dc.contributor.author | Gutowski, William J. | |
dc.contributor.author | Otieno, Francis O. | |
dc.contributor.author | Arritt, Raymond W. | |
dc.contributor.author | Takle, Eugene S. | |
dc.contributor.author | Pan, Zaitao | |
dc.date.accessioned | 2013-06-20T09:31:06Z | |
dc.date.available | 2013-06-20T09:31:06Z | |
dc.date.issued | 2004 | |
dc.identifier.citation | Regional Climate Simulation. J. Hydrometeor, 5, 230–242. | en |
dc.identifier.uri | http://journals.ametsoc.org/doi/abs/10.1175/1525-7541%282004%29005%3C0230%3ADAAOAS%3E2.0.CO%3B2 | |
dc.identifier.uri | http://erepository.uonbi.ac.ke:8080/xmlui/handle/123456789/36689 | |
dc.description.abstract | Precipitation from a 10-yr regional climate simulation is evaluated using three complementary analyses: self-organizing maps, bias scores, and arithmetic bias. Collectively, the three reveal a precipitation deficit in the south-central United States that emerges in September and lingers through February. Deficient precipitation for this region and time of year is also evident in other simulations, indicating a generic problem in climate simulation.
Analysis of terrestrial and atmospheric water balances shows that the 10-yr average precipitation error for the region results primarily from a deficit in horizontal water vapor convergence. However, the 10-yr average for fall only suggests that the primary contributor is a deficit in evapotranspiration. Evaluation of simulated temperature and soil moisture suggests the model has insufficient terrestrial water for evaporation during fall. Results for winter are mixed; errors in both evapotranspiration and lateral moisture convergence may contribute substantially to the precipitation deficit. The model reproduces well both the time-average and time-filtered large-scale circulation, implying that the moisture convergence error arises from an error in simulating mesoscale circulation. | en |
dc.language.iso | en | en |
dc.publisher | Univesity of Nairobi | en |
dc.title | Diagnosis and Attribution of a Seasonal Precipitation Deficit in a U.S. Regional Climate Simulation | en |
dc.type | Article | en |
local.publisher | Department of Medicine | en |