Google Earth Engine（GEE）——全球河流三角洲和易损性数据集

全球河流三角洲和易损性

前言 – 床长人工智能教程 全球河流三角洲数据集结合了2174个三角洲位置和定义三角洲面积的多边形。我们将三角洲地区定义为由三角洲河道运动和三角洲退化形成的地貌活动范围。我们专注于渠道网络活动，因为它定义了最容易发生洪水的区域，并创造了资源和自然基础设施，使三角洲成为有吸引力的居住地。我们用包含三角洲活动的五个点来定义三角洲的多边形。这五个点标志着三角洲活动的可见痕迹，其中两个点是沿海岸线沉积的横向范围，三个点是沉积的上游和下游范围。围绕这五个点的凸体定义了一个三角洲多边形。你可以在这里阅读这篇开源论文，

Coastal flooding will disproportionately impact people on river deltas | Nature Communications

你可以在这里的补充材料中下载用于创建特征集合的数据。

https://static-content.springer.com/esm/art%3A10.1038%2Fs41467-020-18531-4/MediaObjects/41467_2020_18531_MOESM3_ESM.xlsx

代码：

var convex_hull = ee.FeatureCollection("projects/sat-io/open-datasets/delta/delta-convex-hull");
var convex_hull_bound = ee.FeatureCollection("projects/sat-io/open-datasets/delta/delta-convex-bounds");

Map.addLayer(ee.FeatureCollection(convex_hull),{},'Delta Convex Hull');
Map.addLayer(ee.FeatureCollection(convex_hull_bound),{},'Delta Convex Hull Bounds');

引用：

Edmonds, Douglas A., Rebecca L. Caldwell, Eduardo S. Brondizio, and Sacha MO Siani.
"Coastal flooding will disproportionately impact people on river deltas."
Nature communications 11, no. 1 (2020): 1-8.

License¶

This work is licensed under a Creative Commons Attribution 4.0 International License. You are free to copy and redistribute the material in any medium or format, and to transform and build upon the material for any purpose, even commercially. You must give appropriate credit, provide a link to the license, and indicate if changes were made.

Curated by: Samapriya Roy

Keywords: : Fluvial Geomorphology, Hydrology, Rivers, Coastal Rivers, Tidal, River Mouth, Vulnerability, Poverty

Last updated: 2021-04-24