Data Stream Report

Instrument Name
3-D Single Point Velocity Meter
Reference Designator
CP03ISPM-WFP01-01-VEL3DK000
Method
telemetered
Stream
vel3d_k_wfp_stc_instrument
Stream Type
Science
Stream Content
Data Products
Uframe Route
Ingest.vel3d-k-wfp-stc_telemetered
Driver
vel3d_k_wfp_stc
Parser

Annotations

Metadata Start Date End Date Comment
CP03ISPM-WFP01-01-VEL3DK000
Method: telemetered
Stream: vel3d_k_wfp_stc_instrument
11/11/17, 10:26 PM

During descending profiles, the vertical velocity estimates may be incorrect due to interference with beam 3 measurements arising from the nearby CTD sensor. Users should cross-compare these vertical velocity estimates with those derived from the CTD pressure record to determine profiles of possible concern. Good vertical velocity estimates will closely align with the CTD derived estimates. Regardless, there should be minimal impact on the estimates of the horizontal velocities. However, care should be taken with these estimates to confirm this conclusion.

Id: 1657 By: swhite
Flag: suspect Exclude: No

CP03ISPM-WFP01-01-VEL3DK000
Method: telemetered
Stream: vel3d_k_wfp_stc_instrument
11/11/17, 10:26 PM 4/11/18, 3:06 PM

Deployment 1; During the times indicated by the start and end times of this annotation, the VEL3D instrument on the Profiler contained a firmware bug which caused beam 3 (downward-facing) to be on during ascents, and beam 1 (upward-facing) to be on during descents, instead of vice versa. Therefore the issue of incorrect vertical velocity estimates due to interference with the CTD noted in a previous annotation will affect the ascending profiles rather than the descending profiles.

Id: 1729 By: areed
Flag: suspect Exclude: No

Parameters

Id Parameter Display Name Standard Name Unit Fill Value Precision Identifier Type Level
PD7 time Time, UTC time seconds since 1900-01-01 -9999999
PD10 port_timestamp Port Timestamp, UTC seconds since 1900-01-01 -9999999
PD11 driver_timestamp Driver Timestamp, UTC seconds since 1900-01-01 -9999999
PD12 internal_timestamp Internal Timestamp, UTC seconds since 1900-01-01 -9999999
PD16 preferred_timestamp Preferred Timestamp 1 empty
PD829 date_time_array Date Time Array 1 -99
PD863 ingestion_timestamp Ingestion Timestamp, UTC seconds since 1900-01-01 -9999
PD1608 vel3d_k_temp_c Temperature cdeg_C 0
PD1609 vel3d_k_heading Heading ddegrees 0
PD1610 vel3d_k_pitch Pitch ddegrees 0
PD1611 vel3d_k_roll Roll ddegrees 0
PD1612 vel3d_k_v_scale Velocity Scale counts 0
PD1613 vel3d_k_vel0 Raw Velocity 0 counts 0
PD1614 vel3d_k_vel1 Raw Velocity 1 counts 0
PD1615 vel3d_k_vel2 Raw Velocity 2 counts 0
PD1616 vel3d_k_amp0 Amplitude0 counts 0
PD1617 vel3d_k_amp1 Amplitude1 counts 0
PD1618 vel3d_k_amp2 Amplitude2 counts 0
PD2010 vel3d_k_data_set_description Data Set Description, Bit Mask bit mask 0
PD3223 vel3d_k_beams Number of Beams 1 0
PD3233 vel3d_k_eastward_velocity Eastward Mean Point Seawater Velocity eastward_sea_water_velocity m s-1 -9999999 VELPTMN-VLE_L1 Science Data L1
PD3234 vel3d_k_northward_velocity Northward Mean Point Seawater Velocity northward_sea_water_velocity m s-1 -9999999 VELPTMN-VLN_L1 Science Data L1
PD3235 vel3d_k_upward_velocity Upward Mean Point Seawater Velocity upward_sea_water_velocity m s-1 -9999999 VELPTMN-VLU_L1 Science Data L1