Sentences with phrase «from synthetic aperture radar»

Analyzed over 200 targets, resulting in the crafting of over 200 imagery products from Synthetic Aperture Radar (SAR), Multi-Spectral, infra - red, wide area airborne surveillance (WAAS) and low light TV (LLTV).

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.

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

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.

Not exact matches

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.

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.

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.

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.

In contrast, Joughin and Tulaczyk's analysis takes advantage of the much - expanded database available from ice - flow velocity measurements obtained using Interferometric Synthetic Aperture Radar.