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New insight in the determination of thermodynamic equilibrium thickness using heat budget over Barents Sea

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Title New insight in the determination of thermodynamic equilibrium thickness using heat budget over Barents Sea
 
Creator Panicker, D V
Vachharajani, B
Srivastava, R
Oza, S R
 
Subject Barents Sea
Oceanic Energy
Sea Ice Thickness
Thermodynamic Equilibrium Thickness
Top Net Thermal Radiation
 
Description 878-890
This paper examines various atmospheric and sea ice data to understand the Barents Sea's small-scale energy balance.
The ERA-5 reanalysis products are used to calculate the atmospheric budget. Seasonal cycles detected using oceanatmosphere
interactions show that potential energy is substantially higher than kinetic energy over the Barents Sea, which is
one of the reasons for it being colder than other places. The month of June experiences maximum radiation at the top of the
atmosphere with a value of 16.19 Wm-2 and December experiences minimum with a value of 0.11 Wm-2. However, the heat
flow at the surface is the highest during December with values ranging between 0.64 Wm-2 and 0.69 Wm-2. The system is
constrained by declining solar flux, increasing heat flux at the Earth's surface, and atmospheric transport. Sea ice minimum
and maximum months in the Barents Sea exactly coincide with those of the Arctic Sea. However, Barents Sea ice thickness
is only limited to 3.5 m, but for the Arctic it is seen extending up to 4.5 m. Additionally, the area has recently experienced a
massive exchange of heat (energy) between the ocean and the atmosphere, which is believed to be due to Atlantification,
which is a well-known process. The Barents Sea is the region where the process of Atlantification is first observed. A new
method has been developed to estimate the Thermodynamic Equilibrium Thickness (TET) of the sea. TET is calculated
using a thresholding technique that is applied to total thermal radiation. The approach adopted for TET extraction is
important as it generates several important fluxes, including the energy flux between the ocean surface and the atmosphere
above it.
 
Date 2023-07-11T06:34:46Z
2023-07-11T06:34:46Z
2023-07
 
Type Article
 
Identifier 2582-6727 (Online); 2582-6506 (Print)
http://nopr.niscpr.res.in/handle/123456789/62299
https://doi.org/10.56042/ijms.v51i11.3504
 
Language en
 
Publisher NIScPR-CSIR,India
 
Source IJMS Vol.51(11) [November 2022]