MODIS/Aqua Sea Ice Extent and IST Daily L3 Global 4km EASE-Grid Day, Version 5

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) 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. MODIS/Aqua Version 5 (V005) data extend from 4 July 2002 to present; however, until reprocessing is complete in mid-2008 not all V005 data will be available. Data are available by FTP, CD-ROM, DVD, or DLT. Data can be obtained in GeoTIFF format by ordering the data through the Data Pool.

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 the use of this data set in a publication. List the principal investigators, year of data set release, data set title and version number, dates of the data you used (for example, December 2003 to March 2004), publisher: NSIDC, and digital media.

Hall, Dorothy K., George A. Riggs, and Vincent V. Salomonson. 2007, updated daily. MODIS/Aqua Sea Ice Extent and IST Daily L3 Global 4km EASE-Grid Day V005, [list the dates of the data used]. Boulder, Colorado USA: National Snow and Ice Data Center. Digital media.

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