Characterizing Spatiotemporal Trends of Meteorological Extremes in Southern Ontario, Canada
Extreme meteorological conditions are changing in the twentieth century, with potentially severe environmental implications. We explored the changes in these extreme conditions and found seasonal signatures in extreme monthly values of air and dew point temperature and low relative humidity, spatial...
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University of Toronto
2021
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ftunivtoronto:oai:tspace.library.utoronto.ca:1807/108788 2023-05-15T15:04:37+02:00 Characterizing Spatiotemporal Trends of Meteorological Extremes in Southern Ontario, Canada Shah, Lamees Arhonditsis, George Geography 2021-11-30T17:09:12Z application/pdf http://hdl.handle.net/1807/108788 unknown University of Toronto http://hdl.handle.net/1807/108788 Bayesian inference climate change extreme value theory meteorological extremes teleconnections 0768 Thesis 2021 ftunivtoronto 2022-01-16T18:20:35Z Extreme meteorological conditions are changing in the twentieth century, with potentially severe environmental implications. We explored the changes in these extreme conditions and found seasonal signatures in extreme monthly values of air and dew point temperature and low relative humidity, spatial signatures in those of wind speed and high relative humidity, and no distinct patterns in those of precipitation from 1950–2020 in southern Ontario using the Mann–Kendall trend test and Theil–Sen estimator. We found a minimal role of four large-scale phenomena—Arctic Oscillation, North Atlantic Oscillation, El Niño–Southern Oscillation, and Pacific Decadal Oscillation—in the temporal trends using Bayesian Generalized Extreme Value and Poisson regression models. Warming temperature extremes in the colder months imply changes in ecological phenology. Our findings also suggest that there are fewer extreme cold conditions in colder months and more intense plant water loss and thermal discomfort in warmer months. M.Sc. Thesis Arctic Climate change North Atlantic North Atlantic oscillation University of Toronto: Research Repository T-Space Arctic Canada Pacific Kendall ENVELOPE(-59.828,-59.828,-63.497,-63.497) |
institution |
Open Polar |
collection |
University of Toronto: Research Repository T-Space |
op_collection_id |
ftunivtoronto |
language |
unknown |
topic |
Bayesian inference climate change extreme value theory meteorological extremes teleconnections 0768 |
spellingShingle |
Bayesian inference climate change extreme value theory meteorological extremes teleconnections 0768 Shah, Lamees Characterizing Spatiotemporal Trends of Meteorological Extremes in Southern Ontario, Canada |
topic_facet |
Bayesian inference climate change extreme value theory meteorological extremes teleconnections 0768 |
description |
Extreme meteorological conditions are changing in the twentieth century, with potentially severe environmental implications. We explored the changes in these extreme conditions and found seasonal signatures in extreme monthly values of air and dew point temperature and low relative humidity, spatial signatures in those of wind speed and high relative humidity, and no distinct patterns in those of precipitation from 1950–2020 in southern Ontario using the Mann–Kendall trend test and Theil–Sen estimator. We found a minimal role of four large-scale phenomena—Arctic Oscillation, North Atlantic Oscillation, El Niño–Southern Oscillation, and Pacific Decadal Oscillation—in the temporal trends using Bayesian Generalized Extreme Value and Poisson regression models. Warming temperature extremes in the colder months imply changes in ecological phenology. Our findings also suggest that there are fewer extreme cold conditions in colder months and more intense plant water loss and thermal discomfort in warmer months. M.Sc. |
author2 |
Arhonditsis, George Geography |
format |
Thesis |
author |
Shah, Lamees |
author_facet |
Shah, Lamees |
author_sort |
Shah, Lamees |
title |
Characterizing Spatiotemporal Trends of Meteorological Extremes in Southern Ontario, Canada |
title_short |
Characterizing Spatiotemporal Trends of Meteorological Extremes in Southern Ontario, Canada |
title_full |
Characterizing Spatiotemporal Trends of Meteorological Extremes in Southern Ontario, Canada |
title_fullStr |
Characterizing Spatiotemporal Trends of Meteorological Extremes in Southern Ontario, Canada |
title_full_unstemmed |
Characterizing Spatiotemporal Trends of Meteorological Extremes in Southern Ontario, Canada |
title_sort |
characterizing spatiotemporal trends of meteorological extremes in southern ontario, canada |
publisher |
University of Toronto |
publishDate |
2021 |
url |
http://hdl.handle.net/1807/108788 |
long_lat |
ENVELOPE(-59.828,-59.828,-63.497,-63.497) |
geographic |
Arctic Canada Pacific Kendall |
geographic_facet |
Arctic Canada Pacific Kendall |
genre |
Arctic Climate change North Atlantic North Atlantic oscillation |
genre_facet |
Arctic Climate change North Atlantic North Atlantic oscillation |
op_relation |
http://hdl.handle.net/1807/108788 |
_version_ |
1766336357140004864 |