Oceanographic Research and Research
(Service)
Online Support Service: No
Interpretation of Data: No
Description:
Oceanographic studies and surveys are aimed at determining the parameters of sea level fluctuations, waves, currents, thermohaline (temperature and salinity) water structure, their spatio-temporal variability. Field data collection takes place during summer and winter expeditions. Natural materials are used both directly for calculating the parameters necessary for hydraulic engineering construction, and for verifying model calculations, on the basis of which the required values are further evaluated.
Overview:
A separate area is the work on providing hydrographic surveys, which include vertical sounding of waters, in order to determine corrections for the speed of sound in the measurement results, and to observe sea level fluctuations to tie the measurement to a single altitude system. The sounding of the water column is carried out directly from the survey vessel with either a CTD probe (determination of temperature and salinity of water, hydrostatic pressure, by which the speed of sound is calculated), or a sound velocity meter (SVP probe).
Observations of sea level fluctuations are carried out using autonomous recorders installed in the survey area, and at the nearest coastal points where it is possible to link observations to a single altitude system. Various interpolation procedures and hydrodynamic modeling are used to transfer level corrections to the measuring points.
Autonomous bottom stations
As a result of the work of the bottom stations, series of observations of wave parameters, sea level fluctuations, sea currents and ice drift can be obtained. The main working device is an acoustic Doppler current profiler (ADPT).
To study the morphometry of the ice cover, the bottom station includes an acoustic Doppler current profiler with the possibility of determining ice drift and an overhead sonar for ice profiling (GPL).
As a result of the operation of instruments installed at the bottom stations, an accumulation of an array of data on the sediment of keels of hummocky ice formations, the dynamics of ice and sea currents, and sea level.
Laboratory "Arctic shelf" them. G.K. Zubakin
Locations: Russia, Saint-Petersburg
Main Products/Services: Scientific developments and modern equipment for the development of the shelf of the polar regions
Year Established: 1991