Yet you presume to lecture
us on sea level trends.
Finally, we project the number of nuisance flood days that we would expect from May 2015 - April 2016 based
on sea level trends trends alone and with the added influence of El Niño.
Residents of Fire Island, N.Y., will find no comfort in a new study
on sea level trends.
Only the Super El Nino in and 1998 and La Nina starting in 2010 did snot knockers
on the sea level trend.
Not exact matches
«If we went all out to slow the warming
trend, we might stall
sea level rise at three to six feet,» says Robert Buddemeier of Lawrence Livermore National Laboratory, who is studying the impact of
sea -
level rise
on coral reefs, «But that's the very best you could hope for.»
«Every time some unexpected change in any climate parameter happens (e.g.,
sea level going down), the question will be raised
on whether this will be a continuing
trend.
So far, the climate science used in courts has focused mostly
on overall
trends and gradual processes such as
sea level rise, said Michael Burger, executive director of the Sabin Center for Climate Change Law at Columbia Law School in New York, who said he has no financial stake in climate change litigation.
«[B] y making use of 21 CMIP5 coupled climate models, we study the contribution of external forcing to the Pacific Ocean regional
sea level variability over 1993 — 2013, and show that according to climate models, externally forced and thereby the anthropogenic
sea level fingerprint
on regional
sea level trends in the tropical Pacific is still too small to be observable by satellite altimetry.»
Dr. Jonathan Overpeck, director of the Institute for the Study of Planet Earth at the University of Arizona, and recipient of the shared 2007 Nobel Peace Prize for his role as a Coordinating Lead Author for the UN Intergovernmental Panel
on Climate Change (IPCC) Fourth Assessment, will address the
trend of droughts in the west and the vulnerability of coastal communities as they face
sea level rise coupled with increasing storm intensities.
After over a year of sideways and downward movement from late 2015 through early 2017, the most recent NASA report shows that over the past year an acceleration in
sea level rise has become visible
on the NASA graph, even with just a quick glance (then again, while the long term
trend is consistently upward, the annual
trend is so variable, that it's likely foolish
on my part to suggest a change in
trend based
on the most recent periods of increase which have only been occurring for less than 12 months).
Dr. Jonathan Overpeck, director of the Institute for the Study of Planet Earth at the University of Arizona, and recipient of the shared 2007 Nobel Peace Prize for his role as a Coordinating Lead Author for the UN Intergovernmental Panel
on Climate Change (IPCC) Fourth Assessment, will address the
trend of droughts in the west and the vulnerability of coastal communities as they face
sea level rise coupled with increasing storm intensities.
I focused
on Fig 2 of Rahmstorf 2012, which shows the rate of
sea level change in the form of 10 yr decadal
trends.
In fact when there is a year of heavy flooding, drainage can't keep up and
sea level drops, but this variation is superimposed
on the long term
trend of rising
seas.
You'll undoubtedly hear from some folks who question whether Maldives is threatened by rising
seas by pointing to scientific controversies over recent
sea -
level trends in the Indian Ocean, so I'll put up a link to relevant published literature
on Google Scholar here.
[Response: Current
trends in
sea level rise are larger (> 3mm / year), and estimates of future changes rely
on more that the excel linear regression routine.
If those
trends continue, it puts the world
on track for the highest predicted rises in temperature and
sea level.
> A new comment
on the post # 74 «Michael Crichton's State of Confusion» is > waiting for your approval > > Author: Hans Erren -LRB--RRB- > E-mail: erren21 @... > URL: > Whois:... > Comment: >
Sea -
level rise > > Although satellite data (TOPEX / POSEIDON (sic) and JASON) shows a much > steeper
trend over recent years (2.8 mm / yr) than the long term mean > estimates from tide gauges (1.7 to 2.4 mm / yr), each method compared to > itself does not indicate an accelleration.
So the main issue for me is that all «serious» studies show only «statistical
trends» having some effects
on some measurable quantities, (slight increase of average temperature, slight increase of
sea level, slight decrease of northern, but not southern,
sea ice,..)
--
Sea level continued to rise: Global mean sea level continued to rise during 2013, on pace with a trend of 3.2 ± 0.4 mm per year over the past two decad
Sea level continued to rise: Global mean
sea level continued to rise during 2013, on pace with a trend of 3.2 ± 0.4 mm per year over the past two decad
sea level continued to rise during 2013,
on pace with a
trend of 3.2 ± 0.4 mm per year over the past two decades.
But it's also clear that more science clarifying overall
trends in temperature over a mostly sub-zero continent will have little bearing
on what societies choose to do, or not do, related to accumulating greenhouse gases, warming and the resulting rise in
sea levels.
Canadian Ice Service, 4.7, Multiple Methods As with CIS contributions in June 2009, 2010, and 2011, the 2012 forecast was derived using a combination of three methods: 1) a qualitative heuristic method based
on observed end - of - winter arctic ice thicknesses and extents, as well as an examination of Surface Air Temperature (SAT),
Sea Level Pressure (SLP) and vector wind anomaly patterns and trends; 2) an experimental Optimal Filtering Based (OFB) Model, which uses an optimal linear data filter to extrapolate NSIDC's September Arctic Ice Extent time series into the future; and 3) an experimental Multiple Linear Regression (MLR) prediction system that tests ocean, atmosphere and sea ice predicto
Sea Level Pressure (SLP) and vector wind anomaly patterns and
trends; 2) an experimental Optimal Filtering Based (OFB) Model, which uses an optimal linear data filter to extrapolate NSIDC's September Arctic Ice Extent time series into the future; and 3) an experimental Multiple Linear Regression (MLR) prediction system that tests ocean, atmosphere and
sea ice predicto
sea ice predictors.
WMO will issue its full Statement
on the State of the Climate in 2017 in March which will provide a comprehensive overview of temperature variability and
trends, high - impact events, and long - term indicators of climate change such as increasing carbon dioxide concentrations, Arctic and Antarctic
sea ice,
sea level rise and ocean acidification.
Canadian Ice Service, 4.7 (+ / - 0.2), Heuristic / Statistical (same as June) The 2015 forecast was derived by considering a combination of methods: 1) a qualitative heuristic method based
on observed end - of - winter Arctic ice thickness extents, as well as winter Surface Air Temperature,
Sea Level Pressure and vector wind anomaly patterns and trends; 2) a simple statistical method, Optimal Filtering Based Model (OFBM), that uses an optimal linear data filter to extrapolate the September sea ice extent timeseries into the future and 3) a Multiple Linear Regression (MLR) prediction system that tests ocean, atmosphere and sea ice predicto
Sea Level Pressure and vector wind anomaly patterns and
trends; 2) a simple statistical method, Optimal Filtering Based Model (OFBM), that uses an optimal linear data filter to extrapolate the September
sea ice extent timeseries into the future and 3) a Multiple Linear Regression (MLR) prediction system that tests ocean, atmosphere and sea ice predicto
sea ice extent timeseries into the future and 3) a Multiple Linear Regression (MLR) prediction system that tests ocean, atmosphere and
sea ice predicto
sea ice predictors.
I didn't yet watch the entire session, but I'm wondering if anyone made a case regarding the lack of any long term worsening
trend in climate change related issues (
sea level rise, glacier melt, tropical systems, floods, extreme drought, tornadoes, etc) comparing pre 1950 (the consensus view of the birth of any potentially observable human footprint
on GW) to post 1950?
John Church, a top IPCC author at the Commonwealth Scientific and Industrial Research Organization in Australia, told Reuters he did not expect any impact
on the IPCC's core
sea level projections, which are not based
on past
trends.
The Harvard - led study said the new findings might affect projections of the future pace of
sea level rise, especially those based
on historical
trends.
We also compared how the observed number of nuisance flood days in 2014 compared to what would be expected based
on sea level rise
trends in each location.
At the risk of oversimplifying, the effects of groundwater storage can be differentiated between shallow - aquifer effects that modulate global
sea level on year to year and decade to decade timeframes, versus deep aquifer effects that modulate
sea level trends over centuries and millennia.
Over the long - term, melting of the West Antarctic Ice Sheet could yield as much as 10 to 14 feet of global average
sea level rise, with local
sea level rise varying considerably depending
on land elevation
trends, ocean currents and other factors.
This comment
on ENSO link to rainfall and drought reminded me of a recent WUWT post where they point out how
sea levels have a negative
trend over (gasp) the last 2 years.
That's consistent with other research
on longer term
trends in Greenland ice, and how these
trends contribute to
sea level rise.
Since current ice melt data could indicate variable climate
trends and aren't necessarily part of an accelerating
trend, the study warned that predictions of future
sea -
level rise should not be based
on measurements of glacial loss» Daily Mail.
A: «Internal variability versus anthropogenic forcing
on sea level and its components» B: «The rate of
sea -
level rise» C: «Quantifying anthropogenic and natural contributions to thermosteric
sea level rise» D: «Detection and attribution of global mean thermosteric
sea level change» E: «Long - term
sea level trends: Natural or anthropogenic?»
ocean temperatures, widespread melting of snow and ice, and rising global average
sea level,» are three disjoint sources of confirmation that give us reliable enough
trend information to establish consilience about what we may say after 2005
on HadCRUT4.
Canadian Ice Service; 5.0; Statistical As with Canadian Ice Service (CIS) contributions in June 2009 and June 2010, the 2011 forecast was derived using a combination of three methods: 1) a qualitative heuristic method based
on observed end - of - winter Arctic Multi-Year Ice (MYI) extents, as well as an examination of Surface Air Temperature (SAT),
Sea Level Pressure (SLP) and vector wind anomaly patterns and trends; 2) an experimental Optimal Filtering Based (OFB) Model which uses an optimal linear data filter to extrapolate NSIDC's September Arctic Ice Extent time series into the future; and 3) an experimental Multiple Linear Regression (MLR) prediction system that tests ocean, atmosphere, and sea ice predicto
Sea Level Pressure (SLP) and vector wind anomaly patterns and
trends; 2) an experimental Optimal Filtering Based (OFB) Model which uses an optimal linear data filter to extrapolate NSIDC's September Arctic Ice Extent time series into the future; and 3) an experimental Multiple Linear Regression (MLR) prediction system that tests ocean, atmosphere, and
sea ice predicto
sea ice predictors.
NOAA's
Sea Level Trends page shows
trend of increase since 1908/1909
on both ends of the canal.
Gavin Schmidt investigated the claim that tide gauges
on islands in the Pacific Ocean show no
sea level rise and found that the data show a rising
sea level trend at every single station.
World temperatures have been
on an upward
trend for 120 years but the
sea level trend during that time has remained relatively constant.
How much of the warming since 1850 would have occurred anyway, due to the natural long term
trend in place since 12,000 years ago — which caused 50 meters of
sea level increase, of which only 2 % is blamed
on humans?
IPCC synthesis reports offer conservative projections of
sea level increase based
on assumptions about future behavior of ice sheets and glaciers, leading to estimates of
sea level roughly following a linear upward
trend mimicking that of recent decades.
Actually Fielding's use of that graph is quite informative of how denialist arguments are framed — the selected bit of a selected graph (and don't mention the fastest warming region
on the planet being left out of that data set), or the complete passing over of short term variability vs longer term
trends, or the other measures and indicators of climate change from ocean heat content and
sea levels to changes in ice sheets and minimum
sea ice
levels, or the passing over of issues like lag time between emissions and effects
on temperatures... etc..
Canadian Ice Service, 4.7 (± 0.2), Heuristic / Statistical (same as June) The 2015 forecast was derived by considering a combination of methods: 1) a qualitative heuristic method based
on observed end - of - winter Arctic ice thickness extents, as well as winter Surface Air Temperature,
Sea Level Pressure and vector wind anomaly patterns and trends; 2) a simple statistical method, Optimal Filtering Based Model (OFBM), that uses an optimal linear data filter to extrapolate the September sea ice extent timeseries into the future and 3) a Multiple Linear Regression (MLR) prediction system that tests ocean, atmosphere and sea ice predicto
Sea Level Pressure and vector wind anomaly patterns and
trends; 2) a simple statistical method, Optimal Filtering Based Model (OFBM), that uses an optimal linear data filter to extrapolate the September
sea ice extent timeseries into the future and 3) a Multiple Linear Regression (MLR) prediction system that tests ocean, atmosphere and sea ice predicto
sea ice extent timeseries into the future and 3) a Multiple Linear Regression (MLR) prediction system that tests ocean, atmosphere and
sea ice predicto
sea ice predictors.
4) Most of the post-1950s
sea level rise is anthropogenic: «Internal Variability Versus Anthropogenic Forcing on Sea Level and Its Components» «The rate of sea - level rise» «Quantifying anthropogenic and natural contributions to thermosteric sea level rise» «Detection and attribution of global mean thermosteric sea level change» «Long - term sea level trends: Natural or anthropogenic?&raq
sea level rise is anthropogenic: «Internal Variability Versus Anthropogenic Forcing on Sea Level and Its Components» «The rate of sea - level rise» «Quantifying anthropogenic and natural contributions to thermosteric sea level rise» «Detection and attribution of global mean thermosteric sea level change» «Long - term sea level trends: Natural or anthropogenic?&r
level rise is anthropogenic: «Internal Variability Versus Anthropogenic Forcing
on Sea Level and Its Components» «The rate of sea - level rise» «Quantifying anthropogenic and natural contributions to thermosteric sea level rise» «Detection and attribution of global mean thermosteric sea level change» «Long - term sea level trends: Natural or anthropogenic?&raq
Sea Level and Its Components» «The rate of sea - level rise» «Quantifying anthropogenic and natural contributions to thermosteric sea level rise» «Detection and attribution of global mean thermosteric sea level change» «Long - term sea level trends: Natural or anthropogenic?&r
Level and Its Components» «The rate of
sea - level rise» «Quantifying anthropogenic and natural contributions to thermosteric sea level rise» «Detection and attribution of global mean thermosteric sea level change» «Long - term sea level trends: Natural or anthropogenic?&raq
sea -
level rise» «Quantifying anthropogenic and natural contributions to thermosteric sea level rise» «Detection and attribution of global mean thermosteric sea level change» «Long - term sea level trends: Natural or anthropogenic?&r
level rise» «Quantifying anthropogenic and natural contributions to thermosteric
sea level rise» «Detection and attribution of global mean thermosteric sea level change» «Long - term sea level trends: Natural or anthropogenic?&raq
sea level rise» «Detection and attribution of global mean thermosteric sea level change» «Long - term sea level trends: Natural or anthropogenic?&r
level rise» «Detection and attribution of global mean thermosteric
sea level change» «Long - term sea level trends: Natural or anthropogenic?&raq
sea level change» «Long - term sea level trends: Natural or anthropogenic?&r
level change» «Long - term
sea level trends: Natural or anthropogenic?&raq
sea level trends: Natural or anthropogenic?&r
level trends: Natural or anthropogenic?»
This is one reason why coastal engineers wrote a paper urging everyone to ignore the climate model predictions
on sea level and just watch the tide gauge
trends.
Depending where you look and in which decade they advance and retreat, but now with
sea level rising twice as fast as in the last century, you may be able to figure out that glaciers are melting more quickly, and that with several more degrees of warming they would be
on a downward
trend.
The map of regional mean
sea level trends provides an overview of variations in the rates of relative local mean
sea level observed at long - term tide stations (based
on a minimum of 30 years of data in order to account for long - term
sea level variations and reduce errors in computing
sea level trends based
on monthly mean
sea level).
Add
sea level rise and worsening storms
on top of that
trend and the crisis New Orleans faces is greatly amplified.
Keeling was a joke, in less than two years of «data gathering» he claimed to have shown a
trend and concluded that man - made
levels were rising — pretending to be measuring «pristine background
levels of carbon dioxide» from the top of the world's highest active volcano, surrounded by active volcanoes
on top of a great hot spot creating volcanoes in warm
seas rocked by thousands of earthquakes every year.
«We know that nuisance flooding is happening more often because of rising
sea levels, but it is important to recognize that weather and ocean patterns brought
on by El Niño can compound this
trend,» said Sweet.»
In 2011 there were many articles posted
on WUWT discussing the pause, indeed reversal, of the
trend in
sea level rise.