OZONE VARIABILITY ASSESSMENT FOR UV SENSORS

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Authors
  1. Krzeminska, H.B.
  2. Lowe, R.P.
  3. Hutt, D.
Corporate Authors
Defence Research Establishment Valcartier, Valcartier QUE (CAN);Institute for Space and Terrestrial Science, North York ONT (CAN);University of Western Ontario, London ONT (CAN) Dept of Physics and Astronomy
Abstract
High concentrations of tropospheric ozone can severely limit the performance of Missile Approach Warning Systems (MAWS) operating in the ultraviolet solar-blind wavelength region from 240 to 280 nm. The transmission over a 1 km horizontal path at 260 nm in the centre of the solar-blind region varies by a factor of 6 over the range of surface ozone values which occurs naturally. As a result, the surface ozone concentration is the most significant unknown in modelling ultraviolet concentration. Dramatic variations in surface ozone can occur between adjacent geographic locations and on time scales ranging from minutes to months. Estimates of surface ozone are needed for making meaningful simulations of missile signatures, in modelling MAWS performance and in evaluating candidate MAWS. Forecasts of ozone concentration can be used as a component of real-time threat assessment in the field. The report summarizes the available information on the sources and sinks of ozone in the troposphere, its geographic distribution, its seasonal and diurnal variation and the range of variability. Approaches to estimating and forecasting surface ozone are also discussed.
Keywords
SBUV (Solar Blind ultraviolet);Ozone variability;Surface ozone
Report Number
DREV-CR-932 — Contractor Report (Final)
Date of publication
31 Mar 1997
Number of Pages
178
DSTKIM No
97-03799
CANDIS No
503815
Format(s):
Hardcopy;Document Image stored on Optical Disk

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