2004 Volume 48 Pages 307-312
Effectiveness of distributed rainfall information by weather radar was investigated through runoff analyses with a distributed runoff model and radar information., To achieve this purpose, actual rainfall distribution and virtual basin model are used in runoff simulation using a distributed runoff model by developing a method ofvirtually extending a small actual basin. As results, we found as followed;
Effectiveness of distributed rainfall information is different between rainfall by front and Typhoon.
up-scaling beyond size of basin brings vital error in hydrograph.
method of up-scaling also brings vital error in hydrograph.
location of up-scaled mesh is also bring vital error in hydrograph.
utilization of hourly rainfall brings same degree of error by spatial up-scaling of 13km.
