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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
- Last calibrated
- 11/4/02
- after pump failure/C cell replatinized
SN #2295 10/27/02(300) - 3/25/03 (84.6)
- Last calibrated:
- 4/29/03
- recalib/replatinized - node maintenance
SN #2296 4/14/03 (104.75) - 4/15/04 (105.11)
- Last calibrated:
- Notes:
- 4/20/03 (110.7) - 5/1/03 (121.6) - poor data/cycled power/cleared pump
SN # 3544 (no pressure sensor) 8/04 - 12/16/04
- Last calibrated:
- Notes:
- SBECTD pump use discontinued 8/04
SBECTD #2295 12/30/04 - 6/8/05
SBECTD #3544 8/27/05 - 11/12/05
- Last calibrated:
- Notes:
- deployed working SBECTD 3544 8/27/05 but failed in field
moved ports a number of times in attempt to revive it but never succeeded
-
recovered 11/12/05 - noise in line heavily fouled with barnacles
SBECTD 2295 11/12/05 - 3/29/06
- Last calibrated:
- 8/05 - internal pump installed
- Notes:
- heavy anti-foulant applied
- quick drop in salinitity .. tried power cycling ... fouled?
- cleaned up insitu - 3/7/06 - sm
SBECTD 3332 3/29/06 - 5/24/06
- Last calibrated: 05/13/2005
- with pressure & internal pump
- Notes:
- heavy anti-foulant applied
- funnel @ intake with copper screen over mouth
- data became garbage on 098
- replaced cable on 4/19/06
SBECTD 2295 5/24/06 - 7/17/06
- Last calibrated:
- WHOI Cal lab 5/20/06 - internal pump installed
- Instrument mounted sideways (new **) = height is 76"
- Notes:
- heavy anti-foulant applied
- Stopped 2006149 17:20+ March 29 - PUMPON makes it fail
Had to reenter 8/29/05 calibration coefficients by hand
Running - but user be ware (is it clogged?)
SBECTD 4223 7/17/06 - 8/
- Last calibrated: checked at WHOI cal lab 7/06
- no pressure & internal pump
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
- Last calibrated: 5 October 2005
- checked at WHOI cal lab (MS) 7/06
- mounted vertically again ... intake at 66" (1.67 m + 0.14m?)
- funnel @ intake with copper screen over mouth
- .... perhaps trouble was diver air trapped in pump?
- CHANGED Sampling scheme NCYCLES/INTERVAL was 4/2 now 50/60
SBECTD 2295 deployed 10/10/06 - 4/23/07
- Last calibrated: 26 August 2006
- internal pump physically removed and disabled in software
- mounted vertically again ... intake at 66" (1.67 m + 0.14m?)
- no funnel @ intake with copper screen over mouth
- CHANGED Sampling scheme NCYCLES/INTERVAL was 4/2 now 50/60
- simultaneously deployed with CTD2 and TRAN1
- CTD2 was deployed at same height as SBECTD
SBECTD 4476 - deployed 4/23/07
- Last calibrated: 5 October 2005
- checked at WHOI cal lab (MS) 7/06
- mounted vertically again ... intake at 66" (1.67 m + 0.14m?)
- funnel @ intake with copper screen over mouth
- Sampling scheme NCYCLES/INTERVAL was 4/2 now 50/60
SBECTD 4442 - deployed 12/14/08
- Last calibrated: October 2008
- mounted vertically again ... intake at 66" (1.67 m + 0.14m?)
- intake with copper screen over mouth
- NO DEPTH
- Sampling scheme NCYCLES/INTERVAL was 4/2 now 50/60
SBECTD 2295 deployed 9/2009
- Last calibrated: ?
- mounted vertically again ... intake at 66" (1.67 m + 0.14m?)
- intake with copper screen over mouth
- Sampling scheme NCYCLES/INTERVAL 50/60
SBECTD 4476 deployed 10/11/2010 - 5/2/2011 (stopped working 3/7/2011) - corroded pins
- Last calibrated: ?
- Pump Installed (impellor replaced by jf 9/10)
- mounted vertically again ... intake at 66" (1.67 m + 0.14m?)
- intake with copper screen over mouth
- Sampling scheme NCYCLES/INTERVAL 50/60
New CTD installed 9/27 for OASIS project
NOTE: processing wasn't on until 1/4/2012 -- so OcnDat salinity is from CTD2 or missing
so get from SBECTD files
August 9, 2012 - replaced CTD (no reduncancy so there's no associated CTD2_s data)
SN: 3332
Updated: 12/9/12-jjf