Sentences with phrase «synthetic aperture radar»

Advances in glacier ice flow mapping using repeat satellite images, and later using interferometric synthetic aperture radar SAR methods, facilitated the mass budget approach, although this still requires an estimate of snow input and a cross-section of the glacier as it flows out from the continent and becomes floating ice.

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.

Our observations of the rift are based on synthetic aperture radar (SAR) interferometry from ESA's Sentinel - 1 satellites.

The NASA - ISRO Synthetic Aperture Radar satellite is the «need of the hour,» says NASA Administrator Charles Bolden in Washington, D.C.

On September 14, the European Space Agency announced that satellite images captured earlier in the month by the Advanced Synthetic Aperture Radar instrument aboard its Envisat satellite showed that the Arctic sea ice had dwindled to its smallest size since measurement began 30 years ago.

The Uninhabited Aerial Vehicle Synthetic Aperture Radar, or UAVSAR, developed by NASA's Jet Propulsion Laboratory in Pasadena, California, was carried in a specialized pod on NASA's C - 20A.

We used GPS and interferometric synthetic aperture radar data to model the earthquake rupture as a slip pulse ~ 20 kilometers in width, ~ 6 seconds in duration, and with a peak sliding velocity of 1.1 meters per second, which propagated toward the Kathmandu basin at ~ 3.3 kilometers per second over ~ 140 kilometers.

New techniques and algorithms are continuously proposed to improve the retrieval of storm properties from Earth orbiting satellites; for example, improved estimation of wind speeds by exploiting wind - generated waves extracted from spaceborne synthetic aperture radar (SAR)[Shao et al., 2017].

«One of the most exciting aspects of this project is investigating the use of synthetic aperture radar (SAR) satellite imagery, provided by NASA through the Alaska Satellite Facility, to quantify methane bubbles trapped by lake ice.»

Researched highly parallel microprocessor performance in comparison to GPU and FPGA performance for Synthetic Aperture RADAR applications for technical white paper

This image of Mt. Rainier depicts the main kinds of observations that the NASA - ISRO Synthetic Aperture Radar mission will make: glaciers (ice), volcanoes (crustal deformation), and forests (ecosystems).

Having NeMO outfitted with powerful synthetic aperture radar would enable it to spot ice at depth and help plan tapping that resource for use by future Mars crews, he explains.

Synthetic aperture radar allowed the researchers to watch through thick steam and ash as heat released from the volcano melted the 650 - foot - thick ice at its summit.

Stenoien, Mark D. and Charles R. Bentley, Pine Island Glacier, Antarctica: a study of the catchment using interferometric Synthetic Aperture Radar measurements and radar altimetry, J. Geophys.

Special interests include synthetic aperture radar, error correction coding, machine learning, and convex optimization.

Researchers used RADARSAT synthetic aperture radar to map ice flow velocity over Greenland for the winters of 2000 - 2001 and 2005 - 2006.

GPS and Interferometric synthetic aperture radar velocity records from grounded portion of Greenland and Antarctica have shown that the velocity of fast flowing ice streams and outlet glaciers can be tidally modulated up to 100 kilometers upstream from the grounding line at periods ranging from minutes to half a year.

Voronovich A. G. and V. U. Zavorotny (June 2017): Measurement of Ocean Wave Directional Spectra Using Airborne HF / VHF Synthetic Aperture Radar: A Theoretical Evaluation.

Cover: This Spaceborne Imaging Radar - C / X-Band Synthetic Aperture Radar (SIR - C / X-SAR) image provided by NASA JPL and acquired from the Space Shuttle Endeavour, STS - 59 (April 11, 1994), shows part of the vast Namib Sand Sea on the west coast of southern Africa, just northeast of the city of Luderitz, Namibia.

Landsat 7 and 8 imagery from 2013 through 2015, when compared to earlier estimates based on synthetic aperture radar, indicated ice discharge of 1,932 ± 38 gigatons per year — an increase of 35 ± 15 gigatons per year since roughly 2008.

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.»

Ice flow speed in Greenland (color) for winter 2006 derived from synthetic aperture radar (SAR) imagery (gray scale image derived from NASA funded research.

Last week I saw a presentation about still unpublished (under peer - review) latest results about the mass - balance of the Greenland ice - cap done using spaceborne synthetic aperture radar (SAR).

For example, the agency is partnering with the Indian Space Research Organization to develop the NASA ISRO Synthetic Aperture Radar (NISAR) mission that will routinely provide systematic observations of Earth's land and ice - covered surfaces at least twice every 12 days, enabling greater scientific understanding of the dynamic processes that drive the Earth system and natural hazards, as well as providing actionable support for disaster response and recovery.

But Avouac, Ampuero, and their colleagues used satellite Synthetic Aperture Radar data and a technique called back projection that takes advantage of the dense arrays of seismic stations in the United States, Europe, and Australia to track the progression of the earthquake, and found that it was quite contained at depth.

They also relied on InSAR — interferometric synthetic aperture radar — to look for changes to the Earth's surface.

Tamer excelled at Cal Poly and even did an internship at NASA's Jet Propulsion Laboratory, working on a project to improve a synthetic aperture radar antenna.

Shirzaei and colleagues took a different approach, using a constellation of satellites — the Interferometric Synthetic Aperture Radar (InSAR) satellites — to detect alterations in Earth's crust driven by underlying pressure fluctuations.

Some of the most stunning images of Saturn's moon Titan are made using a synthetic aperture radar to penetrate the thick atmosphere to see the frigid surface.

Using data from Global Positioning System (GPS) stations and Interferometric Synthetic Aperture Radar (InSAR) images collected during successive satellite fly - overs, ASU researchers were able to measure changes in surface elevation during a time period spanning the main Gorkha event, and several major aftershocks, with centimeter accuracy.

With the precision autopilot engaged, the synthetic aperture radar is able to acquire repeat - pass data that can measure land - surface changes within centimeters.

They also used Magellan's Synthetic Aperture Radar (SAR), with its 75x75 - meter footprint, to look at radio reflectance, rather than the data on radio emissions from the surface, which had a coarser 15 by 23 kilometer resolution.

The synthetic aperture radar developed by the Jet Propulsion Laboratory mounted on NASA's C - 20A research aircraft captured this image of Peru's Ubinas volcano on April 14, 2014, during its Latin American research mission.

Researchers Cathleen Jones and Ron Blom of NASA's Jet Propulsion Laboratory in Pasadena, Calif., analyzed interferometric synthetic aperture radar (InSAR) imagery of the area acquired during flights of the agency's Uninhabited Airborne Vehicle Synthetic Aperture Radar (UAVSAR), which uses a C - 20A jet, in June 2011 and July 2012.

The researchers used space - borne Interferometric Synthetic Aperture Radar (InSAR), a remote satellite - based sensing technique, to measure the surface uplift of the area near the wells, the release said.

The UC Berkeley team used 19 years of satellite data to map ground deformation using interferometric synthetic aperture radar (InSAR) and measure creep along the southern end of the Hayward Fault, and found, surprisingly, that the creep didn't stop south of Fremont, the presumed southern end of the fault, but continued as far as the Calaveras Fault.

Interferometric Synthetic Aperture Radar — A proposed satellite - based monitoring system that, if funded, will track the movement and deformation of the North American and Pacific plates by bouncing radar waves off the surfaces.

John Pickrell's description of the use of interferometric synthetic aperture radar to study earthquake zones was interesting (2 September, p...

Using a remote sensing technique, called Interferometric Synthetic Aperture Radar (InSAR), the researchers analyzed water - level changes in Louisiana's coastal wetlands that occurred due to tidal inundation.

In particular, we aim for a detection of MYI floes in a area composed mostly first - year ice from synthetic aperture radar (SAR), heavily ridged ice regions from SAR, the thickest ice from radar altimeter (RA) thickness profiles, regional anomalies of thick or thin ice via passive microwave (PMW) data, sea ice areas vulnerable for the wave action, detection of early / late melting season and improving capabilities to forecast seasonal sea ice extremes.

Improve sea ice classification based on Synthetic Aperture Radar (SAR), scatterometers and passive microwave (PMW) sensors.

Sentinel - 1A / B operate a synthetic aperture radar (SAR) with advanced observation capabilities in all weather conditions over the ocean (wind, waves, and surface current) and sea ice field (sea ice deformation, lead fraction and sea ice drift).

An Analysis of Past and Future Changes in the Ice Cover of Two High - Arctic Lakes Based on Synthetic Aperture Radar (SAR) and Landsat Imagery., Arctic, Antarctic, and Alpine Research, 42 (1): 9 - 18.

We map present - day Antarctic - wide surface velocities using Landsat 7 and 8 imagery spanning 2013 — 2015 and compare to earlier estimates derived from synthetic aperture radar, revealing heterogeneous changes in ice flow since ∼ 2008.

In the mosaic image above, created from nearly 200 images acquired in early September 2007 by the Advanced Synthetic Aperture Radar (ASAR) instrument aboard ESA's Envisat satellite, the dark gray colour represents the ice - free areas while green represents areas with sea ice.