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The martian surface UV environment: theoretical modelling and in-situ measurements

Patel, M. R.; Zarnecki, J. C. and Towner, M. C. (2002). The martian surface UV environment: theoretical modelling and in-situ measurements. In: The Evolving Sun and its Influence on Planetary Environments, ASP Conference Series, Vol. 269, 2002, 2002.

URL: http://www.aspbooks.org/publications/269/289.pdf
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Abstract

The UV environment on planetary surfaces is of extreme importance in a wide range of scientific disciplines, from meteorological considerations to the viability of biological organisms. Presented here is theoretical modelling for the transmission of ultraviolet radiation (190-400nm) through the martian atmosphere for a variety of possible cases, resulting in surface spectra. Knowledge of the UV transmission gives in-sight into how significant dust presence on Mars interacts with incoming solar radiation, and also yields information on the effect of biologically damaging UV-C on organisms and organic products on the surface. Surface fluxes are calculated using a radiative transfer approximation, for a range of dust loading and ozone abundance. Effects of direct and diffuse illuminance are also highlighted.

In-situ measurements of the UV flux will be possible for the first time onboard the Beagle 2 probe, scheduled to land on Mars in 2003. The instrument will measure the flux at five passbands in the UV, and also measure the total UV dose between 200-400nm throughout the mission lifetime.

Item Type: Conference Item
Copyright Holders: 2002 Astronomical Society of the Pacific
Project Funding Details:
Funded Project NameProject IDFunding Body
Not SetNot SetPPARC
Extra Information: ISBN: 1-58381-109-5
Academic Unit/Department: Science > Physical Sciences
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Interdisciplinary Research Centre: Centre for Earth, Planetary, Space and Astronomical Research (CEPSAR)
Related URLs:
Item ID: 32062
Depositing User: Patricia Taylor
Date Deposited: 15 Feb 2012 10:00
Last Modified: 15 Feb 2012 10:00
URI: http://oro.open.ac.uk/id/eprint/32062
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