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Free Satellite Image Data

Free global satellite image data is available from an increasing number of sources. Here are the most important archives and other useful data:

• Free Global Satellite Imagery Data Sources:

• Parrot Sequoia® sample UAV multispectral image data.



• USGS Global Visualization Viewer (GLOVIS)
• Landsat
• ASTER
• Aerial
• EO-1
• MODIS


• USGS Earth Explorer
• Landsat
• ASTER
• Aerial
• EO-1
• MODIS
• Declassified Satellite
• DLG
• DRG


• USGS LandsatLook Viewer
• Landsat


• USGS Geospatial Data Gateway
• NAIP
• Ortho
• Transportation
• DEM
• other


• USGS National Map
• US Topo
• Historical Topo Maps
• Structures
• Transportation
• Boundaries
• Geographic Names
• USGS Map Indices
• Hydrography
• Contours
• Land Cover
• Elevation
• Orthoimagery


• ESA Copernicus Scientific Data Hub
• Sentinel-1 (SAR)
• Sentinel-2 (10m Multispectral)


• Natural Resources Canada Geogratis
• Landsat
• SPOT


• Vision on Technology Product Distribution Portal
• SPOT Vegetation
• PROBA-V


• University of Maryland Global Land Cover Facility (GLCF)
• Landsat
• ASTER
• SRTM DEM
• EO-1
• MODIS


• Landsat.org
• Landsat orthorectified data


• GeoBase SPOT and Landsat imagery
• Landsat
• SPOT


• Earth Now Real Time Landsat Swath Imagery
• This website shows near-realtime Landsat swath imagery. About a two hour delay.


• LP-DAAC ASTER/MODIS Data Pool
• USA ASTER


• NASA Echo-Reverb
• Landsat
• ASTER
• Too many to mention


• NASA WorldWind Java SDK site
• Landsat
• SRTM elevation data


• NASA ZULU GeoCover site
• Pan Sharpened Landsat 7, 4, 2 data


• NASA MODIS Rapid Response site
• MODIS resolution is low resolution but it is multispectral data available in near-realtime.


• NASA NOAA CLASS site
• SUOMI NPP data. See ftp link at the bottom of the page.


• VITO Vision on Technology site
• Free low resolution SPOT data from the Vegetaion sensor


• GIS Data Depot
• Lots of USA satellite-derived imagery. Some is free, some is fee. Check the other sites before paying. Great source for SDTS DEM data.



• The USGS Digital Spectral Library contains reflectance spectra for a wide variety of organic and inorganic materials. These can be used with the PANCROMA Spectral Analyzer for mineral prospecting and land use studies. One of the most valuable sites on the Internet.

• The JPL ASTER Spectral Library is another excellent source of reflectance spectra.

• Although not as powerful as true multispectral analysis using PANCROMA Point Spectrum Generator and Spectral Analysis tools, Landsat Band Combinations are also commonly used for prospecting and land use.

• More information on band combinations at the Portland State University Landsat band data

• Commercial Satellite Imagery Data Sources:

• Free RapidEye sample data.

• Free Digital Globe sample data.

• Free Formosat, Pleiades sample data.

• Geostationary Weather Imagery:

• NOAA National Hurricane Center Imagery
• Visible Flash
• IR Flash
• Water Vapor Flash
• Visible Image
• IR Image
• Water Vapor Image
• Other Global Weather Images


• NOAA GOES Geostationary Server
• Visible
• IR


• NOAA GOES Aviation Weather
• Turbulance
• Icing
• Convection
• Winds


• University of Wisconson Geostationary Weather Images
• Visible
• IR


• Australia Geostationary Satellite Images
• Visible
• IR
• NDVI
• Solar Irradiation


• Eumesat Satellite Images
• Visual
• Infrared


• SAT24 Global Weather Satellite Images
• Airmass
• Ash
• Convection
• Dust
• Much more interesting data

• DEM Data:

• USGS Global Data Explorer.

LP DAAC. Fairly easy to use once you figure it out. Excellent data archive. Download discrete tiles or seamless GeoTiff I16 format.

• High Resolution LIDAR DEM data by USA state.

• SRTM
• ASTER DEM
• GTOPO 30



• SRTM Tile Grabber.

Simple and intuitive one-tile-at-a-time SRTM DEM data in GeoTiff I16 format.

• SRTM CGIAR.

Another easy to use website. SRTM DEM data in I16 format.

• Sample Data for Experimenting with PANCROMA™:

• Zipped Sample GeoTiff Band Files 1,2,3 PAN for experimenting with RGB color composites and pan sharpening. These are subset files from a full sized Landsat data set.

• Zipped Landsat Sample GeoTiff Band Files Bands 1,2,3,4,5 and 7 for experimenting with PANCROMA™ Spectral Analysis utilities.

• Use these Landsat Sample GeoTiff Band File Sets for Gap Filling in order to experiment with the gap filling routines. The zip file contains six images subsetted and matched using PANCROMA™.

• Zipped Landsat Sample GeoTiff Band File Sets for Spectal Analyzer™ with Readme file and Spectral Criteral Form slider settings.

• Zipped Landsat Sample Landsat 8 Multispectral Band Data. Subsetted using PANCROMA™ subset utility.

• Link to USGS full Sample Landsat 8 Data Set.

• Useful Manuals and Reports

• PANCROMA Instruction Manual

• Link to All USGS Landsat Documentation.

• Using the USGS Landsat 8 Product Equations for converting Landst 8 DNs to TOA reflectance and atmospheric radiance.

• Landsat 8 Level 0 Reformatted Data Format Control Book

• Landsat 8 Data Format Control Book 1

• Landsat 8 Data Format Control Book 2

• LDCM CAL/VALALGORITHM DESCRIPTION DOCUMENT

• Converting Landsat 8 DNs to Radiance, Reflectance and Temperature

• Landsat 8 versus Landsat 7 false color band combination comparison.

• Landsat 7 Science Data Users Handbook

• Landsat 5 TM Radiometric Calibration Procedures

• WorldView2 Technical Notes

• DTED File Format

• Transformation Functions for Image Registration

• USGS Landsat Image Normalization Tutorial

• Franklin Approximation Final Report

• 2011 Digital Globe Data Fusion Contest Paper

• SPOT Technical Data

• SPOT FAQ

• ASTER User Handbook

• Mineral Prospecting using ASTER TIR Data

• How to Obtain ASTER Data

• ASTER Theoretical Basis

• ASTER TIR Recalibration Coefficients

• The ASTER Spectral Library Version 2.0

• Computing ASTER Reflectance

• RapidEye Satellite Imagery Product Specifications

• EO-1 User Guide

• ALI Data Format Guide

• Radiometric Calibration Coefficients for Landsat and ALI

• Landsat 7 on-orbit modulation transfer function estimation

• 3DEM Manual

• Canadian CDED DEM file format guide.

• Impact of sensor’s point spread function on land cover characterization: assessment and deconvolution

• Improved monitoring of suspended sediments in the Añasco River plume by using ETM+ by Luis A. Palmer Velázquez

• DETECTING AND EVALUATING LAND COVER CHANGE IN THE EASTERN HALF OF EAST TIMOR (1972 – 2011) by Helder Antonio Bento Da Costa.

• Useful Free Software

• Multispec

• Gimp

• MicroDem

• 3DEM

• TERRAINMAP.com Data List

• The TERRAINMAP.com Free Data List contains a comprehensive compilation of DEM and topographic map sources.

PANCROMA™ is used in technically advanced countries world-wide. Add yours to the list!