Evaluation of six atmospheric reanalyses over Arctic sea ice from winter to early summer

RM Graham, L Cohen, N Ritzhaupt… - Journal of …, 2019 - journals.ametsoc.org
This study evaluates the performance of six atmospheric reanalyses (ERA-Interim, ERA5,
JRA-55, CFSv2, MERRA-2, and ASRv2) over Arctic sea ice from winter to early summer. The …

Increasing frequency and duration of Arctic winter warming events

RM Graham, L Cohen, AA Petty… - Geophysical …, 2017 - Wiley Online Library
Near‐surface air temperatures close to 0° C were observed in situ over sea ice in the central
Arctic during the last three winter seasons. Here we use in situ winter (December–March) …

Extreme cyclone events in the Arctic: Wintertime variability and trends

A Rinke, M Maturilli, RM Graham… - Environmental …, 2017 - iopscience.iop.org
Abstract Typically 20–40 extreme cyclone events (sometimes called'weather bombs') occur
in the Arctic North Atlantic per winter season, with an increasing trend of 6 events/decade …

[HTML][HTML] X-, C-, and L-band SAR signatures of newly formed sea ice in Arctic leads during winter and spring

AM Johansson, C Brekke, G Spreen, JA King - Remote Sensing of …, 2018 - Elsevier
We examine an extensive synthetic aperture radar (SAR) data set from the Arctic Ocean
spanning a time period from January to June 2015, with the aim of identifying multi …

Turbulent heat and momentum fluxes in the upper ocean under A rctic sea ice

AK Peterson, I Fer, MG McPhee… - Journal of Geophysical …, 2017 - Wiley Online Library
We report observations of heat and momentum fluxes measured in the ice‐ocean boundary
layer from four drift stations between January and June 2015, covering from the typical Arctic …

Winter storms accelerate the demise of sea ice in the Atlantic sector of the Arctic Ocean

RM Graham, P Itkin, A Meyer, A Sundfjord, G Spreen… - Scientific Reports, 2019 - nature.com
A large retreat of sea-ice in the 'stormy'Atlantic Sector of the Arctic Ocean has become
evident through a series of record minima for the winter maximum sea-ice extent since 2015 …

Meteorological conditions in a thinner Arctic sea ice regime from winter to summer during the Norwegian Young Sea Ice expedition (N‐ICE2015)

L Cohen, SR Hudson, VP Walden… - Journal of …, 2017 - Wiley Online Library
Atmospheric measurements were made over Arctic sea ice north of Svalbard from winter to
early summer (January–June) 2015 during the Norwegian Young Sea Ice (N‐ICE2015) …

Thin sea ice, thick snow, and widespread negative freeboard observed during N‐ICE2015 north of Svalbard

A Rösel, P Itkin, J King, D Divine… - Journal of …, 2018 - Wiley Online Library
In recent years, sea‐ice conditions in the Arctic Ocean changed substantially toward a
younger and thinner sea‐ice cover. To capture the scope of these changes and identify the …

A comparison of the two Arctic atmospheric winter states observed during N‐ICE2015 and SHEBA

RM Graham, A Rinke, L Cohen… - Journal of …, 2017 - Wiley Online Library
Winter time atmospheric observations from the 2015 Norwegian young sea‐ICE campaign
(N‐ICE2015) are compared with data from the 1997–1998 Surface Heat Budget of the Arctic …

Arctic Sea ice characterization using spaceborne fully polarimetric L-, C-and X-band SAR with validation by airborne measurements

S Singha, M Johansson, N Hughes, S Hvidegaard… - 2018 - munin.uit.no
In recent years, spaceborne synthetic aperture radar (SAR) polarimetry has become a
valuable tool for sea ice analysis. Here, we employ an automatic sea ice classification …