Journal ArticleDOI
Relating soil surface moisture to reflectance
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In this article, the relationship between the normalized soil reflectance and moisture was investigated, and it was shown that for low soil moisture levels, the reflectance decreased when the moisture increased.About:
This article is published in Remote Sensing of Environment.The article was published on 2002-08-01. It has received 388 citations till now. The article focuses on the topics: Soil classification & Soil type.read more
Citations
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Book ChapterDOI
Visible and Near Infrared Spectroscopy in Soil Science
TL;DR: A review on the state of soil visible-near infrared (vis-NIR) spectroscopy is provided in this article, focusing on important soil attributes such as soil organic matter (SOM), minerals, texture, nutrients, water, pH, and heavy metals.
Journal ArticleDOI
Satellite remote sensing applications for surface soil moisture monitoring: A review
Lingli Wang,John J. Qu +1 more
TL;DR: A comprehensive review of the progress in remote sensing of soil moisture, with focus on technique approaches for soil moisture estimation from optical, thermal, passive microwave, and active microwave measurements is presented in this paper.
Journal ArticleDOI
Estimating fractional cover of photosynthetic vegetation, non-photosynthetic vegetation and bare soil in the Australian tropical savanna region upscaling the EO-1 Hyperion and MODIS sensors.
Juan Pablo Guerschman,Michael J. Hill,Luigi J. Renzullo,Damian Barrett,Alan Marks,Elizabeth J. Botha,Elizabeth J. Botha +6 more
TL;DR: In this article, a spectral library compiled from field campaigns in 2005 and 2006, together with three EO-1 Hyperion scenes acquired during the 2005 growing season were used to explore the spectral response space for f(PV, f(NPV), f(NBAR) and f(BS) across the -2 million km(2) Australian tropical savanna zone with hyperspectral and multispectral imagery.
Journal ArticleDOI
NMDI: A normalized multi-band drought index for monitoring soil and vegetation moisture with satellite remote sensing
Lingli Wang,John J. Qu +1 more
TL;DR: The Normalized Multi-band Drought Index (NMDI) as mentioned in this paper uses the difference between two liquid water absorption channels centered at 1640 nm and 2130 nm as the soil and vegetation moisture sensitive band.
Journal ArticleDOI
Surface soil moisture retrievals from remote sensing: Current status, products & future trends
TL;DR: It is evident from this review that there is potential for more accurate estimation of SMC exploiting EO technology, particularly so, by exploring the use of synergistic approaches between a variety of EO instruments.
References
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Journal ArticleDOI
A simplex method for function minimization
John A. Nelder,R. Mead +1 more
TL;DR: A method is described for the minimization of a function of n variables, which depends on the comparison of function values at the (n 41) vertices of a general simplex, followed by the replacement of the vertex with the highest value by another point.
Journal ArticleDOI
On the spatial pattern of soil nutrients in desert ecosystems
TL;DR: In this article, the authors examined the spatial distribution of soil nutrients in desert ecosystems of the southwestern United States to test the hypothesis that the invasion of semiarid grasslands by desert shrubs is associated with the development of "islands of fertility" under shrubs.
Journal ArticleDOI
The Near Infrared Absorption Spectrum of Liquid Water
J. A. Curcio,Charles C. Petty +1 more
TL;DR: In this paper, the near infrared absorption spectrum of liquid water at 20°C was investigated using a PbS cell detector system and the total spectral range investigated was from 0.70 to 2.50μ.
Journal ArticleDOI
Reflection of radiant energy from soils
S. A. Bowers,R. J. Hanks +1 more
TL;DR: In this article, the authors show that surface moisture content, organic matter, and particle size strongly influence the reflectance and absorptance of solar radiant energy by soils, and apply the kaolinite reflectance data to Gates' direct solar energy distribution curve, one would expect energy absorption to increase by at least an additional 14.6 percent of that in the incident beam when the particle size is increased from 22 mu to 2650 mu.
Journal ArticleDOI
Simultaneous Determination of Moisture, Organic Carbon, and Total Nitrogen by Near Infrared Reflectance Spectrophotometry
Ram C. Dalal,Robert J Henry +1 more
TL;DR: In this article, the authors used an infraAlyzer 500 C (Technicon Instruments Corp.) scanning spectrophotometer to obtain near infrared reflectance of soils at 2-nm intervals.