NAME =  Sachinobu ISHIDA  
ORGANIZATION =  Department of Earth and Environmental Sciences, Hirosaki University  
ADDRESS =  Bunkyo-cho 3, Hirosaki, Aomori 036-8561  
COUNTRY =  Japan  
PHONE =  +81-172-39-3621  
FAX =  +81-172-39-3621  
E-MAIL =  ishida@cc.hirosaki-u.ac.jp  
POSTER_ONLY =  no  
THEME =  T1  
DATE =  09-Aug-04-11:10:47  
ABSID = T1SI09Aug04111047 
TITLE = Surface Heat Balance using Flux Measurement Array during Catch A Plume by SATs (CAPS) IOP 
AUTHOR_1 = Sachinobu ISHIDA 
INSTITUTION_1 = Department of Earth and Environmental Sciences, Hirosaki University 
PRESENTER = AUTHOR_1 
AUTHOR_2 = Kenji TANAKA 
INSTITUTION_2 = Disaster Prevention Research Institute, Kyoto University 
AUTHOR_3 = Atsushi HIGUCHI 
INSTITUTION_3 = Hydrospheric Atmospheric Research Center, Nagoya University 
AUTHOR_4 = Ichiro TAMAGAWA 
INSTITUTION_4 = River Basin Research Center, Gifu University 
AUTHOR_5 = Dai MATUSHIMA 
INSTITUTION_5 = Graduate school of Science, Tohoku University 
AUTHOR_6 = CAPS2002-2003 observation group 
INSTITUTION_6 = Many Affiliations 
ABSTRACT = The intensive meteorological observation, CAPS (Catch A Plume by SATs), was carried out twice over postharvest paddy field in northern Shiga prefecture, JAPAN in 2002, 2003. The objective of this project is to understand 1) the distribution of the sensible heat flux over homogeneous surface, and 2) it's influence for surface heat balance; 3) the behavior of the plume, which affects the temporal and spatial distribution of the sensible heat flux. The SATs array and the scintillometers were installed to measure the heterogeneity of the heat flux, with other instruments to complete the surface energy balance. Also surface temperature images were taken by the infrared camera from airplane. And the upper ABL sounding was held using a radio sonde, two SODARs and a lidar. This study is focused on the objective 1) and 2). In CAPS2002, the distance of each SAT was O(100m), and the array was extended 500x1500m horizontally using 16 SATs. The heat balance closure ratio was about 60%. The difference between max. and min. sensible heat flux was almost equal to the random error, and was about 30% of mean flux (77W/m^2) during 9-15 local time in clear condition, and the difference seems to be correspond to the surface temperature distribution. But this difference still does not explain the absence of heat. In CAPS2003, the distance of each SAT was O(10m), and the array was extended 100x200m horizontally using 17 SATs. The difference ratio of the sensible heat flux was smaller than CAPS2002. And the heat balance closure ratio was about 100% by averaging data of the multiple measurement sites.