Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 20 of 77 for “"Spectroradiometer"”.
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Three-dimensional cloud volume reconstruction from the Multi-angle Imaging SpectroRadiometer
… Earth's energy budget. The Multi-angle Imaging SpectroRadiometer (MISR) is on board the Terra satellite, in its 17th year of operation as of 2017. MISR provides nine views of the same scene that allow scientists to visualize the 3-D structure of observed clouds to a certain extent. Taking …
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Land Surface Phenology of North American Mountain Environments Using the Terra Moderate Resolution Imaging Spectroradiometer
Monitoring and understanding plant phenology is becoming an increasingly important way to identify and model global changes in vegetation life cycle events. Although numerous studies have used synoptically sensed data to study phenological patterns at the continental and global scale, relatively …
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Assessing ice storm damage to hardwood forest canopies using the Advanced Solid-State Array Spectroradiometer (ASAS) and Landsat TM imagery
… hyperspectral sensor, Advanced Solid-State Array Spectroradiometer (ASAS), acquired imagery for nine ice damaged target areas in the White Mountain National Forest (WMNF). Ice damage was also measured in situ at 288 sample plots. Radiance values for nadir ASAS images were normalized and the blue …
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A Radiative Analysis of Angular Signatures and Oblique Radiance Retrievals Over the Polar Regions From the Multi-Angle Imaging Spectroradiometer
This dissertation makes the following key contributions to science: (1) With the aid of the MODerate Resolution atmospheric TRANsmission (MODTRAN) radiative transfer model, this dissertation provides the first explanation of the conditions that lead to the brighter or darker appearance of clouds …
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Post-wildfire black carbon deposition on the snowpack in the Cascade Range, Washington State: Temporal and spatial variability with implications for accelerated melt
… Photometer (SP2), gravimetric filtration, and spectroradiometer analysis. These analyses demonstrate that the greatest BC deposition is localized to high burn severity areas, and decreases significantly within ten years of a wildfire. Spectroradiometer data demonstrate that BC has the strongest …
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Investigating Elevated Aqua Modis Aerosol Optical Depth Retrievals Over The Mid-Latitude Southern Oceans
… datasets such as Moderate Resolution Imaging SpectroRadiometer (MODIS) and Multi-angle Imaging SpectroRadiometer (MISR) products. In this study, Aqua MODIS (AM) aerosol products in this zonal region are investigated in detail to assess retrieval accuracy. This is done through multiple data …
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MODBASE : a SciDB-powered system for large-scale distributed storage and analysis of MODIS earth remote sensing data
… produced by the NASA Moderate Resolution Imaging Spectroradiometer (MODIS) instrument. This paper details the reasons for building the MODBASE system, its design and implementation, and puts it to the test on a series of practical Earth Science benchmarks using standard MODIS data granules.
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Trophic State Monitoring Of Lakes And Reservoirs Using Remote Sensing
… in situ data and Moderate Resolution Imaging Spectroradiometer (MODIS) spectral reflectance data. This was accomplished by deriving Carlson Trophic State Index values for each in situ measurements and using these TSI(SD), TSI(CHL), and TSI(TP) values to evaluate potential predictive methods. …
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Assessing Satellite Image Data Fusion with Information Theory Metrics
… data from the Moderate Resolution Imaging Spectroradiometer (“MODIS”) with known ideal results, and evaluated using the commonly accepted data fusion assessment metrics spectral angle mapper (“SAM”) and Erreur Relative Globale Adimensionelle de Synth`ese (“ERGAS”). It is also established …
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A trainable image pattern classification system for detection of damaged soybean seeds
… discolored by fungi were determined using a spectroradiometer. Knowledge of the optical properties of soybean seeds provided a means of identifying that differences in spectral reflectance existed which could be used for discriminating among asymptomatic soybean seeds and seeds discolored by …
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Abundance and Distribution of Early Life Stage Blue Crabs (Callinectes sapidus) in Lake Pontchartrain
… the estuary. MODerate-resolution Imaging Spectroradiometer (MODIS) 250 m data were analyzed to gain a large-scale view of suspended sediments patterns within Lake Pontchartrain and quantify water movement. Field sampling along with remote sensing proved to be beneficial when assessing …
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MONITORING OF NORTH AMERICAN SNOW COVER AND ENSO EFFECTS
… Observing System Moderate Resolution Imaging Spectroradiometer (MODIS)/Terra satellite provided every eight-day (MOD10C2) and monthly (MOD10CM) Hierarchical Data Format (HDF) products were used in this study. These both products were analyzed using MATLAB HDF import tool to measure SCAs and to …
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The impact of vertical variations of cloud mircrophysics and drizzle on the angular anisotropic behavior of weighted cloud droplet effective radius
… imagers, like Moderate Resolution Imaging Spectroradiometer (MODIS), using two shortwave spectral channels (so called bispectral method), typically one in visible or near-infrared spectral region and the other from a shortwave infrared spectral region. The MODIS-retrieved Re product has …
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Evaluating the capabilities of modern machine learning techniques for operational over-ocean cloud masking with satellite imagers
… derived from Terra Moderate Resolution Imaging Spectroradiometer (MODIS) observations and quality controlling MODIS’ cloud mask. We found that a simple convolutional neural network (CNN), a model relying on textural information, outperformed others with an accuracy of ~96%, surpassing the best …
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Atmospheric correction of New Zealand Landsat imagery : a thesis presented in partial fulfilment of the requirements for the degree of Master of Philosophy in Earth Science at Massey University
… were also taken of targets with a GER 2600 Spectroradiometer and these readings compared to the atmospheric corrections of the same targets. This confirmed the accuracy of the atmospheric correction methods.
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Development of a multispectral albedometer and deployment on an unmanned aircraft for evaluating satellite retrieved surface reflectance over Nevada's Black Rock Desert
… albedo from NASAModerate Resolution Imaging Spectroradiometer (MODIS) and Land Satellite 7Enhanced Thematic Mapper Plus (Landsat-7 ETM+). The instrument was deployed onOctober 5th, 2017 under clear skies over Nevada's Black Rock Desert to investigate aregion of known high surface reflectance. …
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Eastern Deciduous Forest Phenology and Vegetative Vigor Trends From 2000 to 2013, Mammoth Cave National Park, KY
… calculated from MODerate-Resolution Imaging Spectroradiometer (MODIS) instrument data, the photosynthetic activity of vegetation at Mammoth Cave National Park (MACA) is tracked from 2000 to 2013. Three methods were employed to examine the changes and climate influences in vegetation over the …
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Satellite Cloud Detection With Shortwave Channels: Algorithms, MISR Applications, and Three-Dimensional Radiative Effects
… land algorithm for NASA's Multi-angle Imaging SpectroRadiometer (MISR) mission. This algorithm is now in operational use at the NASA Langley Distributed Active Archive Center (DAAC) by the MISR cloud, land, and aerosol remote sensing algorithms. The theoretical study is on the impacts of 3-D …
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Wildfire Risk Assessment Using Convolutional Neural Networks and Modis Climate Data
… data from NASA’s Moderate Resolution Imaging Spectroradiometer (MODIS). The dataset consists of 32 climate and topographical layers captured across 0.1 deg by 0.1 deg tiled regions in California and Nevada between 2015 and 2020, associated with whether the region later saw a wildfire incident. …
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Characteristics of Yellow Sea Fog Under Varying Aerosol Conditions
… including Moderate Resolution Imaging Spectroradiometer (MODIS) aboard on the Aqua satellite, Ozone Monitoring Instrument (OMI) aboard on the EOS-Aura satellite, and the Cloud-Aerosol Lidar and Infrared Pathfinder Satellite Observation (CALIPSO) satellite which observe aerosol, ozone …
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