Sentences with phrase «measure sea height»

Not exact matches

With the threat that a warmer world would melt glaciers, NASA wanted his group to measure the ocean's height and track sea level rise.

In the early 1990s the TOPEX (Topography Experiment for Ocean Circulation) / Poseidon satellite, a joint American - French mission, shot into orbit armed with radar altimeters to measure the height of the sea surface.

Because water expands as it warms, that heat also meant that sea surface heights were record high, measuring about 2.75 inches higher than at the beginning of the satellite altimeter record in 1993.

Although CryoSat - 2 is designed to measure changes in the ice sheet elevation, these can be translated into horizontal motion at the grounding line using knowledge of the glacier and sea floor geometry and the Archimedes principle of buoyancy — which relates the thickness of floating ice to the height of its surface.

The group used novel sensors that stick like barnacles to the sea floor — allowing them to survive Ivan's fury — to measure wave height by monitoring water pressure.

The main means of measuring seas and waves is around 50 years old: Buoys at sea record the heights to which they're raised.

As part of this research, sea surface height has been measured from space using GPS signals reflected off the sea surface for the first time.

The joint NASA / NOAA / CNES / EUMETSAT Jason - 2 satellite measures sea surface height, which is especially useful in quantifying the heat stored and released by the oceans during El Niño years.

These towering, solitary walls of water can measure tens of meters in height and are difficult to predict, often occurring in calm seas with little warning.

Oceanographer Benjamin Hamlington set out to see if he could find an El Niño sea level rise signal around U.S. coasts, by putting together data from tide gauges and satellite altimeters, which measure sea surface heights.

From sea level, Mauna Loa reaches 13,680 feet in height, but when measured from its base at the ocean floor, this mammoth of a mountain clocks in at 30,080 feet.

From sea level, Mauna Loa reaches 13,680 feet in height, but when measured from its base at the ocean floor, this... Continue»

I can measure the height of my desk above the floor easily to within a couple of millimeters, even if I have a one - meter uncertainty in its absolute height above sea level.

They also measure a slightly different vaeiable: sea surface height (aka geocentric sea level, ie the height of the sea surface relwtive to the planet's center of gravity, rather than sea level proper, aka relative sea level, ie height of the sea surface relative to the solid Earth).

The video loop above shows satellite readings of sea surface height, an indirect measure of heating (because of the way warmer water expands).

So, in theory, this measurement could be converted into a measure of the sea surface height, i.e., the mean sea level.

Although CryoSat - 2 is designed to measure changes in the ice sheet elevation, these can be translated into horizontal motion at the grounding line using knowledge of the glacier and sea floor geometry and the Archimedes principle of buoyancy — which relates the thickness of floating ice to the height of its surface.

In addition, Sentinel - 3B will as well measure sea ice thickness and significant wave heights, the latter will be assimilated into MET Norway's wave forecast model, also a contribution to the Copernicus Marine Services.

Human emissions are for 90 % in the NH and one can see that the increase is measured at sea level (Barrow) in the NH first, reaching the same level some 6 months later at height (Mauna Loa) then in the SH at sea level (Samoa) some 15 months later and then in the SH at height (South Pole) some 2 years later:

Measuring the worlds average temperature to tenths of a degree is like trying to measure the «height» of the sea using a tide gauge in rough weather.

Tide gauges measure the height of the sea surface relative to coastal benchmarks.

Observed variations in sea surface height (SSH) measured by the TOPEX / Poseidon altimeter (left).

One satellite instrument called an altimeter detects currents by measuring horizontal differences in sea surface height.

The altimeter measures sea surface height by bouncing radar signals off the ocean and timing their echo.

We can't measure the rate that water goes out of the holes in the dam, nor their bore, nor their height, but we are allowed to measure to measure the size of the river mouth where it meets the sea (CO2 efflux).

Measuring sea level in this manner requires an assumption that we knew the height of these locations accurately at the time of the flooding.

Therefore, tidal datums are superior at measuring relative to the (local) coastline and local sea level, and geoid - based vertical datums are superior at measuring heights consistently over large areas including both ocean and land.

Indeed, sea level anomalies measured by Topex / Poseidon were over 20 centimeters in the equatorial Pacific when the phenomenon was at its height (and as much as 30 centimeters off the coast of Peru).