Results 21 to 30 of about 11,195 (191)

Drought impact on cropland use monitored with AVIRIS imagery in Central Valley, California.

open access: yesScience of the Total Environment, 2022
During 2012-2016 California experienced the longest and most severe drought in the last centuries. This water scarcity led to an increase in non-cultivated croplands during this period.
J. L. Pancorbo, M. Quemada, D. Roberts
semanticscholar   +1 more source

Automated lithological mapping by integrating spectral enhancement techniques and machine learning algorithms using AVIRIS-NG hyperspectral data in Gold-bearing granite-greenstone rocks in Hutti, India

open access: yesInternational Journal of Applied Earth Observation and Geoinformation, 2020
In this study, we proposed an automated lithological mapping approach by using spectral enhancement techniques and Machine Learning Algorithms (MLAs) using Airborne Visible Infrared Imaging Spectroradiometer-Next Generation (AVIRIS-NG) hyperspectral data
C. Kumar   +3 more
semanticscholar   +1 more source

Vicarious Calibration of eMAS, AirMSPI, and AVIRIS Sensors During FIREX-AQ

open access: yesIEEE Transactions on Geoscience and Remote Sensing, 2021
Remote sensing instruments, both aircraft and on-orbit platforms, undergo extensive laboratory calibrations to determine their geometric, spectral, and radiometric responses.
C. Bruegge   +7 more
semanticscholar   +1 more source

Imager-to-radiometer in-flight cross calibration: RSP radiometric comparison with airborne and satellite sensors [PDF]

open access: yesAtmospheric Measurement Techniques, 2016
This work develops a method to compare the radiometric calibration between a radiometer and imagers hosted on aircraft and satellites. The radiometer is the airborne Research Scanning Polarimeter (RSP), which takes multi-angle, photo-polarimetric ...
J. McCorkel, B. Cairns, A. Wasilewski
doaj   +1 more source

Improved methane emission estimates using AVIRIS-NG and an Airborne Doppler Wind Lidar

open access: yesRemote Sensing of Environment, 2021
This study demonstrates the utility of combining Airborne Doppler Wind Lidar measurements and quantitative methane (CH4) retrievals from the Next Generation Airborne Visible/Infrared Imaging Spectrometer (AVIRIS-NG) to estimate CH4 emission rates.
A. Thorpe   +10 more
semanticscholar   +1 more source

Spatial Patterns of Chemical Weathering at the Basal Tertiary Nonconformity in California from Multispectral and Hyperspectral Optical Remote Sensing

open access: yesRemote Sensing, 2019
Visible through shortwave (VSWIR) spectral reflectance of the geologic units across the basal Tertiary nonconformity (BTN) is characterized at three spatially disparate locations in California. At two of these sites, location-specific spectral endmembers
Francis J. Sousa, Daniel J. Sousa
doaj   +1 more source

Denoising AVIRIS-NG Data for Generation of New Chlorophyll Indices

open access: yesIEEE Sensors Journal, 2021
The availability of Airborne Visible and Infrared Imaging Spectrometer-Next Generation (AVIRIS-NG) data has enormous possibilities for quantification of Leaf Chlorophyll Content (LCC).
Prachi Singh   +6 more
semanticscholar   +1 more source

Challenges in Methane Column Retrievals from AVIRIS-NG Imagery over Spectrally Cluttered Surfaces: A Sensitivity Analysis

open access: yesRemote Sensing, 2017
A comparison between efforts to detect methane anomalies by a simple band ratio approach from the Airborne Visual Infrared Imaging Spectrometer-Classic (AVIRIS-C) data for the Kern Front oil field, Central California, and the Coal Oil Point marine ...
Minwei Zhang, Ira Leifer, Chuanmin Hu
doaj   +1 more source

Nearshore Water Quality Estimation Using Atmospherically Corrected AVIRIS Data

open access: yesRemote Sensing, 2011
The objective of the research is to characterize the surface spectral reflectance of the nearshore waters using atmospheric correction code—Tafkaa for retrieval of the marine water constituent concentrations from hyperspectral data. The study area is the
Sima Bagheri
doaj   +1 more source

Detection and quantification of CH4 plumes using the WFM-DOAS retrieval on AVIRIS-NG hyperspectral data [PDF]

open access: yesAtmospheric Measurement Techniques, 2021
Methane is the second most important anthropogenic greenhouse gas in the Earth's atmosphere. To effectively reduce these emissions, a good knowledge of source locations and strengths is required.
J. Borchardt   +11 more
doaj   +1 more source

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