CTD data - Kaikōura sperm whale research, University of Otago

CTD data collected during Marta Guerra's PhD project 'Foraging ecology of sperm whales at Kaikōura'.

Time coverage: 30-May-2015 to 2-Jan-2018, including autumn/winter field season ('winter', May-July) and spring/summer field season ('summer', Nov-Jan), with a total of 3 winters and 3 summers. CTD casts collected daily (weather permitting) throughout the duration of each field season (each field season lasted typically 8 weeks).

Spatial coverage: study area centered over the Kaikōura Canyon. Approximate area: from Kaikōura peninsula, extending out to 12 nautical mile offshore navigational limit to the East and Southeast, and extending 15 nautical miles from the Kaikōura peninsula to the South. CTD carried out over seafloor depths of c. 200m to c. 1500m.

Measured variables: temperature, salinity, chlorophyll-a concentration.

CTD depths: variable, down to a maximum of 550 m.

Instrument type: Winter 2015 = CTD Seabird scientific SBE-19, with WET-Star fluorometer. Maximum depth = 100m. Sampling frequency = 4 Hz. All other seasons = CTD RBR-concerto, with Turner Designs Cyclops-7 fluorometer. Maximum depth = 550m. Sampling frequency = 4 Hz.

Platform type: hand-hauling from 6m outboard-powered vessel 'RV Grampus'.

Quality control: data were deleted from the processed files when there was a known malfunction with one of the sensors. The processed files also had the upcast deleted from them, as well as the measurements in air, and acclimatisation period at the surface (1 minute since submersion).

For more details on the original research project, access PhD thesis here: http://hdl.handle.net/10523/9189

** NB. If you use these data, please include the following acknowledgements: Data collection and processing - Marta Guerra; Funding - New Zealand Whale and Dolphin Trust, Whale Watch Kaikoura, University of Otago, Ministry of Primary Industries.

Date (Creation): 2018-02-01

Date (Revision): 2018-02-01

Resource provider

Marine Mammal Research Group, University of Otago

PO Box 56 , Dunedin , Otago , 9016 ,

https://www.otago.ac.nz/marinescience/index.html

Hours of service: 9am to 5pm UTC+12: Monday to Friday

Other citation details: The citation in a list of references is: "NIWA and University of Otago, [year-of-data-download], Munida Transect SubAntarctic Zone CTD cast, [data-access-URL], accessed [date-of-access]."

Credit: Data collection and processing - Marta Guerra, University of Otago

Credit: Funding provided by New Zealand Whale and Dolphin Trust, Whale Watch Kaikoura, University of Otago, Ministry for Primary Industries.

Status: completed Completed

Point of contact

Marine Mammal Research Group, University of Otago - Marta Guerra

PO Box 56 , Dunedin , Otago , 9016 , New Zealand

Maintenance and update frequency: asNeeded As needed

NASA/Global Change Master Directory Earth Science Keywords Version 5.3.8

Oceans | Salinity/density | Conductivity
Oceans | Ocean Temperature | Water Temperature
Oceans | Salinity/density | Salinity

Marine Community Profile of ISO19115 v1.4 Collection Methods Vocabulary (Annex C.1.3)

Profilers/Sounders | CTD (Conductivity-Temperature-Depth Profilers)

Place

Global / Oceans | Southern Ocean
Global / Oceans | Pacific Ocean
Countries | New Zealand

Use limitation: Data from the Marine Mammal Research Group (University of Otago) are provided "as is" without any warranty as to fitness for a particular purpose. Users are kindly asked to email the contact person (marta.guerra@otago.ac.nz ) and the contact for the research group (will.rayment@otago.ac.nz ) to inform of the purpose and/or research project for which the CTD data are used.

Metadata language: eng

Character set: utf8 UTF8

Topic category

Oceans

Begin date: 2015-05-30

Distribution format

Text ( CSV )

OnLine resource: Point of truth URL of this metadata record ( WWW:LINK-1.0-http--metadata-URL )
Point of truth URL of this metadata record

OnLine resource: nzodn:ctd_kaikoura_map ( OGC:WMS-1.1.1-http-get-map )
CTD data - Kaikōura sperm whale research

OnLine resource: nzodn:ctd_kaikoura_data ( OGC:WFS-1.0.0-http-get-capabilities )
CTD data - Kaikōura sperm whale research

OnLine resource: ctd_kaikoura_map#url ( IMOS:AGGREGATION--bodaac )
This is a WFS service that returns a list of un-subsetted NetCDF files matching a query.