Sea Ice Index  View Catalog Page
Identification Information:
Dataset Identifier:
G02135
Citation:
Citation Information:
Originator: Fetterer, F., K. Knowles, W. Meier, and M. Savoie.
Publication Date: 20021205
Title: Sea Ice Index
Publication Information:
Publication Place: Boulder, Colorado USA
Publisher: NSIDC: National Snow and Ice Data Center
Online Linkage: http://nsidc.org/data/g02135.html
Online Linkage: http://dx.doi.org/10.7265/N5QJ7F7W
Description:
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
Documentation:
User's Guide:
Citation Information:
Originator: Fetterer, F., K. Knowles, W. Meier, and M. Savoie.
Publication Date: 20021205
Title: Sea Ice Index
Publication Information:
Publication Place: Boulder, Colorado USA
Publisher: NSIDC: National Snow and Ice Data Center
Online Linkage: http://nsidc.org/data/docs/noaa/g02135_seaice_index/index.html
Time Period of Content:
Time Period Information:
Range of Dates/Times:
Beginning Date: 19790101
Ending Date: Unknown
Currentness Reference: publication date
Status:
Progress: In work
Maintenance and Update Frequency: Unknown
Spatial Domain:
Bounding Coordinates:
West Bounding Coordinate: -180°
East Bounding Coordinate: 180°
North Bounding Coordinate: 90°
South Bounding Coordinate: -90°
Keywords:
Theme:
Theme Keyword Thesaurus: NASA Global Change Master Directory (GCMD) Science Keywords
Theme Keyword: EARTH SCIENCE Cryosphere Sea Ice Ice Extent
Theme Keyword: EARTH SCIENCE Cryosphere Sea Ice Ice Growth/Melt
Theme Keyword: EARTH SCIENCE Cryosphere Sea Ice Reflectance
Theme Keyword: EARTH SCIENCE Cryosphere Sea Ice Sea Ice Concentration
Theme Keyword: EARTH SCIENCE Oceans Sea Ice Ice Extent
Theme Keyword: EARTH SCIENCE Oceans Sea Ice Ice Growth/Melt
Theme Keyword: EARTH SCIENCE Oceans Sea Ice Reflectance
Theme Keyword: EARTH SCIENCE Oceans Sea Ice Sea Ice Concentration
Theme:
Theme Keyword Thesaurus: None
Theme Keyword:
Theme:
Theme Keyword Thesaurus: NASA Global Change Master Directory (GCMD) Instrument Keywords
Theme Keyword: SMMR Scanning Multichannel Microwave Radiometer
Theme Keyword: SSM/I Special Sensor Microwave/Imager
Theme:
Theme Keyword Thesaurus: NASA Global Change Master Directory (GCMD) Platform Keywords
Theme Keyword: DMSP Defense Meteorological Satellite Program
Theme Keyword: NIMBUS-7
Theme Keyword: SATELLITES
Theme:
Theme Keyword Thesaurus: ISO 19115 Topic Categories
Theme Keyword: climatologyMeteorologyAtmosphere
Theme Keyword: oceans
Theme:
Theme Keyword Thesaurus: None
Theme Keyword: NOAA
Theme Keyword: Sea Ice
Theme Keyword: Sea Ice Anomalies
Theme Keyword: Sea Ice Conditions
Theme Keyword: Sea Ice Trends
Place:
Place Keyword Thesaurus: NASA Global Change Master Directory (GCMD) Location Keywords
Place Keyword: Continent Antarctica
Place Keyword: Geographic Region Arctic
Access Constraints:
None
Use Constraints:
None
Point of Contact:
Contact Information:
Contact Person Primary:
Contact Person: NSIDC User Services
Contact Organization: National Snow and Ice Data Center
Contact Address:
Address Type: mailing
Address:
- CIRES, 449 UCB
- University of Colorado
City: Boulder
State or Province: CO
Postal Code: 80309-0449
Country: USA
Contact Voice Telephone: 1 303 492-6199 x
Contact Facsimile Telephone: 1 303 492-2468 x
Contact Electronic Mail Address: nsidc@nsidc.org
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Distribution Information:
Distributor:
Contact Information:
Contact Organization Primary:
Contact Organization: National Snow and Ice Data Center
Contact Person: NSIDC User Services
Contact Address:
Address Type: mailing
Address:
- National Snow and Ice Data Center
- CIRES, 449 UCB
- University of Colorado
City: Boulder
State or Province: CO
Postal Code: 80309-0449
Country: USA
Contact Voice Telephone: 1 303 492-6199
Contact Facsimile Telephone: 1 303 492-2468
Contact Electronic Mail Address: nsidc@nsidc.org
Resource Description:
G02135
Distribution Liability:
NSIDC cannot assume liability for any damages caused by any errors or omissions in the data, nor as a result of the failure of the data to function on a particular system. NSIDC makes no warranty, expressed or implied, nor does the fact of distribution constitute such a warranty.
Standard Order Process:
Digital Form:
Digital Transfer Information:
Format Name: ASCII Text
Digital Transfer Option:
Online Option:
Computer Contact Information:
Network Address:
Network Resource Name: Click here.
Fees: None
Standard Order Process:
Digital Form:
Digital Transfer Information:
Format Name: ESRI Shapefiles
Digital Transfer Option:
Online Option:
Computer Contact Information:
Network Address:
Network Resource Name: Click here.
Fees: None
Standard Order Process:
Digital Form:
Digital Transfer Information:
Format Name: PNG
Digital Transfer Option:
Online Option:
Computer Contact Information:
Network Address:
Network Resource Name: Click here.
Fees: None
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Metadata Reference Information:
Metadata Date:
20130307
Metadata Review Date:
20130307
Metadata Contact:
Contact Information:
Contact Person Primary:
Contact Person: NSIDC User Services
Contact Organization: National Snow and Ice Data Center
Contact Address:
Address Type: mailing
Address:
- National Snow and Ice Data Center
- CIRES, 449 UCB
- University of Colorado
City: Boulder
State or Province: CO
Postal Code: 80309-0449
Country: USA
Contact Voice Telephone: 1 303 492-6199
Contact Facsimile Telephone: 1 303 492-2468
Contact Electronic Mail Address: nsidc@nsidc.org
Metadata Standard Name:
FGDC Content Standard for Digital Geospatial Metadata:
Extensions for Remote Sensing Metadata
Metadata Standard Version:
FGDC-STD-012-2002
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