Entry_ID: MOD29E1D
Entry_Title: MODIS/Terra Sea Ice Extent and IST Daily L3 Global 4km EASE-Grid Day
Group: Data_Set_Citation
   Dataset_Creator: Hall, D. K., V. V. Salomonson, and G. A. Riggs. 
   Dataset_Title: MODIS/Terra Sea Ice Extent and IST Daily L3 Global 4km EASE-Grid Day
   Dataset_Release_Date: 2006-12-18
   Dataset_Release_Place: Boulder, Colorado USA
   Dataset_Publisher: NSIDC: National Snow and Ice Data Center
   Version: 5
   Online_Resource: http://nsidc.org/data/mod29e1d.html
End_Group
Group: Personnel
   Role: Investigator
   First_Name: Dorothy
   Middle_Name: K.
   Last_Name: Hall
   Group: Contact_Address
      Address: NASA Goddard Space Flight Center (GSFC)
      Address: National Aeronautics and Space Administration (NASA) Goddard Space Flight Center (GSFC)
      Address: Mail stop 614.1
      City: Greenbelt
      Province_or_State: MD
      Postal_Code: 20771
   End_Group
End_Group
Group: Personnel
   Role: Investigator
   First_Name: Vince
   Middle_Name: V.
   Last_Name: Salomonson
   Email: vincent.salomonson@utah.edu
   Phone: 1 801 585-9492 
   Group: Contact_Address
      Address: University of Utah
      Address: Department of Meteorology
      Address: University of Utah
      Address: Department of Meteorology
      Address: 135 S 1460 E, Rm 809
      City: Salt Lake City
      Province_or_State: UT
      Postal_Code: 84112
      Country: US
   End_Group
End_Group
Group: Personnel
   Role: Investigator
   First_Name: George
   Middle_Name: A.
   Last_Name: Riggs
   Email: George.A.Riggs@nasa.gov
   Phone: 1 301 614-5650 
   Group: Contact_Address
      Address: NASA Goddard Space Flight Center (GSFC)
      Address: Science Systems and Applications, Inc.
      Address: NASA Goddard Space Flight Center (GSFC)
      Address: Science Systems and Applications, Inc.
      Address: Code 614.1
      City: Greenbelt
      Province_or_State: MD
      Postal_Code: 20771
      Country: USA
   End_Group
End_Group
Group: Personnel
   Role: Technical Contact
   First_Name: NSIDC
   Last_Name: User Services
   Email: nsidc@nsidc.org
   Phone: 1 303 492-6199 x
   Fax: 1 303  492-2468 x
   Group: Contact_Address
      Address: National Snow and Ice Data Center
      Address: CIRES, 449 UCB
      Address: University of Colorado
      City: Boulder
      Province_or_State: CO
      Postal_Code: 80309-0449
      Country: USA
   End_Group
End_Group
Group: Parameters
   Category: EARTH SCIENCE
   Topic: Cryosphere
   Term: Sea Ice
   Variable_Level_1: Ice Extent
End_Group
Group: Parameters
   Category: EARTH SCIENCE
   Topic: Cryosphere
   Term: Sea Ice
   Variable_Level_1: Ice Temperature
End_Group
Group: Parameters
   Category: EARTH SCIENCE
   Topic: Oceans
   Term: Sea Ice
   Variable_Level_1: Ice Extent
End_Group
Group: Parameters
   Category: EARTH SCIENCE
   Topic: Oceans
   Term: Sea Ice
   Variable_Level_1: Ice Temperature
End_Group
ISO_Topic_Category: Imagery/Base Maps/Earth Cover
Keyword: Antarctic
Keyword: Arctic
Keyword: DAAC
Keyword: EASE-Grid
Keyword: ECS
Keyword: EOSDIS
Keyword: Global Change
Keyword: Gridded
Keyword: Ice Extent
Keyword: Ice Surface Temperature
Keyword: IST
Keyword: NASA
Keyword: NSIDC
Keyword: Polar
Keyword: Polar Sea Ice
Keyword: Remote Sensing
Keyword: Sea Ice
Keyword: Sea Ice Extent
Sensor_Name: MODIS > Moderate-Resolution Imaging Spectroradiometer
Sensor_Name: SPECTRORADIOMETERS
Source_Name: TERRA > Earth Observing System, TERRA (AM-1)
Group: Temporal_Coverage
   Start_Date: 2000-02-24
End_Group
Group: Spatial_Coverage
   Southernmost_Latitude: -90
   Northernmost_Latitude: 90
   Westernmost_Longitude: -180
   Easternmost_Longitude: 180
End_Group
Group: Location
   Location_Category: CONTINENT
   Location_Type: ANTARCTICA
End_Group
Group: Location
   Location_Category: GEOGRAPHIC REGION
   Location_Type: ARCTIC
End_Group
Group: Location
   Location_Category: GEOGRAPHIC REGION
   Location_Type: GLOBAL OCEAN
End_Group
Group: Location
   Location_Category: GEOGRAPHIC REGION
   Location_Type: POLAR
End_Group
Group: Data_Resolution
   Latitude_Resolution: 4 km
   Longitude_Resolution: 4 km
   Temporal_Resolution: 1 day
End_Group
Project: EOSDIS > Earth Observing System Data Information System
Project: ESIP > Earth Science Information Partners Program
Group: Quality

   All MODIS/Terra sea ice products are considered validated at stage two, 
   meaning that product accuracy has been assessed over a widely distributed set 
   of locations and time periods via several ground truth and validation efforts. 
   Quality indicators for MODIS sea ice data can be found in the following two 
   places:

       * AutomaticQualityFlag and the ScienceQualityFlag metadata objects and 
   their corresponding explanations: AutomaticQualityFlagExplanation and 
   ScienceQualityFlagExplanation located in the CoreMetadata.0 global attributes  
   * Custom local attributes associated with each SDS, for example Ice Surface 
   Temperature.

   No automated quality assessment is done in this algorithm. All QA is inherited 
   from the MOD29 product. These quality indicators are generated during 
   production or in post-production scientific and quality checks of the data 
   product. For more information on local and global attributes, go to one of the 
   following links:

       * MOD29E1D and MYD29E1D Local Sea Ice Attributes, Version 5     * MOD29E1D 
   and MYD29E1D Global Sea Ice Attributes, Version 5

   The AutomaticQualityFlag is automatically set according to conditions for 
   meeting data criteria in the sea ice algorithm. In most cases, the flag is set 
   to either Passed or Suspect, and in rare instances, it may be set to Failed. 
   Suspect means that a significant percentage of the data were anomalous and 
   that further analysis should be done to determine the source of anomalies. The 
   AutomaticQualityFlagExplanation contains a brief message explaining the reason 
   for the setting of the AutomaticQualityFlag. The ScienceQualityFlag and the 
   ScienceQualityFlagExplanation maybe updated after production, either after an 
   automated QA program is run or after the data product is inspected by a 
   qualified scientist. Content and explanation of this flag are dynamic so it 
   should always be examined if present in the external metadata file. A sampling 
   of products will be inspected. Random sampling or support of specific events, 
   such as field campaigns, may also be conducted.

   Specific information on the science quality of the sea ice data products is 
   reported in the ScienceQualityFlagExplanation object in the CoreMetadata.0 
   global attribute. The URL for the QA site is given in the product metadata and 
   is linked to from the EOS Data Gateway (EDG) when ordering data. The 
   ScienceQualityFlagExplanation is changed in response to analysis and should be 
   checked for updated information. In the MOD29E1D data product, there are four 
   instances of the ScienceQualityFlagExplanation, one for each of the two 
   parameters, sea ice determined by reflectance data and ice surface 
   temperature, in each of the northern and southern grids written in the metadata.

   See the MODIS Land Quality Assessment Web site for further details.

End_Group
Data_Set_Language: English
Group: Data_Center
   Data_Center_Name: NASA DAAC > NASA DAAC at the National Snow and Ice Data Center
   Data_Center_URL: http://nsidc.org/daac/index.html
   Group: Personnel
      Role: Data Center Contact
      First_Name: NSIDC
      Last_Name: User Services
      Email: nsidc@nsidc.org
      Phone: 1 303 492-6199 
      Fax: 1 303  492-2468 
      Group: Contact_Address
         Address: National Snow and Ice Data Center
         Address: CIRES, 449 UCB
         Address: University of Colorado
         City: Boulder
         Province_or_State: CO
         Postal_Code: 80309-0449
         Country: USA
      End_Group
   End_Group
End_Group
Group: Data_Center
   Data_Center_Name: NSIDC > National Snow and Ice Data Center
   Data_Center_URL: http://nsidc.org
   Group: Personnel
      Role: Data Center Contact
      First_Name: NSIDC
      Last_Name: User Services
      Email: nsidc@nsidc.org
      Phone: 1 303 492-6199 
      Fax: 1 303  492-2468 
      Group: Contact_Address
         Address: National Snow and Ice Data Center
         Address: CIRES, 449 UCB
         Address: University of Colorado
         City: Boulder
         Province_or_State: CO
         Postal_Code: 80309-0449
         Country: USA
      End_Group
   End_Group
End_Group
Group: Distribution
   Distribution_Media: FTP
   Distribution_Size: 0.5 - 6.0 MB
   Distribution_Format: HDF-EOS
End_Group
Group: Distribution
   Distribution_Media: FTP
   Distribution_Size: 0.5 - 6.0 MB
   Distribution_Format: Geographic Tagged Image File Format (GeoTIFF) (.geotiff)
End_Group
Group: Reference

   Earth Science Data and Information System (ESDIS). 1996. EOS Ground System 
   (EGS) Systems and Operations Concept. Greenbelt, MD: Goddard Space Flight 
   Center.  Hall, Dorothy K., J. L. Foster, D. L. Verbyla, A. G. Klein, and C. S. 
   Benson. 1998. Assessment of Snow Cover Mapping Accuracy in a Variety of 
   Vegetation Cover Densities in Central Alaska. Remote Sensing of the 
   Environment 66:129-137.  Hall, Dorothy K., Jeffrey R. Key, Kimberly A. Casey, 
   George A. Riggs, and Donald Cavalieri. May 2004. Sea Ice Surface Temperature 
   Product From MODIS. IEEE Transactions on Geoscience and Remote Sensing 42:5.

   
Hall, Dorothy K. and J. Martinec. 1985. Remote Sensing of Ice and Snow. 
   London: Chapman and Hall.

   Hall, Dorothy K., George A. Riggs, and Vincent V. Salomonson. 1995. 
   Development of Methods for Mapping Global Snow Cover Using Moderate Resolution 
   Imaging Spectroradiometer (MODIS). Remote Sensing of the Environment 
   54(2):127-140.  Hall, Dorothy K., George A. Riggs, and Vincent V. Salomonson. 
   September 2001. Algorithm Theoretical Basis Document (ATBD) for the MODIS 
   Snow-, Lake Ice- and Sea Ice-Mapping Algorithms. Greenbelt, MD: Goddard Space 
   Flight Center. 

   Hapke, B. 1993. Theory of Reflectance and Emittance Spectroscopy. Cambridge: 
   Cambridge University Press.

   
Key, Jeffrey R., J. B. Collins, C. Fowler, and R. S. Stone. 1997. High 
   Latitude Surface Temperature Estimates From Thermal Satellite Data. Remote 
   Sensing of the Environment 61:302-309.

   
Key, Jeffrey R., J. A. Maslanik, T. Papakyriakou, Mark C. Serreze, and A. J. 
   Schweiger. 1994. On the Validation of Satellite-Derived Sea Ice Surface 
   Temperature. Arctic 47:280-287.

   
Markham, B. L. and J. L. Barker. 1986. Landsat MSS and TM Post-Calibration 
   Dynamic Ranges, Exoatmospheric Reflectances and At-Satellite Temperatures. 
   EOSAT Technical Notes 1:3-8.

   
MODIS Characterization and Support Team (MCST). 2000. MODIS Level-1B Product 
   User's Guide for Level-1B Version 2.3.x Release 2. MCST Document 
   #MCM-PUG-01-U-DNCN.

   

   Pearson II, F. 1990. Map Projections: Theory and Applications. Boca Raton, FL: 
   CRC Press, Inc.

   
Riggs, George A., Dorothy K. Hall, and Vincent V. Salomonson. February 2003. 
   MODIS Sea Ice Products User Guide.

   
Riggs, George A., Dorothy K. Hall, and S. A. Ackerman. 1999. Sea Ice Extent 
   and Classification Mapping With the Moderate Resolution Imaging 
   Spectroradiometer Airborne Simulator. Remote Sensing of the Environment 
   68:152-163.

   
Scambos, Ted A., Terry M. Haran, and Robert Massom. In press. Validation of 
   AVHRR and MODIS Ice Surface Temperature Products Using In Situ Radiometers. 
   Annals of Glaciology 44.

   
Wiscombe, W. J. and S. G. Warren. 1980. A Model for the Spectral Albedo of 
   Snow I: Pure Snow. Journal of the Atmospheric Sciences 37:2712-2733.

End_Group
Group: Summary

   MODIS/Terra Sea Ice Extent and IST Daily L3 Global 4km EASE-Grid Day 
   (MOD29E1D) data set contains fields for sea ice by reflectance and Ice Surface 
   Temperature (IST). Each data granule covers the entire globe with two separate 
   arrays of 4501 x 4501 pixels: one for the Arctic and one for the Antarctic. 
   The MODIS sea ice algorithm uses a Normalized Difference Snow Index (NDSI) 
   modified for sea ice to distinguish sea ice from open ocean based on 
   reflective and thermal characteristics.

End_Group
Group: Related_URL
   Group: URL_Content_Type
      Type: VIEW PROJECT HOME PAGE
   End_Group
   URL: http://nsidc.org/data/modis/
   Description: MODIS Data at NSIDC
End_Group
Group: Related_URL
   Group: URL_Content_Type
      Type: VIEW PROJECT HOME PAGE
   End_Group
   URL: http://nsidc.org/data/modis/
   Description: MODIS Data at NSIDC DAAC page
End_Group
Group: Related_URL
   Group: URL_Content_Type
      Type: VIEW PROJECT HOME PAGE
   End_Group
   URL: http://nsidc.org/data/seaice/
   Description: Sea Ice Products at NSIDC
End_Group
Metadata_Name: CEOS IDN DIF
Metadata_Version: 9.7
DIF_Creation_Date: 2006-12-18
Last_DIF_Revision_Date: 2013-11-14
DIF_Revision_History: Removed data disruption notice.