XBTkartoituksia

XBTkartoituksia is a Finnish term that translates to "XBT surveys" or "XBT measurements." XBT stands for Expendable Bathythermograph, a device used to measure the temperature profile of the ocean. These surveys involve deploying XBT probes from a moving platform, typically a ship. As the probe descends through the water, it transmits temperature data back to the ship via a thin wire. This data creates a vertical profile of ocean temperature at a specific location.

The primary purpose of XBTkartoituksia is to gather information about the thermal structure of the upper ocean. This data is crucial for various scientific and operational applications. Oceanographers use XBT data to study ocean currents, heat content, and the mixing of water masses. It also plays a vital role in understanding climate variability and change, as the ocean stores a significant amount of heat.

Operationally, XBT data is essential for weather forecasting and climate modeling. Accurate ocean temperature profiles help improve the prediction of weather patterns, including tropical cyclones. Naval operations also utilize XBT data for navigation and the detection of submarines, as water temperature affects sound propagation. XBT systems are relatively simple and cost-effective, making them a widely used tool for oceanographic research and monitoring worldwide. The data collected contributes to global ocean observing systems, providing a continuous stream of information about the state of the oceans.