Sea Ice Index

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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:

2014-11-24

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: NOAA User Services
Organization Name: National Oceanic and Atmospheric Administration
Contact:

Contact Phone:

Contact Voice Telephone: 1 303 492-6199 x

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 Arctic- and Antarctic-wide changes in sea ice. It is a source for consistent, up-to-date sea ice extent and concentration images and data values from November 1978 to the present. Sea Ice Index images depict ice cover and trends in ice cover in the Arctic and Antarctic oceans. Sea Ice Index data files tabulate ice extent in numbers. 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. Monthly images show sea ice extent with an outline of the median extent for that month for comparison. Other monthly images show sea ice concentration as well as trends in concentration for that month. Monthly extent products are also available as geographic information systems (GIS) compatible shapefiles. Plain ASCII text data files contain monthly mean extent and area, in millions of square kilometers, by year. These monthly extent numbers are used for graphs of extent anomalies with trend lines and significance intervals. Anomalies and median extent are calculated using a 30-year reference period of 1981 through 2010. Daily images show sea ice extent, with an outline of the median extent for that day for comparison, and sea ice concentration. Plain ASCII text data files contain daily extent, in millions of square kilometers, for almost every day from 1978 onward. These daily extent numbers are used for graphs of daily extent over the last four months.

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 daily. 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: Operational Systems, Inc.
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: NASA Goddard Space Flight Center
Contact:

Contact Address:

City: Greenbelt
Administrative Area: MD
Postal Code: 20771
Country: USA
Email: walter.n.meier@nasa.gov

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: NOAA User Services
Organization Name: National Oceanic and Atmospheric Administration
Contact:

Contact Phone:

Contact Voice Telephone: 1 303 492-6199 x

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: PNG
Specification: FTP

Data File Format:

Name: ESRI Shapefiles (.shp, .shx, .dbf, and .prj)
Specification: FTP

Data File Format:

Name: ASCII Text (.txt)
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

Instrument:

Name: SSMIS > Special Sensor Microwave Imager/Sounder
Type: sensor

Platform Information:

Platform:

Name: DMSP > Defense Meteorological Satellite Program
Description: satellite
Instrument: N/A

Platform:

Name: DMSP 5D-3/F17 > Defense Meteorological Satellite Program-F17
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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Metadata Views

ISO Text-Only

International Organization for Standardization (ISO) in plain text

ISO XML

International Organization for Standardization (ISO) in Extensible Markup Language (XML)

DIF HTML

NASA Global Change Master Directory (GCMD) Directory Interchange Format (DIF)

FGDC HTML

U.S. Federal Geographic Data Committee (FGDC) Content Standard for Digital Geospatial Metadata (CSDGM)