The 154-year record of sea level at San Francisco: extracting the long-term trend, recent changes, and other tidbits

2010 ◽  
Vol 36 (3-4) ◽  
pp. 545-559 ◽  
Author(s):  
Laurence C. Breaker ◽  
Alexander Ruzmaikin
Keyword(s):  
Sea Level ◽  
San Francisco ◽  
Term Trend ◽  
Long Term Trend

A long-term trend and temporal fluctuations of the sea level at the Polish Baltic coast

2011 ◽  
Vol 40 (2) ◽  
Author(s):  
Bernard Wiśniewski ◽  
Tomasz Wolski ◽  
Stanisław Musielak
Keyword(s):  
Spectral Analysis ◽  
Sea Level ◽  
Data Series ◽  
Sea Level Changes ◽  
Mean Sea Level ◽  
Term Trend ◽  
Baltic Coast ◽  
Long Term Trend ◽  
Linear Trends

AbstractThe analysis of sea level record series along the Polish coast is presented. The main aim was to identify linear trends in the sea level changes at the coastal (Świnoujście, Kołobrzeg, Ustka, Łeba, Władysławowo, Hel, Gdynia, Gdańsk), lagoonal (Trzebież, Tokmicko) and riverine (Szczecin) gauge stations. The analysis showed individual coastal stations to differ in the rate of sea level changes. During 60 years of continuous observations (1947–2006), the differences varied from 1.0 (the western part of the coast) to 2.5 mm year−1 (the eastern part of the coast). The longest, more than 100-yr-long data series showed the sea level rise in Świnoujście and Kołobrzeg to be about 0.5 mm year−1; 1.57 mm year−1 being revealed in Gdańsk. Spectral analysis applied to the data showed numerous fluctuations and cyclicity in changes of the annual mean sea level at the Polish coast. A distinct, major 3-year cycle was revealed. In addition, three secondary cycles of 4.6, 6.7, and 8.6 years were present in the data, more or less clearly identifiable at individual stations.

scholarly journals Nonlinear absolute sea-level patterns in the long-term-trend tide gauges of the East Coast of North America

2021 ◽  
Vol 10 (1) ◽  
pp. 1-15
Author(s):  
Alberto Boretti
Keyword(s):  
North America ◽  
Sea Level ◽  
East Coast ◽  
Tide Gauge ◽  
Tide Gauges ◽  
Sea Levels ◽  
Term Trend ◽  
The Absolute ◽  
Long Term Trend

Abstract The paper provides an estimate of the latest relative and absolute rates of rise and accelerations of the sea levels for the East Coast of North America. The computation is based on the long-term trend (LTT) tide gauge records of the relative sea levels and the Global Navigation Satellite System (GNSS) time series of the absolute position of fixed dome nearby the tide gauges. The GNSS result is used to infer the subsidence or uplift of the tide gauge instrument. The data of 33 LTT tide stations with more than 80 years of data are shown. The average relative sea-level rise is +2.22 mm/yr. subjected to a small, positive average acceleration of +0.0027 mm/yr2. The average absolute velocity of the tide gauge instruments is −0.52 mm/yr. translating in an average absolute sea-level rise of +1.70 mm/yr. This is the first paper publishing a comprehensive survey of the absolute sea-level rates of rise along the East Coast of North America using the reliable information of relative sea-level rates of rise from LTT tide gauges, plus the absolute subsidence rates from GNSS antennas that are close to the tide gauges installations.

A study of sea level variability and its long-term trend in the South China Sea

2016 ◽  
Vol 35 (9) ◽  
pp. 22-33 ◽  
Author(s):  
Ying Xu ◽  
Mingsen Lin ◽  
Quan’an Zheng ◽  
Qingtao Song ◽  
Xiaomin Ye
Keyword(s):  
South China Sea ◽  
Sea Level ◽  
South China ◽  
The South China Sea ◽  
The South ◽  
Sea Level Variability ◽  
Term Trend ◽  
China Sea ◽  
Long Term Trend

scholarly journals ANALYSIS OF THE CONDITIONS OF STORM SITUATIONS IN THE AREA OF GENICHESK MARINE HYDROLOGICAL STATION

2021 ◽  
Vol 1 (6) ◽  
pp. 139-143
Author(s):  
A.A. Polozok ◽  
◽  
Keyword(s):  
Statistical Analysis ◽  
Trend Analysis ◽  
Sea Level ◽  
Descriptive Data ◽  
Term Trend ◽  
Level Data ◽  
Data Statistics ◽  
Long Term Trend ◽  
Hydrological Station

A statistical analysis of urgent sea level data in the area of the marine hydrological station Genichesk for the period 1996–2013 was carried out, including the preparation of descriptive data statistics for the studied variation series. During the specified period, 8 most dangerous storm situations were identified. The analysis of storm situations has been carried out, including it has been established at what speeds and directions of the wind dangerous surges occur. It is concluded that dangerous storm surge situations in the study area arise due to the action of winds in the E, NE, ESE, ENE directions with a speed of more than 20 m/s. Dangerous storm driven situations appear when the winds are from NW, WNW directions at a speed of more than 15 m/s. The trend analysis of the variation series showed that there is a long-term trend towards an increase in sea level values in the area of the Genichesk marine hydrological station. This means that in the long term, it may be necessary to revise towards an increase in the critical sea level marks for dangerous rises and falls in sea level.

NAEP Trends: Main NAEP vs. Long-Term Trend

2010 ◽  
Author(s):  
Albert E. Beaton ◽  
James R. Chromy
Keyword(s):  
Term Trend ◽  
Long Term Trend

Environmental behavior and potential driving force of bisphenol A in the Elbe River: A long-term trend study

2020 ◽  
pp. 143251
Author(s):  
Zhenyu Huang ◽  
Pei Hua ◽  
Zhenyu Wang ◽  
Ruifei Li ◽  
Liang Dong ◽  
...  
Keyword(s):  
Bisphenol A ◽  
Driving Force ◽  
Environmental Behavior ◽  
Elbe River ◽  
Trend Study ◽  
Term Trend ◽  
The Elbe River ◽  
Long Term Trend
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