수문ㆍ식생 모사를 위한 지표모델의 동아시아 적용 타당성 분석

Title
수문ㆍ식생 모사를 위한 지표모델의 동아시아 적용 타당성 분석
Authors
김연주
Issue Date
2010-11-30
Publisher
한국환경정책·평가연구원
Series/Report No.
Working Paper : 2010-04
Page
24 p.
URI
http://repository.kei.re.kr/handle/2017.oak/19521
Language
한국어
Abstract
Preliminary evaluation of the land surface model coupled to the dynamic vegetation model over East Asia In this study, we would like to evaluate the performance of the land surface model in East Asia and seek for possible suggestions to improve the model performance. Using the Community Land Model version 4 (CLM4), we performed two sets of numerical experiments; one without the dynamic vegetation module (SV) and the other with the dynamic vegetation module (DV). Our results follow in the below. 1) Compared to the MODIS products between 2000 and 2008, the DV run overestimated the Leaf Area Index (LAI) and Gross Primary Production (GPP) by 100% and 37%, respectively. 2) Comparing the GPP and Net Primpary Prooduction (NPP) between the DV run and MODIS, it was suggested that the autotrophic respiration was overestimated. 3) Also, the evapotranspiration was overestimated compared to the MODIS. 4) The DV results from 1948 to 2008 showed the decreasing trend in the carbon sequestration by the ecosystem. This attributed to the fact that the increase in temperature resulted in the increase in GPP and also the further increase in the soil decomposition. Furthermore, we reviewed the parameterization for the photosynthesis and respiration processes in order to identify possible parameterization to be re-visited for the model improvement.

Table Of Contents


제1장·서 론
1. 연구 배경 및 목적
2. 연구 내용
제2장·동아시아 기후, 수문, 식생 특성
제3장·지면모형의 동아시아 적용
1. 지면모형 개요
2. 지면모형 실험
가. 실험 방법
나. 단기(2000~2008) 결과 분석
다. 장기(1948~2008) 결과 분석
3. 모형 결과 향상을 위한 제안
제4장·요약 및 제안
참고 문헌
Abstract

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