| Title |
Application of Common Land Model in the Nakdong River Basin, Korea for Simulation of Runoff and Land Surface Temperature |
| Authors |
이건행 ( Keon Haeng Lee ) ; 최현일 ( Hyun Il Choi ) ; 권현한 ( Hyun Han Kwon ) ; 김상단 ( Sang Dan Kim ) ; 정유진 ( Eu Gene Chung ) ; 김경현 ( Kyung Hyun Kim ) |
| Keywords |
Common Land Model; Land Surface Model; Land surface temperature; Runoff |
| Abstract |
A grid based configuration of Land Surface Models (LSMs) coupled with a climate model can be advantageous in impact assessment of climate change for a large scale area. We assessed the applicability of Common Land Model(CoLM) to runoff and land surface temperature (LST) simulations at the domain that encompasses the Nakdong river basin. To establish a high resolution model configuration of a 1km * 1km grid size, both surface boundary condition and atmospheric inputs from the ob served weather data in 2009 were adjusted to the same resolution. The Leaf Area Index (LAI) was collected from MODerate resolution Imaging Spectroradiometer (MODIS) and the downward short wave flux was produced by a nonstationary multi site weather state model. Compared with the observed runoffs at the stations on Nakdong river, simulated runoffs properly responded to rainfall. The spatial features and the seasonal variations of the domain fairly well were captured in the simulated LSTs as well. The monthly and seasonal trend of LST were described well compared to the observations, however, the monthly averaged simulated LST exceeded the observed up 2 at the 24 stations. From the results of our study, it is shown that high resolution LSMs can be used to evaluate not only quantity but also quality of water resources as it can capture the geographical fcatures of the area of interest and its rainfall runoff response. |