MODIS 이미지를 이용한 지표특성에 따른 토양수분의 시･공간적 분포 특성
Characteristics of Soil Moisture Distributions at the Spatio-Temporal Scales Based on the Land Surface Features Using MODIS Images
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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.
Abstract
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.
참고문헌 (27)
- Bastiaanssen, W. G. M., "SEBAL-based sensible and latent heat fluxes in the irrigated Gediz Basin, Turkey", Journal of hydrology, 229(1), pp.87~100 (2000)
- Crow, W. T., "Potential for downscaling soil moisture maps derived from space borne imaging radar data", Journal of Geophysical Research, 105, pp.2203~2212 (2000)
- Donlon, C., "Sentinel-3 OLCI and SLSTR", Medspiration, 2008, ~
- Engman, T., "Application of microwave remote sensing of soil moisture for water resources and agriculture", Remote Sensing Environment, 35, pp.213~226 (1991)
- 곽용석, "청미천 유역 내 산림사면에서 단면선에 따른 토양수분특성의 공간적 계절적 변동", 한국농림기상학회지, 17(1), pp.45~57 (2015), 한국농림기상학회[DOI]
- 하림, "위성영상과 SEBAL 모형을 이용한 공간증발산량 산정 연구", 대한토목학회 논문집B, 30(3), pp.233~242 (2010), 대한토목학회
- 허유미, "생태수문 변화에 따른 토양수분의 영향 분석", 한국습지학회지, 13(2), pp.171~179 (2011), 한국습지학회
- 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, "IPCC", IPCC, 151~ (2014)
- 정종철, "USLE와 국가토지피복지도를 이용한 토양유실 추정", 환경영향평가, 25(6), pp.525~531 (2016), 한국환경영향평가학회[DOI]
- Kerr, Y. H., "Soil moisture retrieval from space:The soil moisture and ocean salinity (SMOS) mission", IEEE Transaction of Geoscience remote sensing, 39(8), pp.1729~1735 (2001)
- 김주훈, "한국토양유실량 및 토양유실위험 지역 분석", Spatial Information Research, 17(3), pp.261~268 (2009), 한국공간정보학회
- 김남신, "MODIS 위성영상을 이용한 식물계절의 변화와 공간적 분포 특징에 관한 연구", 한국환경복원기술학회지, 16(5), pp.59~69 (2013), 한국환경복원기술학회[DOI]
- 이지혜, "MODIS 위성 영상 기반의 일차생산성 알고리즘 입력 기상 자료의 신뢰도 평가: 미국 Corn belt 지역을 중심으로", 대한원격탐사학회지, 27(4), pp.481~494 (2011), 대한원격탐사학회
- Lee, J. H., "The Study about Reasonableness Assessment of Soil Erosion Load Computed using USLE Model", Master, pp.2011
- Merlin, O., "A combined modeling and multi-spectral", multi-resolution remote sensing approach for disaggregation of surface soil moisture:Application to SMOS configuration, 2005, pp.43(9), 2036~2050
- Merlin, O., "Disaggregation of SMOS soil moisture in sourheastern Australia", IEEE Transaction of Geoscience Remote Sensing, 50(5), pp.1556~1571 (2012)
- AMSR-E, "Aqua dail L3 surface soil moisture, interpretive parameter & QC EASE-Grids V002", Njoku, E., 2008
- 박찬원, "분포형 토양침식지도를 이용한 한강상류지역 토양유실 위험성 평가", 한국토양비료학회지(Korean Journal of Soil Science and Fertilizer), 43(6), pp.828~836 (2010), 한국토양비료학회
- 박찬원, "토양 특성 및 토지이용에 따른 낙동강 상류지역 토양침식위험성 평가", 한국토양비료학회지(Korean Journal of Soil Science and Fertilizer), 45(6), pp.890~896 (2012), 한국토양비료학회[DOI]
- 박종윤, "RCP 배출 시나리오와 SWAT 모형을 이용한 기후변화가 용담댐 유역의 수문요소에 미치는 영향 평가", 한국농공학회논문집, 56(3), pp.19~29 (2014), 한국농공학회
- Shin, Y., "Soil hydraulic properties in one-dimensional layered soil profile using layerspecific soil moisture assimilation scheme", Water Resources Research, 48, pp.1~15 (2012)
- 선우우연, "위성토양수분과 지점강우량을 이용한 지역 선행습윤조건 분석", 대한원격탐사학회지, 30(5), pp.587~596 (2014), 대한원격탐사학회[DOI]
- 신형진, "Terra MODIS 위성영상을 이용한 봄 가뭄 연구 - 소양강댐유역을 대상으로 -", 한국지리정보학회지, 18(4), pp.145~157 (2015), 한국지리정보학회[DOI]
- 신용철, "원격탐사자료를 이용한 시⋅공간적으로 분포되어 있는 토양수분산정 및 가뭄평가: (I) 토양수분", 한국물환경학회지, 32(1), pp.60~69 (2016), 한국물환경학회
- Van der Werf, H. M., "Evaluation of the environmental impact of agriculture at the farm level: a comparison and analysis of 12 indicator-based methods", Agriculture, Ecosystems & Environment, 93(1), pp.131~145 (2002)
- Wischmeier, W. H., "Predicting rainfall erosion losses, A Guide to Conservation Planning", The USDA Agricultural Handbook No.537, ~ (1978)
- 이용관, "Terra MODIS 위성영상과 SEBAL 모형을 이용한 공간증발산량 산정 연구 - 용담댐 유역을 대상으로 -", 한국지리정보학회지, 18(1), pp.90~104 (2015), 한국지리정보학회[DOI]