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Measurements of Erythemal Irradiance near Davis Station, Antarctica: Effect of Inhomogeneous Surface Albedo

Citation

Smolskaia, I and Nunez, M and Michael, KJ, Measurements of Erythemal Irradiance near Davis Station, Antarctica: Effect of Inhomogeneous Surface Albedo, Geophysical Research Letters, 26, (10) pp. 1381-1384. ISSN 0094-8276 (1999) [Refereed Article]

DOI: doi:10.1029/1999GL900190

Abstract

To examine effects of inhomogeneous surface albedo on UV irradiance, measurements were taken near Davis Station (68.58° S, 77.97° E), East Antarctica during November/December 1997. Data were collected in transects perpendicular to an ice/water boundary, while one instrument continuously measured at the ice edge. Irradiances along transects were normalised by coincident measurements at the ice edge. Systematic differences in downwelling irradiance near the ice edge were observed over the highly reflective surface and open water. For cloudless conditions, the relative change in irradiance reached limiting values of about +5% from the ice edge to a point 2.5 km over snow-covered ice, and about -5% from the ice edge to a point 2.5 km over water. In overcast conditions, higher relative changes were observed (about +30% from the ice edge to a point 2.5 km over ice on 17 November 1997) with no sign of a constant relative change being reached. Copyright 1999 by the American Geophysical Union.

Item Details

Item Type:Refereed Article
Research Division:Earth Sciences
Research Group:Atmospheric Sciences
Research Field:Atmospheric Sciences not elsewhere classified
Objective Division:Expanding Knowledge
Objective Group:Expanding Knowledge
Objective Field:Expanding Knowledge in the Physical Sciences
Author:Smolskaia, I (Dr Irina Smolskaia)
Author:Nunez, M (Dr Manuel Nunez)
Author:Michael, KJ (Dr Kelvin Michael)
ID Code:16678
Year Published:1999
Web of Science® Times Cited:28
Deposited By:IASOS
Deposited On:1999-08-01
Last Modified:2000-06-07
Downloads:0

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