Minimum depth: Difference between revisions

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The criteria listed above are mainly for vertical profilers and for gliders. For AUVs and for moored instruments, the minimum speed of profiling – the speed of the AUV or the speed of the current past the mooring – will be the most relevant criterion for selecting a profile.
The minimum depth is important for several reasons:
 
# Vertical profilers need about one body length to accelerate to about 80% of their asymptotic speed. Thus, a '''minimum depth of about two body lengths is recommended'''.
# The hull of the ship used to deploy a vertical profiler may reach several meters and data from less than hull depth should be excluded. While a glider is at the surface, shear probe data has no value.
# '''A minimum depth of 1 to 2 m should be applied to gliders''' (in dives) to exclude data that are not useful for dissipation rate estimation.
 
 
 
 
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return to [[Flow chart for shear probes]]
 
[[Category:Shear probes]]

Latest revision as of 16:10, 6 June 2024

The minimum depth is important for several reasons:

  1. Vertical profilers need about one body length to accelerate to about 80% of their asymptotic speed. Thus, a minimum depth of about two body lengths is recommended.
  2. The hull of the ship used to deploy a vertical profiler may reach several meters and data from less than hull depth should be excluded. While a glider is at the surface, shear probe data has no value.
  3. A minimum depth of 1 to 2 m should be applied to gliders (in dives) to exclude data that are not useful for dissipation rate estimation.




return to Flow chart for shear probes