Lingmei Jiang

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This project proposed an embedded system for automatic mist irrigation for cardamom field, which has a wireless sensor network for real time infield sensing and control of an irrigation system. This wireless system supports the cardamom field which has both plain and slope areas. Too much watering causes diseases to cardamom. This system provides uniform(More)
A physically based bare-surface soil moisture inversion technique for application with passive microwave satellite measurements, including the Advanced MicrowaveScanning Radiometer—Earth Observing System, Special Sensor Microwave/Imager, Scanning Multichannel Microwave Radiometer, and Tropical Rainfall Measuring Mission Microwave Imager, was developed in(More)
Snow water equivalent (SWE) is one of the key parameters for many applications in climatology, hydrology, and water resource planning and management. Satellite-based passive microwave sensors have provided global, long-term observations that are sensitive to SWE. However, the complexity of the snowpack makes modeling the microwave emission and inversion of(More)
Ground surface freeze–thaw cycles caused by changes in solar radiation have a great impact on soil–air water heat exchanges due to the phase transition of pore water. This influence should not be ignored in the land surface process and global environment change studies because of its large extent and the rapid changes in daily and seasonal frozen ground.(More)
1)Center for Earth Observation and Digital Earth, Chinese Academy of Sciences, Beijing 100190, China, (Email: ybqiu@ceode.ac.cn) 2) Institute for Computational Earth System Science, University of California, Santa Barbara, CA 93106-3060, USA 3) Finnish Meteorological Institute (FMI), Arctic Research Centre, Tähteläntie 62, FI-99600 Sodänkylä, Finland 4)(More)
Knowledge about the surface soil water content is essential because it controls the surface water dynamics and land– atmosphere interaction. In high mountain areas in particular, soil surface water content controls infiltration and flood events. Although satellite-derived surface soil moisture data from passive microwave sensors are readily available for(More)