Oregon Shelf Surface Piercing Profiler Mooring

Reference Designator
Array Name
Coastal Endurance
A Surface-Piercing Profiler Mooring is a mooring that contains a surface-piercing profiler. The surface-piercing profiler allows for the sampling of near surface phenomena as the profiler travels through the water then breaches the surface. While on the surface, the profiler is able to transmit data to shore.
Min Depth
Max Depth
Deployment Cruise Start Date Stop Date Mooring Asset Node Asset Sensor Asset Latitude Longitude Deployment Depth Water Depth
1 EK-1503 03/18/2015 04/02/2015 CGMCE-02SHSP-00001 44.6391 -124.3
2 EK-1503 03/18/2015 04/30/2015 CGMCE-02SHSP-00002 44.6359 -124.299
3 EK-1608 08/23/2016 10/02/2016 CGMCE-02SHSP-00003 44.6378 -124.311
4 PS1610A 10/11/2016 01/06/2017 CGMCE-02SHSP-00004 44.6389 -124.299
5 PS1702A 02/13/2017 03/16/2017 CGMCE-02SHSP-00005 44.6372 -124.299
6 SKQ201704S 04/22/2017 04/26/2017 CGMCE-02SHSP-00006 44.6376 -124.304
7 EK-1708A 08/25/2017 12/07/2017 CGMCE-02SHSP-00007 44.6355 -124.303
8 PS1712A 12/07/2017 CGMCE-02SHSP-00008 44.641 -124.302
Metadata Start Date End Date Comment
Deployment: 5
3/9/17 4/18/17

The main batteries on CE02SHSP-00005 drained this week unexpectedly. CSPPs are deployed at 33.4 V. Voltage drops roughly linearly with each profile. Batteries were at 31 V at the beginning of this week. Yesterday (2017-03-09), it reported via acoustic modem that it was in a LOW POWER state, which it does automatically at 28 V to protect the main batteries. In the past, similar drains have been due to faulty connections between the main batteries and the profilers at the battery adapter plates. This has been the CSPP's main failure behavior.

This profiler should be OK to leave where it is until planned recovery in mid-April, but it would better to recover it sooner. It is 31 lbs. buoyant and it has a working Iridium beacon. We're ranging to its acoustic modem daily from CE02SHSM.

By Mike Smith, on 3/10/17
Redmine Issue #12095

Deployment: 6
Status: Note
4/25/17 10/5/17

CE02SHSP-00006 reported that it had surfaced unexpectedly April 25 at 5:10 pm local time. Within a few hours I determined that it was still tethered to its anchor. It's beacon wasn't reporting either. We recovered the profiler and its anchor the following day.

Data were sent to the profiler vendor and to CI. By April 28 we confirmed there was a firmware bug that had never been seen before. While scooching between two positions, the control canister thought the profiler was 20 cm below its destination, but the profiler's winch thought the profiler was 20 cm above its destination, so the profiler was winched up to the surface, instead of retreating 20 cm to its parking depth. The bug will be corrected in the next firmware release.

It also turns out that I had programmed the beacon improperly, so it had run out of batteries. We switched to a new beacon model this year. I confirmed with the vendor which settings to use.

Redeployment is planned for May 19, 2017.

Communications to the acoustic modem on the neighboring surface mooring just went down, so I recommend not redeploying a CSPP here until the mooring is turned.

- Jon Fram

By Mike Smith, on 5/16/17
Redmine Issue #12311

New Note

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