EASE-Grid 2.0: Incremental but Significant Improvements for Earth-Gridded Data Sets
EASE-Grid 2.0: Incremental but Significant Improvements for Earth-Gridded Data Sets
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DOI：
10.3390/ijgi1010032
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发表时间：
2012-06-01
影响因子：
3.4
通讯作者：
Savoie, Matthew H.
中科院分区：
文献类型：
--
作者：
Brodzik, Mary J.;Billingsley, Brendan;Savoie, Matthew H.
20世纪90年代初为使用网格化卫星被动微波数据而定义的可扩展区域地球网格（EASE-Grid）很快得到采用，并用于分发各种卫星和现场数据集。EASE-Grid在概念上易于理解，但存在局限性，使得在不重新投影的情况下无法以广泛流行的GeoTIFF约定进行格式设置。将网格数据转换成标准的地图软件包是非常重要的，而且容易出错。本文为改进的EASE-Grid 2. 0定义定义了一个标准，讨论了这些更改如何纠正原始网格定义的问题。使用EASE-Grid 2.0标准分发的数据将更容易被用户导入标准软件包，并将最大限度地减少用户在使用原始EASE-Grid定义时遇到的常见重投影错误。
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.