NetCDF parameter

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Subgroup Short name Standard name Units of measurement Long name Dir positive Reference datum NetCDF type validMin validMax
All TIME time days, or Days since YYYY-MM-DDT00:00:00Z Decimal day days since 1950-01-01 00:00 UTC float
All PRES sea_water_pressure dbar Sea water pressure, equals 0 at sea-level down float
All DEPTH depth m down sea surface float -5 12000
All LATITUDE latitude degrees_north WGS84 geographic coordinate system float -90 90
All LONGITUDE longitude degrees_east WGS84 geographic coordinate system float -180 180
All TEMP sea_water_temperature degrees_Celsius sea water temperature in-situ ITS-90 scale float -2.5 40
All CNDC sea_water_electrical_conductivity S m-1 float 0 50000
All PSAL sea_water_practical_salinity 1 float 0 41
All DENS sea_water_density kg m-3 float
All BVFSQ square_of_brunt_vaisala_frequency_in_sea_water (rad s-1)2 float 0 10000
All CSPD water_speed m s-1 float 0 10
All PITCH platform_pitch_angle degree float -180 180
All HEADING platform_yaw_angle degree clockwise true North float 0 360
All HEADING_MAG platform_yaw_angle degree clockwise magnetic North float 0 360
All ROLL platform_roll_angle degree float -180 180
All EPSI specific_turbulent_kinetic_energy_dissipation_in_sea_water W kg-1 dissipation rate of turbulent kinetic energy per unit mass in sea water estimated from individual shear probes / beams float 1.00E-12 1.00E+00
All EPSI_FINAL specific_turbulent_kinetic_energy_dissipation_in_sea_water W kg-1 final dissipation rate of turbulent kinetic energy per unit mass in sea water (averaged using all accepted shear probes / beams / or best estimate from single channel) double
All K_TEMP water_vertical_diffusivity_of_heat m2 s-1 float 1.00E-12 100
All K_RHO water_diapycnal_diffusivity m2 s-1 float 1.00E-12 100
All KAPPA_TEMP seawater_molecular_diffusivity_temperature m2 s-1 float 1.00E-09 1.00E-05
All KVISC kinematic_viscosity_of_water m2 s-1 Kinematic viscosity of (sea) water float 1.00E-08 1.00E-04
All dTEMP_dZ derivative_of_seawater_temperature_wrt_z degrees_Celsius m-1 float 0 100
All PROFILE unique_identifier_for_each_profile_feature_instance_in_this_file 1 int
All SECTION_NUMBER unique_identifier_for_each_section_of_data_from_timeseries 1 A unique indentifier counter defining sections of the time series from the fast (or slow) channels extracted for dissipation estimates int
All PSPD_REL platform_speed_wrt_sea_water m s-1 Platform speed with respect to sea water float
Shear Probes SHEAR sea_water_velocity_shear s-1 rate of change of cross axis sea water velocity along transect measured by shear probes double
Shear Probes VIB platform_vibration 1 platform vibration detected by piezo-accelerometers double
Shear Probes ACC platform_acceleration m s-2 platform acceleration detected by accelerometers double
Shear Probes SH_SPEC shear_probe_spectrum s-2 cpm-1 cyclic wavenumber spectrum of sea water velocity shear float 1.00E-12 1.00E+00
Shear Probes SH_SPEC_CLEAN shear_probe_spectrum_clean s-2 cpm-1 cleaned cyclic wavenumber spectrum of sea water velocity shear float
Shear Probes ACC_SPEC acceleration_sensor_spectrum m2 s-4 cpm-1 acceleration spectrum from accelerometers float 1.00E-12 1.00E+00
Shear Probes VIB_SPEC vibration_sensor_spectrum 1 vibration spectrum from vibration sensors float 1.00E-12 1.00E+12
Shear Probes SH_ACC_SPEC shear_and_acceleration_cross-spectral_matrix Complex cross-spectral matrix of shear and acceleration float
Shear Probes SH_VIB_SPEC shear_and_vibration_cross-spectral_matrix Complex cross-spectral matrix of shear and vibration float
ADV/Shear probes KMAX maximum_wavenumber_used_for_estimating_turbulent_kinetic_energy_dissipation cpm maximum wavenumber for integration of shear spectrum float 0 1000
Shear probes FOM figure_of_merit - Figure of merit of shear spectrum relative to the model spectrum. It is MAD multiplied by the sqrt( degrees of freedom) of the spectra float
ADV/Shear probes MAD mean_absolute_deviation - mean absolute deviation of shear spectrum relative to the model spectrum float
ADV/Shear probes DOF degrees_of_freedom_of_spectrum float 0 500
ADV/Shear probes FREQ frequency Hz float 0 1.00E+04
ADV/Shear probes FREQ_W angular_frequency rad s-1 float 0 1.00E+04
ADV/Shear probes KCYC cyclic_wavenumber cpm wavenumber along the direction of instrument motion in cycles per meter float 0 1.00E+04
ADV MAD_SQRT_DOF mean_absolute_deviation_multiplied_sqrt_of_degrees_of_freedom float 0 1000
ADV KMIN minimum_wavenumber_used_for_estimating_turbulent_kinetic_energy_dissipation cpm minimum wavenumber for integration of shear spectrum float 0 1000
ADV DIR_CSPD direction_of_water_speed degree counterclockwise east float 0 360
ADV ROT_AXIS axis_of_rotation_from_east_to_x Rotation axis [i,j,k] in the geographical coordinates system used to rotate from the geographical to the analysis frame of reference float -1 1
ADV ROT_ANGLE angle_of_rotation_from_east_to_x degree Angle of rotation from geographical coordinates to the analysis frame of reference around the rotation axis. counterclockwise east float 0 360
ADV ANISO ratio_of_large_turbulence_length_scale_to_smallest_kolmogorov_length - float 1
ADV UVW_VEL water_velocity_in_the_analysis_frame_of_reference ms-1 The measurements have been rotated into a frame of reference for which the x (longitudinal) axis coincides with the direction of mean water speed Background flow float -10 10
ADV UVW_VEL_SPEC power_spectrum_density_of_velocity_in_the_analysis_frame_of_reference (m s-1)2 s Summation of the spectra across all frequencies is equal to the signal's variance in time-domain. float 1.00E-12 1.00E+00
ADV XYZ_VEL water_velocity_measured_in_instrument_coordinates ms-1 float -10 10
ADV ENU_VEL water_velocity_in_geographical_east_north_up_coordinates ms-1 Geographical float -10 10
ADV ENU_VEL_DETRENDED detrended_water_velocity_in_geographical_east_north_up_coordinates ms-1 These velocities in the geographical frame of reference have been detrended. The signal may include surface wave, motion contamination, in addition to the turbulence signal float -5 5
ADV UVW_VEL_DETRENDED detrended_water_velocity_in_the_analysis_frame_of_reference ms-1 These velocities in the analysis frame of reference have been detrended. The signal may include surface wave, motion contamination, in addition to the turbulence signal float -5 5
ADV UVW_VEL_RMS root_mean_square_of_velocity_in_the_analysis_frame_of_reference ms-1 An rms calculation on a detrended timeseries (mean removed) is the same as the standard deviation float 0 5
ADV UVW_VEL_STD standard_deviation_of_velocity_in_the_analysis_frame_of_reference ms-1 float 0 5
ADV TAYL ratio_of_rms_turb_U_to_water_speed - float 0 10000
ADV SNR signal_noise_ratio_from_each_acoustic_beam decibel float 0 150
ADV ABSIC backscater_intensity_from_each_acoustic_beam count AlongBeam_distance float 0
ADV CORRN noise_correlation_percent_from_each_acoustic_beam percent float 0 100
ADV N_VEL_INSTRUMENT unique_identifier_for_each_velocity_component - int 1
ADV N_VEL_COMPONENT unique_identifier_for_each_velocity_instrument - int 1 3
ADV N_SAMPLE unique_identifier_for_each_sample_within_the_segment - int 1
ADV/ADCP N_SEGMENT unique_identifier_for_each_segment_in_the_entire_available_timeseries - int 1
ADV SPEC_SLOPE estimated_spectral_slope_of_fitted_wavenumbers_in_logspace - Nonlinear least square fit to find most likely spectral slope float
ADV SPEC_SLOPE_CI_LOW low_limit_confidence_interval_of_spectral_slope_in_logspace - float
ADV SPEC_SLOPE_CI_HIGH high_limit_confidence_interval_of_spectral_slope_in_logspace - float
ADV/ADCP dUCUR_dZ derivative_of_eastward_velocity_wrt_z s-1 float -10 10
ADV/ADCP dVCUR_dZ derivative_of_northtward_velocity_wrt_z s-1 float -10 10
ADV/ADCP dWCUR_dZ derivative_of_upward_velocity_wrt_z s-1 float -5 5
ADV/ADCP HEIGHT_AB height_above_bottom m up bottom float 0 12000
ADV/ADCP BURST_NUMBER unique_identifier_for_each_burst - int 1
ADV/ADCP PERG percentage_of_samples_good percent float 0 100
ADV/ADCP N_BEAM unique_identifier_for_each_beam int 1 10
ADCP ABSI backscatter_intensity_from_each_acoustic_beam decibel AlongBeam_distance float 0
ADCP ABSI5 backscatter_intensity_from_acoustic_beam_5 decibel AlongBeam_distance float 0
ADCP CORR correlation_magnitude_from_each_acoustic_beam counts AlongBeam_distance float 0
ADCP CORR5 correlation_magnitude_from_acoustic_beam_5 counts AlongBeam_distance float 0
ADCP R_DIST5 distance_from_sensor_along_beam_5 m Required for 5-beam ADCPs when the 5th is pointing vertically up. outwards from transducer sensor dimension 0
ADCP R_DIST distance_from_sensor_along_beams m outwards from transducer sensor dimension 0
ADCP HEIGHT_AS height_above_sensor m up sensor float -12000 12000
ADCP THETA beam_angle_from_instrument_z_axis degrees clockwise vertical axis float 0 90
ADCP BIN_SIZE instrument_measurement_volume_bin_size m float 0 100
ADCP R_VEL water_radial_velocity_of_scatterers_towards_instrument m/s towards instrument float -10 10
ADCP R_VEL5 water_radial_velocity_of_scatterers_towards_instrument_in_beam_5 m/s towards instrument float -5 5
ADCP R_VEL_DETRENDED water_radial_velocity_of_scatterers_towards_instrument_detrended m/s High-frequency content of the velocity signal, which may contain contributions from surface waves, turbulence, and vibrations etc towards instrument float -10 10
ADCP R_VEL5_DETRENDED water_radial_velocity_of_scatterers_towards_instrument_in_beam_5_detrended m/s High-frequency content of the velocity signal, which may contain contributions from surface waves, turbulence, and vibrations etc towards instrument float -10 10
ADCP R_DEL along-beam_separation_distance_over_which_DLL_is_evaluated m float 0
ADCP R_DEL5 along-beam_separation_distance_over_which_DLL_is_evaluated_in_beam_5 m float 0
ADCP R_MAX maximum_separation_distance_over_for_DLL_regression m float 0
ADCP DLL5_N second_order_structure_function_in_beam_5 m2/s2 AlongBeam_distance float 0
ADCP DLL second_order_structure_function m2/s2 AlongBeam_distance float 0
ADCP DLL_N second_order_structure_function_number_of_observations count int 0
ADCP DLL5_N second_order_structure_function_in_beam_5_number_of_observations count int 0
ADCP DLL_FLAGS second_order_structure_function_status_flags count float
ADCP C2 constant_used_in_the_second_order_structure_function This constant appears when estimating the dissipation rate of turbulent kinetic energy from the regression coefficients. float
ADCP REGRESSION_RSQUARED regression_goodness_of_fit_adjusted_for_number_of_terms float
ADCP/ADV EPSI_CI_LOW specific_turbulent_kinetic_energy_dissipation_in_water_low_confidence_limit W kg-1 95% confidence interval float
ADCP/ADV EPSI_CI_HIGH specific_turbulent_kinetic_energy_dissipation_in_water_high_confidence_limit W kg-1 95% confidence interval float
ADCP QAx_BDF QA_criterion_x_bad_data_flag logical logical 0 1
ADCP REGRESSION_COEFF_A0 structure_function_regression_intercept m2 s-2 float
ADCP REGRESSION_COEFF_A1 structure_function_regression_coefficient_for_r^2/3 m4/3 s-2 float
ADCP REGRESSION_COEFF_A3 structure_function_regression_coefficient_for_(r^2/3)^3 s-2 float
ADCP REGRESSION_N structure_function_regression_number_of_observations count int
All L_K kolmogorov_length_scale m float 0 1000
All L_S turbulent_corssin_shear_length_scale m float 0 100000
All L_O turbulent_ozmidov_stratification_length_scale m float 0 100000
ADV TIME_HPR time_of_heading_pitch_roll_sensors Days since 1950-01-01T00:00:00Z Heading, pitch and roll (tilt) sensors measure always at 1Hz for Vector ADV days since 1950-01-01 00:00 UTC float
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