Results 201 to 210 of about 81,236 (257)

Topographic Wetness Index calculation guidelines based on measured soil moisture and plant species composition.

Science of the Total Environment, 2020
Soil moisture controls environmental processes and species distributions, but it is difficult to measure and interpolate across space. Topographic Wetness Index (TWI) derived from digital elevation model is therefore often used as a proxy for soil ...
M. Kopecký, M. Macek, J. Wild
semanticscholar   +1 more source

Soil moisture sensing with commodity RFID systems

ACM SIGMOBILE International Conference on Mobile Systems, Applications, and Services, 2020
Intelligent irrigation based on measurements of soil moisture levels in every pot in a greenhouse can not only improve plant productivity and quality but also save water.
Ju Wang, Liqiong Chang, S. Aggarwal, Omid Salehi-Abari, Srinivasan Keshav   +4 more
semanticscholar   +1 more source

Soil moisture experiment in the Luan River supporting new satellite mission opportunities

, 2020
The Soil Moisture Experiment in the Luan River (SMELR) was conducted from 2017 to 2018 in the semi-arid Luan River watershed located in the North of China.
T. Zhao, Jiancheng Shi, Liqing Lv, Hongxin Xu, Deqing Chen, Qian Cui, T. Jackson, G. Yan, L. Jia, Liangfu Chen, K. Zhao, Xingming Zheng, Limin Zhao, Chaolei Zheng, Dabin Ji, C. Xiong, Tianxing Wang, Rui-juan Li, Jinmei Pan, Jianguang Wen, Chaoying Yu, Yaomin Zheng, Lingmei Jiang, L. Chai, Hui Lu, Panpan Yao, Jianwei Ma, H. Lv, Jianjun Wu, Wei Zhao, Na Yang, P. Guo, Yuxia Li, Lu Hu, Deyuan Geng, Ziqian Zhang   +35 more
semanticscholar   +1 more source

Influence of changes in rainfall and soil moisture on trends in flooding

Journal of Hydrology, 2019
Despite the expectation that increases in rainfall with climatic change will result in increases in pluvial flooding, there is more historical evidence for decreases in flood magnitude.
C. Wasko, R. Nathan
semanticscholar   +1 more source

Downscaling SMAP soil moisture estimation with gradient boosting decision tree regression over the Tibetan Plateau

Remote Sensing of Environment, 2019
The Soil Moisture Active Passive (SMAP) satellite can no longer directly deliver high-resolution (9 km) soil moisture products with the failure of the onboard L-band radar. Thus, an appropriate replacement sensor and new algorithms are urgently needed to
Zushuai Wei, Yizhuo Meng, Wen Zhang, Jian Peng, L. Meng   +4 more
semanticscholar   +1 more source

Time-Series Retrieval of Soil Moisture Using CYGNSS

IEEE Transactions on Geoscience and Remote Sensing, 2019
Time-series retrievals of soil moisture obtained from the Cyclone Global Navigation Satellite System (CYGNSS) constellation are presented. The retrieval approach assumes that vegetation and roughness changes occur on timescales longer than those ...
Mohammad M. Al-Khaldi, J. Johnson, A. O'Brien, A. Balenzano, F. Mattia   +4 more
semanticscholar   +1 more source

A new drone-borne GPR for soil moisture mapping

Remote Sensing of Environment, 2019
We present a new drone-borne ground-penetrating radar (GPR) for soil moisture mapping. The GPR system is lightweight, \textless 1.5 kg, and consists of a vector network analyzer (VNA) as frequency-domain radar, a hybrid horn-dipole antenna operating in ...
Kaijun Wu, Gabriela Arambulo Rodriguez, Marjana Zajc, Elodie Jacquemin, Michiels Clément, A. Coster, S. Lambot   +6 more
semanticscholar   +1 more source

Development of soil moisture indices from differences in water absorption between shortwave-infrared bands

Isprs Journal of Photogrammetry and Remote Sensing, 2019
Soil moisture (SM) controls the exchange of water and heat energy between the land surface and the atmosphere through evaporation and plant transpiration, and timely and accurate estimates of soil moisture are crucial for many studies.
Jibo Yue, Jia Tian, Q. Tian, Kaijian Xu, Nianxu Xu   +4 more
semanticscholar   +1 more source

Ground observation-based analysis of soil moisture spatiotemporal variability across a humid to semi-humid transitional zone in China

Journal of Hydrology, 2019
Little measurement-based soil moisture information is available for the humid to semi-humid transitional zones in China. Anhui Province is a representative area of these zones and spans several hydroclimatic and geomorphological zones.
Ke Zhang, Qing-qing Wang, L. Chao, Jin-yin Ye, Zhijia Li, Zhongbo Yu, Tao Yang, Q. Ju   +7 more
semanticscholar   +1 more source

Regions of Strong Coupling Between Soil Moisture and Precipitation

Science, 2004
Previous estimates of land-atmosphere interaction (the impact of soil moisture on precipitation) have been limited by a lack of observational data and by the model dependence of computational estimates.
R. Koster, P. Dirmeyer, Zhichang Guo, G. Bonan, Edmond Chan, P. Cox, C. T. Gordon, S. Kanae, E. Kowalczyk, D. Lawrence, Ping Liu, Cheng-Hsuan Lu, S. Malyshev, B. Mcavaney, K. Mitchell, D. Mocko, T. Oki, K. Oleson, A. Pitman, Y. Sud, C. Taylor, D. Verseghy, R. Vasic, Y. Xue, T. Yamada   +24 more
semanticscholar   +1 more source