Results 31 to 40 of about 6,146,845 (296)

Estimation of soil moisture using multispectral and FTIR techniques

open access: yesEgyptian Journal of Remote Sensing and Space Sciences, 2015
Soil moisture is a key capricious in hydrological process, the accessibility of moisture content in soil reins the mechanism amid the land surface and atmospheric progression.
Syed Muhammad Zubair Younis, Javed Iqbal
doaj   +1 more source

Using data assimilation to optimize pedotransfer functions using field-scale in situ soil moisture observations [PDF]

open access: yesHydrology and Earth System Sciences, 2021
Soil moisture predictions from land surface models are important in hydrological, ecological, and meteorological applications. In recent years, the availability of wide-area soil moisture measurements has increased, but few studies have combined model ...
E. Cooper   +6 more
doaj   +1 more source

The Effect of Surface Soil Moisture on Heat Balance at a Bare Soil Surface

open access: yesJournal of Japan Society of Hydrology and Water Resources, 1994
Surface soil moisture content, surface heat fluxes and meteorological data were measured simultaneously on a bare field to investigate the effect of surface soil moisture on the heat balance at a bare soil surface. A simple heat balance model for a bare soil surface was constructed, including empirical expressions of parameters (albedo, atmospheric ...
FUKUMOTO, Masato, HIROTA, Tomoyoshi
openaire   +2 more sources

The effect of the top soil layer on moisture and evaporation dynamics

open access: yesVadose Zone Journal, 2020
Understanding the effect of the top soil layer on surface evaporation and water distribution is critical to modeling hydrological systems. However, the dependency of near‐surface soil moisture and fluxes on layering characteristics remains unclear.
Zhen Li   +2 more
doaj   +1 more source

Using lagged dependence to identify (de)coupled surface and subsurface soil moisture values [PDF]

open access: yesHydrology and Earth System Sciences, 2018
Recent advances in radar remote sensing popularized the mapping of surface soil moisture at different spatial scales. Surface soil moisture measurements are used in combination with hydrological models to determine subsurface soil moisture values ...
C. D. U. Carranza   +2 more
doaj   +1 more source

Evaluation of European Land Data Assimilation System (ELDAS) products using in site observations [PDF]

open access: yes, 2008
Three land-surface models with land-data assimilation scheme (DA) were evaluated for one growing season using in situ observations obtained across Europe. To avoid drifts in the land-surface state in the models, soil moisture corrections are derived from
Viterbo, P.   +10 more
core   +1 more source

Comparing the Assimilation of SMOS Brightness Temperatures and Soil Moisture Products on Hydrological Simulation in the Canadian Land Surface Scheme

open access: yesRemote Sensing, 2020
Soil moisture is a key variable used to describe water and energy exchanges at the land surface/atmosphere interface. Therefore, there is widespread interest in the use of soil moisture retrievals from passive microwave satellites. In the assimilation of
Manoj K. Nambiar   +5 more
doaj   +1 more source

Reconstruction of Global Long-Term Gap-Free Daily Surface Soil Moisture from 2002 to 2020 Based on a Pixel-Wise Machine Learning Method

open access: yesRemote Sensing, 2023
Global, long-term, gap-free, high quality soil moisture products are extremely important for hydrological monitoring and climate change research. However, soil moisture products produced from satellite observations have data gaps due to the limited ...
Pei Mi, Chaolei Zheng, Li Jia, Yu Bai
doaj   +1 more source

Role of soil moisture-atmosphere feedback during high temperature events in 2002 over Northeast Eurasia

open access: yesProgress in Earth and Planetary Science, 2018
In summer 2002, abnormally high-temperature events and associated low soil moisture conditions were observed in Northeast Eurasia. In this study, two regional climate model experiments, one with and the other without soil moisture–atmosphere interaction,
Enkhbat Erdenebat, Tomonori Sato
doaj   +1 more source

ESTIMATION OF SOIL MOISTURE AND EARTH’S SURFACE TEMPERATURE USING LANDSAT-8 SATELLITE DATA [PDF]

open access: yesThe International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2019
Soil moisture estimation is essential for optimal water and soil resources management. Surface soil moisture is an important variable in the natural water cycle, which plays an important role in the global equilibrium of water and energy due to its ...
M. Entezari, A. Esmaeily, S. Niazmardi
doaj   +1 more source

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