Estimating the soil moisture profile by assimilating near-surface observations with the ensemble Kaiman filter (EnKF)

2005 ◽  
Vol 22 (6) ◽  
pp. 936-945 ◽  
Author(s):  
Zhang Shuwen ◽  
Li Haorui ◽  
Zhang Weidong ◽  
Qiu Chongjian ◽  
Li Xin
Keyword(s):  
Soil Moisture ◽  
Moisture Profile ◽  
Near Surface ◽  
Kaiman Filter ◽  
Soil Moisture Profile ◽  
Surface Observations

scholarly journals Frozen soil parameterization in a distributed biosphere hydrological model

2009 ◽  
Vol 6 (6) ◽  
pp. 6895-6928
Author(s):  
L. Wang ◽  
T. Koike ◽  
K. Yang ◽  
R. Jin ◽  
H. Li
Keyword(s):  
Soil Moisture ◽  
Land Surface ◽  
Hydrological Model ◽  
Frozen Soil ◽  
Surface Radiation ◽  
Moisture Profile ◽  
Flood Peak ◽  
Radiation Fluxes ◽  
Soil Moisture Profile ◽  
The Web

Abstract. In this study, a frozen soil parameterization has been modified and incorporated into a distributed biosphere hydrological model (WEB-DHM). The WEB-DHM with the frozen scheme was then rigorously evaluated in a small cold area, the Binngou watershed, against the in-situ observations from the WATER (Watershed Allied Telemetry Experimental Research). In the summer 2008, land surface parameters were optimized using the observed surface radiation fluxes and the soil temperature profile at the Dadongshu-Yakou (DY) station in July; and then soil hydraulic parameters were obtained by the calibration of the July soil moisture profile at the DY station and by the calibration of the discharges at the basin outlet in July and August that covers the annual largest flood peak of 2008. The calibrated WEB-DHM with the frozen scheme was then used for a yearlong simulation from 21 November 2007 to 20 November 2008, to check its performance in cold seasons. Results showed that the WEB-DHM with the frozen scheme has given much better performance than the WEB-DHM without the frozen scheme, in the simulations of soil moisture profile at the DY station and the discharges at the basin outlet in the yearlong simulation.

Retrieval of soil moisture profile by combined C-band scatterometer data and a surface hydrological model

2000 ◽  
Author(s):  
Claudia Notarnicola ◽  
Angelo C. D'Alessio ◽  
Francesco Posa ◽  
Vincenzo Sabatelli ◽  
Domenico Casarano
Keyword(s):  
Soil Moisture ◽  
Hydrological Model ◽  
Moisture Profile ◽  
Soil Moisture Profile
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