Dataset: CTD_Weicker
Deployment: LW_053012

CTD data from 5 stations in Fisher's Island Sound

Principal Investigator:

George McManus (University of Connecticut, UConn - Avery Point)

Co-Principal Investigator:

Laura A. Katz (Smith College)

Contact:

George McManus (University of Connecticut, UConn - Avery Point)

BCO-DMO Data Manager:

Shannon Rauch (Woods Hole Oceanographic Institution, WHOI BCO-DMO)

Project:

Diversity and dynamics of planktonic ciliates - what can next-generation sequencing technologies tell us? (CiliateSequencing)

Current State:

Final no updates expected

Version:

06 Sept 2012

Deployment Synonyms:

Weicker 30 May 2012

Version Date:

2012-09-06

Data URL:

https://www.bco-dmo.org/dataset-deployment/455433/data

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Description

Temperature, salinity, fluorescence, and sigma-t density measured by CTD are reported for 5 stations in Fisher's Island Sound.

Methods & Sampling

Dataset acquisition description

Note: Stations 1, 3, and 5 were at a drogue. For stations 2 and 4, the ship moved about 1 kilometer away from the drogue. When station 2 was sampled, the drogue had moved east of it and sampling occurred up-current from the drogue. Tide was ebb --> slack --> flood.

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Header Information from Sea-Bird SBE19 Data File:
Software Version 1.59
Temperature SN = 504; Conductivity SN = 504

SEACAT PROFILER V2.1e SN 504 05/30/12 13:51:21.934
pressure sensor: serial no = 184805, range = 100 psia, tc = -585
clk = 32767.742 iop = 142 vmain = 11.9 vlith = 5.3
ncasts = 5 samples = 1684 free = 19973 lwait = 0 msec
sample rate = 1 scan every 0.5 seconds
minimum raw conductivity frequency for pump turn on = 0 hertz; pump delay = 30 seconds
battery cutoff = 7.2 volts; number of voltages sampled = 4

cast 0: 05/30 09:50:19 samples 0 to 388 nquan = 7 nvalues = 389
cast 1: 05/30 10:53:36 samples 389 to 774 nquan = 7 nvalues = 386
cast 2: 05/30 11:23:25 samples 775 to 1113 nquan = 7 nvalues = 339
cast 3: 05/30 11:46:51 samples 1114 to 1358 nquan = 7 nvalues = 245
cast 4: 05/30 12:12:29 samples 1359 to 1683 nquan = 7 nvalues = 325

units = specified
name 0 = sigma-t00: Density [sigma-t, Kg/m^3 ]
name 1 = depSM: Depth [salt water, m], lat = 41.00
name 2 = wetStar: Fluorescence, WET Labs WETstar [mg/m^3]
name 3 = sal00: Salinity, Practical [PSU]
name 4 = t090C: Temperature [ITS-90, deg C]
name 5 = timeS: Time, Elapsed [seconds]
name 6 = flag: 0.000e+00

interval = seconds: 0.5; bad_flag = -9.990e-29

sensor 1 = Frequency 0, Temperature; Temp. Sensor ID: 55; SerialNumber: 504;
CalibrationDate: 28-Jan-11

sensor = 2 Frequency 1, Conductivity; Cond. Sensor ID: 3; SerialNumber: 504;
CalibrationDate: 28-Jan-11

sensor = 3 A/D voltage 0, Oxygen Current, Beckman/YSI; Oxygen Sensor ID: 36; SerialNumber: 230238;
CalibrationDate: 21-Mar-2011

sensor = 4 A/D voltage 1, Oxygen Temperature, Beckman/YSI; Oxygen Sensor ID: 39; SerialNumber: 230238;
CalibrationDate: 21-Mar-2011

sensor = 5 A/D voltage 2, Fluorometer, WET Labs WETstar; FluoroWetlabWetstar Sensor ID: 21; SerialNumber: WS3S-166;
CalibrationDate: 23-Feb-2011; ScaleFactor: 15.400

sensor = 6 A/D voltage 3, Free

sensor = 7 Pressure voltage, Pressure, Strain Gauge; Pressure Sensor ID: 49; SerialNumber: 504;
CalibrationDate: 04-Feb-11

datcnv_skipover = 0
-----------

Data Processing Description

Dataset Processing Description

Only downcast data is included; surface equilibration has been edited out.

The WetStar Fluorometer calibrated by Seabird (Feb 2011) was NOT validated with contemporaneous filtered samples, so values reported should be considered relative. CTD data was processed with SeaBird software.

More information about this dataset deployment

Funding

Award Number	Funding Source
OCE-1129734	NSF Division of Ocean Sciences
OCE-1130033	NSF Division of Ocean Sciences

Instruments

CTD Sea-Bird SEACAT 19

Supplied Description:

Instrument Type

Generic Name: CTD Sea-Bird SEACAT 19

Acronym: CTD SBE 19

Community Identifier: http://vocab.nerc.ac.uk/collection/L22/current/TOOL0042/

Generic Description:

The Sea-Bird SBE 19 SEACAT Recorder measures conductivity, temperature, and pressure (depth). The SEACAT is self-powered and self-contained and can be deployed in profiling or moored mode. The SBE 19 SEACAT was replaced in 2001 by the 19plus. more information from Sea-Bird Electronics

Parameters

Supplied Name	Supplied description	Supplied Units	Standard Name
day_local	Day of month (local time).	dd (01 to 31)	day_local
month_local	Month of year (local time).	mm (0 to 12)	month_local
year	4-digit year. in YYYY format	unitless	year
sta	Station ID number.	unitless	sta
lat_start	Latitude at start of CTD cast. North = positive.	decimal degrees	lat_start
lon_start	Longitude at start of CTD cast. West = negative.	decimal degrees	lon_start
depth_w	Depth of water at sampling station.	meters	depth_w
time_start_local	Local time at start of CTD cast; 24-hr clock.	HHMM	time_start_local
depth	Depth of cast.	meters	depth
time_elapsed	Time elapsed from start of measurement.	seconds	time_elapsed
sigma_t	Sigma-t density.	kg/m^3	sigma_t
fluor	Chlorophyll fluorescence from WetStar Fluorometer.	mg/m^3	fluor
sal	Salinity measured by CTD.	PSU	sal
temp	Temperature, in degrees Celsius.	degrees C	temp
time_diff	The number of hours added to local time to convert to GMT.	hours	time_diff
ISO_DateTime_Local	Date and time formatted to ISO8601 standard (local time). See time_diff for time zone info. in yyyy-MM-dd'T'HH:mm:ss'Z' format	unitless	ISO_DateTime_Local

Database

Contribute Data

Dataset: CTD_Weicker
Deployment: LW_053012

Dataset acquisition description

Dataset Processing Description

Database

Contribute Data

Dataset: CTD_WeickerDeployment: LW_053012

Dataset acquisition description

Dataset Processing Description

Dataset: CTD_Weicker
Deployment: LW_053012