Iwona Niedzwiecka

Institute of Oceanology Polish Academy of Sciences · Department of Physical Oceanography - Centre for Polar Studies

Ship-based measurements of sea spray aerosol (SSA) gradient fluxes in the size range of 0.5–47 µm in diameter were conducted between 2009–2017 in both the Baltic Sea and the North Atlantic Ocean. Measured total SSA fluxes varied between 8.9 × 103± 6.8 × 105 m-2 s-1 for the Baltic Sea and 1.0 × 104± 105 m-2 s-1 for the Atlantic Ocean. The analysis u...

Ship-based measurements of sea spray aerosol (SSA) gradient fluxes in the size range 0.5–47 µm diameter were conducted between 2009–2017 in both the Baltic Sea and the North Atlantic Ocean. Measured total SSA fluxes varied between 8.9⸱103 ± 6.8⸱105 m-2 s-1 for the Baltic Sea, and 1.0⸱104 ± 105 m-2 s-1. for the Atlantic Ocean. The analysis uncovered...

The database contains analytical results of measurements of the luminescence properties of organic matter, FNOM, the surface activity of organic molecules, SAS, the composition and concentration of lipids as well as wind speed and direction data and hydro-physical properties of the sea surface layer. Water samples for analyses were collected from t...

A feed-forward neural network (FFNN) was used to estimate the monthly climatology of partial pressure of CO2 (pCO2W) at a spatial resolution of 1° latitude by 1° longitude in the continental shelf of the European Arctic Sector (EAS) of the Arctic Ocean (the Greenland, Norwegian, and Barents seas). The predictors of the network were sea surface temp...

The contemporary air‐sea flux of CO2 is investigated by the use of an air‐sea flux equation, with particular attention to the uncertainties in global values and their origin with respect to that equation. In particular, uncertainties deriving from the transfer velocity and from sparse upper ocean sampling are investigated. Eight formulations of air...

Interactions between the atmosphere and the ocean determine boundary conditions for physical and biogeochemical processes in adjacent boundary layers, and the ocean surface is a complex interface where all air-sea fluxes take place and is a crucial valuable for ocean circulation and the ecosystem. We have chosen to study the differences between the...

Results and discussion TABLE I Absorption quantities: • CDOM absorption coaefficient a(), • the ratio of absorption coefficients at 250 and 365 nm (called E 2 :E 3), • the spectral slope coefficient of the absorption spectra in a range 300-600, S, • The ratio of the spectral slope coefficients (S 275-295 and S 350-400), S R , the spectral slope coe...

In this paper we have chosen to check the differences between the relevant or most commonly used parameterizations for drag coefficient (CD) for the momentum transfer values, especially in the North Atlantic (NA) and the European Arctic (EA). As is well know, the exact equation in the North equation that describes the connection betwenn the drag co...

The fluorescence and absorption measurements of the samples collected from a surface microlayer (SML) and a subsurface layer (SS), at a depth of 1 m, were studied during three research cruises in the Baltic Sea along with hydrophysical studies and meteorological observations. Several absorption (E2:E3,S,SR) and fluorescence (fluorescence intensitie...

The Arctic Ocean (AO) is an important basin for global oceanic carbon dioxide (CO2) uptake, but the mechanisms controlling air–sea gas fluxes are not fully understood, especially over short and long timescales. The oceanic sink of CO2 is an important part of the global carbon budget. Previous studies have shown that in the AO differences in the par...

The fluorescence and absorption measurements of the samples collected from a surface microlayer (SML) and a subsurface layer (SS), a depth of 1 m were studied during three research cruises in the Baltic Sea along with hydrophysical studies and meteorological observations. Several absorption (E2 : E3, S, SR) and fluorescence (fluorescence intensitie...

The oceanic sink of carbon dioxide (CO2) is an important part of the global carbon budget. Understanding uncertainties in the calculation of this net flux into the ocean is crucial for climate research. One of the sources of the uncertainty within this calculation is the parameterization chosen for the CO2 gas-transfer velocity. We used a recently...

Wind speed has a disproportionate role in the forming of the climate as well it is important part in calculate of the air-sea interaction thanks which we can study climate change. It influences on mass, momentum and energy fluxes and the standard way of parametrizing those fluxes is use this variable. However, the very functions used to calculate f...

The ocean sink is an important part of the anthropogenic CO 2 budget. Because the terrestrial biosphere is usually treated as a residual, constraining the net flux into the ocean sink is crucial for understanding the global carbon cycle. The air-sea interface flux is calculated from millions of measurements of CO 2 partial pressures. However the re...