Tide Gauge Records May Underestimate 20th Century Sea Level Rise
نویسندگان
چکیده
منابع مشابه
Are Long Tide Gauge Records in the Wrong Place to Measure Global Mean Sea Level Rise?
Ocean dynamics, land motion, and changes in Earth’s gravitational and rotational fields cause local sea level change to deviate from the rate of global mean sea level rise. Here we use observations and simulations of spatial structure in sea level change to estimate the likelihood that these processes cause sea level trends in the longest and highest-quality tide gauge records to be systematica...
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Currently regional mean sea level trends and variations are inferred from the analysis of several individual local tide gauge data that span only a long period of time at a given region. In this study, we propose using amodel to merge various tide gauge data, regardless of their time span, in a single solution, to estimate parameters representative of regional mean sea level trends. The propose...
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[1] Multi-century sea-level records and climate models indicate an acceleration of sea-level rise, but no 20th century acceleration has previously been detected. A reconstruction of global sea level using tide-gauge data from 1950 to 2000 indicates a larger rate of rise after 1993 and other periods of rapid sea-level rise but no significant acceleration over this period. Here, we extend the rec...
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The results from the study indicate that there is a rising trend of 1.9±0.4 mm per year in the sea level of Hong Kong. The effect of local atmospheric pressure variations on the amplitude of the annual sea level change is about 30% of the amplitude. It is also found that the interannual variations in the sea level of Hong Kong are related to El Nino and La Nina events that occur frequently in t...
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In 2002, Munk defined an important enigma of 20th century global mean sea-level (GMSL) rise that has yet to be resolved. First, he listed three canonical observations related to Earth's rotation [(i) the slowing of Earth's rotation rate over the last three millennia inferred from ancient eclipse observations, and changes in the (ii) amplitude and (iii) orientation of Earth's rotation vector ove...
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ژورنال
عنوان ژورنال: Eos
سال: 2016
ISSN: 2324-9250
DOI: 10.1029/2016eo059979