High-resolution subglacial topography around Dome Fuji, Antarctica, based on ground-based radar surveys over 30 years

Tsutaki, Shun; Fujita, Shuji; Kawamura, Kenji; Abe-Ouchi, Ayako; Fukui, Kotaro; Motoyama, Hideaki; Hoshina, Yu; Nakazawa, Fumio; Obase, Takashi; Ohno, Hiroshi; Oyabu, Ikumi; Saito, Fuyuki; Sugiura, Konosuke; Suzuki, Toshitaka

doi:https://doi.org/10.5194/tc-16-2967-2022

Articles | Volume 16, issue 7

https://doi.org/10.5194/tc-16-2967-2022

© Author(s) 2022. This work is distributed under
the Creative Commons Attribution 4.0 License.

Special issue:

Oldest Ice: finding and interpreting climate proxies in ice...

https://doi.org/10.5194/tc-16-2967-2022

© Author(s) 2022. This work is distributed under
the Creative Commons Attribution 4.0 License.

Articles | Volume 16, issue 7

Research article

|

27 Jul 2022

Research article |

| 27 Jul 2022

High-resolution subglacial topography around Dome Fuji, Antarctica, based on ground-based radar surveys over 30 years

Shun Tsutaki, Shuji Fujita, Kenji Kawamura, Ayako Abe-Ouchi, Kotaro Fukui, Hideaki Motoyama, Yu Hoshina, Fumio Nakazawa, Takashi Obase, Hiroshi Ohno, Ikumi Oyabu, Fuyuki Saito, Konosuke Sugiura, and Toshitaka Suzuki

Supplement

https://doi.org/10.5194/tc-16-2967-2022-supplement

Data sets

Ice thickness around Dome Fuji, Antarctica, based on JARE ground-based radar surveys: JARE33 data S. Tsutaki, S. Fujita, K. Kawamura, A. Abe-Ouchi, K. Fukui, H. Motoyama, Y. Hoshina, F. Nakazawa, T. Obase, H. Ohno, I. Oyabu, F. Saito, K. Sugiura, and T. Suzuki https://doi.org/10.17592/001.2021110902

Ice thickness around Dome Fuji, Antarctica, based on JARE ground-based radar surveys: JARE60 data S. Tsutaki, S. Fujita, K. Kawamura, A. Abe-Ouchi, K. Fukui, H. Motoyama, Y. Hoshina, F. Nakazawa, T. Obase, H. Ohno, I. Oyabu, F. Saito, K. Sugiura, and T. Suzuki https://doi.org/10.17592/001.2021110910

Ice thickness around Dome Fuji, Antarctica, based on JARE ground-based radar surveys: a 500 m resolution gridded data S. Tsutaki, S. Fujita, K. Kawamura, A. Abe-Ouchi, K. Fukui, H. Motoyama, Y. Hoshina, F. Nakazawa, T. Obase, H. Ohno, I. Oyabu, F. Saito, K. Sugiura, and T. Suzuki, https://doi.org/10.17592/001.2021110901

Ice thickness around Dome Fuji, Antarctica, based on JARE ground-based radar surveys: JARE37 data S. Tsutaki, S. Fujita, K. Kawamura, A. Abe-Ouchi, K. Fukui, H. Motoyama, Y. Hoshina, F. Nakazawa, T. Obase, H. Ohno, I. Oyabu, F. Saito, K. Sugiura, and T. Suzuki https://doi.org/10.17592/001.2021110903

Ice thickness around Dome Fuji, Antarctica, based on JARE ground-based radar surveys: JARE40 data S. Tsutaki, S. Fujita, K. Kawamura, A. Abe-Ouchi, K. Fukui, H. Motoyama, Y. Hoshina, F. Nakazawa, T. Obase, H. Ohno, I. Oyabu, F. Saito, K. Sugiura, and T. Suzuki https://doi.org/10.17592/001.2021110904

Ice thickness around Dome Fuji, Antarctica, based on JARE ground-based radar surveys: JARE49 POL 179 MHz data S. Tsutaki, S. Fujita, K. Kawamura, A. Abe-Ouchi, K. Fukui, H. Motoyama, Y. Hoshina, F. Nakazawa, T. Obase, H. Ohno, I. Oyabu, F. Saito, K. Sugiura, and T. Suzuki https://doi.org/10.17592/001.2021110905

Ice thickness around Dome Fuji, Antarctica, based on JARE ground-based radar surveys: JARE49 VHF 60 MHz data S. Tsutaki, S. Fujita, K. Kawamura, A. Abe-Ouchi, K. Fukui, H. Motoyama, Y. Hoshina, F. Nakazawa, T. Obase, H. Ohno, I. Oyabu, F. Saito, K. Sugiura, and T. Suzuki https://doi.org/10.17592/001.2021110906

Ice thickness around Dome Fuji, Antarctica, based on JARE ground-based radar surveys: JARE54 data S. Tsutaki, S. Fujita, K. Kawamura, A. Abe-Ouchi, K. Fukui, H. Motoyama, Y. Hoshina, F. Nakazawa, T. Obase, H. Ohno, I. Oyabu, F. Saito, K. Sugiura, and T. Suzuki https://doi.org/10.17592/001.2021110907

Ice thickness around Dome Fuji, Antarctica, based on JARE ground-based radar surveys: JARE59 POL 179 MHz data S. Tsutaki, S. Fujita, K. Kawamura, A. Abe-Ouchi, K. Fukui, H. Motoyama, Y. Hoshina, F. Nakazawa, T. Obase, H. Ohno, I. Oyabu, F. Saito, K. Sugiura, and T. Suzuki https://doi.org/10.17592/001.2021110908

Ice thickness around Dome Fuji, Antarctica, based on JARE ground-based radar surveys: JARE59 VHF 179 MHz data S. Tsutaki, S. Fujita, K. Kawamura, A. Abe-Ouchi, K. Fukui, H. Motoyama, Y. Hoshina, F. Nakazawa, T. Obase, H. Ohno, I. Oyabu, F. Saito, K. Sugiura, and T. Suzuki https://doi.org/10.17592/001.2021110909

The RADARSAT-1 Antarctic Mapping Project K. C. Jezek https://asf.alaska.edu/data-sets/derived-data-sets/ramp/ramp-get-ramp-data/

Short summary

We constructed an ice thickness map across the Dome Fuji region, East Antarctica, from improved radar data and previous data that had been collected since the late 1980s. The data acquired using the improved radar systems allowed basal topography to be identified with higher accuracy. The new ice thickness data show the bedrock topography, particularly the complex terrain of subglacial valleys and highlands south of Dome Fuji, with substantially high detail.