Premium
Impact of SST reanalyzed using OGCM on weather simulation: A case of a developing cyclone in the Japan Sea area
Author(s) -
Yamamoto Masaru,
Hirose Naoki
Publication year - 2007
Publication title -
geophysical research letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 2.007
H-Index - 273
eISSN - 1944-8007
pISSN - 0094-8276
DOI - 10.1029/2006gl028386
Subject(s) - mesoscale meteorology , climatology , sea surface temperature , environmental science , precipitable water , cyclone (programming language) , tropical cyclone , satellite , meteorology , precipitation , atmospheric sciences , geology , geography , field programmable gate array , aerospace engineering , computer science , computer hardware , engineering
It is difficult to estimate high‐resolution sea surface temperature (SST) distributions in coastal areas under cloudy and rainy weather conditions. This study makes use of dynamical estimates of SST produced by combining satellite measurements into an eddy‐resolving ocean general circulation model (OGCM). The reanalyzed SST provides an improved surface boundary condition for mesoscale atmospheric simulations. We examined a developing cyclone passing over the Japan Sea in comparative experiments undertaken using reanalyzed and satellite‐measured SSTs. Mesoscale features of the SSTs resulting from ocean dynamics influence the development of the cyclone. In particular, the surface turbulent heat flux, precipitable water, and cloud water are sensitive to the difference between the two sets of SSTs. In these experiments, the simulation results obtained using the reanalyzed SST data are more similar to observed data than the results obtained using satellite‐measured SST.