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EQUI1: A GLOBAL GRID SYSTEM

机译:Equi1:全球网格系统

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Geophysical parameters derived from space-borne Earth Observation Systems are either assigned to discrete points on a fixed Earth grid (e.g. regular lon/lat grid) or located on orbital point nodes with a customized arrangement, often in-line with the instrument’s measurement geometry. The driving factors of the choice and structure of a spatial reference system (i.e. the grid) are typically spatial resolution, instrument geometry, measurement technique or application. In this study we propose a global grid system, the socalled Equi1 grid, and demonstrate its realization and structure. An exemplary Equi1 grid with a base sampling distance of 12.5 km is compared against two other grids commonly used in the domain of remote sensing of soil moisture. The simple nearly-equidistant grid design makes it interesting for a wide range of other geophysical parameters as well.
机译:来自太空地球观测系统的地球物理参数分配给固定地球网格(例如常规LON / LAT网格)上的离散点,或者位于具有定制布置的轨道点节点上,通常与仪器的测量几何形状一致。空间参考系统的选择和结构的驱动因素(即网格)通常是空间分辨率,仪器几何,测量技术或应用。在这项研究中,我们提出了一个全球网格系统,所谓的Equi1网格,并展示其实现和结构。将基础采样距离为12.5公里的示例性Equi1网格,其与土壤湿度遥感结构领域通常使用的另外两种网格进行比较。简单的几乎等距网格设计使其具有各种其他地球物理参数的兴趣。

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