Land Surface Temperature and Emissivity


Land Surface TemperatureLand Surface Emissivity

 


Land Surface Temperature (LST)

Land Surface Temperature (LST) the radiative skin temperature over land. LST plays an important role in the physics of land surface as it is involved in the processes of energy and water exchange with the atmosphere. LST is useful for the scientific community, namely for those dealing with meteorological and climate models. Accurate values of LST are also of special interest in a wide range of areas related to land surface processes, including meteorology, hydrology, agrometeorology, climatology and environmental studies.

Available Products:

  • MLST: LST retrieval from clear-sky infrared observations performed by SEVIRI/MSG (also available as monthly composites); demonstration product available for the Indian Ocean Data Coverage (IODC)
  • DLST: 10-day composites of MLST, including pixel-wise maximum, minimum and median LST at each acquisition time and respective Thermal Surface Parameters
  • MLST-AS: All-sky LST based on a merge of the MLST product with cloudy LST derived by a Energy Balance Model
  • EDLST: LST retrieval from clear-sky infrared observations performed by AVHRR/Metop

 

The use of LSA SAF products in publications is kindly requested to be duly acknowledged:

[product] was provided by the EUMETSAT Satellite Application Facility on Land Surface Analysis (LSA SAF; Trigo et al., 2011)
http://lsa-saf.eumetsat.int

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. García-Haro, B. Geiger, F. Gellens-Meulenberghs, N. Ghilain, J. Meliá, 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

Product specific citations:

  • MLST [LSA-004]:

Ermida, S.L., Trigo, I.F., DaCamara, C.C., Pires, A.C., 2018. A Methodology to Simulate LST Directional Effects Based on Parametric Models and Landscape Properties. Remote Sens. 10, 1114. https://doi.org/10.3390/rs10071114

  • MLST [LSA-001, LSA-004, LSA-050]:

Trigo, I.F., Monteiro, I.T., Olesen, F., Kabsch, E., 2008. An assessment of remotely sensed land surface temperature. J. Geophys. Res. 113, 1–12. https://doi.org/10.1029/2008JD010035

  • DLST [LSA-003]:

Göttsche, Frank-M. , and Olesen, Folke-S. (2009), Modelling the effect of optical thickness on diurnal cycles of land surface temperature. Remote Sensing of Environment, Vol. 113(11), pp. 2306-2316. https://doi.org/10.1016/j.rse.2009.06.006

Hong, F., Zhan, W., Göttsche, F.-M., Liu, Z., Zhou, J., Huang, F., Lai, J. and Li, M. (2018), Comprehensive assessment of four-parameter diurnal land surface temperature cycle models under clear-sky. ISPRS Journal of Photogrammetry and Remote Sensing, vol. 142, pp. 190-204. https://doi.org/10.1016/j.isprsjprs.2018.06.008

  • MLST-AS [LSA-005]:

Martins, J.P.A., Trigo, I.F., Ghilain, N., Jimenez, C., Göttsche, F.-M., Ermida, S.L., Olesen, F.-S., Gellens-Meulenberghs, F., Arboleda, A., 2019. An all-weather land surface temperature product based on MSG/SEVIRI observations. Remote Sens. 11. https://doi.org/10.3390/rs11243044

  • EDLST [LSA-002]:

Trigo, I.F., Ermida, S.L., Martins, J.P.A., Gouveia, C.M., Göttsche, F.-M., Freitas, S.C., 2021. Validation and consistency assessment of land surface temperature from geostationary and polar orbit platforms: SEVIRI/MSG and AVHRR/Metop. ISPRS J. Photogramm. Remote Sens. 175, 282–297. https://doi.org/10.1016/J.ISPRSJPRS.2021.03.013

Available data formats:

  • Geostationary/sinusoidal grid in HDF5
  • Regular grid in NETCDF4

Data Server information:

 

Register here to access the LSA-SAF Data Server

When available, the Data Record (DR) datasets replace the corresponding Near Real Time (NRT) data in the Data Server for the overlapping period. The DR ensures continuous times series since it is produce with the most recent algorithm version. To obtain NRT data for the DR period plase contact the Help Desk.

  Product Sensor/
Platform
Spatial
coverage
Spatial
resolution
Temporal
Coverage
Temporal
resolution
Documentation Data access
LSASAF_MSG_LST_MSG-Disk.png

MSG LST1
Directional effects
MLST [LSA-004]

Operational

SEVIRI/
MSG
Europe, Africa,
South America
3 km
0.05ox0.05o

2021-NRT

15 min

Access Here

 

Data Server
LSASAF_MSG_LST_MSG-Disk.png

MSG LST1
MLST [LSA-001]

Superseded (LSA-004)

SEVIRI/
MSG
Europe, Africa,
South America
3 km
0.05ox0.05o
2005-2021 15 min
LSASAF_MSG_LST_MSG-Disk.png

MSG LST
Data Record

MLST [LSA-050]

Data Record  DOI

SEVIRI/
MSG

 
Europe, Africa,
South America
3 km
0.05ox0.05o
2004-2015 15 min Access Here
LSASAF_MSG-IODC_LST_IODC-Disk.png

MSG-IODC LST
MLST

Demonstration

SEVIRI/
MSG
Europe, Africa,
Middle East
3 km
0.05ox0.05o
2017-NRT 15 min Access Here

Data Server

LSASAF_MSG_DLST-TSPMED10D_MSG-Disk.png

MSG Derived LST
DLST [LSA-003]

Operational

SEVIRI/
MSG
Europe, Africa,
South America
3 km
0.05ox0.05o
2005-NRT 10-daily

Access Here

Data Server

LSASAF_MSG-IODC_DLST-TSPMED10D_IODC-Disk.png

MSG-IODC
Derived LST
DLST 

Demonstration

SEVIRI/
MSG
Europe, Africa,
Middle East
3 km 2017-NRT 10-daily

Data Server

LSASAF_MSG_MLST-AS_MSG-Disk.png

MSG LST
All-Sky v2

MLST-ASv2 [LSA-005.2]

Demonstration

SEVIRI/
MSG
Europe, Africa,
South America
3 km
0.05ox0.05o
2004-NRT 30 min

Access Here

Data Server

LSASAF_MSG_MLST-AS_MSG-Disk.png

MSG LST
All-Sky

MLST-AS [LSA-005]

Operational

SEVIRI/
MSG
Europe, Africa,
South America
3 km
0.05ox0.05o
2020-NRT 30 min

Access Here

Data Server

EDLST_product_description_sicled.gif

EPS Daily LST
EDLST [LSA-002]

Operational

AVHRR/
Metop
Global 1 km
0.01ox0.01o
2015-NRT Day/night

Access Here

Data Server

1the LST variable is consistent across products LSA-001 and LSA-004

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Land Surface Emissivity (LSE)

Land Surface Emissivity (EM) is an intrinsic property of all materials, which measures their efficiency in converting heat into radiation. It is a critical variable in the quantification of the surface energy budget and for the estimation of surface parameters from earth observation data. The LSE varies with surface composition, roughness and water content. It also depends on observation conditions, such as the sensed wavelength, spatial resolution and viewing angle.

 

Available Products:

  • MEM: daily LSE estimates base on the Vegetation Cover Method
  • MEMD: direct emissivity retrieval based on a Kalman filter approach, a physical scheme that allows the simultaneous retrieval of surface emissivity and temperature

 

The use of LSA SAF products in publications is kindly requested to be duly acknowledged:

[product] was provided by the EUMETSAT Satellite Application Facility on Land Surface Analysis (LSA SAF; Trigo et al., 2011)
http://lsa-saf.eumetsat.int

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. García-Haro, B. Geiger, F. Gellens-Meulenberghs, N. Ghilain, J. Meliá, 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

Product specific citations:

  • MEM:

Trigo, I.F., Peres, L.F., Dacamara, C.C., Freitas, S.C., 2008. Thermal land surface emissivity retrieved from SEVIRI/Meteosat. IEEE Trans. Geosci. Remote Sens. 46, 307–315.

  • MEMD [LSA-006]:

Masiello, G., Serio, C., De Feis, I., Amoroso, M., Venafra, S., Trigo, I.F., Watts, P., 2013. Kalman filter physical retrieval of surface emissivity and temperature from geostationary infrared radiances. Atmos. Meas. Tech. 6, 3613–3634. https://doi.org/10.5194/amt-6-3613-2013

Available data formats:

  • Geostationary/sinusoidal grid in HDF5
  • Regular grid in NETCDF4

Data Server information:

Register here to access the LSA-SAF Data Server

  Product Sensor/
Platform
Spatial
coverage
Spatial
resolution
Temporal
Coverage
Temporal
resolution
Documentation Data access
LSASAF_MSG_EMMAPS_MSG-Disk.png

MSG EM
MEM

Demonstration

SEVIRI/
MSG
Europe, Africa,
South America
3 km
0.05ox0.05o
2004-NRT daily Access Here

 

LSASAF_MSG-IODC_EMMAPS_IODC-Disk.png

MSG-IODC EM
MEM

Demonstration

SEVIRI/
MSG
Europe, Africa,
Middle East
3 km 2017-NRT daily Access Here  
LSASAF_MSG_MEMD_MSG-Disk.png

MSG EM
Direct Retrieval
MEMD [LSA-006]

Pre-operational

SEVIRI/
MSG
Europe, Africa,
South America
3 km
0.05ox0.05o
2020-NRT daily

Access Here

Data Server

 

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