ITTC Project


Development of Radar System for Accumulation Rate Measurements

Project Award Date: 09-01-1998



Description

One of the major goals of NASAs Office of Earth Science Polar Program is to determine the mass balance of the Greenland and Antarctic ice sheets. Accumulation rate is a key variable in assessing the mass balance of an ice sheet. Currently, accumulation rate is determined from ice cores and pits. These data are sparse, and large uncertainties remain in existing accumulation-rate maps, which are derived from sparely distributed ice cores and pits. The aim of this project is to design, develop, and test a radar system for mapping shallow volcanic horizons that will help determine the accumulation rate over the Greenlands ice sheet.

The goal is to develop ultra-wideband radar for determining accumulation rate, as well as to design and to develop the radar system, by using the latest RF and digital technologies. Ultra-wideband radar would operate over the frequency range from 100 to 2000MHz, for imaging the top 200 to 300 meters of ice with high resolution that will use both echo amplitude and phase information. Finite-difference, time-domain techniques will be employed to determine optimum radar parameters by simulating the scattering response of the ice sheet due to radar sounding.

To meet this goal, an ultra-wideband, frequency-modulated, continuous-wave radar system (FMCW) will be developed to map the volcanic layers in the ice. The radar system will operate over the frequency range from 170 to 2000 MHz for imaging the top 200 to 300 meters of ice with high resolution. In 1998 and 1999, shallow-radar sounding experiments took place at the North Greenland Ice Core Project site and the North Greenland Ice Core Project ice camp. Results revealed that volcanic layers were mapped down to 200m with high resolution.

The project's focus will turn to designing and developing a step-frequency radar system for airborne experiments. It will also test the new system, publish field results, and analyze data from those airborne experiments.


Investigators

Faculty Investigator(s): Sivaprasad Gogineni (PI), Pannirselvam Kanagaratnam


Project Sponsors


Primary Sponsor(s): NASA


Partner with ITTC

The Information and Telecommunication Technology Center at the University of Kansas has developed several assistance policies that enhance interactions between the Center and local, Kansas, or national companies. 

ITTC assistance includes initial free consulting (normally one to five hours). If additional support is needed, ITTC will offer one of the following approaches: 

Sponsored Research Agreement

Individuals and organizations can enter into agreements with KUCR/ITTC and provide funds for sponsored research to be performed at ITTC with the assistance of faculty, staff and students.

Licensing and Royalty/Equity Agreement

An ITTC goal is the development of investment-grade technologies for transfer to, and marketing by, local, Kansas, and national businesses. To enhance this process, the Center has developed flexible policies that allow for licensing, royalty, and equity arrangements to meet both the needs of ITTC and the company.

Commercialization Development

Companies with a technology need that can be satisfied with ITTC's resources can look to us for assistance. We can develop a relationship with interested partners that will provide for the development of a technology suited for commercialization.

ITTC Resource Access

ITTC resources, including computers and software systems, may be made available to Kansas companies in accordance with the Center's mission and applicable Regents and University policies.

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