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 8 of 8 for “"cloud mask"”.
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Fast Supervised Annotation and Active Learning with Uncertainty for Cloud Mask Dataset Generation
… labeling concern for remote sensing projects is cloud mask dataset creation. Using optical satellite images requires detecting accurately all clouds in any image. For many applications, automatic cloud detection methods are not accurate enough. This thesis reformulates the problem away from …
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Development and verification of the NASA Multi-Angle Imager for Aerosols operational cloud mask
… matter concentration measurement collected over cloud-free pixels. The quality of this product heavily depends on the validity of the cloud mask. In this project, we present a cloud masking algorithm for MAIA constrained to its hardware. It consists of 7 observables that are tested against …
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Satellite Cloud Detection With Shortwave Channels: Algorithms, MISR Applications, and Three-Dimensional Radiative Effects
… fundamental step in satellite remote sensing---cloud detection, which has been known as the largest source of error in the retrievals of satellite geophysical products. This thesis consists of two parts: the operational part and the theoretical part. Specifically, the operational part is on the …
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Evaluating and Correcting the Effect of Sensor Spatial Resolution on Cloud Fraction Derived from Satellite Instruments
This study examines the biases in cloud fraction (CF) derived from satellite instruments that are due to the effect of sensor spatial resolution. In total, 1405 15 m resolution ASTER (Advanced Spaceborne Thermal Emission and Reflection Radiometer) scenes over cumulus-dominated regions including the …
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Evaluating the capabilities of modern machine learning techniques for operational over-ocean cloud masking with satellite imagers
Cloud detection is a fundamental first step in retrieving the geophysical properties of the Earth, determining which pixels contain clouds to generate a cloud mask. Analysis of passive imager missions contributing to the Global Energy and Water Cycle Experiment Cloud Assessments reveals slight …
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A Radiative Analysis of Angular Signatures and Oblique Radiance Retrievals Over the Polar Regions From the Multi-Angle Imaging Spectroradiometer
… lead to the brighter or darker appearance of clouds relative to the surface at nadir by introducing the transition albedo. The transition albedo shows that clouds darken the surface under three conditions: (1) high surface albedos, (2) high solar zenith angles (low sun), and (3) thin clouds. …
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Evaluating different remote sensing techniques for detection of Saharan dust and characterisation of dust sources
… ultimate aim of this project, furthermore the cloud mask applied to the product routinely masks out most of the dust. The other methods all have a spatial resolution of 1km and thus are more appropriate for this purpose.<br/>ii<br/>King’s College London 2011<br/>Of these methods the Ackerman …
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The macrophysical properties of shallow cumulus clouds from moderate- and high-resolution satellite data collected over the tropical western Pacific
Submission published under a 24 month embargo labeled 'Closed Access', the embargo will last until 2025-08-01