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Article

Influence of Novaya Zemlya Bora on Sea Waves: Satellite Measurements and Numerical Modeling

1
A.M. Obukhov Institute of Atmospheric Physics of the Russian Academy of Science, 119017 Moscow, Russia
2
Faculty of Geography, Lomonosov Moscow State University, 119991 Moscow, Russia
3
Shirshov Institute of Oceanology of the Russian Academy of Science, 117997 Moscow, Russia
4
Hydrometeorological Research Centre of the Russian Federation, 123242 Moscow, Russia
5
Institute of Applied Physics of the Russian Academy of Science, 603950 Nizhny Novgorod, Russia
*
Author to whom correspondence should be addressed.
Atmosphere 2020, 11(7), 726; https://doi.org/10.3390/atmos11070726
Received: 21 May 2020 / Revised: 1 July 2020 / Accepted: 2 July 2020 / Published: 7 July 2020
(This article belongs to the Special Issue Atmospheric Processes Shaping Polar Climate)
This paper investigates for the first time sea waves during Novaya Zemlya bora—a downslope windstorm on the western coast of the archipelago during eastern winds—using a statistical and case-study approach. Statistical analysis of altimeter data off the western coast of Novaya Zemlya during bora shows that, despite strong wind forcing, the frequency of hazard wave heights was low due to the limited fetch. This result was confirmed by the high-resolution numerical simulations of two severe bora episodes. However, the influence of bora on sea waves in some cases was significant: bora increased wave height at a distance from shore greater than 200 km and wave height anomaly was up to 2–3 m. The influence of the wind input parametrization choice during bora is great in the coastal region; however, parametrizations with fetch-limited modifications and strong-wind adopted aerodynamic drag coefficient do not improve the modeling results in the open sea where altimeter data are available. View Full-Text
Keywords: downslope windstorms; WaveWatch3; WRF-ARW; Novaya Zemlya; fetch-limited waves downslope windstorms; WaveWatch3; WRF-ARW; Novaya Zemlya; fetch-limited waves
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MDPI and ACS Style

Shestakova, A.A.; Myslenkov, S.A.; Kuznetsova, A.M. Influence of Novaya Zemlya Bora on Sea Waves: Satellite Measurements and Numerical Modeling. Atmosphere 2020, 11, 726. https://doi.org/10.3390/atmos11070726

AMA Style

Shestakova AA, Myslenkov SA, Kuznetsova AM. Influence of Novaya Zemlya Bora on Sea Waves: Satellite Measurements and Numerical Modeling. Atmosphere. 2020; 11(7):726. https://doi.org/10.3390/atmos11070726

Chicago/Turabian Style

Shestakova, Anna A., Stanislav A. Myslenkov, and Alexandra M. Kuznetsova 2020. "Influence of Novaya Zemlya Bora on Sea Waves: Satellite Measurements and Numerical Modeling" Atmosphere 11, no. 7: 726. https://doi.org/10.3390/atmos11070726

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