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학술연구/단체지원/교육 등 연구자 활동을 지속하도록 DBpia가 지원하고 있어요.
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연구자들이 자신의 연구와 전문성을 널리 알리고, 새로운 협력의 기회를 만들 수 있는 네트워킹 공간이에요.
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In this study, we analyzed the impacts of land surface characteristics on spatially and temporally distributed soil moisture values at the Yongdam and Soyang-river dam watersheds in 2014 and 2015. The soil moisture, NDVI (Normalized Difference Vegetation Index) and temperature values at the spatio-temporal scales were estimated using satellite-based MODIS (MODerate Resolution Imaging Spectroradiometer) products. Then the Pearson correlations between soil moisture and land surface characteristics (NDVI, temperature and DEM-digital elevation model) were estimated and analyzed, respectively. Overall, the monthly soil moisture values at the time step were highly influenced by the precipitation amounts. Also, the results showed that the soil moisture has the strong correlation with DEM while the temperature was inversely correlated with the soil moisture. However the monthly correlations between NDVI and soil moisture were highly varied along the time step. These findings indicated that water loss near the land surface are highly occurred by soil and plant activities as evapotranspiration and infiltration during the no/less precipitation period. But the high precipitation amounts reduce the impacts of land surface characteristics because of saturated condition of land surface. Thus these results demonstrated that soil moisture values are highly correlated with land surface characteristics. Our findings can be useful for water resources/environmental management, agricultural drought, etc.
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등록된 정보가 없습니다.
참고문헌 (27)
참고문헌 신청
Bastiaanssen, W. G. M. / 2000 / SEBAL-based sensible and latent heat fluxes in the irrigated Gediz Basin, Turkey / Journal of hydrology 229 (1) : 87 ~ 100
Crow, W. T. / 2000 / Potential for downscaling soil moisture maps derived from space borne imaging radar data / Journal of Geophysical Research 105 : 2203 ~ 2212
Donlon, C. / 2008 / Sentinel-3 OLCI and SLSTR / Medspiration/GlobColour symposium
Engman, T. / 1991 / Application of microwave remote sensing of soil moisture for water resources and agriculture / Remote Sensing Environment 35 : 213 ~ 226
IPCC / 2014 / Climate Change 2014: Synthesis Report. Contribution of Working Groups I, II and III to the Fifth Assessment Report of the Intergovernmental Panel on Climate Change : 151 ~
Crow, W. T. / 2000 / Potential for downscaling soil moisture maps derived from space borne imaging radar data / Journal of Geophysical Research 105 : 2203 ~ 2212
Donlon, C. / 2008 / Sentinel-3 OLCI and SLSTR / Medspiration/GlobColour symposium
Engman, T. / 1991 / Application of microwave remote sensing of soil moisture for water resources and agriculture / Remote Sensing Environment 35 : 213 ~ 226
IPCC / 2014 / Climate Change 2014: Synthesis Report. Contribution of Working Groups I, II and III to the Fifth Assessment Report of the Intergovernmental Panel on Climate Change : 151 ~
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