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attributes.txt
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GRIIDC Attribute Requirements vs. ACDD and NODC
===============================================
Steven K. Baum
v0.2, 2015-09-28
:doctype: book
:toc:
:icons:
:numbered!:
Here is a comparison between the information required by the ISO-19115-2 editor at:
https://data.gulfresearchinitiative.org/metadata-editor/[+https://data.gulfresearchinitiative.org/metadata-editor/+]
and both the ACDD 1-3 recommended attributes at:
http://wiki.esipfed.org/index.php/Attribute_Convention_for_Data_Discovery_1-3[+http://wiki.esipfed.org/index.php/Attribute_Convention_for_Data_Discovery_1-3+]
and an NODC template at:
http://www.nodc.noaa.gov/data/formats/netcdf/v1.1/point.cdl[+http://www.nodc.noaa.gov/data/formats/netcdf/v1.1/point.cdl+]
The NODC comparison column is omitted when it is identical to the ACDD comparison column.
The sections below correspond to the seven sections on the GOMRI page.
Dataset Contact
---------------
This section collects contact information about the person primarily responsible for the creation and maintenance of the dataset. Provides future researchers the means to contact the dataset originator if additional information is needed.
*Note:* The +role+ is a pulldown list containing +Resource Provider+, +Custodian+, +Owner+, +Distributer+, +Originator+, +Point of
Contact+, +Principle Investigator+, +Processor+, +Publisher+ and +Author+ as choices.
-----
GRIIDC ACDD Suggested NetCDF Name
individualName creator_name - R [datasetContact_individualName]
organisationName creator_institution - S [datasetContact_organisationName]
positionName x datasetContact_positionName
phone:voice x datasetContact_phone_voice
phone:facsimile x datasetContact_phone_fax
address:deliveryPoint x datasetContact_address_deliveryPoint
address:city x datasetContact_address_city
address:administrativeArea x datasetContact_address_adminArea
address:postCode x datasetContact_address_postCode
address:country x datasetContact_address_country
address:electronicMailAddress creator_email - R [datasetContact_address_email]
role x datasetContact_role
-----
Dataset Information
-------------------
This section collects identifying and amplifying information about the dataset. Provides future researchers with specific details on the dataset content and additional context regarding the broader purpose of the dataset.
-----
GRIIDC ACDD Suggested NetCDF Name
citation:title title - HR [dataset_title]
citation:alternateTitle x dataset_alternateTitle
citation:date date_created - R [dataset_date_created]
abstract summary - HR [dataset_abstract]
purpose x dataset_purpose
status x dataset_status
supplementalInformation platform [dataset_supplementalInformation]
platform_vocabulary
instrument
instrument_vocabulary
references
processing_level
-----
*Note:* The GRIIDC +supplementalInformation+ variable contains the concatenation of the information entered in six separate GUI boxes: data parameters and
units, methods, instruments, sampling scales and rates, error analysis, and provenance and historical references.
The ACDD names shown are the best matches to the supplemental information descriptions. Some others might also be included depending on how one wants to stretch or shrink various definitions.
Keywords
--------
This section collects keywords/key phrases describing the theme and location of the dataset. Provides GRIIDC and future researchers with short descriptions to aid search. Some datasets may not have relevant place keywords (ex. lab simulations).
-----
GRIIDC ACDD Suggested NetCDF Name
descriptiveKeywords keywords [GRIIDC_keywords]
topicCategory x topicCategory
-----
Data Extent
-----------
This section collects information describing the spatial and temporal extent of the dataset contents. Provides GRIIDC and future researchers the means to search for datasets by location and/or time. Some datasets may not have relevant a location or time (ex. lab simulations); a short explanation is provided in these cases.
-----
GRIIDC ACDD Suggested NetCDF Name
geographicElement:polygon
exterior:LinearRing geospatial_bounds - R
geospatial_bounds_crs - R
geospatial_bounds_vertical_crs - R
geospatial_lat_min - R
geospatial_lat_max - R
geospatial_lat_units - S
geospatial_lat_resolution - S
geospatial_lon_min - R
geospatial_lon_max - R
geospatial_lon_units - S
geospatial_lon_resolution - S
geospatial_vertical_min - R
geospatial_vertical_max - R
geospatial_vertical_units - S
geospatial_vertical_resolution - S
geospatial_vertical_positive - R
temporalElement:TimePeriod
description time_coverage_resolution - R [timePeriod_description]
time_coverage_duration - R
start_date time_coverage_start - R
end_date time_coverage_end - R
-----
*Note*: The geographic extent in GRIIDC is stored in a http://erouault.blogspot.com/2014/04/gml-madness.html[GML +Polygon+ element]. The geographic extent in ACDD is contained in sixteen separate
+geospatial_*+ attributes, and in the NODC guidelines by thirteen separate +geospatial+*+ attributes. According to the ACDD
web page, there is a mapping between its recommendations and ISO 19115-2 detailed at:
http://wiki.esipfed.org/index.php/Attribute_Convention_for_Data_Discovery_%28ACDD%29_Mappings[+http://wiki.esipfed.org/index.php/Attribute_Convention_for_Data_Discovery_%28ACDD%29_Mappings+]
The mapping is:
-----
ACDD Element GML Element
geospatial_lat_min southBoundLatitude
geospatial_lat_max northBoundLatitude
geospatial_lon_min westBoundLongitude
geospatial_lon_max eastBoundLongitude
geospatial_vertical_min EX_VerticalExtent:minimumValue
geospatial_vertical_max EX_VerticalExtent:maximumValue
time_coverage_start TimePeriod:beginPosition
time_coverage_end TimePeriod:endPosition
time_coverage_duration [here be confusing dragons]
time_coverage_resolution NONE
-----
Distribution Info
-----------------
This section collects technical details related to the distribution of the dataset. Provides GRIIDC and future researchers the means to evaluate the means needed to download and read the dataset.
-----
GRIIDC ACDD Suggested NetCDF Name
distributorFormat:name x distributionFormat
distributorFormat:fileDecompressionTechnique x distributionFormat_compression
distributorTransferOptions:transferSize x distributionTransfer_size
distributorTransferOptions:onLine:linkage x distributionTransfer_url
distributorTransferOptions:onLine:protocol x distributionTransfer_protocol
-----
Distribution Contact
--------------------
This section collects contact information about the organization or person primarily responsible for the distribution of the dataset. Generally this will contain GRIIDC contact information, but externally hosted datasets should provide their distributor contact information here.
-----
GRIIDC ACDD Suggested NetCDF Name
organisationName publisher_name [distributionContact_organisationName]
contactInfo:phone:voice x distributionContact_phone_voice
contactInfo:phone:facsimile x distributionContact_phone_fax
contactInfo:address:deliveryPoint x distributionContact_address_deliveryPoint
contactInfo:address:city x distributionContact_address_city
contactInfo:address:administrativeArea x distributionContact_address_adminArea
contactInfo:address:postalCode x distributionContact_address_postalCode
contactInfo:address:country x distributionContact_address_country
contactInfo:address:electronicMailAddress publisher_email [distributionContact_email]
contactInfo:onlineResource:linkage publisher_url [distributionContact_url]
contactInfo:onlineResource:protocol x distributionContact_protocol
role x distributionContact_role
-----
Metadata Contact
----------------
This section collects contact information about the person primarily responsible for the creation and maintenance of this metadata record. Provides GRIIDC and future researchers the means to contact the metadata author if additional information is needed.
-----
GRIIDC ACDD Suggested NetCDF Name
individualName x metadataContact_individualName
organisationName x metadataContact_organisationName
positionName x metadataContact_positionName
contactInfo:phone:voice x metadataContact_phone
contactInfo:phone:facsimile x metadataContact_fax
contactInfo:address:deliveryPoint x metadataContact_address_deliveryPoint
contactInfo:address:city x metadataContact_address_city
contactInfo:address:administrativeArea x metadataContact_address_adminArea
contactInfo:address:postalCode x metadataContact_address_postalCode
contactInfo:address:country x metadataContact_address_country
contactInfo:address:electronicMailAddress x metadataContact_email
-----