Direction of the vertical velocity: Difference between revisions
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The direction of the vertical velocity of the profiler is important. | The direction of the vertical velocity of the profiler is important. | ||
Most vertical profilers collect data while they are descending, and the data collected while ascending is useless | Most vertical profilers collect data while they are descending, and the data collected while ascending is useless because the probes are in the wake of the instrument and there is no oncoming flow over the shear probes. | ||
However, some profilers are designed to collect data while they are ascending and the data collected during it descent is not useable. | However, some profilers are designed to collect data while they are ascending and the data collected during it descent is not useable. | ||
Gliders can produce meaningful data while descending and ascending. | Gliders can produce meaningful data while descending and ascending. | ||
So, it is important to know what type of instrument was used to collect your shear-probe data. | So, it is important to know what type of instrument was used to collect your shear-probe data, so that you select data from when it was travelling in the appropriate direction. | ||
Revision as of 19:55, 18 November 2021
The direction of the vertical velocity of the profiler is important. Most vertical profilers collect data while they are descending, and the data collected while ascending is useless because the probes are in the wake of the instrument and there is no oncoming flow over the shear probes. However, some profilers are designed to collect data while they are ascending and the data collected during it descent is not useable. Gliders can produce meaningful data while descending and ascending. So, it is important to know what type of instrument was used to collect your shear-probe data, so that you select data from when it was travelling in the appropriate direction.
return to Flow chart for shear probes
