Handbook of sea‐level research

Shennan, Ian; Long, Antony J.; Horton, Benjamin P.

doi:10.1002/9781118452547.ch2

Cited by 104 publications

(105 citation statements)

References 43 publications

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“…Reconstructions of late Holocene (last 4000 years) RSL have recently been compiled to create a database defining vertical land motion along the Atlantic Coast of the U.S. [Engelhart and Horton, 2012;Kemp et al, 2014;Nikitina et al, 2015]. The methodology is described in the Handbook of Sea-Level Research [Shennan et al, 2015] and recent publications [Engelhart et al, 2009;Engelhart and Horton, 2012;Hijma et al, 2015]. These data assume that late Holocene ice equivalent meltwater input is minimal from 4 ka B.P.…”

Section: Late Holocene Relative Sea Level Databasementioning

confidence: 99%

Subsidence along the Atlantic Coast of North America: Insights from GPS and late Holocene relative sea level data

Karegar

Dixon

Engelhart

2016

Geophysical Research Letters

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The Atlantic Coast of North America is increasingly affected by flooding associated with tropical and extratropical storms, exacerbated by the combined effects of accelerated sea‐level rise and land subsidence. The region includes the collapsing forebulge of the Laurentide Ice Sheet. High‐quality records of late Holocene relative sea‐level (RSL) rise are now available, allowing separation of long‐term glacial isostatic adjustment‐induced displacement from modern vertical displacement measured by GPS. We compare geological records of late Holocene RSL to present‐day vertical rates from GPS. For many coastal areas there is no significant difference between these independent data. Exceptions occur in areas of recent excessive groundwater extraction, between Virginia (38°N) and South Carolina (32.5°N). The present‐day subsidence rates in these areas are approximately double the long‐term geologic rates, which has important implications for flood mitigation. Tide gauge records, therefore, should be used with caution for studying sea‐level rise in this region.

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Section: Late Holocene Relative Sea Level Databasementioning

confidence: 99%

Subsidence along the Atlantic Coast of North America: Insights from GPS and late Holocene relative sea level data

Karegar

Dixon

Engelhart

2016

Geophysical Research Letters

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“…hydro-), ocean dynamic, tectonic, and local (e.g., tidal regime change or sediment consolidation) factors that act over a variety of spatial and temporal scales [12,14]. Since the Last Glacial Maximum (LGM; 26 ka), RSL changes have been driven by the melting of~50 million km 3 of land-based ice as the Earth transitioned from glacial to interglacial climatic conditions [15][16][17].…”

Section: This Article Is Part Of the Topical Collection On Sea Level mentioning

confidence: 99%

“…We show sea-level index points that record the position of RSL over time at each location [40,41]. Each index point contains information about its (a) geographic location; (b) age from 14 C, U/Th, optically stimulated luminescence or amino acid racemization dating and the associated measurement and/or calibration error; and (c) elevation of former sea level and the associated vertical error. We also show marine and freshwater limiting data that define the lower-and upperbound of RSL, respectively [41].…”

Section: Rsl Histories and Application Of Gaussian Process Modelmentioning

confidence: 99%

Holocene Relative Sea-Level Changes from Near-, Intermediate-, and Far-Field Locations

Khan

Ashe

Shaw

et al. 2015

Curr Clim Change Rep

129

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Holocene relative sea-level (RSL) records exhibit spatial and temporal variability that arises mainly from the interaction of eustatic (land ice volume and thermal expansion) and isostatic (glacio-and hydro-) factors. We fit RSL histories from near-, intermediate-, and far-field locations with noisy-input Gaussian process models to assess rates of RSL change. Records from near-field regions (e.g., Antarctica, Greenland, Canada, Sweden, and Scotland) reveal a complex pattern of RSL fall from a maximum marine limit due to the net effect of eustatic sea-level rise and glacio-isostatic uplift with rates of RSL fall as great as −69±9 m/ka. Intermediatefield regions (e.g., mid-Atlantic and Pacific coasts of the USA, Netherlands, Southern France, St. Croix) display variable rates of RSL rise from the cumulative effect of eustatic and isostatic factors. Fast rates of RSL rise (up to 10±1 m/ka) are found in the early Holocene in regions near the center of forebulge collapse. Far-field RSL records exhibit a midHolocene highstand, the timing (between 8 and 4 ka) and magnitude (between <1 and 6 m) of which varies among South America, Africa, Asia, and Oceania regions.

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“…Our near-field (western Vancouver Island) and intermediate-field (southern Washington, and central Oregon) regions are located along the Cascadia subduction zone. Cascadia's RSL history has been reconstructed using sea-level index points that record the position of RSL over time [57]. Each index point contains information about its (a) geographic location; (b) calibrated radiocarbon age and error (2σ); and (c) elevation of former sea level and its vertical error (2σ) [58].…”

Section: Regional Rsl and Earthquake Historymentioning

confidence: 99%

The Role of Holocene Relative Sea-Level Change in Preserving Records of Subduction Zone Earthquakes

Dura

Engelhart

Vacchi

et al. 2016

Curr Clim Change Rep

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Eustasy and glacio-and hydro-isostatic adjustment are the main drivers of regional variability of Holocene relative sea-level (RSL) records. These regional variations in Holocene RSL influence the preservation of coastal wetland stratigraphic records of prehistoric earthquakes along subduction zone coasts. The length and completeness of prehistoric earthquake records is intrinsically linked to the accommodation space provided by gradually rising (<3 mm/year) Holocene RSL. In near-field regions that were located beneath northern hemisphere ice sheets (e.g., western Vancouver Island), RSL fall from a mid-Holocene highstand has limited prehistoric earthquake records to the last 1 ka. In intermediate field regions (e.g., southern Washington and central Oregon), gradual RSL rise over the last ∼7 ka has preserved widespread records of prehistoric earthquakes. In far-field regions (e.g., Sumatra, Chile, and Japan), fragmentary stratigraphic evidence of prehistoric earthquakes has been preserved only during periods of gradual RSL rise prior to a mid-Holocene highstand, or during the last 1-3 ka, when RSL was within 2 m of modern sea level, and thus within the tidal frame.

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Handbook of sea‐level research

Cited by 104 publications

References 43 publications

Subsidence along the Atlantic Coast of North America: Insights from GPS and late Holocene relative sea level data

Subsidence along the Atlantic Coast of North America: Insights from GPS and late Holocene relative sea level data

Holocene Relative Sea-Level Changes from Near-, Intermediate-, and Far-Field Locations

The Role of Holocene Relative Sea-Level Change in Preserving Records of Subduction Zone Earthquakes

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