The Determination of Snow Albedo from Satellite Measurements Using Fast Atmospheric Correction Technique

Alexander Kokhanovsky; Jason E. Box; Baptiste Vandecrux; Kenneth Mankoff; Maxim Lamare; Alexander Smirnov; Michael Kern

doi:10.20944/preprints201911.0391.v1

Preprint Article Version 1 This version is not peer-reviewed

The Determination of Snow Albedo from Satellite Measurements Using Fast Atmospheric Correction Technique

Alexander Kokhanovsky ^* ,

Version 1 : Received: 29 November 2019 / Approved: 30 November 2019 / Online: 30 November 2019 (11:23:46 CET)

How to cite: Kokhanovsky, A.; Box, J.E.; Vandecrux, B.; Mankoff, K.; Lamare, M.; Smirnov, A.; Kern, M. The Determination of Snow Albedo from Satellite Measurements Using Fast Atmospheric Correction Technique. Preprints 2019, 2019110391 (doi: 10.20944/preprints201911.0391.v1). Kokhanovsky, A.; Box, J.E.; Vandecrux, B.; Mankoff, K.; Lamare, M.; Smirnov, A.; Kern, M. The Determination of Snow Albedo from Satellite Measurements Using Fast Atmospheric Correction Technique. Preprints 2019, 2019110391 (doi: 10.20944/preprints201911.0391.v1).

Abstract

We present a simplified atmospheric correction algorithm for the snow/ice albedo retrieval using single view satellite measurements. The validation of the technique is performed using Ocean and Land Colour Instrument (OLCI) on board Copernicus Sentinel - 3 satellite and ground spectral or broadband albedo measurements from locations on the Greenland ice sheet and in the French Alps. Through comparison with independent ground observations, the technique is shown to perform accurately in a range of conditions from a 2100 m elevation mid-latitude location in the French Alps to a network of 15 locations across a 2390 m elevation range in seven regions across the Greenland ice sheet. Retrieved broadband albedo is accurate within 5% over a wide (0.5) broadband albedo range of the (N = 4,155) Greenland observations and with no apparent bias.

Subject Areas

snow characteristics; optical remote sensing; snow albedo; PROMICE; Sentinel 3; OLCI; atmospheric correction; Arctic aerosol

Copyright: This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

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