More Like this

1. Diffusive vertical heat flux in the Canada Basin of the Arctic Ocean inferred from moored instruments: VERTICAL HEAT FLUX IN THE CANADA BASIN

   https://doi.org/10.1002/2013JC009346  

   Lique, Camille; Guthrie, John D.; Steele, Michael; Proshutinsky, Andrey; Morison, James H.; Krishfield, Richard (January 2014, Journal of Geophysical Research: Oceans)
2. Mechanisms of Pacific Summer Water variability in the Arctic's Central Canada Basin

   https://doi.org/10.1002/2014JC010273  

   Timmermans, M.-L.; Proshutinsky, A.; Golubeva, E.; Jackson, J. M.; Krishfield, R.; McCall, M.; Platov, G.; Toole, J.; Williams, W.; Kikuchi, T.; et al (November 2014, Journal of Geophysical Research: Oceans)
3. The Atlantic Water Boundary Current in the Chukchi Borderland and Southern Canada Basin

   https://doi.org/10.1029/2020JC016197  

   Li, Jianqiang; Pickart, Robert S.; Lin, Peigen; Bahr, Frank; Arrigo, Kevin R.; Juranek, Laurie; Yang, Xiao‐Yi (August 2020, Journal of Geophysical Research: Oceans)

   Abstract Synoptic shipboard measurements, together with historical hydrographic data and satellite data, are used to elucidate the detailed structure of the Atlantic Water (AW) boundary current system in the southern Canada Basin and its connection to the upstream source of AW in the Chukchi Borderland. Nine high‐resolution occupations of a transect extending from the Beaufort shelf to the deep basin near 152°W, taken between 2003 and 2018, reveal that there are two branches of the AW boundary current that flow beneath and counter to the Beaufort Gyre. Each branch corresponds to a warm temperature core and transports comparable amounts of Fram Strait Branch Water between roughly 200–700 m depth, although they are characterized by a different temperature/salinity (T/S) structure. The mean volume flux of the combined branches is 0.87 ± 0.13 Sv. Using the historical hydrographic data, the two branches are tracked upstream by their temperature cores andT/Ssignatures. This sheds new light on how the AW negotiates the Chukchi Borderland and why two branches emerge from this region. Lastly, the propagation of warm temperature anomalies through the region is quantified and shown to be consistent with the deduced circulation scheme. 

   more » « less
4. Deepening of the Winter Mixed Layer in the Canada Basin, Arctic Ocean Over 2006–2017

   https://doi.org/10.1029/2019JC014940  

   Cole, Sylvia T.; Stadler, James (July 2019, Journal of Geophysical Research: Oceans)
5. Paleohydrological context for recent floods and droughts in the Fraser River Basin, British Columbia, Canada

   https://doi.org/10.1088/1748-9326/ac3daf  

   Brice, Becky L; Coulthard, Bethany L; Homfeld, Inga K; Dye, Laura A; Anchukaitis, Kevin J (December 2021, Environmental Research Letters)

   Abstract The recent intensification of floods and droughts in the Fraser River Basin (FRB) of British Columbia has had profound cultural, ecological, and economic impacts that are expected to be exacerbated further by anthropogenic climate change. In part due to short instrumental runoff records, the long-term stationarity of hydroclimatic extremes in this major North American watershed remains poorly understood, highlighting the need to use high-resolution paleoenvironmental proxies to inform on past streamflow. Here we use a network of tree-ring proxy records to develop 11 subbasin-scale, complementary flood- and drought-season reconstructions, the first of their kind. The reconstructions explicitly target management-relevant flood and drought seasons within each basin, and are examined in tandem to provide an expanded assessment of extreme events across the FRB with immediate implications for water management. We find that past high flood-season flows have been of greater magnitude and occurred in more consecutive years than during the observational record alone. Early 20th century low flows in the drought season were especially severe in both duration and magnitude in some subbasins relative to recent dry periods. Our Fraser subbasin-scale reconstructions provide long-term benchmarks for the natural flood and drought variability prior to anthropogenic forcing. These reconstructions demonstrate that the instrumental streamflow records upon which current management is based likely underestimate the full natural magnitude, duration, and frequency of extreme seasonal flows in the FRB, as well as the potential severity of future anthropogenically forced events. 

   more » « less