A Compact Multi-Channel Radar for >1Ma Old Ice Core Site Identification in East Antarctica
| Autor: | J. Shang, Fernando Rodriguez-Morales, James R. Carswell, David Braaten, Prasad Gogineni, Ayako Abe-Ouchi, H. Ailon, Ryan Taylor, B. Van Liefferinge, Jie-Bang Yan, Kenji Kawamura, Shun Tsutaki, S. Alvarez, K.T. Karidi, A. Paden, Shuji Fujita, Kenny Matsuoka, John Paden, T. Akins |
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| Rok vydání: | 2019 |
| Předmět: |
geography
geography.geographical_feature_category 010504 meteorology & atmospheric sciences Drill 0211 other engineering and technologies East antarctica 02 engineering and technology 01 natural sciences law.invention Identification (information) Ice core law Ice sheet Wideband Radar Multi channel Geology 021101 geological & geomatics engineering 0105 earth and related environmental sciences Remote sensing |
| Zdroj: | IGARSS |
| Popis: | We present a compact, multi-channel, wideband VHF radar system for fine-resolution measurements of the base and interior of large ice sheets. Data from this radar will be used in the identification of potential drill locations to retrieve ice core samples more than 1 million years old in East Antarctica. The radar is a lightweight instrument equipped with four >1-kW peak power transmit channels, eight independent digital receivers, and an array of high-gain antennas. We developed the system as part of a collaborative effort between the United States of America, Japan and Norway. The instrument was used for surface-based surveys near Dome-Fuji onboard a tracked vehicle during the 2018/2019 Austral Summer, covering 2,000 line-km. This paper presents an overview of the radar system, accompanied by laboratory and field test results that demonstrate the system’s ability to map the internal ice sheet structure and basal conditions with outstanding detail. |
| Databáze: | OpenAIRE |
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