MalaGIS

Sharing GIS Technologies, Resources and News.

Earthshots: Visualizing Land Surface Change with Landsat

For those working in remote sensing or GIS, Landsat is a familiar name: since 1972, this long-running land observation satellite program has accumulated a vast archive of imagery, serving as a critical data source for monitoring surface changes and conducting long-term time-series analysis. While the data itself can be downloaded from various platforms, connecting satellite images to real-world stories requires considerable effort. Recently, the editor discovered that the USGS maintains a thematic website at the EROS Center called Earthshots, which selects about 100 distinctive locations around the world and uses satellite imagery to showcase land surface changes over time. The editor finds it quite interesting and would like to recommend it.

more >>

Efficiently Downloading USGS Earthquake Data in Batches Using Excel

In previous articles, such as "Using Aria2 to Download GIS Data" and "Recommended Websites for Downloading Earthquake Data", the USGS (United States Geological Survey) was introduced as a source for global earthquake data. However, this website has a limitation: it will reject download requests if the query exceeds 2000 records. Therefore, a practical workaround is to construct download requests by month and download the data in batches. If I wanted to download all the data from 1900 until now, manually creating each download link would be very tedious. Hence, I came up with the following solution.

more >>

Copyright © 2020-2026 MalaGIS Drive by Typecho & Lingonberry Sitemap

Back to top