Browsing Theses by Subject "remote sensing"
Now showing items 1-20 of 31
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Assessing hydrometeorological controls on subalpine plant community evapotranspiration and evaluating the METRIC method using high-resolution UAV imagery in the Canadian Rocky Mountains
(University of Waterloo, 2023-01-06)Subalpine wetlands in the Canadian Rocky Mountains function as buffers for snowmelt runoff towards downstream systems and communities. However, hydrological regimes are changing rapidly in these ecosystems due to climate ... -
Assessment of Drivers of Algal Biomass in North American Great Lakes via Satellite Remote Sensing
(University of Waterloo, 2024-04-02)Lakes are regarded as sentinels of change, where shifts in environmental conditions significantly affect lake phenology. A significant consequence of the change is the perceived increase in the frequency, magnitude, and ... -
Automated Remote Sensing Image Interpretation with Limited Labeled Training Data
(University of Waterloo, 2015-08-24)Automated remote sensing image interpretation has been investigated for more than a decade. In early years, most work was based on the assumption that there are sufficient labeled samples to be used for training. However, ... -
Building Detection from Very High Resolution Remotely Sensed Imagery Using Deep Neural Networks
(University of Waterloo, 2019-04-30)The past decades have witnessed a significant change in human societies with a fast pace and rapid urbanization. The boom of urbanization is contributed by the influx of people to the urban area and comes with building ... -
Chlorophyll-a Mapping in a Large Lake Using Remote Sensing Imagery: A Case Study of Western Lake Ontario
(University of Waterloo, 2024-04-23)Western Lake Ontario (WLO) and Hamilton Harbour (HH) experience significant eutrophication challenges. Despite an overall decrease in the limiting nutrient phosphorus (P) inputs, recurrent nuisance (Cladophora) and ... -
Communicating the Pixel: A Strategy for Guiding the Use of Remotely-Sensed Habitat Data in Coral Reef Management
(University of Waterloo, 2008-09-04)Over the last decade, coral reef remote sensing research has focused on habitat map development. Advances in field methods, spatial and spectral resolution of remote sensing data, and algorithm development have led to more ... -
Deep Image Prior for Disentangling Mixed Pixels
(University of Waterloo, 2022-08-19)A mixed pixel in remotely sensed images measures the reflectance and emission from multiple target types (e.g., tree, grass, and building) from a certain area. Mixed pixels exist commonly in spaceborne hyper-/multi-spectral ... -
Developing a radar-based machine learning snowfall retrieval algorithm
(University of Waterloo, 2023-01-03)As global temperatures continue to rise, snowfall patterns are expected to respond in a complex, nonlinear manner. Changes in the quantity of snowmelt-derived freshwater will impact global water-energy budgets, flood ... -
Downscaling Coarse Resolution Satellite Passive Microwave SWE Estimates
(University of Waterloo, 2020-05-26)The spatio-temporal heterogeneity of seasonal snow and its impact on socio-economic and environmental functionality make accurate, real-time estimates of snow water equivalent (SWE) important for hydrological and climatological ... -
The effect of ecosystem change, restoration, and plant diversity on thermally imaged surface temperature
(University of Waterloo, 2020-12-07)The objective of this dissertation was to test and quantify the hypothesis from ecosystem thermodynamics: that the surface temperature of a terrestrial ecosystem changes with the state of the ecosystem in general, and with ... -
Estimating PM2.5 Concentrations Using 3 KM MODIS AOD Products: A Case Study in British Columbia, Canada
(University of Waterloo, 2019-04-30)PM2.5 refers to fine particles with diameters smaller than 2.5 μm. The rising level of PM2.5 reveals adverse effects on climate change, economic losses, international conflicts, and public health. Exposure to the high level ... -
Evaluating Multi-Temporal DInSAR Measurements of Ground Surface Deformation Around the Rhenish Coalfields in Germany Using Sentinel-1 SAR Imagery
(University of Waterloo, 2021-06-01)Ground surface deformation caused by land subsidence is a critical aspect when assessing safety and environmental impacts of open-pit mining operations. These mining-induced deformations can cause severe damage to local ... -
Evaluating remotely piloted aircraft estimates of crop height and LAI against satellite and crop model outputs
(University of Waterloo, 2021-02-17)Crop simulation models (CSM) have been a method for decision makers to study the effects of crop management activities for predicting, planning, and improving crop growth for the past several decades. While the applicability ... -
Forward Modelling of Multifrequency SAR Backscatter of Snow-Covered Lake Ice: Investigating Varying Snow and Ice Properties Within a Radiative Transfer Framework
(University of Waterloo, 2023-01-19)Lakes are a key feature in the Northern Hemisphere landscape. The coverage of lakes by ice cover has important implications for local weather conditions and can influence energy balance. The presence of lake ice is also ... -
Improving Predictions of Precipitation Phase over Canada with the Development of a Spatially Aware Parameterization of Rain/Snow Partitioning
(University of Waterloo, 2023-08-30)Partitioning precipitation into rain or snow is an important aspect of hydrologic and climatological modelling, affecting a wide variety of downstream processes (Harpold et al., 2017). Current conventional methods typically ... -
Integration of Satellite Data, Physically-based Model, and Deep Neural Networks for Historical Terrestrial Water Storage Reconstruction
(University of Waterloo, 2021-04-08)Terrestrial water storage (TWS) is an essential part of the global water cycle. Long-term monitoring of observed and modeled TWS is fundamental to analyze droughts, floods, and other meteorological extreme events caused ... -
Investigation of intra-annual glacier velocity and seasonality of White and Thompson Glaciers, Axel Heiberg Island, Nunavut
(University of Waterloo, 2023-01-03)The Canadian Arctic Archipelago (CAA) is undergoing rapid atmospheric warming at rates that are twice that of the global average and are greater than any other time in the past four millennia. Consequently, changes in ... -
Monitoring Ice Break-Up on the Mackenzie River Using Remote Sensing
(University of Waterloo, 2015-01-12)The Mackenzie Basin is composed of eight sub-basins (North Mountains, Liard, Peace, Athabasca, Great Bear Low Plains, Great Slave and Arctic Red) and includes three large lakes (Great Bear Lake, Great Slave Lake, Lake ... -
Monitoring Rainwater Harvesting Systems in India Using Satellite Remote Sensing Observations
(University of Waterloo, 2018-10-26)The building of small reservoirs is a typical measure taken by farmers to moderate the extremes of the hydrologic regime of a semiarid climate, which is characterized by the alternation of a short rainy season with long ... -
Monitoring Seasonal Snow Density from Satellite Based Passive Microwave Remote Sensing and Automatic Weather Stations
(University of Waterloo, 2023-10-26)Seasonal snow plays an important role in Earth’s systems and for hydrological applications one of the most important properties is the quantity of liquid water stored in the snowpack, referred to as snow water equivalent ...