4. Standard research operations
PHYSICAL MEASUREMENTS IN SITU
- meteorological measurements conforming the "ship" standard
- solar radiation
- vertical wind gradients and air temperature in the near-water layer
- aerosol concentration and humidity above sea surface
- vertical profiling of basic properties of seawater and marine environment:
- temperature and salinity
- water currents
- light attenuation at selected wavelengths
- photosynthetic active radiation, (FAR)
- light transmission in the sea at selected wavelengths
- chlorophyll fluorescence
- sound scattering by the concentrations of fish and plankton
POSTPROCESSING OF HYDROPHYSICAL DATASETS
- distributions of sea temperature, salinity and density within the basic scales of their variability: large scale, fine-structure and micro-structure
- parameters of internal waves
- vertical distributions of mean velocities of the water flow
- dynamical height distributions
- turbulent diffusion coefficients of heat, salinity and passive suspended matter
- the value and distributions of Brünt-Väisäla parameter and Richardson number
- dissipation rates within turbulent inhomogeneities of the temperature, salinity and density fields in the sea
- power spectrum analysis of the temperature, salinity and density fluctuations
- daily doses of the sun radiation at sea surface and within the water column
- vertical distribution of light attenuation coefficient at several selected wavelengths
- diffusive light attenuation coefficients in the sea in the FAR range
- conditions for sound propagation in the sea
- wind speed distribution in the air-sea interface layer
- air humidity and temperature distributions near the sea surface
- spatial distributions of sea surface temperature and the chlorophyll in the near-surface layer
- degree of foam coverage of at the free sea surface
COLLECTION OF SAMPLES
- atmospheric aerosols
- water bottle measurements
- phyto and zoo-plankton
- sample fish trawls
- underway bottom surface sampling using grab samplers
- near-bottom sediment cores
- bird watching
PROCESSING OF COLLECTED SAMPLES
- distribution of suspended matter in seawater
- oxygen content
- pH and alkalinity
- concentration of nutrients
- organic and total carbon content
- concentration of heavy metals
- composition and distribution of phyto and zoo-plankton populations
- content of photosynthetic pigments within the plankton, fish and bird communities
- determination of the content of selected toxic compounds
- geochemical characteristics of the bottom sediments
- content of radionuclides in seawater, bottom sediment and live spices
- content of aromatic organic matter in bottom sediments and marine organisms
- preconcentration and identification of selected organic compounds extracted from seawater- description of birds, their spatial distribution and number
- determination of food composition and concentration from the collected organisms
- primary production
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