Difference between revisions of "Remote sensing data"
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[[Category:Remote Sensing]] | [[Category:Remote Sensing]] | ||
| − | + | == Overview of remote sensing data that may be useful for hydrological analysis == | |
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{|border=1 | {|border=1 | ||
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|NASA||EOS AQUA ||AMSR-E ||?? | |NASA||EOS AQUA ||AMSR-E ||?? | ||
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| − | |ESA||METEOSAT||??|| | + | |ESA||METEOSAT||??||MSG-1 aka Meteosat-8 (launched 2002) carries the Spinning Enhanced Visible and Infrared Imager (SEVIRI). SEVIRI continuously the entire earth disk at a frequency of 15 minutes and has 12 spectral channels, 8 of which can be used for monitoring the earth surface. Channel 12 is a high resolution visible (hrv) channel, which has a resolution of 1 km at the sub-satellite point (1.5 – 2 km over Europe). All of the other channels have a spatial resolution of 3 km at the sub-satellite point (5 – 6 km over Europe). |
|- | |- | ||
|???||MERIS||??||NDVI? CLOUD COVER? 260x290m | |???||MERIS||??||NDVI? CLOUD COVER? 260x290m | ||
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|NASA||TERRA/AQUA||MODIS||http://www.landcover.org | |NASA||TERRA/AQUA||MODIS||http://www.landcover.org | ||
| + | |} | ||
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| + | == Some more information == | ||
| + | |||
| + | The channels of SEVERI on board meteosat-8 (spectral band / μm) | ||
| + | |||
| + | (from http://las.physik.uni-oldenburg.de/eProceedings/vol05_1/05_1_de-ruyter1.pdf) | ||
| + | |||
| + | |||
| + | {|border=1 | ||
| + | !Channel!!min!!max!!description | ||
| + | |- | ||
| + | | 1 || 0.635 || 0.56 || 0.71 visual | ||
| + | |- | ||
| + | | 2 || 0.81 || 0.74 || 0.88 visual | ||
| + | |- | ||
| + | | 3 || 1.64 || 1.50 || 1.78 near infrared | ||
| + | |- | ||
| + | | 4 || 3.90 || 3.48 || 4.36 infrared | ||
| + | |- | ||
| + | | 5 || 6.25 || 5.35 || 7.15 infrared (water vapour absorption) | ||
| + | |- | ||
| + | | 6 || 7.35 || 6.85 || 7.85 infrared (water vapour absorption) | ||
| + | |- | ||
| + | | 7 || 8.70 || 8.30 || 9.1 infrared | ||
| + | |- | ||
| + | | 8 || 9.66 || 9.38 || 9.94 infrared (ozone absorption) | ||
| + | |- | ||
| + | | 9 || 10.80 || 9.80 || 11.80 infrared | ||
| + | |- | ||
| + | | 10 || 12.00 || 11.00 || 13.00 infrared | ||
| + | |- | ||
| + | | 11 || 13.40 || 12.40 || 14.40 infrared (CO2 absorption) | ||
| + | |- | ||
| + | | 12 || 0.75 || 0.60 || 0.90 high resolution visual broadband (hrv) | ||
|} | |} | ||
Revision as of 14:53, 30 January 2008
Overview of remote sensing data that may be useful for hydrological analysis
| Institute | Satellite | Sensor | Notes |
|---|---|---|---|
| ESA | ENVISAT | ASAR | APG HH and HV -> delineation of water bodies |
| NASA | ?? | AVHRR | http://www.nsof.class.noaa.gov, cloud cover |
| NASA | EOS AQUA | AMSR-E | ?? |
| ESA | METEOSAT | ?? | MSG-1 aka Meteosat-8 (launched 2002) carries the Spinning Enhanced Visible and Infrared Imager (SEVIRI). SEVIRI continuously the entire earth disk at a frequency of 15 minutes and has 12 spectral channels, 8 of which can be used for monitoring the earth surface. Channel 12 is a high resolution visible (hrv) channel, which has a resolution of 1 km at the sub-satellite point (1.5 – 2 km over Europe). All of the other channels have a spatial resolution of 3 km at the sub-satellite point (5 – 6 km over Europe). |
| ??? | MERIS | ?? | NDVI? CLOUD COVER? 260x290m |
| NASA | TRMM | ?? | 25x25km resolution (0.25°), rainfall |
| NASA | ASTER | ?? | temperature, reflectance, elevation. On demand, and does not seem to exist for the tropical Andes |
| NASA | TERRA/AQUA | MODIS | http://www.landcover.org |
Some more information
The channels of SEVERI on board meteosat-8 (spectral band / μm)
(from http://las.physik.uni-oldenburg.de/eProceedings/vol05_1/05_1_de-ruyter1.pdf)
| Channel | min | max | description |
|---|---|---|---|
| 1 | 0.635 | 0.56 | 0.71 visual |
| 2 | 0.81 | 0.74 | 0.88 visual |
| 3 | 1.64 | 1.50 | 1.78 near infrared |
| 4 | 3.90 | 3.48 | 4.36 infrared |
| 5 | 6.25 | 5.35 | 7.15 infrared (water vapour absorption) |
| 6 | 7.35 | 6.85 | 7.85 infrared (water vapour absorption) |
| 7 | 8.70 | 8.30 | 9.1 infrared |
| 8 | 9.66 | 9.38 | 9.94 infrared (ozone absorption) |
| 9 | 10.80 | 9.80 | 11.80 infrared |
| 10 | 12.00 | 11.00 | 13.00 infrared |
| 11 | 13.40 | 12.40 | 14.40 infrared (CO2 absorption) |
| 12 | 0.75 | 0.60 | 0.90 high resolution visual broadband (hrv) |