Patrick Henry says: «According to Aviso,
current sea level rise rates are 24cm / century, and the second derivative of the six year trend is negative — suggesting that 24 cm number will get smaller in the near future.»
Not exact matches
A recent study (pdf) estimated that at the
current rate of global warming, Manhattan will face a
sea level rise of 2 feet or more by 2080.
A 12 percent increase in the
rate of aquifer recharge from added precipitation, combined with a projected 3 - foot
rise in
sea level by the end of the century, would raise groundwater
levels in some parts of the city by an additional foot — up to 4 feet higher than
current levels.
«Dramatic
rises in
sea level are almost inevitable if we continue to emit greenhouse gases at the
current rate.»
Under
current projected
rates of sediment sinking and
sea -
level rise, the area of land at risk on deltas globally is expected to increase by at least half by 2100.
The
current rate of relative
sea -
level rise (the combined effect of land subsidence and
sea -
level rise) along parts of the coastal delta is nearly 8 to 9 mm per year.
Within 50 years, if
sea levels continue to
rise at the
current rate, the ocean will completely swamp the 10 - square - mile island.
Our modelled values are consistent with
current rates of Antarctic ice loss and
sea -
level rise, and imply that accelerated mass loss from marine - based portions of Antarctic ice sheets may ensue when an increase in global mean air temperature of only 1.4 - 2.0 deg.
For example, if climatologists and oceanographers only considered
sea level rise to predict coastal damages without regard to escalating
rates of beach - front home building, they would be as errant as would a coastal developer who assesses future risks based only on
current climate and
sea levels (and Professor Pielke has led the charge on such integrated approaches).
What this tells us is that «climate - change — driven acceleration» has been assumed ahead of time, and since the raw data failed to confirm the existence of such an acceleration («In stark contrast to this expectation however,
current altimeter products show the
rate of
sea level rise to have decreased from the first to second decades of the altimeter era.»
Human contribution so far to
sea level rise does not seem particularly significant, given the early 20th century
rate of
sea level rise is about the same as the
current rate.
Those who understand the science also realise that the increase of temperature in the mid 20th and in the late 20th century were similar, that the
current rate of
sea level rise is similar to
rates at other times in the 20th century.
Current sea -
level rise rate estimates hover around a 1 meter
rise in 100 years.
The
current rate of
sea level rise is 2.4 mm / year, which is less than one foot per century.
To come to their findings, the authors used a mixture of paleoclimate records, computer models, and observations of
current rates of
sea level rise, but «the real world is moving somewhat faster than the model,» Hansen says.
If the melting
rate continues to stay within those two points, and given that the
current contribution to
sea level from the Greenland Ice Sheet is only about 0.1 mm / year, we won't see a lot of
sea level rise until later this century.
I read an interesting article from some researchers in NC who had found — locally — that there had been no
sea level rise until ~ 1970 (don't hold me to the date) and that the
current rate was on the order of 8 - 10 inches / century.
At the
current rate of
sea level increase, a 1 meter
rise is 300 years away: No tax.
This is still 3 to 6 times the
current rate of
sea level rise, but less than the staff's proposal of using RPC8.5.
Of the approximate 1.25 inches per decade of
current sea level rise, researchers estimate that globally, glaciers and ice caps — among which Alaska is making the biggest contribution — are contributing perhaps more than 20 percent of this
rate.
The
current rate of
sea level rise is around 3.4 mm / year, but this
rate is growing over time, on top of year - to - year ups and downs.
Current rate of the
sea level rise is 2 - 3 mm per year, and anthropogenic influence can not be detected.
Satellite data, which manifest the highest short - term
rates of
sea -
level rise (but also great measurement uncertainties) belie your extravagant claims: the
current rate is only 3.2 mm / year (https://climate.nasa.gov/vital-signs/
sea-
level/).
«Trends and acceleration in global and regional
sea levels since 1807» «Evaluation of the global mean
sea level budget between 1993 and 2014» «Considerations for estimating the 20th century trend in global mean
sea level» «New estimate of the
current rate of
sea level rise from a
sea level budget approach» «Reassessment of 20th century global mean
sea level rise» «The increasing
rate of global mean
sea -
level rise during 1993 — 2014» «Unabated global mean
sea -
level rise over the satellite altimeter era» «An increase in the
rate of global mean
sea level rise since 2010»
One key subtext to these findings is that scientists expect the
rise in
sea levels to accelerate in coming years, beyond the
current estimated
rate of 3.4 millimeters per year.
''
current altimeter products show the
rate of
sea level rise to have decreased from the first to second decades of the altimeter era.
''...
sea levels have indeed increased, which probably is a sign of warming... it is difficult to attribute the
current rate of
rise... to humans when we don't know how much of the
rise is natural.»
If the
rate of
sea level rise would double, for example, over the next century from the
current satellite estimates, we would expect a total
sea level rise of roughly about 1.2 - 1.4 ft. by 2100.
It also provides critical context for understanding whether
current sea levels and
rates of
sea level rise are unusual.
The data aligns with the
current rate of
sea level rise of about 3 millimeters or 0.1 inches per year.
After the Holocene Optimum ended about 5,000 years ago and
sea level rise slowed, California's
current rate of coastal erosion decreased to about 10 to 30 cm / year.
The
current science on the
rate of
sea level rise in 1993 is ~ 1.8 mm per yr.
The
current long term
sea level rise rate is 2.7 mm per year and the global warming
rate is about 0.1 deg C per decade, not IPCC's 0.2 deg C per decade.
If the CO2 concentration were to be stabilized to 400pmm from now on, the
sea levels would be expected continue to
rise for a couple more centuries — though at a slowing
rate — before they equilibrate to
current concentrations.
And once again, there is nothing unusual in either
current sea levels (they have been higher, not that long ago), or
sea level rise rates (they are perfectly normal at any time scale) or
current temperatures, or
current temperature fluctuation
rates.
The Thwaites Glacier alone is contributing about 10 % to the
current globally averaged
rate of
sea level rise, which is about 0.13 inches per year, Joughin says.
And if you happen to live in Bangladesh or other low lying regions, even the
current rate [of
sea level rise] is important.»
In addition, there are no guarantees that the
current rate will be maintained, since many studies have shown the likelihood of a higher
rate of
sea level rise as global warming continues.
They are talking about the dangers of anthropogenic global warming, but include the
sea level rise from all warming effects, most of which occured long before we were burning fossil fuels at anywhere near
current rates.
This coincides with post-1970s global warming, as expected, given point 1: «New estimate of the
current rate of
sea level rise from a
sea level budget approach» «Recent global
sea level acceleration started over 200 years ago?»
And what net contribution to
sea level rise will result if the
current WAIS thinning
rate continues unabated?
The
current rate of
sea level rise is historically exceptional.
So the
current rate of 3 cm per decade of
sea level rise is only 1/2 of the background natural
rate of 6 cm per decade.
After all, the
current rate of
sea level rise is still very slow, at about two millimeters every year.
About a third of the
current rate of
sea level rise is from thermal expansion of the oceans (the water expands like mercury in a thermometer), because they are absorbing about 90 percent of the increased heat from climate change.
So one could compare
rate of
rising sea levels of MWP, LIA, and during the
current period in which we recovering from the Little Ice Age - the time period after 1850.
Burgmann isn't too worried about
sea level rise causing more earthquakes or volcanic eruptions though, noting that catastrophic
rates of
sea level rise in the future are uncertain and that the
current rate of
rise — about 0.12 inches per year (3 millimeters per year)-- isn't enough to destabilize the crust.
The
current rate of
sea level rise is not unusual versus the late 1940's and early 50's, which is an era prior to the huge increase in consumer / industrial CO2 emissions.
All of the analyses find a mid century peak in the
rate of
sea level rise, although most of the analyses find the
current peak to be higher.
Per a recent paper by Fasullo et al, «In stark contrast to this expectation however,
current altimeter products show the
rate of
sea level rise to have decreased from the first to second decades of the altimeter era.»