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.
Results
Showing 1 to 20 of 35 for “"optical remote sensing"”.
-
Observations of surfzone vorticity using optical remote sensing
… Ocean, and nearshore flows were observed using optical remote sensing (coastal imaging) and in situ sensors. Remote sensing algorithms are expanded from previous applications to estimate high spatial resolution two-dimensional surface flows by tracking the motion of naturally occurring foam …
-
Observations of Surfzone Vorticity Using Optical Remote Sensing
… Ocean, and nearshore flows were observed using optical remote sensing (coastal imaging) and in situ sensors. Remote sensing algorithms are expanded from previous applications to estimate high spatial resolution two-dimensional surface flows by tracking the motion of naturally occurring foam …
-
Measuring grassland response to management using optical remote sensing
… grassland response to management methods using optical remote sensing (RS) imagery. More specifically, the purpose is to overcome the challenges facing the application of optical RS for evaluating grassland conditions (dead material estimation and the issue of mixed pixel for green vegetation …
-
Distinguishing cyanobacteria from algae using bio-optical remote sensing
This study advances the use of remote sensing for eutrophication and cyanobacterial bloom detection in inland and near-coastal waters. The hypothesis that prokaryotic cyanobacteria can be systematically differentiated from algae (or eukaryotic species) on the basis of their distinctive bio-optical …
-
Optical remote sensing for agriculture monitoring: a quantitative assessment under local conditions
Agriculture around the world (including Czechia) faces growing demands to maintain high and stable production while achieving challenging environmental and climate goals. Meeting these requirements necessitates timely, spatially objective, and reproducible information on the status of crops and …
-
Optical remote sensing of thermospheric emission with the Sky-Calibrated Imaging Photometer
Optical remote sensing of emission lines is a well-established approach to estimating atmospheric parameters. The neutral oxygen 844.6 nm emission line has long been considered a good candidate for estimating the oxygen density in the upper thermosphere due to its brightness and relatively simple …
-
Optical Remote Sensing of Airborne Particulate Matter to Quantify Opacity and Mass Emissions
During the second stage of this research, a technique was developed to obtain in-situ measurements of PM mass emissions for the dust plumes that are generated from unique military activities. The method was then tested in the field to measure dust emissions from artillery back blast and tracked …
-
Evaluation and improvement of optical remote sensing methods in monitoring particulate matter emissions and plume opacity
… by a plume. This research focuses on two optical methods that have been developed and implemented previously to measure PM mass emission factor (EF) and plume opacity. My contributions to this research are: 1) evaluating and improving the previous approaches used in these two methods, and …
-
Detecting Breaking Waves and Measuring Bore Speeds in Optical Surf Zone Imagery using Machine Learning
… is developed to detect breaking waves in optical remote sensing data collected under visually diverse conditions along a kilometer-scale beach in Duck, NC. Bore speeds are estimated from the breaking-wave detections and are compared with theoretical models using surveyed bathymetry. …
-
Submerged habitats from space: increasing map production capacity with new methods and software.
… been devised to address this complexity, but the remote sensing literature in which these methods are described tend to focus on novelty rather than practical implementation. Consequently, methods are often tailored to specific environmental conditions and described in very technical terms, source …
-
Fine Characterization of Leafing Phenology in the Brazilian Atlantic Forest by Optical and Microwave Remote Sensing
… forests is therefore poorly characterized by optical remote sensing methods which are not sensitive to small variations in water content in canopy constituents and sensitive to cloud cover. Meanwhile, microwave radar is sensitive to vegetation moisture and so I ask whether radar remote sensing …
-
The study of acoustic properties of P205-doped silica fiber
Silica-based optical fibers have been applied to numerous fields. The interactions between acoustic phonons and the optical wave are involved in several of these applications. A significant stimulated scattering mechanism observed is stimulated Brillouin scattering (SBS), resulting in strong …
-
Cybergis-enabled remote sensing data analytics for deep learning of landscape patterns and dynamics
… light detection and ranging (LiDAR) remote sensing data provides tremendous opportunities to unveil complex landscape patterns and better understand landscape dynamics from a 3D perspective. LiDAR data have been applied to diverse remote sensing applications where large-scale …
-
Imaging of volcanic trace gases by Fabry-Perot interferometer correlation spectroscopy
Imaging of atmospheric trace gas distributions by optical remote sensing allows for a direct assessment of the dynamics of both physical and chemical processes. In particular, the fast evolution of trace gases emitted by point sources (e.g., volcanic plumes) can be studied comprehensively by …
-
Theory and Experiments of Scattering From Microscale Random Rough and Deterministic Surfaces
… disciplines including thermal system design, optical remote sensing and photorealistic image generation. A combined experimental and theoretical investigation has been conducted for surfaces which have surface length scales on the order of the incident wavelength. A Fourier Transform Infrared …
-
Innovative Applications of Laser Remote Sensing of Gases, Aerosols and Wind
… component of the research carried out at the Optical Remote Sensing Laboratory of the City College of New York has been on active sensing technologies and their different applications in atmospheric studies. This thesis builds upon and looks to further advance this field by demonstrating …
-
Tropospheric aerosol detection over Southern Ireland using a backscatter Raman lidar
Lidar is an optical remote sensing instrument that can measure atmospheric parameters. A Raman lidar instrument (UCLID) was established at University College Cork to contribute to the European lidar network, EARLINET. System performance tests were carried out to ensure strict data quality assurance …
Page 1 of 2