Remote sensing of local warming trend in alberta, canada during 2001–2020, and its relationship with large-scale atmospheric circulations
Here, the objective was to study the local warming trend and its driving factors in the natural subregions of Alberta using a remote-sensing approach. We applied the Mann–Kendall test and Sen’s slope estimator on the day and nighttime MODIS LST time-series images to map and quantify the extent and m...
| Main Authors: | , , , , , |
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| Format: | Journal Article |
| Language: | English |
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MDPI
2021
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| Subjects: | |
| Online Access: | http://hdl.handle.net/20.500.11937/89041 |
| _version_ | 1848765145985056768 |
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| author | Hassan, Q.K. Ejiagha, I.R. Ahmed, M.R. Gupta, A. Rangelova, E. Dewan, Ashraf |
| author_facet | Hassan, Q.K. Ejiagha, I.R. Ahmed, M.R. Gupta, A. Rangelova, E. Dewan, Ashraf |
| author_sort | Hassan, Q.K. |
| building | Curtin Institutional Repository |
| collection | Online Access |
| description | Here, the objective was to study the local warming trend and its driving factors in the natural subregions of Alberta using a remote-sensing approach. We applied the Mann–Kendall test and Sen’s slope estimator on the day and nighttime MODIS LST time-series images to map and quantify the extent and magnitude of monthly and annual warming trends in the 21 natural subre-gions of Alberta. We also performed a correlation analysis of LST anomalies (both day and nighttime) of the subregions with the anomalies of the teleconnection patterns, i.e., Pacific North American (PNA), Pacific decadal oscillation (PDO), Arctic oscillation (AO), and sea surface temperature (SST, Niño 3.4 region) indices, to identify the relationship. May was the month that showed the most significant warming trends for both day and night during 2001–2020 in most of the subre-gions in the Rocky Mountains and Boreal Forest. Subregions of Grassland and Parkland in southern and southeastern parts of Alberta showed trends of cooling during daytime in July and August and a small magnitude of warming in June and August at night. We also found a significant cooling trend in November for both day and night. We identified from the correlation analysis that the PNA pattern had the most influence in the subregions during February to April and October to December for 2001–2020; however, none of the atmospheric oscillations showed any significant relationship with the significant warming/cooling months. |
| first_indexed | 2025-11-14T11:30:36Z |
| format | Journal Article |
| id | curtin-20.500.11937-89041 |
| institution | Curtin University Malaysia |
| institution_category | Local University |
| language | English |
| last_indexed | 2025-11-14T11:30:36Z |
| publishDate | 2021 |
| publisher | MDPI |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | curtin-20.500.11937-890412022-08-19T06:09:19Z Remote sensing of local warming trend in alberta, canada during 2001–2020, and its relationship with large-scale atmospheric circulations Hassan, Q.K. Ejiagha, I.R. Ahmed, M.R. Gupta, A. Rangelova, E. Dewan, Ashraf Science & Technology Life Sciences & Biomedicine Physical Sciences Technology Environmental Sciences Geosciences, Multidisciplinary Remote Sensing Imaging Science & Photographic Technology Environmental Sciences & Ecology Geology Arctic oscillation (AO) Mann-Kendall test Nino 3 4 region Pacific decadal oscillation (PDO) Pacific North American (PNA) pattern temperature anomaly NORTH AMERICAN TELECONNECTION SURFACE-TEMPERATURE OSCILLATION IMPACTS CLIMATE VARIABILITY SIMULATION EARLIER REGIONS FLUXES Here, the objective was to study the local warming trend and its driving factors in the natural subregions of Alberta using a remote-sensing approach. We applied the Mann–Kendall test and Sen’s slope estimator on the day and nighttime MODIS LST time-series images to map and quantify the extent and magnitude of monthly and annual warming trends in the 21 natural subre-gions of Alberta. We also performed a correlation analysis of LST anomalies (both day and nighttime) of the subregions with the anomalies of the teleconnection patterns, i.e., Pacific North American (PNA), Pacific decadal oscillation (PDO), Arctic oscillation (AO), and sea surface temperature (SST, Niño 3.4 region) indices, to identify the relationship. May was the month that showed the most significant warming trends for both day and night during 2001–2020 in most of the subre-gions in the Rocky Mountains and Boreal Forest. Subregions of Grassland and Parkland in southern and southeastern parts of Alberta showed trends of cooling during daytime in July and August and a small magnitude of warming in June and August at night. We also found a significant cooling trend in November for both day and night. We identified from the correlation analysis that the PNA pattern had the most influence in the subregions during February to April and October to December for 2001–2020; however, none of the atmospheric oscillations showed any significant relationship with the significant warming/cooling months. 2021 Journal Article http://hdl.handle.net/20.500.11937/89041 10.3390/rs13173441 English http://creativecommons.org/licenses/by/4.0/ MDPI fulltext |
| spellingShingle | Science & Technology Life Sciences & Biomedicine Physical Sciences Technology Environmental Sciences Geosciences, Multidisciplinary Remote Sensing Imaging Science & Photographic Technology Environmental Sciences & Ecology Geology Arctic oscillation (AO) Mann-Kendall test Nino 3 4 region Pacific decadal oscillation (PDO) Pacific North American (PNA) pattern temperature anomaly NORTH AMERICAN TELECONNECTION SURFACE-TEMPERATURE OSCILLATION IMPACTS CLIMATE VARIABILITY SIMULATION EARLIER REGIONS FLUXES Hassan, Q.K. Ejiagha, I.R. Ahmed, M.R. Gupta, A. Rangelova, E. Dewan, Ashraf Remote sensing of local warming trend in alberta, canada during 2001–2020, and its relationship with large-scale atmospheric circulations |
| title | Remote sensing of local warming trend in alberta, canada during 2001–2020, and its relationship with large-scale atmospheric circulations |
| title_full | Remote sensing of local warming trend in alberta, canada during 2001–2020, and its relationship with large-scale atmospheric circulations |
| title_fullStr | Remote sensing of local warming trend in alberta, canada during 2001–2020, and its relationship with large-scale atmospheric circulations |
| title_full_unstemmed | Remote sensing of local warming trend in alberta, canada during 2001–2020, and its relationship with large-scale atmospheric circulations |
| title_short | Remote sensing of local warming trend in alberta, canada during 2001–2020, and its relationship with large-scale atmospheric circulations |
| title_sort | remote sensing of local warming trend in alberta, canada during 2001–2020, and its relationship with large-scale atmospheric circulations |
| topic | Science & Technology Life Sciences & Biomedicine Physical Sciences Technology Environmental Sciences Geosciences, Multidisciplinary Remote Sensing Imaging Science & Photographic Technology Environmental Sciences & Ecology Geology Arctic oscillation (AO) Mann-Kendall test Nino 3 4 region Pacific decadal oscillation (PDO) Pacific North American (PNA) pattern temperature anomaly NORTH AMERICAN TELECONNECTION SURFACE-TEMPERATURE OSCILLATION IMPACTS CLIMATE VARIABILITY SIMULATION EARLIER REGIONS FLUXES |
| url | http://hdl.handle.net/20.500.11937/89041 |