Sentences with phrase «of sea level measurements»

Steven, speaking of satellites, how confident are you of their sea level measurement with the accuracy under 1 mm?

Not exact matches

It's directly measurable by sea level as most of the rises we are seeing are due to nothing more than thermal expansion (even the skeptics don't argue that, the measurements are solid, and there's no explanation other than «it's getting hotter»).

But the study, published today in Earth's Future, finds that scientists won't be able to determine, based on measurements of large - scale phenomena like global sea level and Antarctic mass changes, which scenario the planet faces until the 2060s.

That measurement included only the height above the average level of the sea and did not consider the depth of the wave trough.

While satellites have provided consistently good data for years, the next frontier in sea level rise measurement is a new type of radar that can capture a more crisp, higher - resolution picture of sea surface heights.

In addition, GOCE data could be used to help validate satellite altimetry measurements for an even clearer understanding of ice - sheet and sea - level change.

By comparing several years of measurements, climate researchers and oceanographers can now draw conclusions about changes in sea level and ocean currents.

Raw data collected from altimeters have been re-processed and collated with wind speed data from scatterometers and sea level measurements from tide gauges, to show the spatial structure of each storm.

Further measurements of sea level height, water temperature and salinity should help scientists unravel the mystery of the bulge.

The two measurements, plus warming of the deep ocean, would equal the global sea - level rise of 2.78 millimeters over the last decade.

New measurements from a NASA satellite have allowed researchers to identify and quantify, for the first time, how climate - driven increases of liquid water storage on land have affected the rate of sea level rise.

«The tide gauge measurements are essential for determining the uncertainty in the GMSL (global mean sea level) acceleration estimate,» said co-author Gary Mitchum, USF College of Marine Science.

(Parenthetically, tide gauge measurements of sea level are made relative to the adjacent land, and have shown sea level rises encroaching on the shoreline).

New research published this week in the Journal of Climate reveals that one key measurement — large - scale upper - ocean temperature changes caused by natural cycles of the ocean — is a good indicator of regional coastal sea level changes on these decadal timescales.

Combining POLENET measurements of gravity, sea level, and the atmosphere will link ice sheet change to the global earth system.

Measurements of ice sheet elevation changes indicate the volume of ice lost, and hence the contribution to sea levels, he tells Carbon Brief.

This is based on the following graph showing satellite measurements of sea levels over 2010:

Satellite measurements of the Patagonian icefields suggest that they are currently rapidly receding and thinning, with a measureable contribution to eustatic sea level rise2.

Our new study, published today in the journal Earth's Future, finds that — at least from measurements of global sea level and continental - scale Antarctic ice - sheet changes — scientists won't be able to tell which road the planet is on until the 2060s.

Recent methane measurements at Terceira Island, Azores, Portugal and Tae - ahn Peninsula, Republic of Korea (See http://www.esrl.noaa.gov/gmd/dv/iadv/index.php) in the context of outlier data points over the last decade at sites such as Storhofdi, Vestmannaeyjar, Iceland, and reports of methane releases from the Arctic seabed, tell us that at current levels of AGW, the Earth's sea - floor methane systems are not stable.

Pen y Fan is 886 meters above sea level, or 2,907 feet in British imperial measurement and can seem benign and easy on a cool spring day, with hundreds of others climbing the well - trodden path known as the «M4» (after the nearby motorway that runs through south Wales) up the mountain.

A detailed body of literature is on hand — alluding to Wagner, Dürer, the measurements of the concentration camps, the geographical height of the White Cube gallery above sea level — to help you construct additional meanings.

Seems quite a bit easier to go with the tidal gauge record; it has its complications, but at least you are starting with reasonably direct measurements of sea level.

Note that this sampling noise in the tide gauge data most likely comes from the water sloshing around in the ocean under the influence of winds etc., which looks like sea - level change if you only have a very limited number of measurement points, although this process can not actually change the true global - mean sea level.

If you want to insist on the relation between temperature and sea level then it's necessary to question the accuracy of our measurements of one or the other — or both.

Very recent, wide ranging review of temperature measurements in the oceans with a detailed discussion of the accuracy of the data, planetary energy balance and the effect of the warming on sea levels.

Has realclimate ever done (or considered doing) an entry about the immense contribution that satellite measurements have made in the past two - three decades, in helping us to understand various components of the earth system (e.g., vegetation, ozone, ice sheet mass, water vapor content, temperature, sea level height, storms, aerosols, etc.)?

Shown is the past history of sea level since the year 1700 from proxy data (sediments, purple) and multiple records from tide gauge measurements.

Mike's work, like that of previous award winners, is diverse, and includes pioneering and highly cited work in time series analysis (an elegant use of Thomson's multitaper spectral analysis approach to detect spatiotemporal oscillations in the climate record and methods for smoothing temporal data), decadal climate variability (the term «Atlantic Multidecadal Oscillation» or «AMO» was coined by Mike in an interview with Science's Richard Kerr about a paper he had published with Tom Delworth of GFDL showing evidence in both climate model simulations and observational data for a 50 - 70 year oscillation in the climate system; significantly Mike also published work with Kerry Emanuel in 2006 showing that the AMO concept has been overstated as regards its role in 20th century tropical Atlantic SST changes, a finding recently reaffirmed by a study published in Nature), in showing how changes in radiative forcing from volcanoes can affect ENSO, in examining the role of solar variations in explaining the pattern of the Medieval Climate Anomaly and Little Ice Age, the relationship between the climate changes of past centuries and phenomena such as Atlantic tropical cyclones and global sea level, and even a bit of work in atmospheric chemistry (an analysis of beryllium - 7 measurements).

The data come from a multitude of sources that include not only temperature measurements but also commensurate steric sea level rise.

The issues relating to sea level rise and the global water budget can only be addressed when the record of satellite gravity measurement from GRACE achieves adequate duration.

Given all the independent lines of evidence pointing to average surface warming over the last few decades (satellite measurements, ocean temperatures, sea - level rise, retreating glaciers, phenological changes, shifts in the ranges of temperature - sensitive species), it is highly implausible that it would lead to more than very minor refinements to the current overall picture.

Here's an excerpt describing how the measurements on the six glaciers in the study relate to projections of sea - level rise:

The data - gathering and environmental monitoring capabilities of the FishPi may include temperature readings (air and sea), salinity and pH measurements, barometric monitoring, light levels, and more, with some of the data or images being relayed in real - time.

ScienceDaily (Oct. 3, 2008)-- Arctic sea ice extent during the 2008 melt season dropped to the second - lowest level since satellite measurements began in 1979, reaching the lowest point in its annual cycle of melt and growth on Sept. 14, according to researchers at the University of Colorado at Boulder's National Snow and Ice Data Center.»

At the same time, the GRACE gravitational - anomaly satellites, the most accurate method of measurement we have, showed sea level actually falling from 2003 — 2009.

All of the different satellite measurements agree with that, but perhaps even more interesting is that the European RSL measurement shows that the sea level in 2011 was even lower than it was back in 2005.

Vertical land movements such as resulting from glacial isostatic adjustment (GIA), tectonics, subsidence and sedimentation influence local sea level measurements but do not alter ocean water volume; nonetheless, they affect global mean sea level through their alteration of the shape and hence the volume of the ocean basins containing the water.

In the coming months, ClimateDialogue.org will host discussions on such topics as climate sensitivity to CO2, sea level rise, the reliability of temperature measurements, the reliability and usefulness of climate models, and the extent to which oceans can store heat.

For the period before 1870, global measurements of sea level are not available.

To extract the signal of sea level change due to ocean water volume and other oceanographic change, land motions need to be removed from the tide gauge measurement.

Despite measurements of total heat absorbed by the oceans by Levitus et al. (2000) and Levitus et al. (2001), «20th - century sea level remains an enigma — we do not know whether warming or melting was dominant, and the budget is far from closed,» according to Munk (2003).

Measurements of present - day sea level change rely on two different techniques: tide gauges and satellite altimetry (Section 5.5.2).

a) People would find it interesting to take measurements of c02 b) Some of us are increasingly sceptical about «official» figures - such as the nonsensical global temperatures since 1850, sea levels and co2 measurements.

Lower troposphere temperature data represents the temperature of the atmosphere at approximately 3000 meters above sea level, as determined by satellite measurements.

I attribute both the «global» (dominated by Atlantic basin measurement points) and European supposed «rise» in sea level to tectonic subsidence at the passive margin combined with the trailing edge of the great melt of 10K years ago.

How accurate or valuable are satellite measurements of sea - level rise?

Other evidence surrounding the original placing of the benchmark is less clear, but we do have one positive measurement of where the benchmark stood relative to sea level taken in 1888 by the then Government meteorologist, Commander J. Shortt R.N..

The primary danger from global warming was supposed to be the sea level rise from melting ice caps but this hasn't occurred either and satellite measurements show that the rate of sea level rise has in fact decreased in 2004 to 0.37 mm / year in the Atlantic and 0.15 mm / year in the Pacific.

Three years of measurements from CryoSat show that the Antarctic Ice Sheet is now losing 159 billion tonnes of ice each year, enough to raise global sea levels by 0.45 mm per year.