Sea Ice Yearly Minimum with Graph Overlay 1979-2010

Federal Geographic Data Committee (FGDC) Metadata:


Identification_Information:
Citation:
Citation_Information:
Originator: Lori Perkins, Greg Shirah, Cindy Starr and Josefino Comiso
Publication_Date: 20101104
Title: Sea Ice Yearly Minimum with Graph Overlay 1979-2010
Edition:
Geospatial_Data_Presentation_Form:
Series_Information:
Series_Name:
Issue_Identification:
Publication_Information:
Publication_Place: GSFC
Publisher: SVS
Other_Citation_Details:
Online_Linkage: http://svs.gsfc.nasa.gov/vis/a000000/a003800/a003802/index.html
Description:
Abstract:
Sea Ice Yearly Minimum 1979-2010 (SSMI data) The continued significant reduction in the extent of the summer sea ice cover is a dramatic illustration of the pronounced impact increased global temperatures are having on the Arctic regions. There has also been a significant reduction in the relative amount of older, thicker ice. Satellite-based passive microwave images of the sea ice cover have provided a reliable tool for continuously monitoring changes in the extent of the Arctic ice cover since 1979. The ice parameters derived from satellite ice concentration data that are most relevant to climate change studies are sea ice extent and ice area. This visualization shows ice extent in the background and ice area in the foreground. Ice extent is defined here as the integrated sum of the areas of data elements (pixels) with at least 15% ice concentration while ice area is the integrated sum of the products of the area of each pixel and the corresponding ice concentration. Ice extent provides information about how far south (or north) the ice extends in winter and how far north (or south) it retreats toward the continent in the summer while the ice area provides the total area actually covered by sea ice which is useful for estimating the total volume and therefore mass, given the average ice thickness. For more information about these ice datasets, see The Journal of Geophysical Research VOL. 113, C02S07, doi:10.1029/2007JC004257, 2008 In 2007, Arctic summer sea ice reached its lowest extent on record - nearly 25% less than the previous low set in 2005. At the end of each summer, the sea ice cover reaches its minimum extent and what is left is what is called the perennial ice cover which consists mainly of thick multi-year ice flows. The area of the perennial ice has been steadily decreasing since the satellite record began in 1979, at a rate of about 10% per decade. This visualization shows the annual Arctic sea ice minimum from 1979 to 2010. A graph is overlaid that shows the area in million square kilometers for each year's minimum day. The '1979','2007', and '2010' data points are highlighted on the graph. Credit: NASA/Goddard Space Flight Center Scientific Visualization Studio and Rob Gerston (GSFC) for providing the data.
Purpose:
Not Available
Supplemental_Information:
REFERENCE: Comiso, J. C., C. L. Parkinson, R. Gersten, and L. Stock, 2008: Accelerated decline in the Arctic sea ice cover. Geophys. Res. Lett., 35, L01703, doi:10.1029/2007GL031972. http://www.met.sjsu.edu/~wittaya/Acrtic%20Sea%20Ice/2007GL031972.pdf Comiso, J. C., C. L. Parkinson, R. Gersten, and L. Stock 2008 Accelerated decline in the Arctic sea ice cover. 35 GEOPHYSICAL RESEARCH LETTERS doi:10.1029/2007GL031972 http://www.met.sjsu.edu/~wittaya/Acrtic%20Sea%20Ice/2007GL031972.pdf
Time_Period_of_Content:
Time_Period_Information:
Range_of_Dates/Times:
Beginning_Date: 19790101
Ending_Date: 20101104
Currentness_Reference:Unknown
Status:
Progress: Complete
Maintenance_and_Update_Frequency: As needed
Spatial_Domain:
Description_of_Geographic_Extent:
Bounding_Coordinates:
West_Bounding_Coordinate: -180.0
East_Bounding_Coordinate: 180.0
North_Bounding_Coordinate: 90.0
South_Bounding_Coordinate: 55.0
Keywords:
Theme:
Theme_Keyword_Thesaurus: GCMD SCIENCE PARAMETERS
Theme_Keyword_Thesaurus: GCMD PLATFORM
Theme_Keyword_Thesaurus: GCMD INSTRUMENT
Theme_Keyword_Thesaurus: ANCILLARY KEYWORDS
Theme_Keyword_Thesaurus: ISO TOPIC CATEGORY
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 > ICEBERGS
Theme_Keyword: EARTH SCIENCE > CRYOSPHERE > SEA ICE > SEA ICE CONCENTRATION
Theme_Keyword: EARTH SCIENCE > CRYOSPHERE > SEA ICE
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 > ICEBERGS
Theme_Keyword: EARTH SCIENCE > OCEANS > SEA ICE
Theme_Keyword: EARTH SCIENCE > OCEANS > SEA ICE > SEA ICE CONCENTRATION
Theme_Keyword: EARTH SCIENCE > CRYOSPHERE > SEA ICE > SNOW MELT
Theme_Keyword: EARTH SCIENCE > OCEANS > SEA ICE > SNOW MELT
Theme_Keyword: DMSP > DEFENSE METEOROLOGICAL SATELLITE PROGRAM
Theme_Keyword: AQUA > EARTH OBSERVING SYSTEM, AQUA
Theme_Keyword: SMMR > SCANNING MULTICHANNEL MICROWAVE RADIOMETER
Theme_Keyword: SSMI > SPECIAL SENSOR MICROWAVE/IMAGER
Theme_Keyword: AMSR-E > ADVANCED MICROWAVE SCANNING RADIOMETER-EOS
Theme_Keyword: Climate Diagnostics
Theme_Keyword: Nasa Code 610
Theme_Keyword: OCEANS
Place:
Place_Keyword_Thesaurus: GCMD
Place_Keyword: OCEAN > ARCTIC OCEAN
Place_Keyword: OCEAN > ATLANTIC OCEAN > NORTH ATLANTIC OCEAN > NORTH SEA
Place_Keyword: GEOGRAPHIC REGION > ARCTIC
Place_Keyword: GEOGRAPHIC REGION > POLAR
Access_Constraints: Not Available
Use_Constraints:
Not Available
Point_of_Contact:
Contact_Information:
Contact_Person_Primary:
Contact_Person: JOSEFINO (JOEY) C. COMISO
Contact_Position: INVESTIGATOR
Contact_Address:
Address_Type: Mailing and Physical Address
Address: Laboratory for Hydrospheric Processes
Address: Cryospheric Sciences Branch
Address: NASA/Goddard Space Flight Center
Address: Code 614
City: Greenbelt
State_or_Province: MD
Postal_Code: 20771
Country: USA
Contact_Voice_Telephone: 301 614-5708
Contact_Electronic_Mail_Address: josefino.c.comiso@nasa.gov
Browse_Graphic:
Browse_Graphic_File_Name: http://svs.gsfc.nasa.gov/vis/a000000/a003800/a003802/LabelsYellow.2049_web.png
Browse_Graphic_File_Description:
QuickTime, MS Player
Browse_Graphic_File_Type: MPEG
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Data_Quality_Information:
Attribute_Accuracy:
Attribute_Accuracy_Report:
Not Available
Logical_Consistency_Report:
Not Available
Completeness_Report:
Not Available
Lineage:
Process_Step:
Process_Description:
Not Available
Process_Date: Unknown
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Spatial_Reference_Information:
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Distribution_Information:
Distributor:
Contact_Information:
Contact_Organization_Primary:
Contact_Organization: NASA/GSFC/SVS > Scientific Visualization Studio, Goddard Space Flight Center, NASA
Contact_Person: LORI PERKINS
Contact_Position: DATA CENTER CONTACT
Contact_Address:
Address_Type: Mailing and Physical Address
Address: GSFC, Code 610.3
City: Greenbelt
State_or_Province: MD
Postal_Code: 20771
Country: USA
Contact_Electronic_Mail_Address: lori.k.perkins@nasa.gov
Resource_Description: SVS-CSB_SeaIceYearlyMinimum1979-2008
Distribution_Liability:
Not Available
Standard_Order_Process:
Digital_Form:
Digital_Transfer_Information:
Format_Name: Not Available
Digital_Transfer_Option:
Online_Option:
Computer_Contact_Information:
Network_Address:
Network_Resource_Name:
http://svs.gsfc.nasa.gov/index.html
Access_Instructions:
DATA CENTER URL
Digital_Transfer_Option:
Online_Option:
Computer_Contact_Information:
Network_Address:
Network_Resource_Name:
http://gcmd.nasa.gov/getdif.htm?NSIDC-0051
Access_Instructions:
Sea Ice Concentrations from Nimbus-7 SMMR and DMSP SSM/I Passive Microwave Data - GCMD DIF
Digital_Transfer_Option:
Online_Option:
Computer_Contact_Information:
Network_Address:
Network_Resource_Name:
http://gcmd.nasa.gov/getdif.htm?AE_SI25
Access_Instructions:
AMSR-E/Aqua Daily L3 25 km Brightness Temperature & Sea Ice Concentration Polar Grids - GCMD DIF
Fees: Not Available
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Metadata_Reference_Information:
Metadata_Date: 20100114
Metadata_Review_Date: 20120125
Metadata_Contact:
Contact_Information:
Contact_Person_Primary:
Contact_Person: GCMD User Support Office
Contact_Organization: NASA Global Change Master Directory
Contact_Address:
Address_Type: Mailing and Physical Address
Address: Not Available
City: Lanham
State_or_Province: MD
Postal_Code: 20706
Country: USA
Contact_Voice_Telephone: Not Available
Contact_Electronic_Mail_Address: gcmduso@gcmd.gsfc.nasa.gov
Metadata_Standard_Name: FGDC Content Standards for Digital Geospatial Metadata
Metadata_Standard_Version: FGDC-STD-001-1998
Metadata_Time_Convention: local time
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