@@ -25,4 +25,13 @@ Develop a web-based map viewer that allows comparison of past and present satell
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@@ -25,4 +25,13 @@ Develop a web-based map viewer that allows comparison of past and present satell
-**GIS Tools:** QGIS (data prep).
-**GIS Tools:** QGIS (data prep).
-**Backend (optional):** Python/Flask or Node.js for serving imagery.
-**Backend (optional):** Python/Flask or Node.js for serving imagery.
-**Data Formats:** GeoTIFF, raster tiles.
-**Data Formats:** GeoTIFF, raster tiles.
-**OS:** Mac / Windows / Linux.
-**OS:** Mac / Windows / Li
Data Sources.
You can get open-source satellite imagery for your time-series campus viewer from several platforms: Landsat (USGS/NASA) provides historical data back to the 1970s via EarthExplorer
; Sentinel-2 (Copernicus/ESA) offers higher-resolution recent imagery through Copernicus Open Access Hub
or AWS Sentinel-2
; the Harmonized Landsat & Sentinel (HLS) dataset (hls.gsfc.nasa.gov
) combines both for easier change detection; EO Browser (sentinel-hub.com
) and EOS LandViewer provide quick online previews and downloads; World Imagery Wayback (livingatlas.arcgis.com
) gives access to historic basemap imagery; and OpenAerialMap (openaerialmap.org
) provides open UAV and aerial photos, useful for higher-resolution campus-level analysis.
