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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.

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Recreating the 'Your Name in Landsat' Experience: A Step-by-Step Guide

In the previous article "Discover Landsat's New Tool: Turning Your Name into Artistic Maps", I introduced NASA's fun application "Your Name In Landsat". Recently, the official website became inaccessible, prompting inquiries from readers about alternatives. After searching without finding a viable solution, I decided to recreate the experience myself.

Access the demo: https://malagis.com/extension/demo/your-name-in-landsat/

Below is a brief overview of the implementation process.

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Comparative Analysis of Landsat 9 and Sentinel-2 Satellite Parameters

This article contrasts the core technical specifications of Landsat 9 and Sentinel-2, key Earth observation satellites for environmental monitoring.

Mission Overview

Landsat 9

  • Launch Date: September 27, 2021
  • Agencies: NASA and USGS
  • Objective: Continuation of long-term Earth monitoring for environmental change, land use, and climate studies

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