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EASE-Grid 2.0: Incremental but Significant Improvements for Earth-Gridded Data Sets
National Snow & Ice Data Center, Cooperative Institute of Environmental Sciences, University of Colorado, 449 UCB, Boulder, CO 80309, USA
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Received: 30 January 2012; in revised form: 28 February 2012 / Accepted: 1 March 2012 / Published: 13 March 2012
Abstract: Defined in the early 1990s for use with gridded satellite passive microwave data, the Equal-Area Scalable Earth Grid (EASE-Grid) was quickly adopted and used for distribution of a variety of satellite and in situ data sets. Conceptually easy to understand, EASE-Grid suffers from limitations that make it impossible to format in the widely popular GeoTIFF convention without reprojection. Importing EASE-Grid data into standard mapping software packages is nontrivial and error-prone. This article defines a standard for an improved EASE-Grid 2.0 definition, addressing how the changes rectify issues with the original grid definition. Data distributed using the EASE-Grid 2.0 standard will be easier for users to import into standard software packages and will minimize common reprojection errors that users had encountered with the original EASE-Grid definition.
Keywords: EASE-Grid 2.0; EASE-Grid; WGS 84; equal-area projections; Earth-gridded
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Brodzik, M.J.; Billingsley, B.; Haran, T.; Raup, B.; Savoie, M.H. EASE-Grid 2.0: Incremental but Significant Improvements for Earth-Gridded Data Sets. ISPRS Int. J. Geo-Inf. 2012, 1, 32-45.
Brodzik MJ, Billingsley B, Haran T, Raup B, Savoie MH. EASE-Grid 2.0: Incremental but Significant Improvements for Earth-Gridded Data Sets. ISPRS International Journal of Geo-Information. 2012; 1(1):32-45.
Brodzik, Mary J.; Billingsley, Brendan; Haran, Terry; Raup, Bruce; Savoie, Matthew H. 2012. "EASE-Grid 2.0: Incremental but Significant Improvements for Earth-Gridded Data Sets." ISPRS Int. J. Geo-Inf. 1, no. 1: 32-45.