全球30m分辨率SRTM数据集

数据集通过网络挖掘获取，该数据来自于航天飞机雷达地形测绘任务SRTM（Shuttle Radar Topography Mission），由美国国家航空和航天局NASA和国家地理空间情报局(NGA)于2000年2月通过航天飞机执行。该任务为期11天，通过雷达干涉测量、机载/舷外天线系统和单次数据采集采集数据，生成近全球陆地高程数据产品，SRTM成功地收集了超过80%的地球表面的高程数据。本数据集选取了SRTM1（1 arc-second）包含3601*3601个采样点的高程数据，精度约30m。

This dataset is obtained via web scraping. It originates from the Shuttle Radar Topography Mission (SRTM), which was conducted by the National Aeronautics and Space Administration (NASA) and the National Geospatial-Intelligence Agency (NGA) aboard a space shuttle in February 2000. Lasting 11 days, this mission collected data through radar interferometry, airborne and off-board antenna systems and a single data acquisition campaign, producing near-global terrestrial elevation data products. SRTM successfully gathered elevation data covering over 80% of the Earth's land surface. This dataset extracts the elevation data from SRTM1 (1 arc-second), which contains 3601 × 3601 sampling points, with an approximate accuracy of 30 meters.

搜集汇总

背景与挑战

背景概述

该数据集是2000年由NASA和NGA通过航天飞机雷达地形测绘任务(SRTM)获取的全球30米分辨率高程数据，覆盖超过80%的地球陆地表面，平面精度±20米，高程精度±16米。数据适用于自然地理学等科学研究，使用时需遵守数据引用和致谢规范。