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Climate change alters flood magnitudes and mechanisms in climatically-diverse headwaters across the northwestern United States
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| Zeitschriftentitel: | Environmental Research Letters |
|---|---|
| Personen und Körperschaften: | , , |
| In: | Environmental Research Letters, 15, 2020, 9, S. 094048 |
| Format: | E-Article |
| Sprache: | Unbestimmt |
| veröffentlicht: |
IOP Publishing
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| Schlagwörter: |
| author_facet |
S Chegwidden, Oriana Rupp, David E Nijssen, Bart S Chegwidden, Oriana Rupp, David E Nijssen, Bart |
|---|---|
| author |
S Chegwidden, Oriana Rupp, David E Nijssen, Bart |
| spellingShingle |
S Chegwidden, Oriana Rupp, David E Nijssen, Bart Environmental Research Letters Climate change alters flood magnitudes and mechanisms in climatically-diverse headwaters across the northwestern United States Public Health, Environmental and Occupational Health General Environmental Science Renewable Energy, Sustainability and the Environment |
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s chegwidden, oriana |
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S Chegwidden, Oriana Rupp, David E Nijssen, Bart 1748-9326 IOP Publishing Public Health, Environmental and Occupational Health General Environmental Science Renewable Energy, Sustainability and the Environment http://dx.doi.org/10.1088/1748-9326/ab986f <jats:title>Abstract</jats:title> <jats:p>Flooding caused by high streamflow events poses great risk around the world and is projected to increase under climate change. This paper assesses how climate change will alter high streamflow events by changing both the prevalence of different driving mechanisms (i.e. ‘flood generating processes’) and the magnitude of differently generated floods. We present an analysis of simulated changes in high streamflow events in selected basins in the hydroclimatically diverse Pacific Northwestern United States, classifying the events according to their mechanism. We then compare how the different classes of events respond to changes in climate at the annual scale. In a warmer future, high flow events will be caused less frequently by snowmelt and more frequently by precipitation events. Also, precipitation-driven high flow events are more sensitive to increases in precipitation than are snowmelt-driven high flow events, so the combination of the increase in both frequency and magnitude of precipitation-driven high flow events leads to higher flood likelihood than under each change alone. Our comparison of the results from two emissions pathways shows that a reduction in global emissions will limit the increase in magnitude and prevalence of these precipitation-driven events.</jats:p> Climate change alters flood magnitudes and mechanisms in climatically-diverse headwaters across the northwestern United States Environmental Research Letters |
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Climate change alters flood magnitudes and mechanisms in climatically-diverse headwaters across the northwestern United States |
| title_unstemmed |
Climate change alters flood magnitudes and mechanisms in climatically-diverse headwaters across the northwestern United States |
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Climate change alters flood magnitudes and mechanisms in climatically-diverse headwaters across the northwestern United States |
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Climate change alters flood magnitudes and mechanisms in climatically-diverse headwaters across the northwestern United States |
| title_full_unstemmed |
Climate change alters flood magnitudes and mechanisms in climatically-diverse headwaters across the northwestern United States |
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Climate change alters flood magnitudes and mechanisms in climatically-diverse headwaters across the northwestern United States |
| title_sort |
climate change alters flood magnitudes and mechanisms in climatically-diverse headwaters across the northwestern united states |
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Public Health, Environmental and Occupational Health General Environmental Science Renewable Energy, Sustainability and the Environment |
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http://dx.doi.org/10.1088/1748-9326/ab986f |
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2020 |
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094048 |
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<jats:title>Abstract</jats:title>
<jats:p>Flooding caused by high streamflow events poses great risk around the world and is projected to increase under climate change. This paper assesses how climate change will alter high streamflow events by changing both the prevalence of different driving mechanisms (i.e. ‘flood generating processes’) and the magnitude of differently generated floods. We present an analysis of simulated changes in high streamflow events in selected basins in the hydroclimatically diverse Pacific Northwestern United States, classifying the events according to their mechanism. We then compare how the different classes of events respond to changes in climate at the annual scale. In a warmer future, high flow events will be caused less frequently by snowmelt and more frequently by precipitation events. Also, precipitation-driven high flow events are more sensitive to increases in precipitation than are snowmelt-driven high flow events, so the combination of the increase in both frequency and magnitude of precipitation-driven high flow events leads to higher flood likelihood than under each change alone. Our comparison of the results from two emissions pathways shows that a reduction in global emissions will limit the increase in magnitude and prevalence of these precipitation-driven events.</jats:p> |
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| author | S Chegwidden, Oriana, Rupp, David E, Nijssen, Bart |
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| description | <jats:title>Abstract</jats:title> <jats:p>Flooding caused by high streamflow events poses great risk around the world and is projected to increase under climate change. This paper assesses how climate change will alter high streamflow events by changing both the prevalence of different driving mechanisms (i.e. ‘flood generating processes’) and the magnitude of differently generated floods. We present an analysis of simulated changes in high streamflow events in selected basins in the hydroclimatically diverse Pacific Northwestern United States, classifying the events according to their mechanism. We then compare how the different classes of events respond to changes in climate at the annual scale. In a warmer future, high flow events will be caused less frequently by snowmelt and more frequently by precipitation events. Also, precipitation-driven high flow events are more sensitive to increases in precipitation than are snowmelt-driven high flow events, so the combination of the increase in both frequency and magnitude of precipitation-driven high flow events leads to higher flood likelihood than under each change alone. Our comparison of the results from two emissions pathways shows that a reduction in global emissions will limit the increase in magnitude and prevalence of these precipitation-driven events.</jats:p> |
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| spelling | S Chegwidden, Oriana Rupp, David E Nijssen, Bart 1748-9326 IOP Publishing Public Health, Environmental and Occupational Health General Environmental Science Renewable Energy, Sustainability and the Environment http://dx.doi.org/10.1088/1748-9326/ab986f <jats:title>Abstract</jats:title> <jats:p>Flooding caused by high streamflow events poses great risk around the world and is projected to increase under climate change. This paper assesses how climate change will alter high streamflow events by changing both the prevalence of different driving mechanisms (i.e. ‘flood generating processes’) and the magnitude of differently generated floods. We present an analysis of simulated changes in high streamflow events in selected basins in the hydroclimatically diverse Pacific Northwestern United States, classifying the events according to their mechanism. We then compare how the different classes of events respond to changes in climate at the annual scale. In a warmer future, high flow events will be caused less frequently by snowmelt and more frequently by precipitation events. Also, precipitation-driven high flow events are more sensitive to increases in precipitation than are snowmelt-driven high flow events, so the combination of the increase in both frequency and magnitude of precipitation-driven high flow events leads to higher flood likelihood than under each change alone. Our comparison of the results from two emissions pathways shows that a reduction in global emissions will limit the increase in magnitude and prevalence of these precipitation-driven events.</jats:p> Climate change alters flood magnitudes and mechanisms in climatically-diverse headwaters across the northwestern United States Environmental Research Letters |
| spellingShingle | S Chegwidden, Oriana, Rupp, David E, Nijssen, Bart, Environmental Research Letters, Climate change alters flood magnitudes and mechanisms in climatically-diverse headwaters across the northwestern United States, Public Health, Environmental and Occupational Health, General Environmental Science, Renewable Energy, Sustainability and the Environment |
| title | Climate change alters flood magnitudes and mechanisms in climatically-diverse headwaters across the northwestern United States |
| title_full | Climate change alters flood magnitudes and mechanisms in climatically-diverse headwaters across the northwestern United States |
| title_fullStr | Climate change alters flood magnitudes and mechanisms in climatically-diverse headwaters across the northwestern United States |
| title_full_unstemmed | Climate change alters flood magnitudes and mechanisms in climatically-diverse headwaters across the northwestern United States |
| title_short | Climate change alters flood magnitudes and mechanisms in climatically-diverse headwaters across the northwestern United States |
| title_sort | climate change alters flood magnitudes and mechanisms in climatically-diverse headwaters across the northwestern united states |
| title_unstemmed | Climate change alters flood magnitudes and mechanisms in climatically-diverse headwaters across the northwestern United States |
| topic | Public Health, Environmental and Occupational Health, General Environmental Science, Renewable Energy, Sustainability and the Environment |
| url | http://dx.doi.org/10.1088/1748-9326/ab986f |