메뉴 건너뛰기
.. 내서재 .. 알림
소속 기관/학교 인증
인증하면 논문, 학술자료 등을  무료로 열람할 수 있어요.
한국대학교, 누리자동차, 시립도서관 등 나의 기관을 확인해보세요
(국내 대학 90% 이상 구독 중)
로그인 회원가입 고객센터 ENG
주제분류

추천
검색

논문 기본 정보

자료유형
학술저널
저자정보
저널정보
한국농공학회 한국농공학회논문집 한국농공학회논문집 제61권 제5호
발행연도
2019.1
수록면
89 - 99 (11page)

이용수

표지
📌
연구주제
📖
연구배경
🔬
연구방법
🏆
연구결과
AI에게 요청하기
추천
검색

이 논문의 연구 히스토리 (4)

초록· 키워드

오류제보하기
In this study, we estimated the spatially-distributed soil moisture at the high resolution (10 m×10 m) using the satellite-based Sentinel-1A/B SAR(Synthetic Aperture Radar) sensor images. The Sentinel-1A/B raw data were pre-processed using the SNAP (Sentinel Application Platform) tool providedfrom ESA (European Space Agency), and then the pre-processed data were converted to the backscatter coefficients. The regression equations werederived based on the relationships between the TDR (Time Domain Reflectometry)-based soil moisture measurements and the converted backscattercoefficients. The TDR measurements from the 51 RDA (Rural Development Administration) monitoring sites were used to derive the regressionequations. Then, the soil moisture values were estimated using the derived regression equations with the input data of Sentinel-1A/B based backscattercoefficients. Overall, the soil moisture estimates showed the linear trends compared to the TDR measurements with the high Pearson’s correlations (morethan 0.7). The Sentinel-1A/B based soil moisture values matched well with the TDR measurements with various land surface conditions (bare soil, crop,forest, and urban), especially for bare soil (R: 0.885∼0.910 and RMSE: 3.162∼4.609). However, the Mandae-ri (forest) and Taean-eup (urban) sitesshowed the negative correlations with the TDR measurements. These uncertainties might be due to limitations of soil surface penetration depths of SARsensors and complicated land surface conditions (artificial constructions near the TDR site) at urban regions. These results may infer that qualities ofSentinel-1A/B based soil moisture products are dependent on land surface conditions. Although uncertainties exist, the Sentinel-1A/B basedhigh-resolution soil moisture products could be useful in various areas (hydrology, agriculture, drought, flood, wild fire, etc.).

목차

등록된 정보가 없습니다.

참고문헌 (14)

참고문헌 신청

함께 읽어보면 좋을 논문

논문 유사도에 따라 DBpia 가 추천하는 논문입니다. 함께 보면 좋을 연관 논문을 확인해보세요!

이 논문의 저자 정보

최근 본 자료

전체보기

댓글(0)

0