Level 4 data (shear probes): Difference between revisions

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== Level 4 data (shear probes) ==
== Level 4 data (shear probes) ==


Level 4 data include the final dissipation estimates as time series, as well as indicators for the quality and accuracy of the estimates and additional derived parameter. Each dissipation estimate in level 4 corresponds to a spectrum in the level 3 data. Parameter EPSA is the final dissipation rate estimate, averaged over dissipation estimates from all available shear sensors, excluding outliers and only using good spectra.
Level 4 data include the final dissipation estimates as time series, as well as indicators for the quality and accuracy of the estimates and additional derived parameter. Each dissipation estimate in level 4 corresponds to a spectrum in the level 3 data. Consequently, the level 3 and 4 TIME dimensions are similar. Parameter EPSI_FINAL is the final dissipation rate estimate, averaged of the selected estimates (using the QC flags) at that depth.


{| class="wikitable sortable"
{| class="wikitable sortable"
|-
|-
! Parameter Name !! CF Parameter !! Standard Name !! Units of measurement !! dimensions
! Parameter Name !! Standard Name !! Units of measurement !! dimensions
|-
|-
| DEPTH || 1 || depth || m ||
| DEPTH || depth || m || TIME
|-
|-
| KVISC || || kinematic_viscosity_of_water || m2 s-1 || TIME_SPECTRA
| KVISC || kinematic_viscosity_of_water || m2 s-1 || TIME
|-
|-
| EPSI || 1<br /> 0 || specific_turbulent_kinetic_energy_dissipation_in_sea_water<br /> specific_turbulent_kinetic_energy_dissipation_in_water || W kg-1 || [TIME_SPEC, n_shear_sensors]
| EPSI || specific_turbulent_kinetic_energy_dissipation_in_sea_water<br /> specific_turbulent_kinetic_energy_dissipation_in_water || W kg-1 || [TIME, N_SHEAR_SENSORS]
|-
|-
| EPSA || 1<br /> 0 || specific_turbulent_kinetic_energy_dissipation_in_sea_water<br /> specific_turbulent_kinetic_energy_dissipation_in_water || W kg-1 || TIME_SPEC
| EPS_FINAL || specific_turbulent_kinetic_energy_dissipation_in_sea_water<br /> specific_turbulent_kinetic_energy_dissipation_in_water || W kg-1 || TIME
|-
|-
| FOM || || figure_of_merit || 1 || [TIME_SPEC, n_shear_sensors]
| FOM || figure_of_merit || dimensionless || [TIME, N_SHEAR_SENSORS]
|-
|-
| MAD || || mean_absolute_deviation || || Example
| MAD || mean_absolute_deviation || ||[TIME, N_SHEAR_SENSORS]
|}
|}



Revision as of 05:11, 9 November 2021

Level 4 data (shear probes)

Level 4 data include the final dissipation estimates as time series, as well as indicators for the quality and accuracy of the estimates and additional derived parameter. Each dissipation estimate in level 4 corresponds to a spectrum in the level 3 data. Consequently, the level 3 and 4 TIME dimensions are similar. Parameter EPSI_FINAL is the final dissipation rate estimate, averaged of the selected estimates (using the QC flags) at that depth.

Parameter Name Standard Name Units of measurement dimensions
DEPTH depth m TIME
KVISC kinematic_viscosity_of_water m2 s-1 TIME
EPSI specific_turbulent_kinetic_energy_dissipation_in_sea_water
specific_turbulent_kinetic_energy_dissipation_in_water
W kg-1 [TIME, N_SHEAR_SENSORS]
EPS_FINAL specific_turbulent_kinetic_energy_dissipation_in_sea_water
specific_turbulent_kinetic_energy_dissipation_in_water
W kg-1 TIME
FOM figure_of_merit dimensionless [TIME, N_SHEAR_SENSORS]
MAD mean_absolute_deviation [TIME, N_SHEAR_SENSORS]



Return Dataset requirements for shear probes.