气候变化领域集成服务门户(CCPortal): High-resolution mapping of in-depth soil moisture content through a laboratory experiment coupling a spectroradiometer and two hyperspectral cameras

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DOI	10.1016/j.rse.2019.111533
	High-resolution mapping of in-depth soil moisture content through a laboratory experiment coupling a spectroradiometer and two hyperspectral cameras
	Bablet A.; Viallefont-Robinet F.; Jacquemoud S.; Fabre S.; Briottet X.
发表日期	2020
ISSN	00344257
卷号	236
英文摘要	A laboratory experiment is set up to study both surface and in-depth soil moisture content (SMC). For that purpose, an aquarium is filled successively with two soils, a clay loam and a sand. Reflectance spectra are acquired in the solar domain (400–2400 nm) on the soil surface using an ASD FieldSpec 3 HR spectroradiometer and in-depth through the aquarium glass wall using two hyperspectral cameras. Successive amounts of water ranging from low to heavy rainfall in a temperate region are uniformly poured into the aquarium. The MARMITforSMC method based on the MARMIT (MultilAyer Radiative Transfer Model for soIl reflecTance) model is applied to each reflectance spectrum to determine gravimetric SMC. In particular, vertical profiles of SMC are provided with unprecedented spatial accuracy (~0.287 mm). The results are compared with volumetric SMC measured by two time-domain reflectometry (TDR) sensors. The in-depth SMC image produced on the sand shows lower values within the first 2 cm (5%) than below (17%). In contrast, the SMC image produced on the clay loam shows evenly distributed values whatever the position in the aquarium, even 1 h after moistening. The difference in grain size between the soils explains this result. © 2019 Elsevier Inc.
英文关键词	High-resolution water vertical profile; Hyperspectral remote sensing; MARMIT model; Soil moisture content
语种	英语
来源期刊	Remote Sensing of Environment
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/179576
作者单位	ONERA/DOTA, Université de Toulouse, 2 avenue Edouard Belin, BP 74025, Toulouse Cedex 4, 31055, France; Université de Paris, Institut de physique du globe de Paris, CNRS, F-75005 Paris, France
推荐引用方式 GB/T 7714	Bablet A.,Viallefont-Robinet F.,Jacquemoud S.,et al. High-resolution mapping of in-depth soil moisture content through a laboratory experiment coupling a spectroradiometer and two hyperspectral cameras[J],2020,236.
APA	Bablet A.,Viallefont-Robinet F.,Jacquemoud S.,Fabre S.,&Briottet X..(2020).High-resolution mapping of in-depth soil moisture content through a laboratory experiment coupling a spectroradiometer and two hyperspectral cameras.Remote Sensing of Environment,236.
MLA	Bablet A.,et al."High-resolution mapping of in-depth soil moisture content through a laboratory experiment coupling a spectroradiometer and two hyperspectral cameras".Remote Sensing of Environment 236(2020).