Exploring Potential Links Between Co-occurring Coastal Terrestrial and Marine Heatwaves in Australia
Despite numerous studies examining terrestrial or marine heatwaves independently, little work has investigated potential associations between these two types of extreme events. Examination of a limited number of past events suggests that certain co-occurring terrestrial and marine heatwaves have com...
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| Format: | Article |
| Language: | English |
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Frontiers Media S.A.
2022-03-01
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| Series: | Frontiers in Climate |
| Subjects: | |
| Online Access: | https://www.frontiersin.org/articles/10.3389/fclim.2022.792730/full |
| _version_ | 1818286275716710400 |
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| author | Charuni Pathmeswaran Charuni Pathmeswaran Alex Sen Gupta Alex Sen Gupta Sarah E. Perkins-Kirkpatrick Sarah E. Perkins-Kirkpatrick Melissa Anne Hart |
| author_facet | Charuni Pathmeswaran Charuni Pathmeswaran Alex Sen Gupta Alex Sen Gupta Sarah E. Perkins-Kirkpatrick Sarah E. Perkins-Kirkpatrick Melissa Anne Hart |
| author_sort | Charuni Pathmeswaran |
| collection | DOAJ |
| description | Despite numerous studies examining terrestrial or marine heatwaves independently, little work has investigated potential associations between these two types of extreme events. Examination of a limited number of past events suggests that certain co-occurring terrestrial and marine heatwaves have common drivers. Co-occurring events may also interact via local land-sea interactions, thereby altering the likelihood of these events. This study explores possible links between adjacent coastal marine and terrestrial heatwaves around Australia using observation and reanalysis data. We find a significant increase in the number of terrestrial heatwave days in the presence of an adjacent co-occurring marine heatwave along the coastal belt of Australia. In most regions, this increase persists at least 150 km inland. This suggests that processes operating beyond the narrow coastal belt are important in most regions. We also show that synoptic conditions driving a terrestrial heatwave in three locations around Australia are conducive for warming the ocean, which would increase the likelihood of a marine heatwave occurring. However, ocean state must also be conducive to reach MHW conditions. Our findings suggest that co-occurring terrestrial and marine heatwaves co-occur more frequently than chance would dictate, and that large scale synoptics may be conducive to both coastal terrestrial and marine heatwaves. |
| first_indexed | 2024-12-13T01:22:01Z |
| format | Article |
| id | doaj.art-2c5a8d715bfc43d58a44ce168873402d |
| institution | Directory Open Access Journal |
| issn | 2624-9553 |
| language | English |
| last_indexed | 2024-12-13T01:22:01Z |
| publishDate | 2022-03-01 |
| publisher | Frontiers Media S.A. |
| record_format | Article |
| series | Frontiers in Climate |
| spelling | doaj.art-2c5a8d715bfc43d58a44ce168873402d2022-12-22T00:04:13ZengFrontiers Media S.A.Frontiers in Climate2624-95532022-03-01410.3389/fclim.2022.792730792730Exploring Potential Links Between Co-occurring Coastal Terrestrial and Marine Heatwaves in AustraliaCharuni Pathmeswaran0Charuni Pathmeswaran1Alex Sen Gupta2Alex Sen Gupta3Sarah E. Perkins-Kirkpatrick4Sarah E. Perkins-Kirkpatrick5Melissa Anne Hart6ARC Centre of Excellence for Climate Extremes, University of New South Wales, Sydney, NSW, AustraliaClimate Change Research Centre, University of New South Wales, Sydney, NSW, AustraliaARC Centre of Excellence for Climate Extremes, University of New South Wales, Sydney, NSW, AustraliaClimate Change Research Centre, University of New South Wales, Sydney, NSW, AustraliaARC Centre of Excellence for Climate Extremes, University of New South Wales, Sydney, NSW, AustraliaSchool of Science, University of New South Wales, Canberra, ACT, AustraliaARC Centre of Excellence for Climate Extremes, University of New South Wales, Sydney, NSW, AustraliaDespite numerous studies examining terrestrial or marine heatwaves independently, little work has investigated potential associations between these two types of extreme events. Examination of a limited number of past events suggests that certain co-occurring terrestrial and marine heatwaves have common drivers. Co-occurring events may also interact via local land-sea interactions, thereby altering the likelihood of these events. This study explores possible links between adjacent coastal marine and terrestrial heatwaves around Australia using observation and reanalysis data. We find a significant increase in the number of terrestrial heatwave days in the presence of an adjacent co-occurring marine heatwave along the coastal belt of Australia. In most regions, this increase persists at least 150 km inland. This suggests that processes operating beyond the narrow coastal belt are important in most regions. We also show that synoptic conditions driving a terrestrial heatwave in three locations around Australia are conducive for warming the ocean, which would increase the likelihood of a marine heatwave occurring. However, ocean state must also be conducive to reach MHW conditions. Our findings suggest that co-occurring terrestrial and marine heatwaves co-occur more frequently than chance would dictate, and that large scale synoptics may be conducive to both coastal terrestrial and marine heatwaves.https://www.frontiersin.org/articles/10.3389/fclim.2022.792730/fullmarine heatwavesterrestrial heatwavescompound eventstemperature extremesAustralia |
| spellingShingle | Charuni Pathmeswaran Charuni Pathmeswaran Alex Sen Gupta Alex Sen Gupta Sarah E. Perkins-Kirkpatrick Sarah E. Perkins-Kirkpatrick Melissa Anne Hart Exploring Potential Links Between Co-occurring Coastal Terrestrial and Marine Heatwaves in Australia Frontiers in Climate marine heatwaves terrestrial heatwaves compound events temperature extremes Australia |
| title | Exploring Potential Links Between Co-occurring Coastal Terrestrial and Marine Heatwaves in Australia |
| title_full | Exploring Potential Links Between Co-occurring Coastal Terrestrial and Marine Heatwaves in Australia |
| title_fullStr | Exploring Potential Links Between Co-occurring Coastal Terrestrial and Marine Heatwaves in Australia |
| title_full_unstemmed | Exploring Potential Links Between Co-occurring Coastal Terrestrial and Marine Heatwaves in Australia |
| title_short | Exploring Potential Links Between Co-occurring Coastal Terrestrial and Marine Heatwaves in Australia |
| title_sort | exploring potential links between co occurring coastal terrestrial and marine heatwaves in australia |
| topic | marine heatwaves terrestrial heatwaves compound events temperature extremes Australia |
| url | https://www.frontiersin.org/articles/10.3389/fclim.2022.792730/full |
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