Sea Ice Index, Version 2

Dataset Identification:

Resource Abstract:
The <a href="/data/seaice_index/">Sea Ice Index</a> provides a quick look at Arctic- and Antarctic-wide changes in sea ice. It is a source for consistent, up-to-date sea ice extent and concentration images, in PNG format, and data values, in ASCII text files, from November 1978 to the present. Sea Ice Index images also depict trends and anomalies in ice cover calculated using a 30-year reference period of 1981 through 2010. The images and data are produced in a consistent way that makes the Index time-series appropriate for use when looking at long-term trends in sea ice cover. Both monthly and daily products are available. However, monthly products are better to use for long-term trend analysis because errors in the daily product tend to be averaged out in the monthly product and because day-to-day variations are often the result of short-term weather.
Citation
Title Sea Ice Index, Version 2
publication  Date   2016-07-19
Edition 2
edition Date 2016-07-19
cited responsible party - principalInvestigator
individual Name Florence Fetterer
organisation Name  National Snow and Ice Data Center
Contact information
Address
, Boulder, CO,  Country USA
electronic Mail Address fetterer@nsidc.org
Linkage for online resource
name 
URL: http://nsidc.org
Description 
cited responsible party - principalInvestigator
individual Name Kenneth Knowles
organisation Name  Operational Systems, Inc.
Contact information
Address
National Snow and Ice Data CenterCIRES, 449 UCBUniversity of Colorado, Boulder, CO, 80309-0449 Country USA
Linkage for online resource
name 
URL: http://nsidc.org
Description 
cited responsible party - principalInvestigator
individual Name Walt Meier
organisation Name  National Snow and Ice Data Center
Contact information
Address
, Boudler, CO, 80309 Country USA
electronic Mail Address walt@nsidc.org
Linkage for online resource
name 
URL: http://nsidc.org
Description 
cited responsible party - principalInvestigator
individual Name Matthew Savoie
organisation Name  National Snow and Ice Data Center
Contact information
Address
CIRES, 449 UCBUniversity of Colorado, Boulder, CO, 80309-0449 Country USA
electronic Mail Address savoie@nsidc.org
Linkage for online resource
name 
URL: http://nsidc.org
Description 
cited responsible party - principalInvestigator
individual Name Ann Kathryn Windnagel
organisation Name  National Snow and Ice Data Center
Contact information
Address
, , ,  Country 
Linkage for online resource
name 
URL: http://nsidc.org
Description 
cited responsible party - publisher
organisation Name  National Snow and Ice Data Center
Contact information
Address
, Boulder, Colorado,  Country USA
Linkage for online resource
name 
URL: http://nsidc.org
Description 
Topic Category:  climatologyMeteorologyAtmosphere,oceans
Keywords:
Location keywords:
Continent > Antarctica
Geographic Region > Arctic
thesaurus name >
Title NASA / GCMD Location Keywords
revision  Date   2008-02-05
Theme keywords (theme):
EARTH SCIENCE > Cryosphere > Sea Ice > Ice Extent
EARTH SCIENCE > Oceans > Sea Ice > Ice Extent
EARTH SCIENCE > Cryosphere > Sea Ice > Ice Growth/Melt
EARTH SCIENCE > Oceans > Sea Ice > Ice Growth/Melt
EARTH SCIENCE > Cryosphere > Sea Ice > Sea Ice Concentration
EARTH SCIENCE > Oceans > Sea Ice > Sea Ice Concentration
thesaurus name >
Title NASA / GCMD Science Keywords
revision  Date   2008-02-05
platform Keywords
Earth Observation Satellites > DMSP
Earth Observation Satellites > DMSP 5D-3/F17
Earth Observation Satellites > DMSP 5D-3/F18
Earth Observation Satellites > Nimbus-7
thesaurus name >
Title NASA / GCMD Platform Keywords
revision  Date   2016-06-10
instrument Keywords
SMMR > Scanning Multichannel Microwave Radiometer
SSM/I > Special Sensor Microwave/Imager
SSMIS > Special Sensor Microwave Imager/Sounder
thesaurus name >
Title NASA / GCMD Instrument Keywords
revision  Date   2016-06-01
Theme keywords (theme):
Cryosphere
thesaurus name >
Title Realm > Hydrosphere
publication  Date   2018-11-21
other Citation Details  Cinergi keyword enhanced.File generated at Wed Nov 21 22:31:56 UTC 2018
Theme keywords (theme):
Geography
thesaurus name >
Title Science Domain > Earth Science
publication  Date   2018-11-21
other Citation Details  Cinergi keyword enhanced.File generated at Wed Nov 21 22:31:56 UTC 2018
Theme keywords (theme):
Cover
Continent
thesaurus name >
Title Realm > Geosphere
publication  Date   2018-11-21
other Citation Details  Cinergi keyword enhanced.File generated at Wed Nov 21 22:31:56 UTC 2018
Theme keywords (theme):
Ocean
thesaurus name >
Title Feature > Marine Feature
publication  Date   2018-11-21
other Citation Details  Cinergi keyword enhanced.File generated at Wed Nov 21 22:31:56 UTC 2018
Theme keywords (theme):
Sea Ice
thesaurus name >
Title Feature > glacial feature
publication  Date   2018-11-21
other Citation Details  Cinergi keyword enhanced.File generated at Wed Nov 21 22:31:56 UTC 2018
Theme keywords (theme):
Indexing
Analysis
thesaurus name >
Title Method > information processing
publication  Date   2018-11-21
other Citation Details  Cinergi keyword enhanced.File generated at Wed Nov 21 22:31:56 UTC 2018
Theme keywords (theme):
Earth Observation Satellite
thesaurus name >
Title Equipment > Satellites
publication  Date   2018-11-21
other Citation Details  Cinergi keyword enhanced.File generated at Wed Nov 21 22:31:56 UTC 2018
Theme keywords (theme):
Time Series
thesaurus name >
Title Resource Type > Dataset
publication  Date   2018-11-21
other Citation Details  Cinergi keyword enhanced.File generated at Wed Nov 21 22:31:56 UTC 2018
Theme keywords (theme):
DMSP
thesaurus name >
Title Material > Chemical
publication  Date   2018-11-21
other Citation Details  Cinergi keyword enhanced.File generated at Wed Nov 21 22:31:56 UTC 2018
Theme keywords (theme):
National Snow and Ice Data Center
Operational Systems
thesaurus name >
Title Virtual International Authority File (VIAF) Corporate Names
publication  Date   2018-11-21
other Citation Details  Cinergi keyword enhanced.File generated at Wed Nov 21 22:31:56 UTC 2018
Theme keywords (theme):
Observation
thesaurus name >
Title Activity > Observation
publication  Date   2018-11-21
other Citation Details  Cinergi keyword enhanced.File generated at Wed Nov 21 22:31:56 UTC 2018
purpose:
Scientific Research
Resource language:  eng; usa
Character set encoding of resource:  UTF8
Resource progress code:  underdevelopment
Resource Maintenance Information
maintenance or update frequency:  asNeeded
update scope:  dataset
update scope:  series
update scope:  attribute
Constraints on resource usage:
Legal Constraints
Access Constraints  otherRestrictions
use constraint:  otherRestrictions
Other constraints
Access Constraints : none
Other constraints
Use Constraints : none
Resource extent
Extent description
SpatialCoverageType=HORIZONTAL, SpatialGranuleSpatialRepresentation=GEODETIC, TemporalRangeType=Continuous Range, TimeType=UTC
Geographic Extent
Geographic Bounding Box
westBoundLongitude  -180.0
eastBoundLongitude  180.0
northBoundLatitude  -39.23
southBoundLatitude  -90.0
Geographic Bounding Box
westBoundLongitude  -180.0
eastBoundLongitude  180.0
northBoundLatitude  90.0
southBoundLatitude  30.98
Temporal Extent
1978-10-26T00:00:00.000Z
point of contact - principalInvestigator
individual Name Florence Fetterer
organisation Name  National Snow and Ice Data Center
Contact information
Address
, Boulder, CO,  Country USA
electronic Mail Address fetterer@nsidc.org
Linkage for online resource
name 
URL: http://nsidc.org
Description 
point of contact - principalInvestigator
individual Name Kenneth Knowles
organisation Name  Operational Systems, Inc.
Contact information
Address
National Snow and Ice Data CenterCIRES, 449 UCBUniversity of Colorado, Boulder, CO, 80309-0449 Country USA
Linkage for online resource
name 
URL: http://nsidc.org
Description 
point of contact - principalInvestigator
individual Name Walt Meier
organisation Name  National Snow and Ice Data Center
Contact information
Address
, Boudler, CO, 80309 Country USA
electronic Mail Address walt@nsidc.org
Linkage for online resource
name 
URL: http://nsidc.org
Description 
point of contact - principalInvestigator
individual Name Matthew Savoie
organisation Name  National Snow and Ice Data Center
Contact information
Address
CIRES, 449 UCBUniversity of Colorado, Boulder, CO, 80309-0449 Country USA
electronic Mail Address savoie@nsidc.org
Linkage for online resource
name 
URL: http://nsidc.org
Description 
point of contact - principalInvestigator
individual Name Ann Kathryn Windnagel
organisation Name  National Snow and Ice Data Center
Contact information
Address
, , ,  Country 
Linkage for online resource
name 
URL: http://nsidc.org
Description 
point of contact - pointOfContact
individual Name NSIDC User Services
organisation Name  National Snow and Ice Data Center
Contact information
Telephone
Voice 1 303 492 6199
Fax 1 303 492 2468
Address
CIRES, 449 UCBUniversity of Colorado, Boulder, CO, 80309-0449 Country USA
electronic Mail Address nsidc@nsidc.org
Linkage for online resource
name 
URL: http://nsidc.org
Description 
point of contact - custodian
individual Name NSIDC User Services
organisation Name  National Snow and Ice Data Center
Contact information
Telephone
Voice 1 303 492 6199
Fax 1 303 492 2468
Address
National Snow and Ice Data CenterCIRES, 449 UCBUniversity of Colorado, Boulder, CO, 80309-0449 Country USA
electronic Mail Address nsidc@nsidc.org
Linkage for online resource
name 
URL: http://nsidc.org
Description 
point of contact - distributor
individual Name NSIDC User Services
organisation Name  National Snow and Ice Data Center
Contact information
Telephone
Voice 1 303 492 6199
Fax 1 303 492 2468
Address
National Snow and Ice Data CenterCIRES, 449 UCBUniversity of Colorado, Boulder, CO, 80309-0449 Country USA
electronic Mail Address nsidc@nsidc.org
Linkage for online resource
name 
URL: http://nsidc.org
Description 
point of contact - processor
organisation Name  NOAA
Contact information
Linkage for online resource
name 
URL: http://nsidc.org/noaa/
Description 
point of contact - originator
organisation Name  NOAA
Contact information
Linkage for online resource
name 
URL: http://nsidc.org/noaa/
Description 
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Reference system information

Reference System Identifier
Identifier string: CARTESIAN
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Scope of quality information
scope level  series
Resource lineage description

Resource distribution information

Distributor
distributor contact - distributor
individual Name NSIDC User Services
organisation Name  National Snow and Ice Data Center
Contact information
Telephone
Voice 1 303 492 6199
Fax 1 303 492 2468
Address
National Snow and Ice Data CenterCIRES, 449 UCBUniversity of Colorado, Boulder, CO, 80309-0449 Country USA
electronic Mail Address nsidc@nsidc.org
Linkage for online resource
name 
URL: http://nsidc.org
Description 
Digital Transfer Options
Format
Format name PNG
Format version 
specification > FTP 0.046 - 1.6 MB
Format
Format name ESRI Shapefile
Format version 
specification > FTP 9 - 90 KB
Format
Format name ASCII Text
Format version 
specification > FTP 2 - 34 KB
Format
Format name GeoTIFF
Format version 
specification > FTP 136 - 651 KB

Description of extensions to base metadata standard

ExtendedElementInformation
Elementname Metadata Create Date
definition Create Date
dataType  Date
domainValue 2016-07-19
parentEntity 
rule 
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Description of extensions to base metadata standard

ExtendedElementInformation
Elementname Metadata Update Date
definition Update Date
dataType  Date
domainValue 2017-10-26
parentEntity 
rule 
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Metadata data stamp:  2017-10-26
Metadata contact - custodian
individual Name NSIDC User Services
organisation Name  National Snow and Ice Data Center
Contact information
Telephone
Voice 1 303 492 6199
Fax 1 303 492 2468
Address
National Snow and Ice Data CenterCIRES, 449 UCBUniversity of Colorado, Boulder, CO, 80309-0449 Country USA
electronic Mail Address nsidc@nsidc.org
Linkage for online resource
name 
URL: http://nsidc.org
Description 
Metadata scope code  series
Metadata hierarchy level name:  Sea Ice Index
Metadata language  eng; usa
Metadata character set encoding:   UTF8
Metadata standard for this record:  ISO 19115-2 Geographic Information 2009 Metadata
standard version:  ISO 19115-2:2009
Metadata record identifier:  Sea Ice Index, Version 2

Metadata record format is ISO19139-2 XML (MI_Metadata)