Sentences with phrase «used radar observations»

The team used radar observations captured by the European Earth Remote Sensing (ERS - 1 and -2) satellites to measure just how far the grounding line - the point where the glacier meets the land - had retreated.

Later in 1971, Goldstein refined the rotation period to be 58.65 + - 0.25 days using radar observations.

Not exact matches

Using satellite radar and helicopter observations, scientists at Laval University in Quebec and the University of Alaska at Fairbanks discovered that the more - than -150-square-mile Ward Hunt Ice Shelf on the north coast of Canada's Nunavut territory has split in half.

The team is already using a preliminary shape model, produced from radar observations of the asteroid.

Moreover, the partnership with China will likely continue, and the two nations are considering the development of a new family of satellites using radar instead of optical instruments, enabling the observation of forests even through clouds.

«These scientists combined citizen science observations with data from radar, satellites and weather predictions to understand the cues birds use in their migrations across continents,» said Liz Blood, program director in the National Science Foundation's Division of Environmental Biology, which funded the research through NSF's MacroSystems Biology Program.

French credited modern technology with making the detailed cloud - seeding observations possible, citing the use of ground - based radar as well as radar on UW's King Air research aircraft and multiple flights over the mountains near Boise.

Concurrently with the radar imaging, the scientists also used the radar transmitter at the Arecibo Observatory in Puerto Rico and a portion of the antennas that are part of the National Radio Astronomy Observatory's (NRAO) Very Long Baseline Array (VLBA) to perform an observation known as radar speckle tracking.

Radar is also widely used for meteor detection and observation.

Finnish Meteorological Institute makes observations of the atmosphere, sea and space at over 400 stations around Finland, and using remote sensing instruments such as radars and satellites.

That maneuver, NASA told USA Today will be the probe's «final opportunity for up - close observations of the lakes and seas of liquid hydrocarbons that spread across the moon's northern polar region, and the last chance to use its powerful radar to pierce the haze and make detailed images of the surface.»

Astronomers studied Toutatis, Geographos and Castalia using Earth - based radar observations during close approaches to the Earth.

Finnish Meteorological Institute has been doing estimates of two essential sea ice parameters — namely, sea ice concentration (SIC) and sea ice thickness (SIT)-- for the Bohai Sea using a combination of a thermodynamic sea ice model and Earth observation (EO) data from synthetic aperture radar (SAR) and microwave radiometer.

On May 3, 2007, team of astronomers (including Jean - Luc Margot; Stan Peale; Igor V. Holin; Raymond F. Jurgens; and Martin A. Slade) announced new evidence that Mercury has a partially molten core using new observations of fluctuations in Mercury's spin obtained with radar signals bounced off the planet from Earth (with the 305 - meter Arecibo, the 34 - meter Goldstone, and the 100 - meter Robert C. Byrd Green Bank radio telescopes).

The effort uses innovative ARM radar observations from the MC3E field campaign to evaluate a series of high - resolution simulations, which results in an improved understanding of cloud transitions and how to diagnose these transitions in models.

«Validation of GMI Snowfall Observations by Using a Combination of Weather Radar and Surface Measurements.»

Using satellite radar interferometry observations of Greenland, we detected widespread glacier acceleration below 66 - north between 1996 and 2000, which rapidly expanded to 70 - north in 2005.

Here, satellite radar observations are used to produce a composite picture of the life cycle of convection in these two regions.

A study using Earth Remote Sensing satellite radar interferometry (EERS - 1 and -2) observations from 1992 through 2011 finds «a continuous and rapid retreat of the grounding lines of Pine Island, Thwaites, Haynes, Smith, and Kohler» Glaciers, and the authors conclude that «this sector of West Antarctica is undergoing a marine ice sheet instability that will significantly contribute to sea level rise in decades to centuries to come» (Rignot et al. 2014).

Scientists from the University of Erlangen - Nuremberg Institute of Geography and from the Laboratoire de Glaciologie et Gophysique de l'Environnement in Grenoble, France, used radar data from satellites such as ESA's Envisat and observations of ice thickness from airborne surveys in a complex model to demonstrate, for the first time, how the buttressing role of the ice shelves is being compromised as the shelves decline.

Now, with 10 years of observations using its Advanced Synthetic Aperture Radar, ASAR, Envisat has mapped an additional loss in Larsen B's area of 1,790 sq km (690 square miles) over the past decade.»

«Shallow Precipitation Detection and Classification Using Multifrequency Radar Observations and Model Simulations.»

Finnish Meteorological Institute makes observations of the atmosphere, sea and space at over 400 stations around Finland, and using remote sensing instruments such as radars and satellites.

His research focuses on understanding the interactions of ice, ocean and climate, in particular using imaging radar observations from satellites and airplanes to determine how the ice sheets in Antarctica, Greenland and Patagonia will respond to climate change and affect global sea level.

«Over the last couple of years, there have been new observation techniques using RADAR and LIDAR,» Bennartz said.