ON THE RETRIEVAL ACCURACY OF THE ALBEDO AND BRF FIELDS: POTENTIAL OF THE LSPIM/PRISM-SENSOR

Joint Research Centre

Description

SPACE APPLICATIONS INSTITUTE ON THE RETRIEVAL ACCURACY OF THE ALBEDO AND BRF FIELDS: POTENTIAL OF THE LSPIM/PRISM-SENSOR by Peter Vogt, Michel M. Verstraete, Bernard Pinty, Massimo Menenti, Augusto Caramagno, Michael Rast 0=180' 60 -40 -20 0 20 40 60 0 = 0° [-1.4% ^ Δ BRF á 2.2%] Aalbedo = -0.28% I JOINT RESEARCH I CENTRE EUR 19016 EN EUROPEAN COMMISSION 1999 Caption: Retrieval accuracy in percent of the BRF field and the hemi­spherical albedo in the RED spectrum derived from directional BRF mea­surements (red squared dot) for a simulated orbit of the PRISM sensor. The surface type is Steppe with a solar zenith angle of θ0 = 45° (cross). The black iso-lines refer to the the BRF retrieval error distribution with a step size of ΔΟ.5%. The white dashed circles indicate the observer zenith angle at 30° and 60°. The minimum and maximum BRF deviation is given in brackets. These results are based on an analysis of noisy data, as described on page 6. SPACE APPLICATIONS INSTITUTE ON THE RETRIEVAL ACCURACY OF THE ALBEDO AND BRF FIELDS: POTENTIAL OF THE LSPIM/PRISM-SENSOR Peter Vogt* Michel M.

Sujets

• Sciences et techniques

Informations

• Publié par: JOINT-RESEARCH-CENTRE
• Nombre de lectures: 18
• Langue: English
• Poids de l'ouvrage: 4 Mo

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