CTDmittauksia

CTDmittauksia refers to measurements taken using a CTD instrument. CTD is an acronym for Conductivity, Temperature, and Depth. These instruments are essential tools in oceanography and limnology for collecting data about the physical properties of water bodies.

A CTD instrument typically consists of sensors that measure the electrical conductivity of the water, its temperature, and the hydrostatic pressure, which is used to determine the depth. Conductivity is a measure of the dissolved salt content, a key indicator of salinity. Temperature and salinity are fundamental properties that influence water density, which in turn drives ocean currents and stratification. Depth measurements are crucial for understanding the three-dimensional structure of the water column.

CTD instruments are deployed from research vessels, often lowered from the surface to the seabed or to a specific depth. The data collected during the descent and ascent provides a profile of these parameters throughout the water column. This information is vital for various scientific studies, including those on climate change, marine ecosystems, oceanographic modeling, and resource management. The raw data from CTD measurements is processed and calibrated to ensure accuracy before being used in scientific analysis.