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Don Cline, Simon Yueh, Bruce Chapman, Boba Stankov, Al Gasiewski, Dallas Masters, Kelly Elder, Richard Kelly, Thomas H. Painter, Steve Miller, Steve Katzberg, and Larry Mahrt

characteristics ( Fig. 2 ). b. Airborne Visible/Infrared Imaging Spectrometer The NASA Jet Propulsion Laboratory’s (JPL) AVIRIS measures reflected radiance in 224 spectral bands across the wavelength range 0.4–2.5 μ m with a 1 Mrad field of view. The AVIRIS acquisitions over the CLPX mesocell study area had 7.5-km swaths and 100-km lengths ( Painter 2002 ). Initially, the AVIRIS data will be converted to apparent surface reflectance using the High-Accuracy Atmospheric Correction for Hyperspectral Data (HATCH

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Janet Hardy, Robert Davis, Yeohoon Koh, Don Cline, Kelly Elder, Richard Armstrong, Hans-Peter Marshall, Thomas Painter, Gilles Castres Saint-Martin, Roger DeRoo, Kamal Sarabandi, Tobias Graf, Toshio Koike, and Kyle McDonald

size becomes more important. Radars operating in the Ku-band contain the most information about the internal features of a dry snowpack; however, in a wet snowpack, the surface reflection dominates and ground return is insignificant. Radars operating at lower frequencies (C-band) are preferable for achieving the necessary penetration through a wet snowpack. i. Biophysical activity in trees The NASA Jet Propulsion Laboratory (JPL) monitored biophysical activity in six selected trees with

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Robert E. Davis, Thomas H. Painter, Rick Forster, Don Cline, Richard Armstrong, Terry Haran, Kyle McDonald, and Kelly Elder

Research Investment Fund, Cardiff University. A portion of this work was conducted at the Jet Propulsion Laboratory at the California Institute of Technology, under contract to NASA. More than 200 people participated in the planning and execution of CLPX 2002/03. Their efforts are very much appreciated. We would also like to thank the two anonymous and thorough reviewers who helped to improve the manuscript. REFERENCES Brodzik, M. J. , 2003a : CLPX-satellite: SSM/I brightness temperature grids

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Glen E. Liston, Daniel L. Birkenheuer, Christopher A. Hiemstra, Donald W. Cline, and Kelly Elder

Development Agency of Japan (NASDA); the Japan Science and Technology Corporation; and the National Assembly for Wales, Strategic Research Investment Fund. A portion of this work was conducted at the Jet Propulsion Laboratory at the California Institute of Technology, which was under contract to NASA. More than 200 people participated in the planning and execution of CLPX 2002/03. Their efforts are very much appreciated. The authors would also like to thank Stan Benjamin, John McGinley, and Richard

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Kelly Elder, Angus Goodbody, Don Cline, Paul Houser, Glen E. Liston, Larry Mahrt, and Nick Rutter

Service Rocky Mountain Research Station; the National Space Development Agency of Japan (NASDA); the Japan Science and Technology Corporation; and the National Assembly for Wales, Strategic Research Investment Fund, Cardiff University. A portion of this study was conducted at the Jet Propulsion Laboratory at the California Institute of Technology, under a contract to NASA. More than 200 people participated in the planning and execution of CLPX 2002/03. Their efforts are very much appreciated. Special

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Kelly Elder, Don Cline, Glen E. Liston, and Richard Armstrong

Office of Global Programs, the U.S. Army Corps of Engineers Civil Works Remote Sensing Research Program; the U.S. Army Basic Research Program; the U.S. Forest Service Rocky Mountain Research Station (RMRS); the National Space Development Agency of Japan (NASDA); the Japan Science and Technology Corporation; the National Assembly for Wales, Strategic Research Investment Fund, Cardiff University. A portion of this study was conducted at the Jet Propulsion Laboratory at the California Institute of

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Jicheng Liu, Curtis E. Woodcock, Rae A. Melloh, Robert E. Davis, Ceretha McKenzie, and Thomas H. Painter

, Cardiff, South Glamorgan, United Kingdom. A portion of this work was conducted at the Jet Propulsion Laboratory at the California Institute of Technology, under contract to the National Aeronautics and Space Administration NASA. We would also like to thank Thomas Berry of ERDC/Vicksburg for collecting GPS locations of our forest stands and Stephen Miller of Johnson, Kunkel and Associates, Inc. for information on the specifications of the lidar. This work was supported by U.S. Army Contract DACA42-03-C

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