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Showing 1 to 12 of 12 for “"AVIRIS"”.
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Redução de dimensionalidade baseado na codificação binária para dados hiperespectrais aviris
… a dimensionalidade de dados hiperespectrais AVIRIS é a codificação binária. Esta codificação cria uma representação de bandas espectrais que facilita a identificação de classes mediante o estabelecimento de regiões espectrais vizinhas que armazenam uma quantidade de respostas espectrais …
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An Investigation Of Sub-Pixel Cloud/clear-Sky Contamination Using Hyper-Spectral AVIRIS Data
… Airborne Visible/Infrared Imaging Spectrometer (AVIRIS) and Geostationary Operational Environmental Satellite (GOES) data, sub-pixel cloud and clear-sky contamination were studied over the west coast of Northern California. The hyper-spectral data from AVIRIS have a spatial resolution on the …
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Remote detection of forest structure in the White Mountains of New Hampshire: An integration of waveform lidar and hyperspectral remote sensing data
… Airborne Visible/Infrared Imaging Spectrometer (AVIRIS). USDA Forest Service Northeastern Research Station (USFS NERS) 2001-2003 inventory data was used to define basal area, above-ground biomass, quadratic mean stem diameter and proportional species abundances within each of over 400 plots. …
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Time Series Analysis of Vegetation Change using Hyperspectral and Multispectral Data
… Airborne Visible/Infrared Imaging Spectrometer (AVIRIS) hyperspectral dataset, also collected during 2011. These data were used along with additional reflectance-corrected multispectral datasets (IKONOS from 2007 and QuickBird from 2006 and 2009) to create vegetation classification maps using …
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Respuesta de la vegetación a variaciones climáticas en praderas y sistemas adehesados mediterráneos : metodología de análisis utilizando datos hiperespectrales y multiespectrales = Vegetation reponses to climatic variability in a Mediterranean grassland and savannah : methodologies of analysis using hyperspectral and multispectral data
… utilizando cinco imágenes hiperespectrales AVIRIS (Airbome Visible-Infrared Imaging Spectrometer) y 110 imágenes multiespectrales AVHRR (Advance Very High Resolution Radiorneter) adquiridas entre 1994-1998 en una zona de vegetación natural en la costa Central de California. Se desarrollaron …
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Assessing hemlock woolly adelgid induced decline and susceptibility using hyperspectral technologies
… Airborne Visible Infrared Imaging Spectrometer (AVIRIS) was used to create a hemlock abundance map, correctly identifying hemlock dominated pixels (>40% basal area) with 88% accuracy. Reflectance at a chlorophyll sensitive wavelength (683nm), coupled with a water band index (R970/900), was able …
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Utility of remote sensing data in retrieval of water quality consituents concentrations in coastal water of New Jersey
… Airborne Visible/Infrared Imaging Spectrometer (AVIRIS) and LIght Detection And Ranging (LIDAR) signals. The approaches used here are based on the unique capabilities of AVIRIS and LIDAR data which can potentially provide a better understanding of how sunlight interacts with estuarine/inland …
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Analyzing variation in snow albedo across spatial scales of observation in the Alaskan boreal forest
… Airborne Visible/Infrared Imaging Spectrometer (AVIRIS-NG), we conducted a spectral unmixing analysis to characterize the fraction of snow across transects. Assuming ground measurements are entirely snow, we compared field spectrometer measurements to airborne and satellite reflectance data, …
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Assessing the cumulative impact of disturbance on canopy structure and chemistry in Appalachian forests
… cover, understory cover, and leaf cover. I used AVIRIS imagery flown concurrently with field data collection to map canopy nitrogen across both forests. Through this project, I tested the impact of cumulative disturbance on forest canopy cover and canopy nitrogen. I found that increased values of …
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Data driven estimation of soil and vegetation attributes using airborne remote sensing
… Airborne Visible/Infrared Imaging Spectrometer (AVIRIS) data collected over midwestern United States immediately after the large 2011 Mississippi River flood indicate the feasibility of using the developed models for quantitative spatial prediction of soil attributes over large areas (> 700 sq. …
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The discrete wavelet transform as a precursor to leaf area index estimation and species classification using airborne hyperspectral data
… we investigated the utility of the Haar DWT for AVIRIS hyperspectral data analysis in three different applications (1) classification of three pine species (Pinus spp.), (2) estimation of leaf area index (LAI) using an empirically-based model, and (3) estimation of LAI using a physically-based …
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Manifold learning based spectral unmixing of hyperspectral remote sensing data
… to evaluate the proposed methods using the AVIRIS Cuprite hyperspectral reference dataset.</p> <p>A case study of manifold learning based spectral unmixing in agricultural areas is included in the dissertation.Remotely sensed data collected by airborne or spaceborne sensors are utilized to …