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|a A Search for Scale in Sea-Level Studies |h [electronic resource]. |
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|a [S.l.] : |b Coastal Education and Research Foundation. |
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|a Journal of Coastal Research Volume 22 Issue 4. |
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|a Please contact the owning institution for licensing and permissions. It is the user's responsibility to ensure use does not violate any third party rights. |
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|a Many researchers assume a proportional relationship among the atmospheric CO2 concentration, temperature, and
sea level. Thus, the rate of sea-level rise should increase in concert with the documented exponential increase in CO2.
Although sea surface temperature has increased in places over the past century and short-term sea level rose abruptly
during the 1990s, it is difficult to demonstrate a proportional relationship using existing geologic or historic records.
Tide gauge records in the United States cover too short a time interval to verify acceleration in the rate of sea-level
rise, although multicentury tide gauge and staff records from the Netherlands and Sweden suggest a mid-19th-century
acceleration in sea-level rise. Reconstructions of sea-level changes for the past 1000 years derived using benthic
foraminifer data from salt marshes along the East Coast of the United States suggest an increased rate of relative
sea-level rise beginning in the 1600s. Geologic records of relative sea-level rise for the past 6000 years are available
for several sites along the US East Coast from 14C-dated basal peat below salt marshes and estuarine sediments.
When these three scales of sea-level variation are integrated, adjusted for postglacial isostatic movement, and replotted,
the range of variation in sea level suggested by basal peat ages is within [plus or minus] 1 meter of the long-term trend.
The reconstruction from Long Island Sound data shows a linear rise in sea level beginning in the mid-1600s at a rate
consistent with the historic record of mean high water. Long-term tide gauge records from Europe and North America
show similar trends since the mid–19th century. There is no clear proportional exponential increase in the rate of
sea-level rise. If proportionality exists among sea level, atmospheric CO2, and temperature, there may be a significant
time lag before an anthropogenic increase in the rate of sea-level rise occurs. |
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|a Electronic reproduction. |c Florida International University, |d 2015. |f (dpSobek) |n Mode of access: World Wide Web. |n System requirements: Internet connectivity; Web browser software. |
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|t A Search for Scale in Sea-Level Studies |
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|a dpSobek |c Sea Level Rise |
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|u http://dpanther.fiu.edu/dpService/dpPurlService/purl/FI15061893/00001 |y Click here for full text |
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|3 Host material |u http://www.jstor.org/stable/4300338?seq=1#page_scan_tab_contents |y A Search for Scale in Sea-Level Studies |
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|a http://dpanther.fiu.edu/sobek/content/FI/15/06/18/93/00001/ FI15061893_thm.jpg |
