Abstract
Tide gauge data at seven sites of the Permanent Service for Mean Sea Level (PSMSL), with information for relative sea-level during the past 140-200 yr, were analyzed to examine the rates and causes of the global sea-level rise (GSLR) during the twentieth century. By subtracting linear trends for relative sea-level rise during the past 100 yr from the observed data, we get the apparent GSLRs of ∼1 mm yr-1 for five sites around the Baltic Sea and Brest. The rate for San Francisco is significantly larger than this, with an optimum value ∼2 mm yr-1. The spatial difference of ∼1 mm yr-1 between these sites is reasonably explained by the recent melting of the Greenland ice sheet with an equivalent sea-level rise of ∼1 mm yr-1. The predicted relative sea-level change for this melting scenario is 0.5 mm yr-1 at sites around the Baltic Sea and Brest, and 1.5 mm yr-1 for San Francisco. The residuals between observations and predictions, ∼0.5 mm yr-1 at all sites, may be contributed by thermal expansion of seawater and/or other melting sources. These results suggest the rate of twentieth-century GSLR to be 1.5 mm yr-1.
| Original language | English |
|---|---|
| Pages (from-to) | 1217-1222 |
| Number of pages | 6 |
| Journal | Quaternary Science Reviews |
| Volume | 24 |
| Issue number | 10-11 |
| DOIs | |
| Publication status | Published - May 1 2005 |
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All Science Journal Classification (ASJC) codes
- Global and Planetary Change
- Ecology, Evolution, Behavior and Systematics
- Archaeology
- Archaeology
- Geology
Cite this
Rates and causes of recent global sea-level rise inferred from long tide gauge data records. / Nakada, Masao; Inoue, Hiroshi.
In: Quaternary Science Reviews, Vol. 24, No. 10-11, 01.05.2005, p. 1217-1222.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Rates and causes of recent global sea-level rise inferred from long tide gauge data records
AU - Nakada, Masao
AU - Inoue, Hiroshi
PY - 2005/5/1
Y1 - 2005/5/1
N2 - Tide gauge data at seven sites of the Permanent Service for Mean Sea Level (PSMSL), with information for relative sea-level during the past 140-200 yr, were analyzed to examine the rates and causes of the global sea-level rise (GSLR) during the twentieth century. By subtracting linear trends for relative sea-level rise during the past 100 yr from the observed data, we get the apparent GSLRs of ∼1 mm yr-1 for five sites around the Baltic Sea and Brest. The rate for San Francisco is significantly larger than this, with an optimum value ∼2 mm yr-1. The spatial difference of ∼1 mm yr-1 between these sites is reasonably explained by the recent melting of the Greenland ice sheet with an equivalent sea-level rise of ∼1 mm yr-1. The predicted relative sea-level change for this melting scenario is 0.5 mm yr-1 at sites around the Baltic Sea and Brest, and 1.5 mm yr-1 for San Francisco. The residuals between observations and predictions, ∼0.5 mm yr-1 at all sites, may be contributed by thermal expansion of seawater and/or other melting sources. These results suggest the rate of twentieth-century GSLR to be 1.5 mm yr-1.
AB - Tide gauge data at seven sites of the Permanent Service for Mean Sea Level (PSMSL), with information for relative sea-level during the past 140-200 yr, were analyzed to examine the rates and causes of the global sea-level rise (GSLR) during the twentieth century. By subtracting linear trends for relative sea-level rise during the past 100 yr from the observed data, we get the apparent GSLRs of ∼1 mm yr-1 for five sites around the Baltic Sea and Brest. The rate for San Francisco is significantly larger than this, with an optimum value ∼2 mm yr-1. The spatial difference of ∼1 mm yr-1 between these sites is reasonably explained by the recent melting of the Greenland ice sheet with an equivalent sea-level rise of ∼1 mm yr-1. The predicted relative sea-level change for this melting scenario is 0.5 mm yr-1 at sites around the Baltic Sea and Brest, and 1.5 mm yr-1 for San Francisco. The residuals between observations and predictions, ∼0.5 mm yr-1 at all sites, may be contributed by thermal expansion of seawater and/or other melting sources. These results suggest the rate of twentieth-century GSLR to be 1.5 mm yr-1.
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U2 - 10.1016/j.quascirev.2004.11.006
DO - 10.1016/j.quascirev.2004.11.006
M3 - Article
AN - SCOPUS:14944357346
VL - 24
SP - 1217
EP - 1222
JO - Quaternary Science Reviews
JF - Quaternary Science Reviews
SN - 0277-3791
IS - 10-11
ER -