60-YEAR Remote Sensing Observations Revealed Cross-Cycle Evolution of the Brunt Ice Shelf in the Context of Global Warming

Yuan Cheng, Jiamei Xue, Haomin Yu, Gang Hai

Research output: Contribution to journalConference article in JournalResearchpeer-review

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Abstract

The Antarctic Ice Sheet (AIS) holds the potential to raise global sea levels by a staggering 57 m. Ice shelves, extensions of these ice sheets into the ocean, play a crucial role in stabilizing the upstream ice sheet. The Brunt Ice Shelf (BIS), located in the Southern Weddell Sea region and proximal to the continental shelf break, stands as a vital indicator for the region's response to global climate warming. Hence, this study systematically employs a range of remote sensing and field data, including remote sensing data from 1963 to 2023 (ARGON images, Landsat1-9 images, Sentinel-1 images, ICESat-2 altimetry data, etc.) and in-situ ice flow velocity data since 1956, to conduct a comprehensive analysis of the BIS's calving cycle and evolution over nearly six decades. The results reveal a significant exacerbation of both dynamical and structural instabilities in the BIS compared to the calving cycle in the 1970s. Combining analyses of air temperature from meteorological station, water temperature from ocean models and in-situ measurements such as Conductivity Temperature-Depth profiles, the study suggests that the increased instability of the BIS is likely linked to the intrusion of warmer currents over the continental shelf. This research provides valuable insights into the evolving behavior of the BIS in response to changing climate conditions, underscoring the critical role of remote sensing data in advancing our understanding of these processes on a global scale.
Original languageEnglish
Book seriesISPRS Annals of the Photogrammetry, Remote Sensing and Spatial Information Sciences
Pages (from-to)99-105
Number of pages7
ISSN2194-9042
DOIs
Publication statusPublished - 8 Mar 2024
EventGeoAdvances 2024 – 8th International Conference on GeoInformation Advances - Istanbul, Turkey
Duration: 11 Jan 202412 Jan 2024
https://www.geoadvances.web.tr/

Conference

ConferenceGeoAdvances 2024 – 8th International Conference on GeoInformation Advances
Country/TerritoryTurkey
CityIstanbul
Period11/01/202412/01/2024
Internet address

Keywords

  • Remote Sensing
  • Global Climate Change
  • Antarctic Ice Sheet
  • Ice Shelves

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