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RAN CTD Profile Data - HMAS MELVILLE ProjectID: HI470MEL_H From: 2009-11-16 To: 2009-11-16

Created 13/03/2025

Updated 13/03/2025

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This dataset contains quality controlled vertical profiles of pressure, temperature and salinity measured by a Conductivity, Temperature and Depth (CTD) probe. The dataset contains 1 CTD profiles (casts) obtained during RAN Hydrographic Survey cruise HI470MEL_H from HMAS MELVILLE. The CTD was manufactured by Falmouth Scientific and is the "2-inch Micro CTD" model. This CTD type is referred to operationally as the HS_CTD. This CTD is fitted within an inductive type conductivity cell, a platinum thermometer and silicon pressure sensor. The CTD temperature sensor is calibrated on the ITS-90 temperature scale against a master CTD using a controlled temperature bath. The pressure sensor is calibrated using a Druck Pressure Calibrator. The conductivity sensor is calibrated in a temperature controlled bath against seawater samples of known conductivity. The HS_CTD is lowered and raised by a hand winch sampling at a rate of 1.83 Hz. Data files were recorded in the downcast and upcast direction but most data is from downcasts due to higher quality. Raw CTD pressure data is not always monotonic due to transient up/down motion of winch/ship. Raw pressure data is subsetted to give a monotonic (increasing) sequence and then linearly interpolated to 1 decibar pressure intervals and converted to netCDF format files. Data is then flagged with quality control flags after visual inspection and comparison to average climatology and historical CTD casts.

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Additional Info

Field Value
Title RAN CTD Profile Data - HMAS MELVILLE ProjectID: HI470MEL_H From: 2009-11-16 To: 2009-11-16
Language eng
Licence notspecified
Landing Page https://devweb.dga.links.com.au/data/dataset/2fe9227e-4e4f-447f-ad52-3f745d48b69a
Contact Point
CSIRO Oceans & Atmosphere
info@aodn.org.au
Reference Period 16/11/2009 - 16/11/2009
Geospatial Coverage {"type": "Point", "coordinates": [149.04667, -20.48333]}
Data Portal data.gov.au

Data Source

This dataset was originally found on data.gov.au "RAN CTD Profile Data - HMAS MELVILLE ProjectID: HI470MEL_H From: 2009-11-16 To: 2009-11-16". Please visit the source to access the original metadata of the dataset:
https://devweb.dga.links.com.au/data/dataset/ran-ctd-profile-data-hmas-melville-projectid-hi470mel_h-from-2009-11-16-to-2009-11-16

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