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 9 of 9 for “"TROPOMI"”.
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A General Observational Strategy for Validation of Satellite NO₂ Retrievals using Multi-Axis Differential Optical Absorption Spectroscopy (MAX-DOAS)
… based on real MAX-DOAS measurements as well as TROPOMI viewing geometry. While the individual ground measurements were not equal to the TROPOMI profile, the TROPOMI profile is approximately the average of the profiles of measurements made within the hour of TROPOMI overpass.
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Missing methane: Machine learning for satellite remote sensing of methane
… is the TROPOspheric Monitoring Instrument (TROPOMI), capable of observing methane globally on a daily basis. However, TROPOMI observations of methane are often spatially disrupted due to cloud cover and other factors that prevent accurate retrievals of methane abundances. In this thesis, I …
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Detecting Methane Anomalies from Satellite Data in the Arctic
… in the research area. For this anomaly detection TROPOMI WFMD v1.8 dataset in the Arctic region for the summer and spring seasons of 2018--2023 is used. The main focus of the thesis is to introduce a method for creating an anomaly set and to evaluate if the TROPOMI WFMD v1.8 dataset has enough …
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From Hyperspectral Indices to Global Fluorescence: PACE Vegetation Indices as Predictors of Terrestrial Photosynthesis
… Sentinel-5P Tropospheric Monitoring Instrument (TROPOMI), even in the absence of PACE BRDF and albedo products (and their associated corrections). Using 8-day global composites from 2024, we establish a temporal and spatial correlation between PACE indices and TROPOMI SIF (TROPOSIF) across …
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Determining the temporal and spatial variations of pollutants in Toronto
… and low NO, NOx concentrations, respectively. TROPOMI satellite measurements over a gridded plane in Toronto also display the highest and lowest NO2 and HCHO levels over Pearson Airport and Lake Ontario.
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Ground- and satellite-based observations of column nitrogen dioxide: instrument performance, column-to-surface relationships, and the role of meteorology in coastal urban environments
… across time and space. Generally, the TROPOMI satellite instrument overpasses struggled to characterize changes in column NO2 gradients across the Boston and Harvard University measurement locations between 2020 and 2021 relative to Pandora. However, TROPOMI resolved differences in the …
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Analysis of Trace Gas Heterogeneity using In-Situ and Remote Sensing Measurement Techniques
… agreement between Mobile Zenith-DOAS and TROPOMI Satellite-Based DOAS, however the relationship is only somewhat correlated (r2=0.3), indicating that other factors are a greater influence on the ability of Ground-Based DOAS and Satellite-Based DOAS to agree. During the second TRACER-AQ …
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Employment of Multi-Source Satellite-Based Observations in Air Quality Modeling over Asia
… from the TROPOspheric Monitoring Instrument (TROPOMI), Advanced Himawari Imager (AHI), and Geostationary Ocean Color Imager (GOCI). While the model initially underestimated AOD by -50.73% in 2019, the emissions updates, with increases in NOx and primary PM emissions by 122.79% and 114.63%, …
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A Better Tropospheric Aerosol Analysis and Forecast Using Data Assimilation and Coupled Modeling
… technique with tropospheric NO2 column from TROPOMI in the spring of 2019. We found a substantial contribution of the transported air pollutants on local NOx (22.96 – 35.24%) and O3 (24.23 – 42.26%) budgets. The enhanced chemical loss of NOx compensated for increases by transport, as well as …