Estimation of soil water conditions using passive microwave remote sensing

Autor: Ramata Magagi, Yann Kerr, Jean-Pierre Wigneron
Přispěvatelé: Département de Géomatique appliquée, Sherbrooke University, Centre d'études spatiales de la biosphère (CESBIO), Institut de Recherche pour le Développement (IRD)-Université Toulouse III - Paul Sabatier (UT3), Université Fédérale Toulouse Midi-Pyrénées-Université Fédérale Toulouse Midi-Pyrénées-Observatoire Midi-Pyrénées (OMP), Université Fédérale Toulouse Midi-Pyrénées-Centre National d'Études Spatiales [Toulouse] (CNES)-Centre National de la Recherche Scientifique (CNRS), Interactions Sol Plante Atmosphère (ISPA), Institut National de la Recherche Agronomique (INRA)-Ecole Nationale Supérieure des Sciences Agronomiques de Bordeaux-Aquitaine (Bordeaux Sciences Agro), Département de géomatique appliquée [Sherbrooke] (UdeS), Université de Sherbrooke (UdeS), Centre National de la Recherche Scientifique (CNRS)-Institut de Recherche pour le Développement (IRD)-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE)-Université Toulouse III - Paul Sabatier (UT3), Université Fédérale Toulouse Midi-Pyrénées-Université Fédérale Toulouse Midi-Pyrénées-Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire Midi-Pyrénées (OMP), Météo France-Centre National d'Études Spatiales [Toulouse] (CNES)-Université Fédérale Toulouse Midi-Pyrénées-Centre National de la Recherche Scientifique (CNRS)-Institut de Recherche pour le Développement (IRD)-Météo France-Centre National d'Études Spatiales [Toulouse] (CNES)-Centre National de la Recherche Scientifique (CNRS), Interactions Sol Plante Atmosphère (UMR ISPA)
Jazyk: angličtina
Rok vydání: 2016
Předmět:
sol nu
010504 meteorology & atmospheric sciences
Field experiment
télédétection
0211 other engineering and technologies
Climate change
02 engineering and technology
Astrophysics::Cosmology and Extragalactic Astrophysics
température de brillance
01 natural sciences
donnée satellite
Physics::Geophysics
remote sensing
Evapotranspiration
humidité du sol
Water cycle
microondes passives
[SDU.STU.HY]Sciences of the Universe [physics]/Earth Sciences/Hydrology
Water content
021101 geological & geomatics engineering
0105 earth and related environmental sciences
rugosité de surface
2. Zero hunger
Hydrology
modélisation du climat
15. Life on land
météorologie
Physics::Classical Physics
6. Clean water
Infiltration (hydrology)
13. Climate action
Soil water
Environmental science
Surface runoff
[SPI.SIGNAL]Engineering Sciences [physics]/Signal and Image processing
Zdroj: Land Surface Remote Sensing in Continental Hydrology
Land Surface Remote Sensing in Continental Hydrology, ISTE Ltd, 2016, 9781785481048
Land Surface Remote Sensing in Continental Hydrology, ISTE Ltd, 2016, 9781785481048. ⟨10.1016/B978-1-78548-104-8.50002-4⟩
DOI: 10.1016/B978-1-78548-104-8.50002-4⟩
Popis: The water content of soil, or soil moisture, is a key element in several fields, such as hydrology, meteorology, agriculture, and forestry. This statement is explained by the determining role of soil moisture in the processes (infiltration, runoff, evaporation, etc.) governing the water cycle and the global energy balance. This role has resulted in the recognition of soil moisture as an essential climate variable by the Global Climate Observing System (GCOS). However, as a result of its dependence on several factors, the spatial and temporal variability of soil moisture is very complex. In addition to precipitation and evapotranspiration, it is linked to surface characteristics such as the type of soil and vegetation, the topography, the surface roughness and so on. In order to analyze the variability of soil moisture, dense network stations for soil moisture observation have been temporarily installed during short field campaigns, among them the Cold Land Processes Field Experiment (CLPX) in northern Colorado, the Soil Moisture Experiment in 2002 (SMEX02) in Iowa, the Canadian Experiment for Soil Moisture in 2010 (CanEx-SM10) and the SMAP Validation Experiment in 2012 (SMAPVEX12) in the Canadian Prairies. For continuous soil moisture data, the installation of dense networks capable of providing historical series of soil moisture is ideal, but expensive. As a result, the International Soil Moisture Network has been developed through international cooperation in order to put together and archive in a database soil moisture measurements collected during field campaigns, and to make this database available to researchers. At the watershed or regional scale, hydrological models are used as an alternative for determining soil moisture. At the global scale, information about soil moisture can be obtained from passive or active microwave satellite measurements. In an effort to help soil moisture users, a database of soil moisture estimated at the global scale from passive and active microwave satellites has been developed as part of the Climate Change Initiative (CCI) program launched in 2010.
Databáze: OpenAIRE
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