Name
Title | ||
|---|---|---|
High-Altitude Radar Measurements of Ice Thickness Over the Antarctic and Greenland Ice Sheets as a Part of Operation IceBridge |
Abstract | ||
|---|---|---|
The National Aeronautics and Space Administration (NASA) initiated a program called Operation IceBridge for monitoring critical parts of Greenland and Antarctica with airborne LIDARs until ICESat-II is launched in 2016. We have been operating radar instrumentation on the NASA DC-8 and P-3 aircraft used for LIDAR measurements over Antarctica and Greenland, respectively. The radar package on both aircraft includes a radar depth sounder/imager operating at the center frequency of 195 MHz. During high-altitude missions flown to perform surface-elevation measurements, we also collected radar depth sounder data. We obtained good ice thickness information and mapped internal layers for both thicker and thinner ice. We successfully sounded 3.2-km-thick low-loss ice with a smooth surface and also sounded about 1-km or less thick shallow ice with a moderately rough surface. The successful sounding required processing of data with an algorithm to obtain 56-dB or lower range sidelobes and array processing with a minimum variance distortionless response algorithm to reduce cross-track surface clutter. In this paper, we provide a brief description of the radar system, discuss range-sidelobe reduction and array processing algorithms, and provide sample results to demonstrate the successful sounding of the ice bottom interface from high altitudes over the Antarctic and Greenland ice sheets. |
Year | DOI | Venue |
|---|---|---|
2013 | 10.1109/TGRS.2012.2203822 | IEEE T. Geoscience and Remote Sensing |
Keywords | Field | DocType |
less thick shallow ice moderately rough surface,cross-track surface clutter,high-altitude radar measurements,nasa dc-8 aircraft,lower range sidelobes,range-sidelobe reduction,thinner ice internal layer mapping,minimum variance distortionless response algorithm,high-altitude ice sheet measurements,operating radar instrumentation,operation icebridge,radar system brief description,array processing algorithms,radar depth sounder-imager data,data processing,low-loss ice smooth surface,ice surface clutter reduction,ice thickness information,remote sensing by laser beam,thicker ice internal layer mapping,greenland ice sheet,optical radar,icesat-ii,radar altimetry,ice,nasa p-3 aircraft,antarctic ice sheet,multichannel airborne radar,national aeronautics and space administration,high-altitude missions,airborne lidar measurement,radar package,center frequency,ice bottom interface sounding,surface-elevation measurements | Radar,Sea ice concentration,Radar imaging,Radioglaciology,Space-based radar,Remote sensing,Ice sheet,Sea ice thickness,3D radar,Mathematics | Journal |
Volume | Issue | ISSN |
51 | 2 | 0196-2892 |
Citations | PageRank | References |
11 | 1.13 | 7 |
Authors | ||
9 | ||
Name | Order | Citations | PageRank |
|---|---|---|---|
| Jilu Li | 1 | 26 | 4.75 |
| John Paden | 2 | 48 | 15.88 |
| Carl Leuschen | 3 | 21 | 6.17 |
| Fernando Rodriguez-Morales | 4 | 38 | 9.64 |
| Richard D. Hale | 5 | 23 | 4.84 |
| Emily J. Arnold | 6 | 23 | 4.17 |
| Reid Crowe | 7 | 21 | 2.38 |
| Daniel Gomez-Garcia | 8 | 21 | 5.58 |
| Prasad Gogineni | 9 | 21 | 4.86 |