Sentences with phrase «century tide gauge data»

Not exact matches

Several previous analyses of tide gauge records1, 2,3,4,5,6 — employing different methods to accommodate the spatial sparsity and temporal incompleteness of the data and to constrain the geometry of long - term sea - level change — have concluded that GMSL rose over the twentieth century at a mean rate of 1.6 to 1.9 millimetres per year.

[Response: If you're interested in what happens in the 20th Century, then this proxy study is not the way to go but rather you should look at the tide gauge data.

The long - term tide gauges in the Mediterranean show sea - level trends for the 20th century in the range of 1.1 — 1.3 mm / yr whilst more recent satellite altimetry data reveals much larger increases in sea - level throughout the basin towards the latter part of the century.

If you look at most data for the last 5 millennia, the rate of rise is smaller than we measured in the early 20th century with tide gauges.

«In our study we used sea level data measured by various tide gauges throughout the twentieth century to see how extreme sea level during hurricanes has changed with temperature.»

In the early 2000s, it was noticed that sea level rise was not accelerating when considering tide gauge data (and it had decelerated relative to the first half of the 20th century).

The 90 % confidence range for the linear twentieth century rise predicted by the semi-empirical model is 13 — 30 cm, whereas the observed interval (using two tide gauge data sets) is 14 — 26 cm.

-------- http://iopscience.iop.org/1748-9326/8/1/014013 Predictability of twentieth century sea - level rise from past data However, in combination, the use of proxy and tide gauge sea - level data up to 1900 AD allows a good prediction of twentieth century sea - level rise, despite this rise being well outside the rates experienced in previous centuries during the calibration period of the model.

Different approaches have been used to compute the mean rate of 20th century global mean sea level (GMSL) rise from the available tide gauge data: computing average rates from only very long, nearly continuous records; using more numerous but shorter records and filters to separate nonlinear trends from decadal - scale quasi-periodic variability; neural network methods; computing regional sea level for specific basins then averaging; or projecting tide gauge records onto empirical orthogonal functions (EOFs) computed from modern altimetry or EOFs from ocean models.

Acceleration of sea - level rise over the 20th century has already been inferred from tide - gauge data (3 ⇓ — 5), although sampling and data issues preclude a precise quantification.

All data from tide gauges in areas where land is not rising or sinking show instead a steady linear and unchanging sea level rate of rise from 4 up to 6 inches / century, with variations due to gravitational factors.