Description
FDeM FRM DLST ENDVI EDLST
EPS Daily Land Surface Temperature

Product Documentation
   Documents:
           (Product User Manual)
           (Product Output Format)
           (Validation Report)
           (Algorithm Theoretical Basis Document)
Data Policy
Introduction
Product Description
Algorithm Description
Data Characteristics
Product Uncertainties
References
Example of Product
See the dependency diagram for this product
Algorithms Changes Record (EDLST)
Product Documentation
This product has pre-operational status. It is documented in the Algorithm Theoretical Basis Document (ATBD), Product User Manual document (PUM) and the Product Output Format document (POF) The validation documentation for this product is available in the (VR) document.
 
Data Policy
The use of LSA SAF products in publications is kindly requested to be duly acknowledged:
EDLST was provided by the EUMETSAT Satellite Application Facility on Land Surface Analysis (LSA SAF; Trigo et al., 2011)
http://landsaf.ipma.pt

Trigo, I. F., C. C. DaCamara, P. Viterbo, J.-L. Roujean, F. Olesen, C. Barroso, F. Camacho-de Coca, D. Carrer, S. C. Freitas, J. Garcia-Haro, B. Geiger, F. Gellens-Meulenberghs, N. Ghilain, J. Melia, L. Pessanha, N. Siljamo, and A. Arboleda, 2011: The Satellite Application Facility on Land Surface Analysis. Int. J. Remote Sens., 32, 2725-2744, doi: 10.1080/01431161003743199
 
Introduction
Land Surface Temperature (LST) is the radiative skin temperature over land.
 
Product Description
The EDLST (EPS Daily Land Surface Temperature) provides a day-time and nigh-time retrievals of LST based on clear-sky measurements from the Advanced Very High Resolution Radiometer (AVHRR) on-board EUMETSAT polar system satellites, the Metop series.
 
Algorithm Description
The Generalised Split-Window (GSW) algorithm (Wan and Dozier, 1996) was chosen to retrieve LST. The GSW performs corrections for atmospheric effects based on the differential absorption in adjacent IR bands and requires EM as input data; a look-up table of optimal coefficients is previously determined at individual classes of satellite viewing angles, and covering different ranges of water vapour and near-surface air temperature.
 
Data Characteristics
The EDLST product is available on a daily basis in a 1 km global sinusoidal grid centred at (0°N, 0°W).
 
Product Uncertainties
N.A.
 
References
Wan. Z., J. Dozier, 1996. A generalised split-window algorithm for retrieving land-surface temperature from space, IEEE Trans. Geosci. Remote Sens., vol. 34 no. 34, pp. 892-905.

Example of Product
ftp://landsaf.ipma.pt/pub/Example_of_Product/HDF5_LSASAF_M01-AVHR_EDLST-DAY_GLOBE_20170222000003
ftp://landsaf.ipma.pt/pub/Example_of_Product/HDF5_LSASAF_M01-AVHR_EDLST-NIGHT_GLOBE_20170222000003
 
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