NDLI: Sea level trends at locations of the United States with more than 100 years of recording

Content Provider	Springer Nature Link
Author	Parker, Albert
Copyright Year	2012
Abstract	The paper presents the sea level rises (SLR) computed for the United States tide gauges with more than 100 years of recording. It is shown that the monthly sea levels oscillate about an almost linear longer-term trend with important multidecadal periodicities. The SLR time history is computed by linear fitting of 20, 30 and 60 years of data up to a given time (SLR$_{20}$, SLR$_{30}$ and SLR$_{60}$) and is compared to the value obtained by considering all the data. It is shown that SLR$_{60}$ has smaller oscillations, while SLR$_{20}$ and SLR$_{30}$ have much larger and frequent fluctuations. While SLR$_{60}$ may oscillate ±10–30 % about the latest longer-term value, SLR$_{30}$ may fluctuate ±50–100 % and SLR$_{20}$ ± 100–200 %. The values obtained by considering all the data with a minimum of 60 years (SLR$_{A}$) also fluctuate ±5–15 % about the latest longer-term value. This indicates the need to use the time history of SLR$_{60}$ or SLR$_{A}$ when the record is longer than 60 years to assess the accelerating trend. For all the stations, the sea levels regularly oscillate about the linear longer-term trend, and if acceleration has to be computed, this is eventually negative, that is, the SLR is reducing.
Starting Page	1011
Ending Page	1021
Page Count	11
File Format	PDF
ISSN	0921030X
Journal	Natural Hazards
Volume Number	65
Issue Number	1
e-ISSN	15730840
Language	English
Publisher	Springer Netherlands
Publisher Date	2012-09-25
Publisher Place	Dordrecht
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Sea level rise Sea level acceleration Climate change Sea level oscillations Teleconnections Geophysics/Geodesy Environmental Management Civil Engineering Natural Hazards Geotechnical Engineering & Applied Earth Sciences Hydrogeology
Content Type	Text
Resource Type	Article
Subject	Atmospheric Science Water Science and Technology

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