This page give you an overview on free available satellite imagery and derived products:
- Landsat Satellite Imagery
- Global Forest Change
- SRTM – Digital Elevation
- On-demand smoothed and/or raw NDVI & EVI time series
- more to come soon….
Landsat – Imagery
Overview on all Landsat Satellites:
| Satellite | Resolution | Bands |
| Landsat 1-5 Multispectral Scanner (MSS) | 60m | 4 |
| Landsat 4-5 Thematic Mapper (TM) | 30m | 7 |
| Landsat 7 Enhanced TM (ETM+) | 30m | 8 |
| Landsat 8 Operational Land Imager (OLI) | 30m | 9 |
| Landsat 8 Thermal Infrared Sensor (TIRS) | 30m | 2 |
Useful Links and further information:
- Band designations of Landsat Satellites
- Use of each spectral band
- Frequently Asked Questions about the Landsat Mission
Data Download:
- EarthExplorer: http://earthexplorer.usgs.gov geographical searches of data
- Global Visualization Viewer (GloVis): http://glovis.usgs.gov browser-based viewer
- LandsatLook Viewer: http://landsatlook.usgs.gov tool that allows rapid online viewing
Global Forest Change
Change in global forest cover based on Landsat Time Series Analysis published by the University of Maryland.
- Spatial resolution: 1 arc-second per pixel (30 m at the equator)
- Available Data:
- Tree canopy cover for year 2000 (
treecover2000) - Global forest cover loss 2000–2013 (
loss) - Global forest cover gain 2000–2012 (
gain) - Year of gross forest cover loss event (
lossyear) - Data mask (
datamask) - Circa year 2000 Landsat 7 cloud-free image composite (
first) - Circa year 2013 Landsat cloud-free image composite (
last)
- Tree canopy cover for year 2000 (
- Viewer: here
- Download and more information: here
On-demand smoothed and raw NDVI/EVI time series
The University of Applied Life Sciences and Natural Resources, Vienna offers globally available raw and demand filtered NDVI/EVI time series. The operational processing is based on MOD13Q1 and MYD13Q1 and the spatial resolution is 250m.
- Download (16-Day smoothed and/or raw NDVI & EVI time series – global): here
- Download (Real-time processing facility – EU): here
SRTM 90 – Digital Elevation Data
Spatial resolution: 90m
Download: http://srtm.csi.cgiar.org