Age determination of North Atlantic sediment cores
Available overwash records from coastal barrier systems document significant variability in North Atlantic hurricane activity during the late Holocene. The same climate forcings that may have controlled cyclone activity over this interval (e.g., the West African Monsoon, El Niño-Southern Oscillation...
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ftpangaea:oai:pangaea.de:doi:10.1594/PANGAEA.823772 2023-05-15T17:29:15+02:00 Age determination of North Atlantic sediment cores Toomey, Michael R Curry, William B Donnelly, Jeffrey P vam Hengstum, Peter J MEDIAN LATITUDE: 24.688720 * MEDIAN LONGITUDE: -79.248660 * SOUTH-BOUND LATITUDE: 24.590500 * WEST-BOUND LONGITUDE: -79.268700 * NORTH-BOUND LATITUDE: 24.836000 * EAST-BOUND LONGITUDE: -79.218500 * DATE/TIME START: 2002-01-21T00:00:00 * DATE/TIME END: 2002-01-23T00:00:00 * MINIMUM DEPTH, sediment/rock: 0.005 m * MAXIMUM DEPTH, sediment/rock: 13.285 m 2013-12-09 text/tab-separated-values, 112 data points https://doi.pangaea.de/10.1594/PANGAEA.823772 https://doi.org/10.1594/PANGAEA.823772 en eng PANGAEA https://doi.pangaea.de/10.1594/PANGAEA.823772 https://doi.org/10.1594/PANGAEA.823772 CC-BY-3.0: Creative Commons Attribution 3.0 Unported Access constraints: unrestricted info:eu-repo/semantics/openAccess CC-BY Supplement to: Toomey, Michael R; Curry, William B; Donnelly, Jeffrey P; vam Hengstum, Peter J (2013): Reconstructing 7000 years of North Atlantic hurricane variability using deep-sea sediment cores from the western Great Bahama Bank. Paleoceanography, 28(1), 31-41, https://doi.org/10.1002/palo.20012 Age 14C AMS 14C calibrated comment dated dated material dated standard deviation Calendar age DEPTH sediment/rock Elevation of event Event label Florida Strait GC Gravity corer KN166-2 Knorr KNR166-2 KNR166-2-117 KNR166-2-118 KNR166-2-119 KNR166-2-133 KNR166-2-135 Latitude of event Longitude of event MUC MultiCorer PC Piston corer Dataset 2013 ftpangaea https://doi.org/10.1594/PANGAEA.823772 https://doi.org/10.1002/palo.20012 2023-01-20T09:01:58Z Available overwash records from coastal barrier systems document significant variability in North Atlantic hurricane activity during the late Holocene. The same climate forcings that may have controlled cyclone activity over this interval (e.g., the West African Monsoon, El Niño-Southern Oscillation (ENSO)) show abrupt changes around 6000 yrs B.P., but most coastal sedimentary records do not span this time period. Establishing longer records is essential for understanding mid-Holocene patterns of storminess and their climatic drivers, which will lead to better forecasting of how climate change over the next century may affect tropical cyclone frequency and intensity. Storms are thought to be an important mechanism for transporting coarse sediment from shallow carbonate platforms to the deep-sea, and bank-edge sediments may offer an unexplored archive of long-term hurricane activity. Here, we develop this new approach, reconstructing more than 7000 years of North Atlantic hurricane variability using coarse-grained deposits in sediment cores from the leeward margin of the Great Bahama Bank. High energy event layers within the resulting archive are (1) broadly correlated throughout an offbank transect of multi-cores, (2) closely matched with historic hurricane events, and (3) synchronous with previous intervals of heightened North Atlantic hurricane activity in overwash reconstructions from Puerto Rico and elsewhere in the Bahamas. Lower storm frequency prior to 4400 yrs B.P. in our records suggests that precession and increased NH summer insolation may have greatly limited hurricane potential intensity, outweighing weakened ENSO and a stronger West African Monsoon-factors thought to be favorable for hurricane development. Dataset North Atlantic PANGAEA - Data Publisher for Earth & Environmental Science ENVELOPE(-79.268700,-79.218500,24.836000,24.590500) |
institution |
Open Polar |
collection |
PANGAEA - Data Publisher for Earth & Environmental Science |
op_collection_id |
ftpangaea |
language |
English |
topic |
Age 14C AMS 14C calibrated comment dated dated material dated standard deviation Calendar age DEPTH sediment/rock Elevation of event Event label Florida Strait GC Gravity corer KN166-2 Knorr KNR166-2 KNR166-2-117 KNR166-2-118 KNR166-2-119 KNR166-2-133 KNR166-2-135 Latitude of event Longitude of event MUC MultiCorer PC Piston corer |
spellingShingle |
Age 14C AMS 14C calibrated comment dated dated material dated standard deviation Calendar age DEPTH sediment/rock Elevation of event Event label Florida Strait GC Gravity corer KN166-2 Knorr KNR166-2 KNR166-2-117 KNR166-2-118 KNR166-2-119 KNR166-2-133 KNR166-2-135 Latitude of event Longitude of event MUC MultiCorer PC Piston corer Toomey, Michael R Curry, William B Donnelly, Jeffrey P vam Hengstum, Peter J Age determination of North Atlantic sediment cores |
topic_facet |
Age 14C AMS 14C calibrated comment dated dated material dated standard deviation Calendar age DEPTH sediment/rock Elevation of event Event label Florida Strait GC Gravity corer KN166-2 Knorr KNR166-2 KNR166-2-117 KNR166-2-118 KNR166-2-119 KNR166-2-133 KNR166-2-135 Latitude of event Longitude of event MUC MultiCorer PC Piston corer |
description |
Available overwash records from coastal barrier systems document significant variability in North Atlantic hurricane activity during the late Holocene. The same climate forcings that may have controlled cyclone activity over this interval (e.g., the West African Monsoon, El Niño-Southern Oscillation (ENSO)) show abrupt changes around 6000 yrs B.P., but most coastal sedimentary records do not span this time period. Establishing longer records is essential for understanding mid-Holocene patterns of storminess and their climatic drivers, which will lead to better forecasting of how climate change over the next century may affect tropical cyclone frequency and intensity. Storms are thought to be an important mechanism for transporting coarse sediment from shallow carbonate platforms to the deep-sea, and bank-edge sediments may offer an unexplored archive of long-term hurricane activity. Here, we develop this new approach, reconstructing more than 7000 years of North Atlantic hurricane variability using coarse-grained deposits in sediment cores from the leeward margin of the Great Bahama Bank. High energy event layers within the resulting archive are (1) broadly correlated throughout an offbank transect of multi-cores, (2) closely matched with historic hurricane events, and (3) synchronous with previous intervals of heightened North Atlantic hurricane activity in overwash reconstructions from Puerto Rico and elsewhere in the Bahamas. Lower storm frequency prior to 4400 yrs B.P. in our records suggests that precession and increased NH summer insolation may have greatly limited hurricane potential intensity, outweighing weakened ENSO and a stronger West African Monsoon-factors thought to be favorable for hurricane development. |
format |
Dataset |
author |
Toomey, Michael R Curry, William B Donnelly, Jeffrey P vam Hengstum, Peter J |
author_facet |
Toomey, Michael R Curry, William B Donnelly, Jeffrey P vam Hengstum, Peter J |
author_sort |
Toomey, Michael R |
title |
Age determination of North Atlantic sediment cores |
title_short |
Age determination of North Atlantic sediment cores |
title_full |
Age determination of North Atlantic sediment cores |
title_fullStr |
Age determination of North Atlantic sediment cores |
title_full_unstemmed |
Age determination of North Atlantic sediment cores |
title_sort |
age determination of north atlantic sediment cores |
publisher |
PANGAEA |
publishDate |
2013 |
url |
https://doi.pangaea.de/10.1594/PANGAEA.823772 https://doi.org/10.1594/PANGAEA.823772 |
op_coverage |
MEDIAN LATITUDE: 24.688720 * MEDIAN LONGITUDE: -79.248660 * SOUTH-BOUND LATITUDE: 24.590500 * WEST-BOUND LONGITUDE: -79.268700 * NORTH-BOUND LATITUDE: 24.836000 * EAST-BOUND LONGITUDE: -79.218500 * DATE/TIME START: 2002-01-21T00:00:00 * DATE/TIME END: 2002-01-23T00:00:00 * MINIMUM DEPTH, sediment/rock: 0.005 m * MAXIMUM DEPTH, sediment/rock: 13.285 m |
long_lat |
ENVELOPE(-79.268700,-79.218500,24.836000,24.590500) |
genre |
North Atlantic |
genre_facet |
North Atlantic |
op_source |
Supplement to: Toomey, Michael R; Curry, William B; Donnelly, Jeffrey P; vam Hengstum, Peter J (2013): Reconstructing 7000 years of North Atlantic hurricane variability using deep-sea sediment cores from the western Great Bahama Bank. Paleoceanography, 28(1), 31-41, https://doi.org/10.1002/palo.20012 |
op_relation |
https://doi.pangaea.de/10.1594/PANGAEA.823772 https://doi.org/10.1594/PANGAEA.823772 |
op_rights |
CC-BY-3.0: Creative Commons Attribution 3.0 Unported Access constraints: unrestricted info:eu-repo/semantics/openAccess |
op_rightsnorm |
CC-BY |
op_doi |
https://doi.org/10.1594/PANGAEA.823772 https://doi.org/10.1002/palo.20012 |
_version_ |
1766122907672510464 |