The researchers found that as external forcing increases in strength over the 21st century,
sea level variability associated with the overturning circulation becomes dominant.
Not exact matches
Periods that are of possibly the most interest for testing sensitivities
associated with uncertainties in future projections are the mid-Holocene (for tropical rainfall,
sea ice), the 8.2 kyr event (for the ocean thermohaline circulation), the last two millennia (for decadal / multi-decadal
variability), the last interglacial (for ice sheets /
sea level) etc..
There are many patterns of behaviour particularly in the Pacific,
associated with El Nino
variability — possibly related to Vanuatu's lack of actual
sea level rise over the last 40 years.
«Regional
variability in
sea level associated with large - scale ocean circulations, with magnitude + / - 20 cm since 1993.»
The study demonstrates that observation - based interpretations, highlighting the role of winds in past regional
sea level variability, are not inconsistent with the dominance of AMOC -
associated changes in the 21st century.
These changes combined with higher
sea levels and
associated storm surges, more intense droughts, and increased precipitation
variability are projected to lead to increased stresses to water, agriculture, economic activities and urban and rural settlements (high confidence).
«However, Fig. 15 and the
associated uncertainties discussed in Section 3.4 show that long term estimates of time variable
sea level acceleration in 203 year global reconstruction are significantly positive, which supports our previous finding (Jevrejeva et al., 2008a), that despite strong low frequency
variability (larger than 60 years) the rate of
sea level rise is increasing with time.»
On decadal timescales, wind stress
associated with ENSO and IOD is the major cause for decadal
sea level variability north of 20 ° S.