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Proceedings Paper

Cloud cover effects on physical soil temperatures with buried targets
Author(s): Zenon Derzko; Oanh Nguyen; Chung Phan; Richard Lydic; J. Thomas Broach; Timothy Moore
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Paper Abstract

Cloud cover affects direct and diffuse solar radiation and IR downwelling, and the values for these 3 components are calculated using measured meterological data and varying the values of cloud cover and cloud type using algorithms from the literature. The effects of these 3 transient forcing function components on surface, subsurface and target interior temperatures are studied in this work. The cloud cover effects are isolated from the varying multi-day diurnal cycles by repeating the meteorological data for 1 day. Cloud cover is a subgrid variable and hence, is often reported as 0 or 100%. This study includes a comparison of the effects of these two cloud cover values on a single geographical location for 6 days, with each day repeating the meterological conditions of day 1. This work involves using predictions from the Countermine Computational Test Bed (CTB), a 3D finite element model that accounts for coupled heat and moisture transfer in soil and targets.

Paper Details

Date Published: 10 May 2012
PDF: 8 pages
Proc. SPIE 8357, Detection and Sensing of Mines, Explosive Objects, and Obscured Targets XVII, 83570L (10 May 2012); doi: 10.1117/12.918468
Show Author Affiliations
Zenon Derzko, U.S. Army Night Vision & Electronic Sensors Directorate (United States)
Oanh Nguyen, U.S. Army Night Vision & Electronic Sensors Directorate (United States)
Chung Phan, U.S. Army Night Vision & Electronic Sensors Directorate (United States)
Richard Lydic, U.S. Army Night Vision & Electronic Sensors Directorate (United States)
J. Thomas Broach, U.S. Army Night Vision & Electronic Sensors Directorate (United States)
Timothy Moore, U.S. Army Night Vision & Electronic Sensors Directorate (United States)


Published in SPIE Proceedings Vol. 8357:
Detection and Sensing of Mines, Explosive Objects, and Obscured Targets XVII
J. Thomas Broach; John H. Holloway, Editor(s)

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