Sentences with phrase «satellite sea level record»

Acceleration the satellite sea level record imminent.

«Sea level rise accelerating: acceleration in 25 - year satellite sea level record.»

Not exact matches

We know that sea levels are increasing thanks to the satellite observations, collated by NASA's Goddard Space Flight Center, as well as coastal tide gauge records monitored by Australia's leading science body, the CSIRO.

Some previous decades displayed similarly fast rates, and longer satellite records will be needed to determine unambiguously whether sea - level rise is accelerating.

Background shading in the seas indicate the observed sea level change from 1993 to 2016 recorded by satellites.

They compared existing National Oceanic and Atmospheric Administration (NOAA) records of upper - ocean temperatures in coastal waters for each U.S. ocean coastline with records of actual sea level changes from 1955 to 2012, and data from U.S. / European satellite altimeter missions since 1992.

The satellites provide long - term, continuous information about what's happening on the ocean's surface, recording sea level and surface temperatures, for example.

In a second step, we apply the method to reconstructing 2 - D sea level data over 1950 — 2003, combining sparse tide gauge records available since 1950, with EOF spatial patterns from different sources: (1) thermosteric sea level grids over 1955 — 2003, (2) sea level grids from Topex / Poseidon satellite altimetry over 1993 — 2003, and (3) dynamic height grids from the SODA reanalysis over 1958 — 2001.

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.

Last year, Arctic sea ice fell to the lowest level ever recorded by satellite, 39 percent lower than the long - term average from 1979 to 2000.

«R. Gates says: January 11, 2011 at 10:31 am We've got the lowest January levels of Arctic sea ice ever on satellite record following the lowest December level ever.»

We've got the lowest January levels of Arctic sea ice ever on satellite record following the lowest December level ever.

Yet the newest empirical research completely counters the fears and beliefs of the CAGW crowd: over the satellite era, some 30 + years, Antarctica's ice sheets have slightly grown and the South Pole's sea ice extent is at record levels.

I always take comfort from the fact that if people like Eli don't believe in the temperature satellite record, then it surely follows that they obviously won't believe in the sea level and sea ice satellites either.

Paul Williams, climate scientist at the University of Reading, agreed: «All the thermometer readings, satellite observations, tree rings, ice cores and sea - level records would have to be wrong.»

Local sea level change, which is what really matters, is more directly and more effectively estimated from tide gauge records than from satellites.

But the expected acceleration due to climate change is likely hidden in the satellite record because of a happenstance of timing: The record began soon after the Pinatubo eruption, which temporarily cooled the planet, causing sea levels to drop.»

This especially applies to interpretation of acceleration in GMSL using only the 20 - year record of from satellite altimetry and to evaluations of short records of mean sea level from individual gauges.»

Combine the satellite trend with the surface observations and the umpteen non-temperature based records that reflect temperature change (from glaciers to phenology to lake freeze dates to snow - cover extent in spring & fall to sea level rise to stratospheric temps) and the evidence for recent gradual warming is, well, unequivocal.

According to the University of Washington Polar Science Center, Arctic sea - ice levels have dropped to record lows in July 2011, with sea ice volume now 47 percent lower than it was in 1979, when satellite records began.

An evaluation of the status of late Holocene sea level rise constructions is provided in a recent proposal by an international group of sea level experts (including Kopp), entitled: Towards a unified sea level record: assessing the performance of global mean sea level reconstructions from satellite altimetry, tide gauges, paleo ‐ proxies and geophysical models.

However the mainstream media (worldwide) did not reveal that the same source also reported that in the Antarctic, the sea - ice extent there was at a record high level within the same short satellite observational period.

Now, as you say, there are all sorts of problems with the historical records of sea level but — just as with temperatures — it is likely that measurements from the satellites will be more accurate and less prone to random variation and sampling error than measurements from ground based sensors.

Total sea ice extent for the previous three months was near or below the level of 2007, the year with the lowest minimum summer ice extent during the satellite record.

In September 2007 sea ice extent reached its lowest level since the satellite record began in 1979; the monthly extent, 4.28 × 106 square kilometers, surpassed the previous sea ice minimum record (set in 2005) by 1.28 × 106 square kilometers [Stroeve et al., 2008].

... Chambers et al. prudently state that «one should be cautious about computations of acceleration in sea level records unless they are longer than two cycles of the oscillation,» noting that this advice «applies to interpretation of acceleration in GMSL using only the 20 - year record of satellite altimetry and to evaluations of short records of mean sea level from individual gauges.»

In fact, we have multiple independent lines of evidence for warming, ranging from several different temperature records (land, sea surface, deep sea, atmosphere at different levels, several kinds of satellite, glaciers, biologic responses...), all congruent.

Global sea ice (Arctic plus Antarctic) continues to track at record low levels in the satellite record, but the deviation from average has moderated compared to what was observed in November.

Global mean sea level is measured using tide gauge records and also, since 1993, satellite data.

«The amount of floating ice in the Arctic's Bering Sea — which had long been expected to retreat disastrously by climate - Cassandra organisations such as Greenpeace — reached all - time record high levels last month, according to US researchers monitoring the area using satellites.»

NSIDC 5 day averaged Antarctic sea ice extent is now at a record low level for the date, since satellite measurements began in 1979:

«In 2003 the satellite altimetry record was mysteriously tilted upwards to imply a sudden sea level rise rate of 2.3 mm per year... This is a scandal that should be called Sealevelgate.

So how does Mörner explain the global sea level rise record, in which both satellite altimeters and tide gauges show average global sea level rise on the order of 3 mm per year (Figure 1)?

«Sure, they'll probably try to confuse us with trick questions: Like why, apart from natural 1998 and 2015 El Nino spikes, satellites haven't recorded any statistically significant global warming for nearly two decades; why sea levels have been rising at a constant rate of 7 inches per century without acceleration; and why no category 3 - 5 hurricanes have struck the U.S. coast since October 2005 — a record lull since 1900.

A combination of 33 - year satellite records, measurements made over the past century, and long - term proxy analysis suggests Arctic sea ice may be at its lowest level for more than 1,000 years.

The first is a satellite record showing that the sea level has actually fallen four inches around Tuvalu since 1993 when the hundred - million dollar international TOPEX / POSEIDON satellite project record began.

With Arctic sea ice reaching its lowest level in the satellite record after an astonishingly rapid summer melt, the question of whether disappearing sea ice might lead to more extreme winters in Europe and North America needs more scrutiny.

First, although there were no satellite records, other studies have shown that Arctic sea ice receded to a low in the 1930s and 1940s and then recovered again to a high level by the late 1970s, when satellite measurements began.

The satellite altimeter record of sea - level change from TOPEX / Poseidon, Jason - 1, Jason - 2, and Jason - 3 is now approaching 25 y in length, making it possible to begin probing the record for climate - change — driven acceleration of the rate of GMSL change (6).

The former hasn't ever directly compared satellite data with tide - gauge records over the exact same period, and the latter just lies about it, and sea - level change in general.

Comparisons with the satellite altimeter records show a reasonable coherence since the West Pacific sea level has risen faster than the global mean (at least partially related to the number of recent La Niña events).

It is easy to show a) that temperature has risen in several multi-decadal spurts since modern measurements started in 1850, b) that atmospheric CO2 has risen since measurements started in 1958, c) that Arctic sea ice has shrunk since satellite measurements started in 1979, d) that sea level has risen, again in multi-decadal spurts, since tide gauge records started in the 19th century, etc..