Version 1
: Received: 14 May 2024 / Approved: 14 May 2024 / Online: 15 May 2024 (10:28:01 CEST)
How to cite:
Yuan, M. Y.; Jun, Z. B.; Min, W. Z.; Fei, L.; Hong, G. The Spatiotemporal Surface Velocity Variations and Analysis of Amery Ice Shelf, East Antarctica. Preprints2024, 2024050987. https://doi.org/10.20944/preprints202405.0987.v1
Yuan, M. Y.; Jun, Z. B.; Min, W. Z.; Fei, L.; Hong, G. The Spatiotemporal Surface Velocity Variations and Analysis of Amery Ice Shelf, East Antarctica. Preprints 2024, 2024050987. https://doi.org/10.20944/preprints202405.0987.v1
Yuan, M. Y.; Jun, Z. B.; Min, W. Z.; Fei, L.; Hong, G. The Spatiotemporal Surface Velocity Variations and Analysis of Amery Ice Shelf, East Antarctica. Preprints2024, 2024050987. https://doi.org/10.20944/preprints202405.0987.v1
APA Style
Yuan, M. Y., Jun, Z. B., Min, W. Z., Fei, L., & Hong, G. (2024). The Spatiotemporal Surface Velocity Variations and Analysis of Amery Ice Shelf, East Antarctica. Preprints. https://doi.org/10.20944/preprints202405.0987.v1
Chicago/Turabian Style
Yuan, M. Y., Li Fei and Geng Hong. 2024 "The Spatiotemporal Surface Velocity Variations and Analysis of Amery Ice Shelf, East Antarctica" Preprints. https://doi.org/10.20944/preprints202405.0987.v1
Abstract
The surface velocity of the Amery Ice Shelf (AIS) is vital to assessing its stability and mass balance. Previous studies have shown that the AIS basin has a stable multi-year average surface velocity. However, spatiotemporal variations in the surface velocity of the AIS and the underlying physical mechanism remain poorly understood. This study combined offset tracking and DInSAR methods to extract the monthly average surface velocity of the AIS and obtained the inter-annual surface velocity from the ITS_LIVE product. An uneven spatial distribution in inter-annual variation of the surface velocity was observed between 2000–2022, although the magnitude of variation was small at less than 20.5 m/yr. The increase and decrease in surface velocity on the eastern and western-central sides of the AIS, respectively, could be attributed to the change in the thickness of the AIS. There was clear seasonal variation in monthly average surface velocity at the eastern side of the AIS between 2017–2021, which could be attributed to variations in the area and thickness of fast-ice and also to variations in ocean temperature. This study suggested that changes in fast-ice and ocean temperature are the main factors driving spatiotemporal variation in the surface velocity of the AIS.
Copyright:
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
