Dataset: DAS

Name: Uncalibrated data from the ship's Data Acquisition System (DAS) from R/V Tangaroa cruise 61TG_3052 in the Southern Ocean in 1999 (SOIREE project)
Published: 2008-07-16
Keywords: oceans

Cite This Dataset

Spatial Extent: N:-41.3653 E:171.6294 S:-62.0109 W:138.9638

Project:

Southern Ocean Iron Release Experiment (SOIREE)

Program:

Iron Synthesis (FeSynth)

Principal Investigator:

Dr Edward Abraham (New Zealand National Institute of Water and Atmospheric Research, NIWA)

Contact:

Doug Mackie (University of Otago)

BCO-DMO Data Manager:

Stephen R. Gegg (Woods Hole Oceanographic Institution, WHOI)

Version:

16July2008

Version Date:

2008-07-16

Validated:

Yes

Current State:

Final no updates expected

Uncalibrated data from the ship's Data Acquisition System (DAS) from R/V Tangaroa cruise 61TG_3052 in the Southern Ocean in 1999 (SOIREE project)

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Description

SOIREE Uncalibrated data from the ship's Data Acquisition System (DAS)

Underway data collected during SOIREE, sampled
at 5 minute intervals

The file also contains shipboard meteorological data.

The data are presented in a raw, uncalibrated form.

Missing data are marked by "nd".

Methods & Sampling

See SOIREE Preliminary Voyage Report
See comments in dataset description as well

A Chelsea instruments CTD/Fluorometer was mounted in a chamber that was supplied with

flow-through sea-water. From this instrument Temperature and Fluorescence were logged.

A Chelsea Instruments Fasttracka FRRF was used to record phytoplankton photosynthetic

competency (Fv/Fm).

Data Processing Description

See SOIREE Preliminary Voyage Report
See comments in dataset description as well

BCO-DMO Processing Notes

Generated from original file das_5minute.txt provided on the
Deep-Sea Research II 48 (2001) accompanying CD-Rom

BCO-DMO Edits

- Parameter names modified to conform to BCO-DMO convention

- date reformatted to YYYYMMDD

- time reformatted to HHMM

- Note: Some times with 59 seconds truncated when fmtted for BCO-DCO

- lat/lon values padded o 4 decimal places

- other data values padded to 2 decimal places

- Note: Wind Speed and Wind Direction appear to have same values

Data Files

File
DAS.csv (Comma Separated Values (.csv), 541.24 KB) MD5:695a2a5cc695de5867fb0b6dfcb8ef05 Primary data file for dataset ID 2849

More Information about this dataset

Funding Sources

None available yet

Deployments

Deployment	Synonyms	Start Date	Platform	Investigator
61TG_3052	SOIREE	1999-01-31	R/V Tangaroa	Philip W. Boyd (Chief Scientist)	data info

Instruments

CTD-FRRfluorometer

Supplied Name: CTD/Fluorometer

Supplied Description:

Chelsea instruments CTD-Fluorometer was used to log Temperature and Fluorescence

Instrument Type

Generic Name: CTD-FRRfluorometer

Acronym: CTD-FRRf

Generic Description:

A CTD-FRRf fluorometer is an instrument package designed to measure hydrographic information (pressure, temperature and conductivity) and chlorophyll fluorescence. (see more at URL: http://www.chelsea.co.uk/Instruments%20FASTtracka.htm) For example, a Chelsea FASTtracka CTD (conductivity, temperature, and depth) device can be configured with additional sensors to measure fluorescence and photosynthetically active radiation (PAR) in the water column. Fluorescence data collected by the CTD are subsequently calibrated and corrected to give the average concentration of chlorophyll a in the water column. The Chelsea system can be configured as part of a towed package or in a shipboard pumping system. (see more from Chelsea Instruments, Molesey, Surrey, United Kingdom at URL: http://www.chelsea.co.uk/

Fast Repetition Rate Fluorometer

Supplied Name: Fast Repetion Rate Fluorometer

Supplied Description:

A Chelsea Instruments Fasttracka FRRF was used to record phytoplankton photosynthetic
competency (Fv/Fm)

Instrument Type

Generic Name: Fast Repetition Rate Fluorometer

Acronym: FRRf

Community Identifier: http://vocab.nerc.ac.uk/collection/L05/current/113/

Generic Description:

An FRRf is used for measuring the fluorescence of a sample of phytoplankton photosynthetic competency (Fv/Fm).

Parameters

Date and time formats are described in python strftime() syntax.

Supplied Name	Supplied description	Supplied Units	Standard Name
date	date	YYYYMMDD	date
lon	longitude, negative denotes West	decimal degrees	lon
lat	latitude, negative denotes South	decimal degrees	lat
time	time	HHMM	time
SeaTemp	Sea Surface Temperature	degrees celsius	SST
fluor	Fluorescence	volts	fluor
Fv_to_Fm_from_FRRF	Ratio of Phytoplankton Photosynthetic Competency from Fast Repetition Rate Fluorometry	dimensionless	no_bcodmo_term
WindSpeed	Wind Speed	knots	wind_speed_kts
WindDirection	Wind Direction	degrees	wind_dir
AirTemp	Air Temperature	degrees celsius	temp_air
BarometricPressure	Barometric Pressure	decibars	press_bar
RelativeHumidity	Relative Humidity	percentage	humidity

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Dataset: DAS