Albedo


Albedo


Land Surface Albedo (AL)

Land Surface Albedo (AL) is a key variable for characterising the energy balance in the coupled soil-vegetation-atmosphere system. The albedo quantifies the part of the energy that is absorbed and transformed into heat and latent fluxes. Owing to strong feedback effects the knowledge of albedo is important for determining weather conditions at the atmospheric boundary layer. Climate sensitivity studies with Global Circulation Models have confirmed the unsteady nature of the energy balance with respect to small changes in surface albedo. Other domains of applications are in hydro-meteorology, agro-meteorology and environment-related studies.

Available Products:

  • MDAL: daily surface albedo estimates (with a characteristic time scale of 5 days) based on observations performed by SEVIRI/MSG; demonstration product available for the Indian Ocean Data Coverage (IODC)
  • MTAL: 30-day composites of MDAL updated every 10 days; demonstration product available for the Indian Ocean Data Coverage (IODC)
  • ETAL: 10-daily surface albedo estimates (with a characteristic time scale of 20 days) based on 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:

  • MDAL [LSA-101]:

Geiger, B., Carrer, D., Franchisteguy, L., Roujean, J.-L. & Meurey, C., 2008: Land surface albedo derived on a daily basis from Meteosat second generation observations. IEEE Transactions on Geoscience and Remote Sensing 46, 3841–3856.

  • MTAL [LSA-102, LSA-150]:

Carrer, D.; Moparthy, S.; Lellouch, G.; Ceamanos, X.; Pinault, F.; Freitas, S.C.; Trigo, I.F., 2018: Land Surface Albedo Derived on a Ten Daily Basis from Meteosat Second Generation Observations: The NRT and Climate Data Record Collections from the EUMETSAT LSA SAF. Remote Sens., 10, 1262. https://doi.org/10.3390/rs10081262

  • ETAL [LSA-103]:

Lellouch, G.; Carrer, D.; Vincent, C.; Pardé, M.; C. Frietas, S.; Trigo, I.F., 2020: Evaluation of Two Global Land Surface Albedo Datasets Distributed by the Copernicus Climate Change Service and the EUMETSAT LSA-SAF. Remote Sens., 12, 1888. https://doi.org/10.3390/rs12111888

Available data formats:

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

Data Server information:

ProductSensor/
Platform
Spatial
coverage
Spatial
resolution
Temporal
Coverage
Temporal
resolution
DocumentationData access

MSG Daily ALv2
MDALv2 [LSA-101.2]

Operational

SEVIRI/
MSG
Europe, Africa,
South America
3 km
0.05ox0.05o
2023-NRTdailyAccess HereData Server

MSG Daily AL
MDAL [LSA-101]

Operational

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

2016-NRT

dailyAccess Here

Data Server

MSG Daily AL
Data Record

MDAL

Demonstration

SEVIRI/
MSG
Europe, Africa,
South America
3 km
0.05ox0.05o
2004-2015dailyAccess Here
LSASAF_MSG-IODC_ALBEDO_IODC-Disk.png

MSG-IODC
Daily AL

MDAL

Demonstration

SEVIRI/
MSG
Europe, Africa,
Middle East
3 km
0.05ox0.05o
2017-NRTdailyAccess HereData Server
LSASAF_MSG_ALBEDO-D10_MSG-Disk.png

MSG 10-day ALv2
MTALv2 [LSA-102.2]

Operational

SEVIRI/
MSG
Europe, Africa,
South America
3 km
0.05ox0.05o
2023-NRT10-dailyAccess HereData Server
LSASAF_MSG_ALBEDO-D10_MSG-Disk.png

MSG 10-day AL
MTAL [LSA-102]

Operational

SEVIRI/
MSG
Europe, Africa,
South America
3 km
0.05ox0.05o
2017-NRT10-dailyAccess Here

Data Server

LSASAF_MSG_ALBEDO-D10_MSG-Disk.png

MSG 10-day AL
Data Record

MTAL [LSA-150]

Data Record DOI

SEVIRI/
MSG
Europe, Africa,
South America
3 km
0.05ox0.05o
2005-NRT10-daily

Access Here

LSASAF_MSG-IODC_ALBEDO-D10_IODC-Disk.png

MSG-IODC
10-day AL
MTAL

Demonstration

SEVIRI/
MSG
Europe, Africa,
Middle East
3 km
0.05ox0.05o
2017-NRT10-dailyAccess Here

Data Server

HDF5_LSASAF_M01-AVHR_ETAL_GLOBE_201903050000.png

EPS AL
ETAL [LSA-103]

Operational

AVHRR/
Metop
Global1 km
0.01ox0.01o
2015-NRT10-daily

Access Here

Data Server