Sea Ice Index  View Catalog Page
Metadata Entity Set Information:
Language:
eng; usa
Character Set:
Value: UTF8
CodeList: MD_CharacterSetCode
Hierarchy Level:
Value: dataset
CodeList: MD_ScopeCode
Hierarchy Level Name:
Sea Ice Index
Contact:
Responsible Party:
Individual Name: NSIDC User Services
Organization Name: National Snow and Ice Data Center
Contact:
Contact Phone:
Contact Voice Telephone: 1 303 492-6199 x
Contact Address:
Delivery Point: CIRES, 449 UCB
City: Boulder
Administrative Area: CO
Postal Code: 80309-0449
Country: USA
Email: nsidc@nsidc.org
Contact Online Resources:
Website: http://nsidc.org
Contact Role:
Value: pointOfContact
CodeList: CI_RoleCode
Date Stamp:
2013-05-06
Metadata Standard Name:
ISO 19115 Geographic Information - Metadata First Edition
Metadata Standard Version:
ISO 19115:2003
Dataset URI:
http://nsidc.org/data/g02135.html
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Data Identification Information:
Citation:
Citation Information:
Title: Sea Ice Index
Date:
Date: 2002
Date Type:
Value: publication
CodeList: CI_DateTypeCode
Edition Date: 2002-12-05
Identifier: G02135
Identifier: http://dx.doi.org/10.7265/N5QJ7F7W
Cited Responsible Party: Responsible Party:
Individual Name: NSIDC User Services
Organization Name: National Snow and Ice Data Center
Contact:
Contact Phone:
Contact Voice Telephone: 1 303 492-6199
Contact Address:
Delivery Point: National Snow and Ice Data Center
City: Boulder
Administrative Area: CO
Postal Code: 80309-0449
Country: USA
Email: nsidc@nsidc.org
Contact Online Resources:
Website: http://nsidc.org
Contact Role:
Value: custodian
CodeList: CI_RoleCode
Responsible Party:
Individual Name: NSIDC NOAA User Services
Organization Name: NSIDC National Oceanic and Atmospheric Administration
Contact:
Contact Phone:
Contact Voice Telephone: 1 303 492-6199
Contact Address:
Delivery Point: National Snow and Ice Data Center
City: Boulder
Administrative Area: CO
Postal Code: 80309-0449
Country: USA
Email: nsidc@nsidc.org
Contact Online Resources:
Website: http://nsidc.org/noaa/
Contact Role:
Value: custodian
CodeList: CI_RoleCode
Abstract:
The Sea Ice Index provides a quick look at sea ice changes in spatial and historical context, and gives a consistent, up-to-date source of sea ice extent and sea ice concentration values and images. The NSIDC Near-Real-Time DMSP SSM/I Daily Polar Gridded Sea Ice Concentrations and the Sea Ice Concentrations from Nimbus-7 SSMR and DMSP SSM/I Passive Microwave Data data sets are used to generate the monthly records of sea ice extent and sea ice concentration for the Arctic and Antarctica from satellite passive microwave data.
Data files tabulate monthly mean extent and area, in millions of square kilometers, by year for a given month. Plots of monthly sea ice extent anomalies with trend lines and significance intervals are available. Monthly images show sea ice extent (with an outline of the median extent for that month for comparison), sea ice concentration, trends in sea ice concentration, and anomalies in sea ice concentration. Anomalies and median extent are calculated using a reference period of 1979 through 2000.
Daily images of sea ice extent and concentration, along with a time series plot of extent for the most recent four months, can be viewed and downloaded on the data product site but are not archived. Some products are available as GIS compatible shapefiles and KML files. The Browse Image Spreadsheet Tool (BIST) can be used for animated images and for displaying archived images of extent and trends side by side, to make it easy to compare images from different years and months.
Data are stored in ASCII text, Portable Network Graphics (PNG), Keyhole Markup Language (KML), and Geospatial Vector Data format and are available from November 1978 to present via FTP or the Sea Ice Index Web site.
Purpose:
Scientific Research
Credit:
The following example shows how to cite the use of this data set in a publication. For more information, see our Use and Copyright Web page.
Fetterer, F., K. Knowles, W. Meier, and M. Savoie. 2002, updated 2009. Sea Ice Index. [indicate subset used]. Boulder, Colorado USA: National Snow and Ice Data Center. http://dx.doi.org/10.7265/N5QJ7F7W.
Status:
Value: underDevelopment
CodeList: MD_ProgressCode
Point of Contact:
Responsible Party:
Individual Name: F. Fetterer
Organization Name: CIRES
Contact:
Contact Address:
Delivery Point: 449 UCB
City: Boulder
Administrative Area: CO
Postal Code: 80309
Country: USA
Email: fetterer@nsidc.org
Contact Role:
Value: principalInvestigator
CodeList: CI_RoleCode
Responsible Party:
Individual Name: Kenneth Knowles
Organization Name: National Snow and Ice Data Center
Contact:
Contact Address:
Delivery Point: National Snow and Ice Data Center
City: Boulder
Administrative Area: CO
Postal Code: 80309-0449
Country: USA
Contact Role:
Value: principalInvestigator
CodeList: CI_RoleCode
Responsible Party:
Individual Name: Walt Meier
Organization Name: CIRES
Contact:
Contact Address:
Delivery Point: 449 UCB
City: Boulder
Administrative Area: CO
Postal Code: 80309
Country: USA
Email: walt@nsidc.org
Contact Role:
Value: principalInvestigator
CodeList: CI_RoleCode
Responsible Party:
Individual Name: Matthew Savoie
Organization Name: National Snow and Ice Data Center
Contact:
Contact Address:
Delivery Point: CIRES, 449 UCB
City: Boulder
Administrative Area: CO
Postal Code: 80309-0449
Country: USA
Email: savoie@nsidc.org
Contact Role:
Value: principalInvestigator
CodeList: CI_RoleCode
Responsible Party:
Individual Name: NSIDC User Services
Organization Name: National Snow and Ice Data Center
Contact:
Contact Phone:
Contact Voice Telephone: 1 303 492-6199 x
Contact Address:
Delivery Point: CIRES, 449 UCB
City: Boulder
Administrative Area: CO
Postal Code: 80309-0449
Country: USA
Email: nsidc@nsidc.org
Contact Role:
Value: pointOfContact
CodeList: CI_RoleCode
Maintenance Information:
Maintenance and Update Frequency:
Value: asNeeded
CodeList: MD_MaintenanceFrequencyCode
Update Scope:
Value: dataset
CodeList: MD_ScopeCode
Value: series
CodeList: MD_ScopeCode
Value: attribute
CodeList: MD_ScopeCode
Contact:
Responsible Party:
Individual Name: NSIDC User Services
Organization Name: National Snow and Ice Data Center
Contact:
Contact Phone:
Contact Voice Telephone: 1 303 492-6199 x
Contact Address:
Delivery Point: CIRES, 449 UCB
City: Boulder
Administrative Area: CO
Postal Code: 80309-0449
Country: USA
Email: nsidc@nsidc.org
Contact Online Resources:
Website: http://nsidc.org
Contact Role:
Value: pointOfContact
CodeList: CI_RoleCode
Descriptive Keywords:
Keywords
Keyword: Continent > Antarctica
Keyword: Geographic Region > Arctic
Keyword Type:
Value: place
CodeList: MD_KeywordTypeCode
Keyword Thesaurus: Citation Information:
Title: NASA / GCMD Location Keywords
Date:
Date: 2008-02-05
Date Type:
Value: revision
CodeList: CI_DateTypeCode
Keywords
Keyword: EARTH SCIENCE > Cryosphere > Sea Ice > Ice Extent
Keyword: EARTH SCIENCE > Cryosphere > Sea Ice > Ice Growth/Melt
Keyword: EARTH SCIENCE > Cryosphere > Sea Ice > Reflectance
Keyword: EARTH SCIENCE > Cryosphere > Sea Ice > Sea Ice Concentration
Keyword: EARTH SCIENCE > Oceans > Sea Ice > Ice Extent
Keyword: EARTH SCIENCE > Oceans > Sea Ice > Ice Growth/Melt
Keyword: EARTH SCIENCE > Oceans > Sea Ice > Reflectance
Keyword: EARTH SCIENCE > Oceans > Sea Ice > Sea Ice Concentration
Keyword Type:
Value: discipline
CodeList: MD_KeywordTypeCode
Keyword Thesaurus: Citation Information:
Title: NASA / GCMD Science Keywords
Date:
Date: 2008-02-05
Date Type:
Value: revision
CodeList: CI_DateTypeCode
Keywords
Keyword Type:
Value: theme
CodeList: MD_KeywordTypeCode
Keyword Thesaurus: Citation Information:
Title: None
Date:
Date: 2008-01-24
Date Type:
Value: revision
CodeList: CI_DateTypeCode
Keywords
Keyword: NOAA
Keyword: Sea Ice
Keyword: Sea Ice Anomalies
Keyword: Sea Ice Conditions
Keyword: Sea Ice Trends
Keyword Type:
Value: theme
CodeList: MD_KeywordTypeCode
Dataset Constraints:
Legal Constraints:
Access Constraints:
Value: otherRestrictions
CodeList: MD_RestrictionCode
Use Constraints:
Value: otherRestrictions
CodeList: MD_RestrictionCode
Other Constraints:
Access Constraints : none
Use Constraints : none
Language:
eng; usa
Character Set:
Value: UTF8
CodeList: MD_CharacterSetCode
Topic Category:
Value: climatologyMeteorologyAtmosphere
CodeList: MD_topicCategoryCode
Topic Category:
Value: oceans
CodeList: MD_topicCategoryCode
Extent Information:
Spatial Temporal Extent:
Geographic Element:
Bounding Coordinates:
Westbound Longitude: -180
Eastbound Longitude: 180
Southbound Latitude: -90
Northbound Latitude: 90
Temporal Element:
Time Period:
Begin Position: 19790101
End Position: Unknown
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Distribution Information:
Distributor Information:
Distributor Contact:
Responsible Party:
Individual Name: NSIDC User Services
Organization Name: National Snow and Ice Data Center
Contact:
Contact Phone:
Contact Voice Telephone: 1 303 492-6199
Contact Address:
Delivery Point: National Snow and Ice Data Center
City: Boulder
Administrative Area: CO
Postal Code: 80309-0449
Country: USA
Email: nsidc@nsidc.org
Contact Online Resources:
Website: http://nsidc.org
Contact Role:
Value: custodian
CodeList: CI_RoleCode
Responsible Party:
Individual Name: NSIDC NOAA User Services
Organization Name: NSIDC National Oceanic and Atmospheric Administration
Contact:
Contact Phone:
Contact Voice Telephone: 1 303 492-6199
Contact Address:
Delivery Point: National Snow and Ice Data Center
City: Boulder
Administrative Area: CO
Postal Code: 80309-0449
Country: USA
Email: nsidc@nsidc.org
Contact Online Resources:
Website: http://nsidc.org/noaa/
Contact Role:
Value: custodian
CodeList: CI_RoleCode
Distribution Format(s):
Data File Format:
Name: ASCII Text
Specification: FTP
Data File Format:
Name: ESRI Shapefiles
Specification: FTP
Data File Format:
Name: PNG
Specification: FTP
Digital Transfer Options:
Online Transfer Options:
Online Resources:
Linkage: ftp://sidads.colorado.edu/DATASETS/NOAA/G02135/
Description: Data Access URL
Function:
Value: download
CodeList: CI_OnLineFunctionCode
Linkage: http://nsidc.org/data/docs/noaa/g02135_seaice_index/index.html
Description: Documentation URL
Function:
Value: information
CodeList: CI_OnLineFunctionCode
Linkage: http://nsidc.org/data/seaice_index/
Description: Product Site URL
Function:
Value: information
CodeList: CI_OnLineFunctionCode
Offline Transfer Options:
Offline Resources:
Name:
Value: onLine
CodeList: MD_MediumNameCode
Medium Name: FTP
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Data Acquisition Information:
Instrument Information:
Instrument:
Name: SMMR > Scanning Multichannel Microwave Radiometer
Type: sensor
Instrument:
Name: SSM/I > Special Sensor Microwave/Imager
Type: sensor
Platform Information:
Platform:
Name: DMSP > Defense Meteorological Satellite Program
Description: satellite
Instrument: N/A
Platform:
Name: NIMBUS-7
Description: satellite
Instrument: N/A
Platform:
Name: SATELLITES
Description: satellite
Instrument: N/A
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