1. Baffin Bay Ice Export and Production From Sentinel‐1, the RADARSAT Constellation Mission, and CryoSat‐2: 2016–2022.
- Author
-
Howell, S. E. L., Babb, D. G., Landy, J. C., Moore, G. W. K., Ballinger, T. J., McNeil, K., Montpetit, B., and Brady, M.
- Subjects
SEA ice ,RADARSAT satellites ,PRODUCTION quantity ,STRAITS ,FRESH water - Abstract
Baffin Bay is located between Greenland and several islands of the Canadian Arctic, providing a conduit for the downstream transport of ice and freshwater to the North Atlantic via Davis Strait. Using satellite observations from Sentinel‐1, the RADARSAT Constellation Mission, and CryoSat‐2, we estimated the sea ice export through Davis Strait and winter ice production in Baffin Bay from 2016 to 2022. The average annual ice export for this 6‐year period was 981 ± 193 × 103 km2 for area 816 ± 130 km3 for volume, and 653 ± 130 km3 for solid freshwater, all of which are considerably higher than previously reported estimates. The average winter ice area production upstream of Davis Strait was 758 × 103 km2 and the volume production was 589 km3 indicating that more than 80% of the ice exported out of Baffin Bay was produced locally. Compared to Fram Strait, sea ice fluxes through Davis Strait represent ∼59% of the volume and ∼111% of the area. Plain Language Summary: Baffin Bay is located between Greenland and several islands of the Canadian Arctic. Sea ice and freshwater is transported downstream to the North Atlantic through Davis Strait located at the southern end of Baffin Bay. Using the latest state‐of‐the‐art satellite observations we estimated the amount of sea ice and freshwater transported through Davis Strait in addition to the amount of ice produced in Baffin Bay from 2016 to 2022. Our ice transport and ice production estimates were considerably higher than previously reported estimates. Sea ice transport from Davis Strait represented 111% of area and 59% of the volume of the Fram Strait which is the Arctic's major ice export passageway. Key Points: High quality and consistent satellite derived estimates are provided for Baffin Bay sea ice exportApproximately 80% of the Baffin Bay ice exported via Davis Strait is locally producedAnnual sea ice export from Baffin Bay represents ∼59% of the volume flux and ∼111% of the area flux compared to Fram Strait [ABSTRACT FROM AUTHOR]
- Published
- 2024
- Full Text
- View/download PDF