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| Line 22: |
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| |- | | |- |
| |} | | |} |
| <math>^a</math> Typically we assume TIME for the fast-sampled microstructure channels, and eventually _SLOW or _CTD for slower sampled channels such as CTD and tilt sensors. If the application requires different time stamps for different sensors, this can be utilized like TIME_PITCH, TIME_ACC etc. | | <math>^a</math> Typically we assume TIME for the fast-sampled microstructure channels, and for example, _SLOW or _CTD for slower sampled channels such as CTD and tilt sensors. If the application requires different time stamps for different sensors, this can be utilized like TIME_PITCH, TIME_ACC etc. |
| <br> | | <br> |
| <math>^b</math> Please use these examples for related sensors: | | <math>^b</math> Please use these examples for related sensors: |
| N_VIB_SENSORS for vibration (piezo-acceleration) sensors <br> | | N_VIB_SENSORS for vibration (piezo-acceleration) sensors, <br> |
| N_ACC_SENSORS for vibration acceleration sensors | | N_ACC_SENSORS for vibration acceleration sensors, <br> |
| N_GRADT_SENSORS for thermistors <br> | | N_GRADT_SENSORS for thermistors, <br> |
| N_GRADC_SENSORS for microconductivity sensors <br> | | N_GRADC_SENSORS for microconductivity sensors. <br> |
| </div> | | </div> |
|
| |
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Revision as of 13:19, 4 June 2022
Level 1 data refers to the full resolution data in physical units, e.g. the regularly sampled time series of converted shear probe data. If needed, a transfer function for shear is given. Below, a table with parameters included in the level 1 data set is compiled. The parameter names and definitions fit the NetCDF parameter attributes.
In the standard names, "sea_water" can be replaced with "water" if working in freshwater environments. This is specified in some entries below but not all.
Dimensions
| Dimension short name |
description
|
| TIME |
length of the record from turbulence (fast) data channels
|
| TIME_*** <math>^a</math> |
length of the record from the *** sensor (e.g., CTD or SLOW)
|
| N_SHEAR_SENSORS |
number of shear channel (shear sensors)
|
| N_***_SENSORS <math>^b</math> |
number of *** channel (sensors)
|
<math>^a</math> Typically we assume TIME for the fast-sampled microstructure channels, and for example, _SLOW or _CTD for slower sampled channels such as CTD and tilt sensors. If the application requires different time stamps for different sensors, this can be utilized like TIME_PITCH, TIME_ACC etc.
<math>^b</math> Please use these examples for related sensors:
N_VIB_SENSORS for vibration (piezo-acceleration) sensors,
N_ACC_SENSORS for vibration acceleration sensors,
N_GRADT_SENSORS for thermistors,
N_GRADC_SENSORS for microconductivity sensors.
Required Variables
| Parameter Name |
Standard Name |
Units of measurement |
dimension
|
| TIME |
time |
Days since YYYY-MM-DDT00:00:00Z |
TIME
|
| SHEAR |
sea_water_velocity_shear
(or water_velocity_shear) |
s-1 |
[TIME, N_SHEAR_SENSORS]
|
Optional Level 1 Variables
| Parameter Name |
Standard Name |
Units of measurement |
dimension
|
| PSPD_REL |
platform_speed_wrt_sea_water |
m s-1 |
TIME <math>^a</math>
|
| VIB |
platform_vibration |
NA |
[TIME, N_VIB_SENSORS]
|
| ACC |
platform_acceleration |
m s-2 |
[TIME <math>^b</math>, N_ACC_SENSORS]
|
| TEMP |
sea_water_temperature
(water_temperature) |
degree_Celsius |
[TIME_CTD <math>^b</math>, N_T_SENSORS]
|
| CNCD |
sea_water_electrical_conductivity
(water_electrical_conductivity) |
S m-1 |
[TIME_CTD <math>^b</math>, N_C_SENSORS]
|
| GRADT |
temperature_gradient |
|
[TIME, N_GRADT_SENSORS]
|
| GRADC |
conductivity_gradient |
|
[TIME, N_GRADC_SENSORS]
|
| PITCH |
platform_pitch_angle |
degree |
TIME <math>^a</math>
|
| ROLL |
platform_roll_angle |
degree |
TIME <math>^a</math>
|
<math>^a</math> or TIME_SLOW or TIME_CTD
<math>^b</math> or TIME_SLOW
return to Dataset requirements for shear probes
go to next: Level 2 data.
