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SBECTD_s


SBECTD summary data

The SBECTD is installed at the 12m node to measure conductivity, pressure and depth. These parameters are used to calculate (onboard) the salinity. The sensors are heavily guarded against fouling to get the best data possible. Although the conductivity is not served in the SBECTD_s data product, it can be recovered for data after May 2007 from an associated ftp-service.

Here is the list of field names:

Field name Description Units
Year The year the data were collected n/a
Yday Decimal year day UTC, January 1 at 00:00 is 1.0
MO The month the data was collected UTC
DA The day the data were collected UTC
HH The hour the data were collected UTC
MM The minute the data were collected UTC
SS The second the data were collected UTC
lrec_sbectd Total number of records collected during averaging period n/a
twater_sbectd_mean mean water temperature degC
saln_sbectd_mean mean salinity PSU
dpth_sbectd_mean mean water depth db (m)
twater_sbectd_median median water temperature degC
saln_sbectd_median median salinity PSU
dpth_sbectd_median median water depth db (m)
twater_sbectd_std std(water temp) degC
saln_sbectd_std std(salinity) PSU
dpth_sbectd_std std(depth) db (m)
twater_sbectd_length number of records passing RangeCheck Range [-25 35] degC
saln_sbectd_length number of records passing RangeCheck RangeCheck [1 5] S/m or [28 34] PSU
dpth_sbectd_length number of records passing RangeCheck RangeCheck [2 22] db (m)

NOTE: Outliers (4*std from the mean) are also removed prior to calculation of the statistics.


SN #2296 8/1/02 (213.1) - 9/23/02 (266.9)

  • calibrated

  • SN #2295 10/27/02(300) - 3/25/03 (84.6)


    SN #2296 4/14/03 (104.75) - 4/15/04 (105.11)


    SN # 3544 (no pressure sensor) 8/04 - 12/16/04


    SBECTD #2295 12/30/04 - 6/8/05


    SBECTD #3544 8/27/05 - 11/12/05


    SBECTD 2295 11/12/05 - 3/29/06


    SBECTD 3332 3/29/06 - 5/24/06
    SBECTD 2295 5/24/06 - 7/17/06


    SBECTD 4223 7/17/06 - 8/
  • mounted vertically again ... intake at 66" (1.67 m)
  • funnel @ intake with copper screen over mouth

  • SBECTD 4476 8/24/06 - Conductivity failure 9/8 after dive ops