The dynamic response of sea ice to warming in the canadian arctic archipelago
Type: Journal Article Venue: Geophysical Research Letters Year: 2019
Abstract
Abstract Ice arches in the Canadian Arctic Archipelago (CAA) block the inflow of Arctic Ocean ice for the majority of the year. A 22 year record (1997–2018) of Arctic Ocean-CAA ice exchange was used to investigate the effect of warming on CAA sea ice dynamics. Larger ice area flux values were associated with longer flow duration and faster ice speed facilitated by increased open water leeway from the CAA’s transition to a younger and thinner ice regime, which together have contributed to a significant ice area flux increase (103 km2/year) from Arctic Ocean into the northern CAA from 1997 to 2018. Remarkably, the 2016 Arctic Ocean ice area flux into the CAA (161 × 103 km2) was 7 times greater than the 1997–2018 average (23 × 103 km2) and almost double the 2007 ice area flux into Nares Strait (87 × 103 km2). Continued warming may result in the CAA becoming a larger outlet for Arctic Ocean ice area loss.
Citation
Stephen E. L. Howell and Mike Brady (2019). The dynamic response of sea ice to warming in the canadian arctic archipelago. Geophysical Research Letters. https://doi.org/https://doi.org/10.1029/2019GL085116
BibTeX
@article{howell_dynamic_2019,
title = {The Dynamic Response of Sea Ice to Warming in the Canadian Arctic Archipelago},
volume = {46},
url = {https://agupubs.onlinelibrary.wiley.com/doi/abs/10.1029/2019GL085116},
doi = {https://doi.org/10.1029/2019GL085116},
abstract = {Abstract Ice arches in the Canadian Arctic Archipelago ({CAA}) block the inflow of Arctic Ocean ice for the majority of the year. A 22 year record (1997–2018) of Arctic Ocean-{CAA} ice exchange was used to investigate the effect of warming on {CAA} sea ice dynamics. Larger ice area flux values were associated with longer flow duration and faster ice speed facilitated by increased open water leeway from the {CAA}'s transition to a younger and thinner ice regime, which together have contributed to a significant ice area flux increase (103 km2/year) from Arctic Ocean into the northern {CAA} from 1997 to 2018. Remarkably, the 2016 Arctic Ocean ice area flux into the {CAA} (161 × 103 km2) was 7 times greater than the 1997–2018 average (23 × 103 km2) and almost double the 2007 ice area flux into Nares Strait (87 × 103 km2). Continued warming may result in the {CAA} becoming a larger outlet for Arctic Ocean ice area loss.},
pages = {13119--13125},
number = {22},
journaltitle = {Geophysical Research Letters},
author = {Howell, Stephen E. L. and Brady, Mike},
date = {2019-11-13},
note = {\_eprint: https://agupubs.onlinelibrary.wiley.com/doi/pdf/10.1029/2019GL085116},
keywords = {sea ice, area flux, dynamics, volume flux, Arctic Ocean, Canadain Arctic Archipelago},
}