Effect of the East Siberian Current on Water Exchange in the Bering Strait Based on Satellite Altimetry Measurements

Oceanology - The seasonal and interannual variability of water exchange in the Bering Strait and its relationship with Arctic circulation is investigated on the basis of satellite-altimetry...     

Seasonal Dynamics of Red Blood Parameters in Healthy People in Regions with Different Types of Climate: a Meta-Analysis

Izvestiya, Atmospheric and Oceanic Physics - It is known that in mammals living in climates other than tropical, hemoconcentration is usually observed in winter. The average modern person actively...     

Variability of the North Atlantic Thermohaline Circulation in Different Phases of the Atlantic Multidecadal Oscillation from Ocean Objective Analyses and Reanalyses

Izvestiya, Atmospheric and Oceanic Physics - Zonally averaged characteristics of the North Atlantic (NA) thermohaline circulation are investigated in different phases of the Atlantic Multidecadal...     

Time Variations in the Composition of Atmospheric Aerosol in Moscow in Spring 2020

Izvestiya, Atmospheric and Oceanic Physics - The results of an intensive complex experiment carried out from March 25 to May 3, 2020, to study the composition and time variability of urban aerosol...     

Potential Vorticity in the Ocean: Ertel and Rossby Approaches with Estimates for the Lofoten Vortex

Izvestiya, Atmospheric and Oceanic Physics - The potential vorticity (PV) in the ocean is considered, including the history of the term. Various aspects and basic formulas used to calculate the PV...     

Tuning a physically-based model of the air–sea gas transfer velocity

Air–sea gas transfer velocities are estimated for one year using a 1-D upper-ocean model (GOTM) and a modified version of the NOAA–COARE transfer velocity parameterization. Tuning parameters are evaluated with the aim of bringing the physically based NOAA–COARE parameterization in line with current estimates, based on simple wind-speed dependent models derived from bomb-radiocarbon inventories and deliberate tracer release experiments. We suggest that A = 1.3 and B = 1.0, for the sub-layer scaling parameter and the bubble mediated exchange, respectively, are consistent with the global average CO₂ transfer velocity k. Using these parameters and a simple 2nd order polynomial approximation, with respect to wind speed, we estimate a global annual average k for CO₂ of 16.4 ± 5.6 cm h^?1 when using global mean winds of 6.89 m s^?1 from the NCEP/NCAR Reanalysis 1 1954–2000. The tuned model can be used to predict the transfer velocity of any gas, with appropriate treatment of the dependence on molecular properties including the strong solubility dependence of bubble-mediated transfer. For example, an initial estimate of the global average transfer velocity of DMS (a relatively soluble gas) is only 11.9 cm h^?1 whilst for less soluble methane the estimate is 18.0 cm h^?1.