Presenters-0495: Difference between revisions
From CSDMS
(Created page with "{{Presenters temp |CSDMS meeting event title=CSDMS 2020 Webinars |CSDMS meeting event year=2020 |CSDMS meeting presentation type=Webinar |CSDMS meeting webinar date=2020/06/30...") |
No edit summary |
||
Line 13: | Line 13: | ||
{{Presenters presentation | {{Presenters presentation | ||
|CSDMS meeting abstract presentation=River deltas will likely experience significant land loss because of relative sea-level rise (RSLR), but predictions have remained elusive. Here, we use global data of RSLR and river sediment supply to build a validated model of delta response to RSLR for all ~10,000 deltas globally. Applying this model to predict future delta change, we find that all IPCC RCP sea-level scenarios lead to a net delta loss by the end of the 21st century, ranging from -52 ± 36 (1 s.d.) km2yr-1 for RCP2.6 to -808 ± 80 km2yr-1 for RCP8.5. We find that river dams, subsidence, and sea-level rise have had a comparable influence on reduced delta growth over the past decades, but that by 2100 under RCP8.5 more than 80% of delta land loss will be caused by climate-change driven sea-level rise. | |CSDMS meeting abstract presentation=River deltas will likely experience significant land loss because of relative sea-level rise (RSLR), but predictions have remained elusive. Here, we use global data of RSLR and river sediment supply to build a validated model of delta response to RSLR for all ~10,000 deltas globally. Applying this model to predict future delta change, we find that all IPCC RCP sea-level scenarios lead to a net delta loss by the end of the 21st century, ranging from -52 ± 36 (1 s.d.) km2yr-1 for RCP2.6 to -808 ± 80 km2yr-1 for RCP8.5. We find that river dams, subsidence, and sea-level rise have had a comparable influence on reduced delta growth over the past decades, but that by 2100 under RCP8.5 more than 80% of delta land loss will be caused by climate-change driven sea-level rise. | ||
|CSDMS meeting youtube code= | |CSDMS meeting youtube code=D8jpTWsWt54 | ||
|CSDMS meeting participants=0 | |CSDMS meeting participants=0 | ||
}} | }} |
Revision as of 15:37, 1 July 2020
CSDMS 2020 Webinars
CSDMS Summer Science Series I: Global morphodynamic response of deltas to sea-level rise in the 21st century
Abstract
River deltas will likely experience significant land loss because of relative sea-level rise (RSLR), but predictions have remained elusive. Here, we use global data of RSLR and river sediment supply to build a validated model of delta response to RSLR for all ~10,000 deltas globally. Applying this model to predict future delta change, we find that all IPCC RCP sea-level scenarios lead to a net delta loss by the end of the 21st century, ranging from -52 ± 36 (1 s.d.) km2yr-1 for RCP2.6 to -808 ± 80 km2yr-1 for RCP8.5. We find that river dams, subsidence, and sea-level rise have had a comparable influence on reduced delta growth over the past decades, but that by 2100 under RCP8.5 more than 80% of delta land loss will be caused by climate-change driven sea-level rise.
Please acknowledge the original contributors when you are using this material. If there are any copyright issues, please let us know (CSDMSweb@colorado.edu) and we will respond as soon as possible.
Of interest for: