2021 CSDMS meeting-099: Difference between revisions
From CSDMS
(Created page with "{{CSDMS meeting personal information template-2021 |CSDMS meeting first name=Derrick |CSDMS meeting last name=Vaughn |CSDMS meeting institute=Florida State University |CSDMS m...") |
No edit summary |
||
| Line 44: | Line 44: | ||
|CSDMS meeting abstract=The efficiency of fluvial sediment and particulate organic carbon (POC) burial in river deltas strongly depends on their depositional environment, which can range from protected incised valleys to exposed active margins. Here, we hypothesize that the formation and infilling of incised valleys from Holocene sea-level rise led to increases in fluvial sediment burial efficiency, and, consequently, POC burial. To test this, we developed a new incised valley fill model that estimates incised valley volume and fill rates. We apply this model to all river deltas globally (n~11,000), some of which are filled already but many are still infilling since Holocene sea-level rise slowed ~6ka BP. The rate of incised valley infilling is determined based on global model estimates of fluvial sediment and POC supply. We use our model to explore the magnitude of POC burial during the Holocene, including its potential for global climate regulation. | |CSDMS meeting abstract=The efficiency of fluvial sediment and particulate organic carbon (POC) burial in river deltas strongly depends on their depositional environment, which can range from protected incised valleys to exposed active margins. Here, we hypothesize that the formation and infilling of incised valleys from Holocene sea-level rise led to increases in fluvial sediment burial efficiency, and, consequently, POC burial. To test this, we developed a new incised valley fill model that estimates incised valley volume and fill rates. We apply this model to all river deltas globally (n~11,000), some of which are filled already but many are still infilling since Holocene sea-level rise slowed ~6ka BP. The rate of incised valley infilling is determined based on global model estimates of fluvial sediment and POC supply. We use our model to explore the magnitude of POC burial during the Holocene, including its potential for global climate regulation. | ||
}} | }} | ||
{{CSDMS meeting abstract figures}} | |||
{{blank line template}} | {{blank line template}} | ||
Revision as of 11:37, 14 May 2021
Log in (or create account for non-CSDMS members)
Forgot username? Search or email:CSDMSweb@colorado.edu
Browse abstracts
Global incised valley filling during the Holocene sea-level highstand - implications for carbon burial
Derrick Vaughn, Florida State University Tallahassee Florida, United States. dvaughn2@fsu.edu
Jaap Nienhuis, Utrecht University Utrecht , Netherlands. j.h.nienhuis@gmail.com
Robert Spencer, Florida State University Tallahassee Florida, United States. rgspencer@magnet.fsu.edu
The efficiency of fluvial sediment and particulate organic carbon (POC) burial in river deltas strongly depends on their depositional environment, which can range from protected incised valleys to exposed active margins. Here, we hypothesize that the formation and infilling of incised valleys from Holocene sea-level rise led to increases in fluvial sediment burial efficiency, and, consequently, POC burial. To test this, we developed a new incised valley fill model that estimates incised valley volume and fill rates. We apply this model to all river deltas globally (n~11,000), some of which are filled already but many are still infilling since Holocene sea-level rise slowed ~6ka BP. The rate of incised valley infilling is determined based on global model estimates of fluvial sediment and POC supply. We use our model to explore the magnitude of POC burial during the Holocene, including its potential for global climate regulation.
| [[Image:|300px|right]] |
