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| Content Provider | IEEE Xplore Digital Library |
|---|---|
| Author | Joan, M.G. Cesar, C. Fred, P. |
| Copyright Year | 2009 |
| Description | Author affiliation: Department of Earth Physics and Thermodynamics, Faculty of Physics, University of Valencia. 50, Dr. Moliner. 46100 Burjassot, Spain (Joan, M.G.; Cesar, C.) || Department of Climate and Atmosphere, Norwegian Institute for Air Research, 18 Instituttveien, 2015 Kjeller, Norway (Fred, P.) |
| Abstract | Land Surface Temperature (LST) monthly maps are necessary in climatic studies and remote sensing is a key tool used to obtain these maps. For this reason, we used the LST product of AATSR on board Envisat. This product uses a split-window algorithm which depends on vertical column water vapour content (W) and viewing angle. The algorithm proposed in Galve et al. [1] was also used, which is based on the Coll and Caselles [2] split-window model and depends explicitly on the emissivity and W. This algorithm was tested with concurrent ground measurements in the Valencia validation site, yielding an error of + 0.5 K. With both algorithms we perform LST maps over Europe with a spatial resolution of 0.05º using the emissivities given in the monthly average of the MODIS MOD11_8D product. Regarding W, we obtain it through the NCEP global Tropospheric Analysis product. In order to evaluate the quality of the maps we resampled these to a 1° pixel size for comparison with the LST from the NCEP Global Tropospheric Analyses product. The most similar algorithm to NCEP LST is Galve et al. [1] with a difference lower than ± 1.2 K. Regarding the maps obtained from the AATSR LST product, the difference was close to ± 1.7 K. |
| File Size | 491336 |
| File Format | |
| ISBN | 9781424433940 |
| DOI | 10.1109/IGARSS.2009.5417316 |
| Language | English |
| Publisher | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Publisher Date | 2009-07-12 |
| Publisher Place | South Africa |
| Access Restriction | Subscribed |
| Rights Holder | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Subject Keyword | Land surface Land surface temperature Radiometry Temperature sensors Remote sensing Testing Performance evaluation Europe Spatial resolution MODIS monthly maps LST AATSR |
| Content Type | Text |
| Resource Type | Article |
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