I’m posting about the University of Maryland’s Global Land Cover Facility, a massive archive (13 terabytes and growing) of various kinds of satellite imagery and derived data, even though I suspect many readers of this blog are already familiar with it. Most of the data is freely downloadable, accessible through a browser-based interface, and georeferenced for use in GIS and satellite image analysis software. Images are typically at moderate resolution (15-250 meters per pixel); free access to Ikonos high-resolution imagery is available only to NASA-affiliated researchers. For multi-wavelength data, you can usually download separate images for every spectral band as well as composite images.
Direct satellite imagery includes:
ASTER (Advanced Spaceborne Thermal Emission and Reflection Radiometer))
- L1B Imagery (three different sets of IR imagery at various resolutions, covering the spectral range of 0.52-11.65 microns)
Landsat (Multiple bands, visible and IR, at 15-60 meter resolution from all Landsat missions)
- GeoCover
- Landsat ETM+
- Landsat MSS
- Landsat TM
MODIS (Moderate Resolution Imaging Spectroradiometer) (7 bands covering the visible and near-infrared ranges)
- 32-day Composites
- 16-day Composite
There are also many datasets derived from the multi-spectral satellite imagery and data from the Advanced Very High Resolution Radiometer (AVHRR).
Related posts:
- Near-Real-Time Georeferenced MODIS Satellite Images From The Terra/Aqua Satellites
- SPOT Medium-Resolution Multispectral Imagery For Canada
- The Big List Of Satellite/Aerial Imagery Analysis Software II – I Through M
- Most Recent MODIS Imagery In Google Earth
- Goofing Around With Pan-sharpening
- Real-Time (Almost) Satellite Images
- The Big List Of Satellite/Aerial Imagery Analysis Software III – N Through R
- Merging Raster Imagery With MicroDEM
- AVHRR Analysis Add-On For ILWIS
- The Big List Of Satellite/Aerial Imagery Analysis Programs V – GIS
- The Big List Of Satellite/Aerial Imagery Analysis Software – A Through H
- Topographic Maps, Satellite Photos And Vector Data For Israel And Jordan
- The Big List Of Satellite/Aerial Imagery Analysis Software IV – S Through Z
- Even More Mac GIS Software For Free
- Downloading Large-Scale Orthoquad Imagery From Terraserver
