Google Earth Engine（GEE）——Umbra卫星翁布拉合成孔径雷达公开数据

翁布拉合成孔径雷达公开数据

Umbra卫星产生的SAR图像是有史以来商业化提供的最高分辨率的图像（优于25厘米/10英寸）。合成孔径雷达卫星可以在夜间、透过云层、烟雾和雨水捕捉图像。合成孔径雷达在监测变化方面的能力是独一无二的。开放数据计划（ODP）监测世界上十个不同的地点。经常用新的图像进行更新。ODP使用户能够分析时间序列数据以检测每个地点的变化。前言 – 人工智能教程

数据子集¶

由于GEC数据已经被编码为geotiffs，所以只从现有的数据集中选择了GEC数据。SAR GEC数据是一个地理编码的产品，被平铺到一个单一的海拔高度，以减少视觉失真。它是可分析的，尽管它也包含了停顿和前移。SAR GEC数据通常是作为从斜面或地面测距雷达图像处理后的产品。它只包含振幅信息。

Ciation¶

Umbra Synthetic Aperture Radar (SAR) Open Data was accessed on DATE from https://registry.opendata.aws/umbra-open-data.

Earth Engine Snippet¶

var umbra_open = ee.ImageCollection('projects/sat-io/open-datasets/UMBRA/open-data');

Sample Code: https://code.earthengine.google.com/?scriptPath=users/sat-io/awesome-gee-catalog-examples:global-events-layers/UMBRA-OPENDATA

License¶

All Umbra data is provided to customers under a modified version of the Creative Commons Attribution 4.0 International (CC BY 4.0) license. Creative Commons, the nonprofit that created and maintains CC BY 4.0. While Umbra will always remain the underlying copyright holder for data provided to customers, our licensing strategy allows customers to i) Freely publish the data, with attribution, under the CC BY 4.0 license ii) Resell our data, at a profit, without paying a royalty to Umbra iii) Create derivative works, like analytics, and sell them at a profit (again, without paying a royalty to Umbra)

Provided by: Umbra

Curated in GEE by: Samapriya Roy

Keywords: UMBRA, SAR, GED, Open data

Last updated in GEE: 23/03/2023