Revision of ground albedo estimation in Heliosat scheme for deriving solar radiation from SEVIRI HRV channel of Meteosat satellite

J. Polo, Luis Martin Pomare Pomares, M. Cony

Research output: Contribution to journalArticle

13 Citations (Scopus)

Abstract

Methodologies for computing ground albedo from geostationary satellite images are investigated within the framework of models for deriving solar radiation components from satellite information. A revision of Heliosat-3 approach for determining ground albedo and its implication in the cloud index estimation is done using two close pixels of quite different reflectivity in the Nile delta surroundings in Egypt. The analysis done has revealed that the way in which Heliosat-3 approaches the ground albedo and especially its dependence with the viewing angle is not very precise when dealing with high reflective sites. A simple method for fitting, individually for every pixel, the angular dependence and the ground albedo estimations is proposed here and applied to different points in the Mediterranean area. The results of the revised method show rather good estimations of ground albedo in every kind of terrain in terms of reflectivity. These results are translated to cloud index estimations and finally to surface solar irradiance and they show improvements in solar radiation estimation over high reflective pixels.

Original languageEnglish
Pages (from-to)275-282
Number of pages8
JournalSolar Energy
Volume86
Issue number1
DOIs
Publication statusPublished - Jan 2012
Externally publishedYes

Fingerprint

Solar radiation
Satellites
Pixels
Geostationary satellites

Keywords

  • Albedo
  • MSG
  • SEVIRI
  • Solar radiation

ASJC Scopus subject areas

  • Renewable Energy, Sustainability and the Environment
  • Materials Science(all)

Cite this

Revision of ground albedo estimation in Heliosat scheme for deriving solar radiation from SEVIRI HRV channel of Meteosat satellite. / Polo, J.; Martin Pomare Pomares, Luis; Cony, M.

In: Solar Energy, Vol. 86, No. 1, 01.2012, p. 275-282.

Research output: Contribution to journalArticle

@article{436ebebb02dc49d6b41491ec4639c886,
title = "Revision of ground albedo estimation in Heliosat scheme for deriving solar radiation from SEVIRI HRV channel of Meteosat satellite",
abstract = "Methodologies for computing ground albedo from geostationary satellite images are investigated within the framework of models for deriving solar radiation components from satellite information. A revision of Heliosat-3 approach for determining ground albedo and its implication in the cloud index estimation is done using two close pixels of quite different reflectivity in the Nile delta surroundings in Egypt. The analysis done has revealed that the way in which Heliosat-3 approaches the ground albedo and especially its dependence with the viewing angle is not very precise when dealing with high reflective sites. A simple method for fitting, individually for every pixel, the angular dependence and the ground albedo estimations is proposed here and applied to different points in the Mediterranean area. The results of the revised method show rather good estimations of ground albedo in every kind of terrain in terms of reflectivity. These results are translated to cloud index estimations and finally to surface solar irradiance and they show improvements in solar radiation estimation over high reflective pixels.",
keywords = "Albedo, MSG, SEVIRI, Solar radiation",
author = "J. Polo and {Martin Pomare Pomares}, Luis and M. Cony",
year = "2012",
month = "1",
doi = "10.1016/j.solener.2011.09.030",
language = "English",
volume = "86",
pages = "275--282",
journal = "Solar Energy",
issn = "0038-092X",
publisher = "Elsevier Limited",
number = "1",

}

TY - JOUR

T1 - Revision of ground albedo estimation in Heliosat scheme for deriving solar radiation from SEVIRI HRV channel of Meteosat satellite

AU - Polo, J.

AU - Martin Pomare Pomares, Luis

AU - Cony, M.

PY - 2012/1

Y1 - 2012/1

N2 - Methodologies for computing ground albedo from geostationary satellite images are investigated within the framework of models for deriving solar radiation components from satellite information. A revision of Heliosat-3 approach for determining ground albedo and its implication in the cloud index estimation is done using two close pixels of quite different reflectivity in the Nile delta surroundings in Egypt. The analysis done has revealed that the way in which Heliosat-3 approaches the ground albedo and especially its dependence with the viewing angle is not very precise when dealing with high reflective sites. A simple method for fitting, individually for every pixel, the angular dependence and the ground albedo estimations is proposed here and applied to different points in the Mediterranean area. The results of the revised method show rather good estimations of ground albedo in every kind of terrain in terms of reflectivity. These results are translated to cloud index estimations and finally to surface solar irradiance and they show improvements in solar radiation estimation over high reflective pixels.

AB - Methodologies for computing ground albedo from geostationary satellite images are investigated within the framework of models for deriving solar radiation components from satellite information. A revision of Heliosat-3 approach for determining ground albedo and its implication in the cloud index estimation is done using two close pixels of quite different reflectivity in the Nile delta surroundings in Egypt. The analysis done has revealed that the way in which Heliosat-3 approaches the ground albedo and especially its dependence with the viewing angle is not very precise when dealing with high reflective sites. A simple method for fitting, individually for every pixel, the angular dependence and the ground albedo estimations is proposed here and applied to different points in the Mediterranean area. The results of the revised method show rather good estimations of ground albedo in every kind of terrain in terms of reflectivity. These results are translated to cloud index estimations and finally to surface solar irradiance and they show improvements in solar radiation estimation over high reflective pixels.

KW - Albedo

KW - MSG

KW - SEVIRI

KW - Solar radiation

UR - http://www.scopus.com/inward/record.url?scp=84855198535&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=84855198535&partnerID=8YFLogxK

U2 - 10.1016/j.solener.2011.09.030

DO - 10.1016/j.solener.2011.09.030

M3 - Article

VL - 86

SP - 275

EP - 282

JO - Solar Energy

JF - Solar Energy

SN - 0038-092X

IS - 1

ER -