the value of coarse scale soil moisture observations for

the value of coarse scale soil moisture observations for

The Value of Coarse-Scale Soil Moisture Observations for ...

The Value of Coarse-Scale Soil Moisture Observations for Regional Surface Energy Balance Modeling

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Upscaling sparse ground-based soil moisture observations ...

characterized by relatively coarse scale soil moisture retrie-vals. The SMOS mission, for example, retrieves surface soil ... all soil moisture values are given in volumetric soil moisture fraction units or m3 m 3 ... point-scale soil moisture observation per 402 km2 area. This

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Estimating Spatial Sampling Errors in Coarse-Scale Soil ...

Estimating Spatial Sampling Errors in Coarse-Scale Soil Moisture Estimates Derived from Point-Scale Observations DIEGO G. MIRALLES,* WADE T. CROW, AND MICHAEL H. COSH USDA Agricultural Research Service, Hydrology and Remote Sensing Laboratory, Beltsville, Maryland

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Copula-Based Downscaling of Coarse-Scale Soil Moisture ...

to remotely sensed soil moisture observations and modeled soil moisture. However, in the current study, both data sources are not rescaled to a common spatial scale. Through condi-tioning the copula to a coarse-scale observation, a probability distribution function of expected soil moisture values at the

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Copula-based downscaling of coarse-scale soil moisture ...

Copula-based downscaling of coarse-scale soil moisture observations with implicit bias correction Niko E.C. Verhoest, Martinus Johannes Van Den Berg, Brecht Martens, Hans Lievens, Eric F. Wood, Ming Pan, Yann H. Kerr, Ahmad Al Bitar, Sat K. Tomer, Matthias Drusch, Hilde Vernieuwe, Bernard De Baets, Jeffrey P. Walker, Gift Dumedah, Valentijn R.N ...

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Copula-Based Downscaling of Coarse-Scale Soil Moisture ...

Copula-Based Downscaling of Coarse-Scale Soil Moisture Observations With Implicit Bias Correction. Sat Tomer. Related Papers. On the potential of MetOp ASCAT‐derived soil wetness indices as a new aperture for hydrological monitoring and prediction: a field evaluation over Luxembourg.

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Copula-Based Downscaling of Coarse-Scale Soil Moisture ...

Jan 08, 2015  IEEE Xplore, delivering full text access to the world's highest quality technical literature in engineering and technology. IEEE Xplore

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Integrating coarse-scale uncertain soil moisture data

fine-scale soil moisture content values predicted by the hydrological model. So, dif-ferent uncertainty representations of the field-averaged soil moisture content are to be considered. Therefore, in order to integrate a coarse-scale possibility distribution of 5 soil moisture content within a fine-scale modelling framework, a technique is ...

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Estimating Spatial Sampling Errors in Coarse-Scale Soil ...

Dec 01, 2010  Since the majority of the available ground-based soil moisture observations are from low-density networks in which one or two measurements are available per satellite footprint (T. J. Jackson 2010, personal communication), the direct comparison of ground networks to footprint-scale satellite soil moisture retrievals will yield mean-square ...

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(PDF) Mapping High Spatiotemporal-Resolution Soil Moisture ...

Jan 11, 2021  upscaling in situ soil moisture measurements to satellite footprint scale usi ng random forests. IEEE J. Sel. T op. Appl. Earth Obs. Remote Sens. 2017 , 10 , 2663–2673.

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Soil Moisture Drought.gov

Jun 08, 2021  Soil moisture plays an important role in agricultural monitoring, drought and flood forecasting, forest fire prediction, water supply management, and other natural resource activities. Soil moisture observations can forewarn of impending drought or flood conditions before other more standard indicators are triggered.

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Catchment scale soil moisture spatial–temporal variability ...

Feb 23, 2012  Estimating spatial sampling errors in coarse-scale soil moisture estimates derived from point-scale observations J. Hydrometeorol. , 11 ( 2010 ) , pp. 1423 - 1429 , 10.1175/2010JHM1285.1 View Record in Scopus Google Scholar

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A 3 km spatially and temporally consistent European daily ...

Apr 03, 2020  Coarse-resolution satellite derived soil moisture data were assimilated into the community land model (CLM3.5) using an ensemble Kalman filter scheme, producing a 3 km daily soil moisture ...

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Copula-based downscaling of coarse-scale soil moisture ...

Copula-based downscaling of coarse-scale soil moisture observations with implicit bias correction Niko EC Verhoest, Martinus Johannes van den Berg, Brecht Martens, Hans Lievens, Eric F Wood, Ming Pan, Yann Henry Kerr, Ahmad Al Bitar, Sat Kumar Tomer, Matthias Drusch, H Vernieuwe, Bernard De Baets, Jeffrey Walker , Gift Dumedah, Valentijn Rachel ...

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Regionalization of Coarse Scale Soil Moisture Products ...

remote sensing Letter Regionalization of Coarse Scale Soil Moisture Products Using Fine-Scale Vegetation Indices—Prospects and Case Study Mengyu Liang 1,*, Marion Pause 2, Nikolas Prechtel 2 and Matthias Schramm 3 1 Department of Geographical Sciences, University of Maryland–College Park, College Park, MD 20740, USA 2 Faculty of Environmental Sciences, TU Dresden, 01062 Dresden,

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Integrating coarse-scale uncertain soil moisture data

fine-scale soil moisture content values predicted by the hydrological model. So, dif-ferent uncertainty representations of the field-averaged soil moisture content are to be considered. Therefore, in order to integrate a coarse-scale possibility distribution of 5 soil moisture content within a fine-scale modelling framework, a technique is ...

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Copula-Based Downscaling of Coarse-Scale Soil Moisture ...

Copula-Based Downscaling of Coarse-Scale Soil Moisture Observations With Implicit Bias Correction June 2015 IEEE Transactions on Geoscience and Remote Sensing 53(6):3507-3521

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Soil Moisture Data Sets: Overview Comparison Tables ...

Sep 19, 2019  Similarly, observational data should not be used to validate the absolute value of soil moisture in a model, as they do not necessarily correspond – model soil moisture is the result of soil moisture change calculated as the residual of the water balance (cf. Koster and Milly 1997).

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Estimating Spatial Sampling Errors in Coarse-Scale Soil ...

Since the majority of the available ground-based soil moisture observations are from low-density networks in which one or two measurements are available per satellite footprint (T. J. Jackson 2010, personal communication), the direct comparison of ground networks to footprint-scale satellite soil moisture retrievals will yield mean-square ...

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(PDF) Deriving Field Scale Soil Moisture from Satellite ...

Nov 06, 2019  derive robust relationships between coarse-scale soil moisture products and high-r esolution ancillary variables using in-situ measurements. However, extensive in-situ observations

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Closing the Loop of Satellite Soil Moisture Estimation via ...

Nov 06, 2019  Scale invariance of simulated soil moisture and calibration of the downscaling algorithm. (a) Scale invariance analysis from l = 125 m to L = 32 km for a set of representative days of 2012, with ...

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(PDF) Upscaling In Situ Soil Moisture Observations To ...

Sep 07, 2015  Multiple parallel time series plot of 50 WATERNET soil moisture observations. The top-left panel shows the parallel multiple time series of soil moisture.

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Spatial Upscaling of Sparse Soil Moisture Observations ...

Jan 28, 2018  The Soil Moisture and Ocean Salinity (SMOS) products were in worse agreement with the upscaled SM and were inferior to the R value of the X-band SM of the Advanced Microwave Scanning Radiometer 2 ...

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Upscaling sparse ground‐based soil moisture observations ...

Jun 01, 2012  The contrast between the point‐scale nature of current ground‐based soil moisture instrumentation and the ground resolution (typically >102 km2) of satellites used to retrieve soil moisture poses a significant challenge for the validation of data products from current and upcoming soil moisture satellite missions. Given typical levels of observed spatial variability in soil moisture fields ...

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Towards soil property retrieval from space: An application ...

Mar 01, 2015  In addition to long-term in-situ soil moisture observations, this study utilizes a 1 km × 1 km resolution disaggregation of the SMOS soil moisture product, as opposed to a single value over its 40 km × 40 km footprint.The downscaled soil moisture data were obtained using a disaggregation method named DISPATCH (DISaggregation based on Physical And Theoretical scale CHange

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(PDF) Using data assimilation to optimize pedotransfer ...

May 10, 2021  ibrating the PTF using field-scale soil moisture observations. ... priately coarse. On the other hand, soil texture measurements. ... soil moisture values

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Regionalization of Coarse Scale Soil Moisture Products ...

remote sensing Letter Regionalization of Coarse Scale Soil Moisture Products Using Fine-Scale Vegetation Indices—Prospects and Case Study Mengyu Liang 1,*, Marion Pause 2, Nikolas Prechtel 2 and Matthias Schramm 3 1 Department of Geographical Sciences, University of Maryland–College Park, College Park, MD 20740, USA 2 Faculty of Environmental Sciences, TU Dresden, 01062 Dresden,

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Estimating Spatial Sampling Errors in Coarse-Scale Soil ...

Estimating Spatial Sampling Errors in Coarse-Scale Soil Moisture Estimates Derived from Point-Scale Observations Author: Miralles, Diego G., Crow, Wade T., Cosh, Michael H. Source: Journal of Hydrometeorology 2010 v.11 pp. 1423 ISSN: 1525-7541 Subject: microwave radiation, models, remote sensing, satellites, soil sampling, soil water Abstract:

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Application of observation operators for field scale soil ...

15 in situ point scale soil moisture measurements and coarse resolution remote sensing observations. 16 The two field study sites in this research work, AS1 and AS2, have permanent soil moisture sensors 17 installed near the outlet of the field scale watershed. The permanent sensors are part of the soil

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Soil moisture-runoff relation at the catchment scale as ...

studies, which investigated the possibility of using soil moisture observations for im-proving runoff prediction. Soil moisture scaling issues are addressed in Sect. 3 to lay the foundation for assessing the information contained in coarse resolution data. 15 The soil moisture retrieval technique based on ERS scatterometer data is explained in

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Characterizing Coarse-Scale Representativeness of in situ ...

might then be properly used as a reference for coarse scale mean soil moisture (Albergel et al., 2012; Jackson et al., 2010). Further studies investigated also the temporal stability of soil moisture in depth, indicating a correlation of soil moisture along the soil profile (Martínez-Fernández and Ceballos, 2003; Pachepsky et al.,

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Hillslope-scale soil moisture estimation with a physically ...

Soil moisture is a critical hydrosphere state variable that links the global water, energy, and carbon cycles. Knowledge of soil moisture at scales of individual hillslopes (10's to 100's of meters) is critical to advancing applications such as landslide prediction, rainfall-runoff modeling, and

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Copula-based downscaling of coarse-scale soil moisture ...

Furthermore, the remotely sensed soil moisture often does not reflect the climatology of the soil moisture predictions, and the bias between model predictions and observations needs to be removed. In this paper, a statistical framework is presented that allows for the downscaling of the coarse-scale SMOS soil moisture product to a finer resolution.

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Soil Moisture Remote Sensing: State‐of‐the‐Science ...

Jan 26, 2017  On the other hand, satellite footprint-scale soil moisture measurements may be coarse, and errors at the local scales of field, catchment, and watershed may propagate into inaccurate regional-scale hydrologic fluxes important for water resource assessment, agriculture, and

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Comparison of interpolation methods for soil moisture ...

Exploring the use of interpolation methods at a regional scale can provide valuable information on downscaling of the satellites soil moisture data from coarse to fine resolution (e.g. 36 to 1 km) based on ground station observations (Xu, 2019). The integration of soil moisture using SMC core samples, soil sensor networks, and remote sensing ...

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The impact of land surface temperature on soil moisture ...

3136 R. M. Parinussa et al.: The impact of land surface temperature on soil moisture anomaly detection Space Agency (ESA) launched the Soil Moisture and Ocean Salinity (SMOS) satellite, which is designed to retrieve sur-face soil moisture at coarse spatial resolution (40×40km) (Kerr et al., 2010). The upcoming National and Aeronau-

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NASA SPoRT-LiS Soil Moisture Products Drought.gov

The LIS soil moisture product is a long-term run of the Noah land surface model (LSM) that began on June 1, 2010, and is updated every 6 hours in real-time. The SPoRT-LIS provides unique, real-time soil moisture information at relatively high resolution (~3 km) compared to other operational sources.

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Improved large-scale hydrological modelling through the ...

flow and downscaled soil moisture observations leads to fur-ther improvement in streamflow simulations (20% reduction in RMSE). Furthermore, results show that the added contribution of data assimilation, for both soil moisture and streamflow, is more pronounced when the global meteorological data are used to force the models.

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