Search Results - "PHILPOT, WILLIAM"

Relationship between surface soil water content, evaporation rate, and water absorption band depths in SWIR reflectance spectra by Tian, Jia, Philpot, William D.

“…The spectral reflectance of three soil samples – selected to represent a range of particle size distribution, texture, and drying characteristics – was…”
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A linear physically-based model for remote sensing of soil moisture using short wave infrared bands by Sadeghi, Morteza, Jones, Scott B., Philpot, William D.

“…Technological advances in satellite remote sensing have offered a variety of techniques for estimating surface soil water content as a key variable in numerous…”
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Temporal stability and spatial dependency of pixel-specific red-NIR soil lines from multi-temporal satellite remote sensing imagery by Yoshino, Kunihiko, D. Philpot, William

“…The temporal stability and spatial dependence of pixel-specific red-NIR soil line coefficients were studied using analyses of geostatistics and covariance. We…”
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Full-Season Crop Phenology Monitoring Using Two-Dimensional Normalized Difference Pairs by Longchamps, Louis, Philpot, William

“…The monitoring of crop phenology informs decisions in environmental and agricultural management at both global and farm scales. Current methodologies for crop…”
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Soil moisture content estimate with drying process segmentation using shortwave infrared bands by Tian, Jia, Yue, Jibo, Philpot, William D., Dong, Xinyu, Tian, Qingjiu

“…Soil moisture content (SMC) has been widely focused and studied in various fields of research, including atmosphere-land water/energy exchange, drought, and…”
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Soil directioal (biconical) reflectance in the principal plane with varied illumination angle under dry and saturated conditions by Tian, Jia, Philpot, William D

“…Change in directional (biconical) spectral reflectance was monitored for three soil samples under air dry and saturated conditions in the laboratory. The…”
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Using airborne bathymetric lidar to detect bottom type variation in shallow waters by Wang, Chi-Kuei, Philpot, William D.

“…The shape and amplitude of the bathymetric lidar waveforms (the recorded time history of the reflected lidar pulses) contain information about the attenuation…”
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Assessing the potential of MODIS/Terra version 5 images to improve near shore lake bathymetric surveys by Ayana, Essayas K, Philpot, William D, Melesse, Assefa M, Steenhuis, Tammo S

“…Estimation of storage volume of inland water bodies is made using bathymetric surveys. Such surveys are often terminated far inward from shores due to…”
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Characterizing temporal vegetation dynamics of land use in regional scale of Java Island, Indonesia by Setiawan, Yudi, Yoshino, Kunihiko, Philpot, William D.

“…Improving the understanding of land use and land cover is a major research challenge for the human-environmental sciences and is essential for many aspects of…”
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Land-Water Interface Resolved from Airborne LIDAR Bathymetry (ALB) Waveforms by Pe'eri, Shachak, Morgan, Lynnette V, Philpot, William D, Armstrong, Andrew A

“…Airborne light detection and ranging (LIDAR) bathymetry (ALB) is an efficient remote-sensing technique for shallow-water mapping using green-channel waveforms…”
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Recognition of whole-landscape changes due to extreme rain events in a hyperarid desert by Olivares, Lester, Jordan, Teresa E., Philpot, William D., Lohman, Rowena B.

“…Infrequent extreme rain events in extraordinarily dry environments can dramatically shape the landscape. Here, a change-detection method is demonstrated that…”
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A derivative-aided hyperspectral image analysis system for land-cover classification by Fuan Tsai, Philpot, W.D.

“…The large number of spectral bands in hyperspectral data seriously complicates their use for classification. Selection of a useful subset of bands or derived…”
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Evaluation of atmospheric correction using bi-temporal hyperspectral images by Moses, Wesley J, Philpot, William D

“…Atmospheric correction of hyperspectral image data is frequently a requirement for using remote sensing to understand and quantify various phenomena that take…”
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Spectral Transmittance of a Translucent Sand Sample With Directional Illumination by Tian, Jia, Philpot, William

“…The nadir transmittance of sand samples was monitored as the illumination direction moved from 0° to 70°. Measurements were made for high- and low-density…”
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Spectral Discrimination Of Soil Types And Sparse Vegetation by Philpot, William D.

“…Simple spectral measures can be effective in delineating useful image details, but can be frustratingly resistant to differentiating subtle differences. For…”
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Soil directional (biconical) reflectance in the principal plane with varied illumination angle under dry and saturated conditions by Tian, Jia, Philpot, William D.

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ND-space: Normalized difference spectral mapping by Philpot, William, Jacquemoud, Stéphane, Tian, Jia

“…Identification of materials based on spectral reflectance is confounded by variations in reflectance magnitude that are independent of the spectral shape…”
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VNAI-NDVI-space and polar coordinate method for assessing crop leaf chlorophyll content and fractional cover by Yue, Jibo, Tian, Jia, Philpot, William, Tian, Qingjiu, Feng, Haikuan, Fu, Yuanyuan

“…•Our method focuses on fractional cover (fc) and chlorophyll content (CC).•Confounding effect of fc and CC is well analyzed in VNAI-NDVI-space.•Polar…”
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Simultaneous estimation of fractional cover of photosynthetic and non-photosynthetic vegetation using visible-near infrared satellite imagery by Tian, Jia, Zhang, Zhichao, Philpot, William D., Tian, Qingjiu, Zhan, Wenfeng, Xi, Yanbiao, Wang, Xiaoqiong, Zhu, Cuicui

“…In vegetation-abundant ecosystems, accurate fractional cover estimation of multiple targets, including non-photosynthetic vegetation (NPV), photosynthetic…”
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Evaluating suitability of MODIS-Terra images for reproducing historic sediment concentrations in water bodies: Lake Tana, Ethiopia by Kaba, Essayas, Philpot, William, Steenhuis, Tammo

“…Government and NGO funded conservation programs are being implemented in developing countries with the potential benefit of reduced sediment inflow into fresh…”
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