Increasing heatwave frequency in streams and rivers of the United States
Abstract Heatwaves are increasing in frequency, duration, and intensity in ocean, coastal, and lake ecosystems. While positive water temperature trends have been documented in many rivers, heatwaves have not been analyzed. This study examined heatwaves in rivers throughout the United States between...
| Main Authors: | , , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
Wiley
2023-04-01
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| Series: | Limnology and Oceanography Letters |
| Online Access: | https://doi.org/10.1002/lol2.10284 |
| _version_ | 1797868060473819136 |
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| author | Spencer J. Tassone Alice F. Besterman Cal D. Buelo Dat T. Ha Jonathan A. Walter Michael L. Pace |
| author_facet | Spencer J. Tassone Alice F. Besterman Cal D. Buelo Dat T. Ha Jonathan A. Walter Michael L. Pace |
| author_sort | Spencer J. Tassone |
| collection | DOAJ |
| description | Abstract Heatwaves are increasing in frequency, duration, and intensity in ocean, coastal, and lake ecosystems. While positive water temperature trends have been documented in many rivers, heatwaves have not been analyzed. This study examined heatwaves in rivers throughout the United States between 1996 and 2021. Riverine heatwaves increased in frequency over the study period, with the most robust increases occurring in summer and fall, in mid‐ to high‐order streams, and at free‐flowing sites and sites above a reservoir. The increase in heatwave frequency was accompanied by an increase in moderate strength heatwaves as well as a doubling of the annual mean total number of heatwave days at a site. Riverine heatwaves were often associated with normal or below‐normal discharge conditions and at sites with a mean annual discharge ≤ 250 m3 s−1. These results provide the first assessment of heatwaves in rivers for a large geographic area in the United States. |
| first_indexed | 2024-04-09T23:51:13Z |
| format | Article |
| id | doaj.art-308d59f791e347fb85a8ffd8a9de85b4 |
| institution | Directory Open Access Journal |
| issn | 2378-2242 |
| language | English |
| last_indexed | 2024-04-09T23:51:13Z |
| publishDate | 2023-04-01 |
| publisher | Wiley |
| record_format | Article |
| series | Limnology and Oceanography Letters |
| spelling | doaj.art-308d59f791e347fb85a8ffd8a9de85b42023-03-17T09:32:15ZengWileyLimnology and Oceanography Letters2378-22422023-04-018229530410.1002/lol2.10284Increasing heatwave frequency in streams and rivers of the United StatesSpencer J. Tassone0Alice F. Besterman1Cal D. Buelo2Dat T. Ha3Jonathan A. Walter4Michael L. Pace5Department of Environmental Sciences University of Virginia Charlottesville VirginiaWoodwell Climate Research Center Woods Hole MassachusettsCenter for Limnology University of Wisconsin Madison WisconsinDepartment of Environmental Sciences University of Virginia Charlottesville VirginiaDepartment of Environmental Sciences University of Virginia Charlottesville VirginiaDepartment of Environmental Sciences University of Virginia Charlottesville VirginiaAbstract Heatwaves are increasing in frequency, duration, and intensity in ocean, coastal, and lake ecosystems. While positive water temperature trends have been documented in many rivers, heatwaves have not been analyzed. This study examined heatwaves in rivers throughout the United States between 1996 and 2021. Riverine heatwaves increased in frequency over the study period, with the most robust increases occurring in summer and fall, in mid‐ to high‐order streams, and at free‐flowing sites and sites above a reservoir. The increase in heatwave frequency was accompanied by an increase in moderate strength heatwaves as well as a doubling of the annual mean total number of heatwave days at a site. Riverine heatwaves were often associated with normal or below‐normal discharge conditions and at sites with a mean annual discharge ≤ 250 m3 s−1. These results provide the first assessment of heatwaves in rivers for a large geographic area in the United States.https://doi.org/10.1002/lol2.10284 |
| spellingShingle | Spencer J. Tassone Alice F. Besterman Cal D. Buelo Dat T. Ha Jonathan A. Walter Michael L. Pace Increasing heatwave frequency in streams and rivers of the United States Limnology and Oceanography Letters |
| title | Increasing heatwave frequency in streams and rivers of the United States |
| title_full | Increasing heatwave frequency in streams and rivers of the United States |
| title_fullStr | Increasing heatwave frequency in streams and rivers of the United States |
| title_full_unstemmed | Increasing heatwave frequency in streams and rivers of the United States |
| title_short | Increasing heatwave frequency in streams and rivers of the United States |
| title_sort | increasing heatwave frequency in streams and rivers of the united states |
| url | https://doi.org/10.1002/lol2.10284 |
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