MODIS/Aqua Sea Ice Extent and IST Daily L3 Global 4km EASE-Grid Day, Version 4

Data Contributors HALL, DOROTHY K. SALOMONSON, VINCE V. RIGGS, GEORGE A. Parameters ICE EXTENT ICE TEMPERATURE Instruments MODIS : MODERATE-RESOLUTION IMAGING SPECTRORADIOMETER SPECTRORADIOMETERS

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MODIS/Aqua Sea Ice Extent and IST Daily L3 Global 4km EASE-Grid Day (MYD29E1D) contains the following fields: sea ice by reflectance and ice surface temperature (IST). Each data granule covers the entire globe with two separate arrays of 4321 x 4321 pixels: one for the Arctic and one for the Antarctic. Data extend from 04 July 2002 to present. Version 4 (V004) is the latest version of MODIS data available from NSIDC. 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. Data are available by FTP, CD-ROM, DVD, or DLT.

Until the reprocessing campaign is finished, the complete set of Version 4 (V004) data will remain available. Thus, if you need V004 documentation, please contact the National Snow and Ice Data Center (NSIDC) User Services at http://nsidc.org/forms/contact.html.

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Data Citation

The following example shows how to cite these data in a publication. List the principal investigators, year of data set release (2004), data set title and version, date of the version you used, publisher (NSIDC), and digital media.

Hall, Dorothy K., George A. Riggs, and Vincent V. Salomonson. 2003, updated daily. MODIS/Aqua Sea Ice Extent and IST Daily L3 Global 4km EASE-Grid Day V004, December 2003 to January 2004. Boulder, CO, USA: National Snow and Ice Data Center. Digital media.

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