Data Trawler - Event Details

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Voyage: IN2015_C02 [details]
Subject: CTD Altimeter calibration correction
Event Identifier:
When: 2015-12-02 08:24:12 UTC      [entered into Elog as 2015-12-02 08:24:12]

Position from underway logging
Latitude: -37.2335     Longitude: 135.4449
Equipment: CTD      Linked to equipment register: CTD - Seabird 911 with 24 Bottle Rosette [view]
Action: Repair

The CTD calibration coefficients for the PA500 Altimeter were incorrectly set. a1 was -0.02442 instead of -0.01221. This has been corrected.

The correct values for this altimeter are:

a0 = 50

a1 = -0.01221

This error was evident on IN2015_V02 but not explained or corrected at the time. See the IN2015_V02 Instrumentation report for a plot of this.

Logged by: Ian McRobert      [entered into Elog as Ian McRobert]
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