ISO Table View Back to Collection NOAA/NESDIS/NGDC/MGG/Geophysical_Models
View Metadata As: Get Data, FAQ, HTML, 19139 XML
Assess Metadata For: Completeness, DOI Readiness, CSW Readiness, Components

Metadata Identifier: gov.noaa.ngdc.mgg.geophysical_models:Declination_Calculator

Aggregation Info | Bands | Citations | Constraints | Coverage Descriptions | Dimensions | Extents | Formats | Geographic Bounding Box
Georectified Information | Georeferenceable Information | Identifiers | Instruments | Mediums | OnlineResources | Operations
Platforms | Process Steps | Range Elements | Reference Systems | Responsible Parties | Series | Sources | Spatial Grids | Temporal Extents

MD_DataIdentification

Count Component Title Abstract
1 Declination Calculator Declination is calculated using the current International Geomagnetic Reference Field (IGRF) model. Declination is calculated using the current World Magnetic Model (WMM) or International Geomagnetic Reference Field (IGRF) model. While results are typically accurate to 30 minutes of arc, users should be aware that several environmental factors can cause disturbances in the magnetic field.
Top

SV_Identification

none found
Top

CI_Citation

Count Component Title Date Citation Identifier
1 Declination Calculator
    2009-12-01
1 IGRF11 Spherical Harmonic Model.
    2010-10-12
1 World Geodetic System 1984
    2007-08-27
Unresolved Xlinks
GCMD Science Keywords at: /gmi:MI_Metadata/gmd:identificationInfo[1]/gmd:MD_DataIdentification[1]/gmd:descriptiveKeywords[1]/gmd:MD_Keywords[1]/gmd:thesaurusName[1]
GCMD Location Keywords at: /gmi:MI_Metadata/gmd:identificationInfo[1]/gmd:MD_DataIdentification[1]/gmd:descriptiveKeywords[2]/gmd:MD_Keywords[1]/gmd:thesaurusName[1]
Top

CI_Series

none found
Top

CI_ResponsibleParty

Count Component Individual Organization Position Email Role Linkage
1 resourceProvider http://www.epsg-registry.org/export.htm?gml=urn:ogc:def:crs:EPSG::4326
1 http://www.ngdc.noaa.gov/IAGA/vmod/igrf.html
4 DOC/NOAA/NESDIS/NCEI > National Centers for Environmental Information, NESDIS, NOAA, U.S. Department of Commerce distributor http://www.ngdc.noaa.gov/geomag-web/#declination
Unresolved Xlinks
Brian Meyer at: /gmi:MI_Metadata/gmd:contact[1]
EPSG Registry at: /gmi:MI_Metadata/gmd:referenceSystemInfo[1]/gmd:MD_ReferenceSystem[1]/gmd:referenceSystemIdentifier[1]/gmd:RS_Identifier[1]/gmd:authority[1]/gmd:CI_Citation[1]/gmd:citedResponsibleParty[2]
NCEI (publisher) at: /gmi:MI_Metadata/gmd:identificationInfo[1]/gmd:MD_DataIdentification[1]/gmd:citation[1]/gmd:CI_Citation[1]/gmd:citedResponsibleParty[1]
Geomagnetic Modeling Team at: /gmi:MI_Metadata/gmd:identificationInfo[1]/gmd:MD_DataIdentification[1]/gmd:citation[1]/gmd:CI_Citation[1]/gmd:citedResponsibleParty[2]
Geomagnetic Modeling Team at: /gmi:MI_Metadata/gmd:identificationInfo[1]/gmd:MD_DataIdentification[1]/gmd:pointOfContact[1]
Geomagnetic Modeling Team at: /gmi:MI_Metadata/gmd:distributionInfo[1]/gmd:MD_Distribution[1]/gmd:distributionFormat[1]/gmd:MD_Format[1]/gmd:formatDistributor[1]/gmd:MD_Distributor[1]/gmd:distributorContact[1]
Geomagnetic Modeling Team at: /gmi:MI_Metadata/gmd:distributionInfo[1]/gmd:MD_Distribution[1]/gmd:distributor[1]/gmd:MD_Distributor[1]/gmd:distributorContact[1]
Anna Milan at: /gmi:MI_Metadata/gmd:metadataMaintenance[1]/gmd:MD_MaintenanceInformation[1]/gmd:contact[1]
Top

CI_OnlineResource

Count Component Linkage Name Description Function
1 http://www.epsg-registry.org/export.htm?gml=urn:ogc:def:crs:EPSG::4326 WGS 84 GML of World Geodetic System 1984 coordinate reference system. information
1 http://www.ngdc.noaa.gov/IAGA/vmod/igrf.html
4 http://www.ngdc.noaa.gov/geomag-web/#declination
Top

MD_Identifier or RS_Identifier

Count Component Code
1 Processing steps were carried out collectively by the developers of the model. These developers are listed as authors of the associated paper "International Geomagnetic Reference Field: the eleventh generation".
1 urn:ogc:def:crs:EPSG::4326
Top

EX_Extent

Bounding Box Temporal Extent
Count Component Description West East North South Start End
1 The IGRF is a global model that extends back to the begining of the 20th Century and is updated every 5 years to include a forcast model for the following 5 years using observations of the Earth's magnetic field over time to interpolate -180 180 90 -90 1900-01-01 2014-12-31
Top

EX_GeographicBoundingBox

Count Component West East North South
1 -180 180 90 -90
Top

EX_TemporalExtent

Count Component Start End
1 1900-01-01 2014-12-31
Top

MD_Format

Count Component Name Version specification
1 CSV Format 1 The Declination Calculator creates an Comma Seperated Variable (CSV) file which reports the location and date queried as well as the declination and the annual change in declination in decimal minutes per year.
1 HTML Format 1 The Declination Calculator creates an HTML pop-up window which superimposes a compass rose, indicating the declination, onto the location queried and reports the annual change in declination.
Geomagnetic Modeling Team at Xpath: /gmi:MI_Metadata/gmd:distributionInfo[1]/gmd:MD_Distribution[1]/gmd:distributionFormat[1]/gmd:MD_Format[1]/gmd:formatDistributor[1]/gmd:MD_Distributor[1]/gmd:distributorContact[1]
1 PDF Format 1 The Declination Calculator creates a Portable Document Format file (PDF) file which reports the location and date queried as well as the declination and the annual change in declination in decimal minutes per year.
1 XML Format 1 The Declination Calculator creates an XML file which reports the location and date queried as well as the declination and the annual change in declination in decimal minutes per year.
Top

MD_Medium

none found
Top

MD_Constraints

Unresolved Xlinks
NOAA Disclaimer at: /gmi:MI_Metadata/gmd:identificationInfo[1]/gmd:MD_DataIdentification[1]/gmd:resourceConstraints[1]
NGDC Copyright at: /gmi:MI_Metadata/gmd:identificationInfo[1]/gmd:MD_DataIdentification[1]/gmd:resourceConstraints[2]
Top

MD_ReferenceSystem

Count Component Code Authority Title
1 WGS 84 urn:ogc:def:crs:EPSG::4326 World Geodetic System 1984
EPSG Registry at Xpath: /gmi:MI_Metadata/gmd:referenceSystemInfo[1]/gmd:MD_ReferenceSystem[1]/gmd:referenceSystemIdentifier[1]/gmd:RS_Identifier[1]/gmd:authority[1]/gmd:CI_Citation[1]/gmd:citedResponsibleParty[2]
Top

MD_GridSpatialRepresentation

Count Component Number of Dimensions Cell Geometry Code
1 3 point
Top

MD_Georeferenceable or MI_Georeferenceable

none found
Top

MD_Georectified or MI_Georectified

none found
Top

MD_Dimension

none found
Top

MD_CoverageDescription or MI_CoverageDescription

Count Component Attribute Description Content Type
1 Individual Value
Top

MD_Band or MI_Band

Count Component Identifier Descriptor
1 Declination
Top

MI_RangeElementDescription

none found
Top

MD_AggregateInformation

none found
Top

LE_Source or LI_Source

Unresolved Xlinks
IGRF 11 at: /gmi:MI_Metadata/gmd:dataQualityInfo[2]/gmd:DQ_DataQuality[1]/gmd:lineage[1]/gmd:LI_Lineage[1]/gmd:source[1]
Top

LE_ProcessStep or LI_ProcessStep

Count Component DateTime Description
1 User input of area of interest and time for desired data grid into a web interface.
1 User data is sent via HTTP request to a java servelet hosted on a local NGDC server. This checks that all of the necessary information to run the model executable correctly is present and in the correct format.
1 NGDC server accesses a C executable, in this case the IGRF executable, and inputs the user data and runs the executable to obtain desired output parameters in XML format.
1 The XML created by the executable is sent back to NGDC server and input into the Java servelet which reformats the output into the format designated by the user at the begining of the process. This reformatted information is returned to the User's webpage.
Top

MI_Operation

none found
Top

MI_Platform

none found
Top

MI_Instrument

none found
Top