What is XBT ocean?
An XBT is a small probe that is dropped over the side of a ship. As it falls through the water, it measures temperature. Small wires transmit the temperature data back to the ship where it is recorded for further analysis.
How does the eXpendable BathyThermograph work?
An eXpendable BathyThermograph (XBT) is a probe that is dropped from a ship and measures the temperature as it falls through the water. A resistance in the head of the probe and a very thin twin-wire, connecting the probe to the equipment on the ship, compose the electronic circuit for measuring the water temperature.
When was the Bathythermograph invented?
Retired and current USGS scientists from the Great Lakes Science Center display a bathythermograph. The device was invented in the early 1900s and collected temperature information in the Great Lakes up until the 1990s.
What is a CTD used for?
A CTD — an acronym for Conductivity, Temperature, and Depth — is the primary tool for determining essential physical properties of sea water.
How was a bathythermograph used in WWII?
While Tex was flying through the skies, a device known as a bathythermograph, or BT, was plummeting beneath the sea surface, monitoring temperature and depth to keep U.S. Navy submarines out of enemy sonar range.
When was the bathythermograph invented?
What is CTD used for oceanography?
What CTD means?
|CTD||Cheapest To Deliver|
|CTD||Constant Time Delay|
|CTD||Cell Transfer Delay|
What is meant by CTD in electronics?
CTD stands for conductivity, temperature, and depth, and refers to a package of electronic instruments that measure these properties.
How do Oceanographers measure?
Oceanographers measure the density of ocean water by taking a sample of sea water out of the ocean and taking it to the laboratory to be measured…
Why is measuring density important?
Density is an important concept because it allows us to determine what substances will float and what substances will sink when placed in a liquid.
What is a bathythermograph?
Definition of bathythermograph. : an instrument designed to record water temperature as a function of depth.
What is an expendable bathythermograph (XBT)?
: Ocean Exploration Facts: NOAA Office of Ocean Exploration and Research What is an Expendable Bathythermograph, or “XBT”? An Expendable Bathythermograph (XBT) is a probe used to measure temperature throughout the water column.
Why are bathothermographs used on submarines?
Since water temperature may vary by layer and may affect sonar by producing inaccurate location results, bathothermographs (U.S. World War II spelling) were installed on the outer hulls of U.S. submarines during World War II.
Who invented the expendable bathythermograph?
After witnessing firsthand the dangers of deploying and retrieving BTs, James M. Snodgrass began developing the expendable bathythermograph (XBT). Snodgrass’ description of the XBT: