HR: 1340h
AN: GC33A-0944    [Abstracts]
TI: Radiation Exchanges at the Atmosphere-Vegetation Canopy Boundary Layer Based on Unmanned Aerial Vehicle Observations
AU: * Dim, J R
EM: dim@ceres.cr.chiba-u.ac.jp
AF: JST-SORST/Center for Environmental Remote Sensing (CEReS), Chiba University, 1-33 Yayoi-Cho, Inage-Ku, Chiba, 263-8522, Japan
AU: Kajiwara, K
EM: kkaji@faculty.chiba-u.jp
AF: Center for Environmental Remote Sensing (CEReS), Chiba University, 1-33 Yayoi-Cho, Inage-Ku, Chiba, 263-8522, Japan
AU: Honda, Y
EM: yhonda@ceres.cr.chiba-u.ac.jp
AF: Center for Environmental Remote Sensing (CEReS), Chiba University, 1-33 Yayoi-Cho, Inage-Ku, Chiba, 263-8522, Japan
AB: Radiation exchanges at the vegetation boundary layer, regulating the amount of energy received by the vegetation canopy are examined through remote sensing observations carried out by an unmanned helicopter, flying according to pre-programmed plans, above a forested area. Information obtained from the laser scanning system, radiometric measurements and aerial photographs are combined to ambient meteorological parameters in order to examine interactions between leaf characteristics, elements of vegetation structure, and the surrounding atmosphere. A vegetation mass transfer model showing variable dependencies of leaf water content, leaf temperature, leaf-air vapor-pressure differences and solar radiation intensity as well as canopy structure is used to discuss transpiration mechanisms of the studied forest.
DE: 0762 Mass balance (1218, 1223)
DE: 1218 Mass balance (0762, 1223, 1631, 1836, 1843, 3010, 3322, 4532)
DE: 1223 Ocean/Earth/atmosphere/hydrosphere/cryosphere interactions (0762, 1218, 3319, 4550)
DE: 3319 General circulation (1223)
DE: 6952 Radar atmospheric physics (1220)
SC: Global Environmental Change [GC]
MN: 2007 Fall Meeting