
| Example Value | ["Boundaries", "Land Cover"] |
| Element Set | DCAT |
| Group | Categories |
Theme Values¶
| Theme | Related ISO Topic Category | Definition (from NOAA) |
|---|---|---|
| Agriculture | farming | Rearing of animals and/or cultivation of plants. Examples: agriculture, irrigation, aquaculture, plantations, herding, pests and diseases affecting crops and livestock. |
| Biology | biota | Flora and/or fauna in natural environment. Examples: wildlife, vegetation, biological sciences, ecology, wilderness, sealife, wetlands, habitat. |
| Boundaries | boundaries | Legal land descriptions. Examples: political and administrative boundaries. |
| Climate | climatologyMeteorologyAtmosphere | Processes and phenomena of the atmosphere. Examples: cloud cover, weather, climate, atmospheric conditions, climate change, precipitation. |
| Economy | economy | Economic activities, conditions and employment. Examples: production, labour, revenue, commerce, industry, tourism and ecotourism, forestry, fisheries, commercial or subsistence hunting, exploration and exploitation of resources such as minerals, oil and gas. |
| Elevation | elevation | Height above or below sea level. Examples: altitude, bathymetry, digital elevation models, LiDAR datasets, slope, derived products, topographic maps. |
| Environment | environment | Environmental resources, protection and conservation. Examples: environmental pollution, waste storage and treatment, environmental impact assessment, monitoring environmental risk, nature reserves, landscape. |
| Events | society; climatologyMeteorologyAtmosphere | Examples: natural disasters, concerts, races, protests, arrests, accidents, Covid cases. |
| Geology | geoscientificInformation | Information pertaining to earth sciences. Examples: geophysical features and processes, geology, minerals, sciences dealing with the composition, structure and origin of the earth’s rocks, risks of earthquakes, volcanic activity, landslides, gravity information, soils, permafrost, hydrogeology, erosion. |
| Health | health | Health, health services, human ecology, and safety. Examples: disease and illness, factors affecting health, hygiene, substance abuse, mental and physical health, health services. |
| Imagery | imageryBaseMapsEarthCover | Imagery of the earth's surface. Examples: aerial photos, oblique and streetview imagery, orthoimagery, satellite photos and multispectral imagery. |
| Inland Waters | inlandWaters | Inland water features, drainage systems and their characteristics. Examples: rivers and glaciers, salt lakes, water utilization plans, dams, currents, floods, water quality, hydrographic charts. |
| Land Cover | imageryBaseMapsEarthCover | Classifications about natural features on the Earth's surface. Examples: forests, wetlands, impervious surfaces, agriculture, open water. |
| Location | location | Positional information and services. Examples: addresses, geodetic networks, control points, postal zones and services, place names. |
| Military | intelligenceMilitary | Examples: Military bases, structures, activities Examples: barracks, training grounds, military transportation, information collection. |
| Oceans | oceans | features and characteristics of salt water bodies (excluding inland waters) Examples: tides, tidal waves, coastal information, reefs. |
| Property | planningCadastre | Information used for appropriate actions for future use of the land. Examples: land use maps, zoning maps, cadastral surveys, land ownership. |
| Society | society | Characteristics of society and cultures. Examples: settlements, anthropology, archaeology, education, traditional beliefs, manners and customs, demographic data, recreational areas and activities, social impact assessments, crime and justice, census information. |
| Structure | structure | Man-made construction. Examples: buildings, museums, churches, factories, housing, monuments, shops, towers. |
| Transportation | transportation | Means and aids for conveying persons and/or goods. Examples: roads, airports/airstrips, shipping routes, tunnels, nautical charts, vehicle or vessel location, aeronautical charts, railways. |
| Utilities | utilitiesCommunication | Energy, water and waste systems and communications infrastructure and services. Examples: hydroelectricity, geothermal, solar and nuclear sources of energy, water purification and distribution, sewage collection and disposal, electricity and gas distribution, data communication, telecommunication, radio, communication networks. |
Title¶
| Label | Title |
|---|---|
| URI | https://opengeometadata.org/ogm-aardvark/#title |
| Field Name | dct_title_s |
| Field Type | String |
| Obligation | Required |
| Multivalued | False |
| Purpose | To provide the user with the name of the resource. |
| Entry Guidelines | Titles should include place names and dates when available. |
| Commentary | The title is the most prominent metadata field that users see when browsing or scanning search results. Since many datasets are created with ambiguous or non-unique titles, it may be worth the effort to improve or enhance them. The ideal sequence of a title is something akin to "Topic of Layer: Place, Year." Putting the year at the end of a title produces better search results, since titles are left-anchored. |
| Controlled Vocabulary | No |
| Example Value | "Address Points: Ann Arbor, Michigan, 2010" |
| Element Set | DCMI |
| Group | Descriptive |
WxS Identifier¶
| Label | WxS Identifier |
|---|---|
| URI | https://opengeometadata.org/ogm-aardvark/#wxs-identifier |
| Field Name | gbl_wxsIdentifier_s |
| Field Type | String |
| Obligation | Conditionally required |
| Multivalued | False |
| Purpose | To identify the layer or store for a WFS, WMS, or WCS web service so the application can construct the full web service link. |
| Entry Guidelines | Only the layer name is added here. The base service endpoint URLs (e.g. "https://maps-public.geo.nyu.edu/geoserver/sdr/wms") are added to the References field. |
| Commentary | This value is only used when a WxS service is listed in the References field. The WxS Identifer is used to point to specific layers within an OGC geospatial web service. This field is not used for ArcGIS Rest Services. |
| Controlled Vocabulary | No |
| Example Value | "druid:vr593vj7147" |
| Element Set | GBL |
| Group | Links |