Decibar (dbar) is a unit of pressure commonly used in oceanography to measure underwater pressure. It is equal to 0.1 bar or 10 kilopascals (kPa). Decibars are used to measure the pressure of water at different depths in the ocean, and are often used in conjunction with other measurements such as temperature and salinity.
One of the advantages of using decibars to measure underwater pressure is that the unit is logarithmic. This means that a change of one decibar corresponds to a change of approximately one percent in pressure. This makes it easier to compare pressure measurements at different depths in the ocean.
To convert decibars to other units of pressure, such as Pascals (Pa) or pounds per square inch (psi), conversion factors must be used. One decibar is equivalent to 1000 millibars (mbar), 100000 Pa, and 14.5037738 psi. Conversely, one Pa is equal to 0.00001 dbar, and one psi is equal to 68.9475729 dbar.
Decibars are a useful unit of pressure in oceanography and other fields that require the measurement of underwater pressure. It is important to note, however, that there are many different units of pressure, and it is often necessary to convert between them to ensure accurate measurements and clear communication. A reliable unit conversion tool can be a valuable resource in these situations.