Dataset: CTD_rl
Deployment: EN264

Process Study CTD data, Gulf of Maine/Georges Bank, 1994-1995.

Principal Investigator:

Richard Limeburner (Woods Hole Oceanographic Institution, WHOI)

BCO-DMO Data Manager:

Ms Dicky Allison (Woods Hole Oceanographic Institution, WHOI BCO-DMO)

Project:

U.S. GLOBEC Georges Bank (GB)

Data URL:

https://osprey.bco-dmo.org/dataset-deployment/449390/data

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Description

Process Study CTD data, Gulf of Maine/Georges Bank

Contributor:
Richard Limeburner
Woods Hole Oceanographic Institution
Woods Hole, MA 02543
rlimeburner@whoi.edu

Dataset:
Process Study CTD data, Gulf of Maine/Georges Bank

NOTE:
These data sets should be considered preliminary. A cursory quality review has been performed and the results of this review are tabulated below on a cruise by cruise basis.

CHARLES ISELIN CRUISE 9407, CTD DATA QUALITY REVIEW

GENERAL COMMENT: THIS DATA SET IS OF POOR QUALITY, USE "CAUTION".

1..CAST SAMPLING INFORMATION EDITED TO BE CONSISTENT WITH THE EVENT LOG. DATES AND TIMES ARE REPORTED AS GMT.
2..CASTS 96 AND 98 CONTAIN ONLY A SURFACE DATA CYCLE. FILES DELETED. 3..OXYGEN BAD ALL CASTS. REPLACED WITH -9..
4..SALINITY IS NOISY. SOME CASTS WORSE THEN OTHERS. NO ATTEMPT TO CLEAN UP. USE WITH CAUTION.
5..LIGHT TRANSMISSION. CASTS 68 - 99 SHOW A ONE VOLT OFFSET FROM CASTS 1-68. CALIBRATION PROBLEM? USE WITH CAUTION. NO ATTEMPT TO CLEAN UP SPIKES.
6..FLUORESCENCE. CASTS 68 - 99 SHOW A TWO VOLT OFFSET FROM CASTS 1 - 68. CALIBRATION PROBLEM? USE WITH CAUTION. NO ATTEMPT TO CLEAN UP SPIKES.

ENDEAVOR CRUISE 259, CTD DATA QUALITY REVIEW

1..CAST SAMPLING INFORMATION WAS EDITED TO BE CONSISTENT WITH THE EVENT LOG. DATES AND TIMES ARE REPORTED AS GMT.
2..NO CTD CAST 20. APPEARS TO BE THE RESULT OF MIS-NUMBERING.
3..CTD CAST 13 HAS ONLY ONE DATA CYCLE, SURFACE VALUE. FILE DELETED.
4..CTD CAST 27. THE DATA REPORTED FOR CAST 27 IS THE EXACT SAME AS FOR CAST 28. THE FILE FOR CAST 27 DELETED.
5..CTD CAST 29. FLUOROMETER DATA BAD ENTIRE CAST, REPLACED WITH -9.0 BAD/MISSING DATA INDICATOR.
6..CTD CAST 30. TRANSMISSOMETER DATA, DATA SPIKE AT 274 DECIBARS. REPLACED WITH -9.0.
7..OXYGEN DISPLAYS OCCASIONAL DATA SPIKES AND SHIFTS EXTENDING OVER MORE THEN ONE DECIBAR. NO ACTION TAKEN

ENDEAVOR CRUISE 260, CTD DATA QUALITY REVIEW

1..CAST SAMPLING INFORMATION WAS EDITED TO BE CONSISTENT WITH THE EVENT LOG. DATES AND TIMES ARE REPORTED AS GMT.
2..CAST NUMBERS 26, 27 AND 28 MISSING.
3..OXYGEN DISPLAYS OCCASIONAL DATA SPIKES EXTENDING OVER MORE THEN ONE DECIBAR (CAST 13 AT 110 DECIBARS, AND CAST 16 AT 41 DECIBARS). NO ACTION TAKEN.

ENDEAVOR CRUISE 262, CTD DATA QUALITY REVIEW

1..CAST SAMPLING INFORMATION EDITED TO BE CONSISTENT WITH THE EVENT LOG. DATES AND TIMES ARE REPORTED AS GMT.
2..CAST NUMBERS 20, AND 21. ALL OXYGEN VALUES BAD. REPLACED WITH -9..
3..LIGHT TRANSMISSION. ONE DECIBAR DATA SPIKES REMOVED FROM CAST 2, 5 AND 23, SURFACE VALUES. A ONE DECIBAR SPIKE REMOVED FROM CAST 21 AT 14 DECIBARS.
4..FLUORESCENCE. DATA SPIKE REMOVED FROM CAST 21 AT 14 DECIBARS.

ENDEAVOR CRUISE 264, CTD DATA QUALITY REVIEW

1..CAST SAMPLING INFORMATION EDITED TO BE CONSISTENT WITH THE EVENT LOG. DATES AND TIMES ARE REPORTED AS GMT.
2..CAST NUMBERS 29, 30, 32, AND 34 MISSING.
3..LIGHT TRANSMISSION. ONE DECIBAR DATA SPIKES REMOVED FROM CAST 2 AT 10M, AND CAST 23 AT 88M.

ENDEAVOR CRUISE 266, CTD DATA QUALITY REVIEW

1..CAST SAMPLING INFORMATION EDITED TO BE CONSISTENT WITH THE EVENT LOG. DATES AND TIMES ARE REPORTED AS GMT.
2..DATA FOR CAST NUMBERS 22, AND 23 MISSING.

ENDEAVOR CRUISE 267 LEG 1, CTD DATA QUALITY REVIEW

1..CAST SAMPLING INFORMATION EDITED TO BE CONSISTENT WITH THE EVENT LOG. DATES AND TIMES ARE REPORTED AS GMT.
2..DATA FOR CAST NUMBERS 4, 98, AND 103 MISSING.
3..CAST 1 AND 81 ALL VALUES REMOVED FROM LAST DATA CYCLE DUE TO DATA SPIKES.
4..FLUORESCENCE. DATA OFF SCALE ON THE HIGH SIDE. SEVERAL CASTS EXCEED THE MAX. OF VALUE OF 5 VOLTS.

ENDEAVOR CRUISE 267 LEG 2, CTD DATA QUALITY REVIEW

1..CAST SAMPLING INFORMATION EDITED TO BE CONSISTENT WITH THE EVENT LOG. DATES AND TIMES ARE REPORTED AS GMT.
2..ONE DECIBAR SALINITY SPIKES REMOVED FROM STATION 210 at 24m, 214 at 16m and 217 at 4m.

ENDEAVOR CRUISE 269, CTD DATA QUALITY REVIEW

1..CAST SAMPLING INFORMATION EDITED TO BE CONSISTENT WITH THE EVENT LOG. DATES AND TIMES ARE REPORTED AS GMT.
2..CAST 30, FLUORESCENCE DATA SPIKE AT 69 METERS REMOVED.
3..OXYGEN VERY NOISY (LARGE NUMBER OF SPIKES). NO ACTION TAKEN. USE WITH CAUTION.

updated: November 16, 2005; gfh

Methods & Sampling

Dataset acquisition description

Process Study CTD data, Gulf of Maine/Georges Bank.

Deployment-specific acquisition description

Process Study CTD data, Gulf of Maine/Georges Bank.

Data Processing Description

Dataset Processing Description

Deployment-specific processing description

ENDEAVOR CRUISE 264, CTD DATA QUALITY REVIEW
1..CAST SAMPLING INFORMATION EDITED TO BE CONSISTENT WITH THE EVENT LOG. DATES AND TIMES ARE REPORTED AS GMT. 
2..CAST NUMBERS 29, 30, 32, AND 34 MISSING. 
3..LIGHT TRANSMISSION. ONE DECIBAR DATA SPIKES REMOVED FROM CAST 2 AT 10M, AND CAST 23 AT 88M.

More information about this dataset deployment

Funding

Award Number	Funding Source
unknown GB NOAA	National Oceanic and Atmospheric Administration
unknown GB NSF	National Science Foundation

Instruments

CTD - profiler

Supplied Name: Conductivity, Temperature, Depth

Supplied Description:

CTD measurements taken, CTD unit unidentified.
# Inst. # = IM960560; CAL Extn = C00
#  Averover = 1DBar; ScanRate = 25.000Hz

Instrument Type

Generic Name: CTD - profiler

Community Identifier: http://vocab.nerc.ac.uk/collection/L05/current/130/

Generic Description:

The Conductivity, Temperature, Depth (CTD) unit is an integrated instrument package designed to measure the conductivity, temperature, and pressure (depth) of the water column. The instrument is lowered via cable through the water column. It permits scientists to observe the physical properties in real-time via a conducting cable, which is typically connected to a CTD to a deck unit and computer on a ship. The CTD is often configured with additional optional sensors including fluorometers, transmissometers and/or radiometers. It is often combined with a Rosette of water sampling bottles (e.g. Niskin, GO-FLO) for collecting discrete water samples during the cast.

This term applies to profiling CTDs. For fixed CTDs, see https://www.bco-dmo.org/instrument/869934.

CTD Neil Brown Mark III

Supplied Name: MkIIICTD

Supplied Description:

Mark III CTD

Instrument Type

Generic Name: CTD Neil Brown Mark III

Acronym: CTD NBIS MK3

Community Identifier: http://vocab.nerc.ac.uk/collection/L22/current/TOOL0002/

Generic Description:

The Neil Brown Instrument Systems Mark III Conductivity, Temperature, Depth (CTD) instrument is an integral unit containing pressure, temperature and conductivity sensors with an optional dissolved oxygen sensor in a pressure-hardened casing. Developed in the 1970s, the Neil Brown CTD unit was able to digitize conductivity, temperature and pressure measurements at sufficient speeds to permit oceanographers to study 10 cm features at winch lowering speeds of 30 meters per minute. The most widely used variant in the 1980s and 1990s was the MK3B. The MK3C fitted with an improved pressure sensor to reduce hysteresis was developed to meet the requirements of the WOCE project. The instrument is no longer in production, but is supported (repair and calibration) by General Oceanics.

CTD Neil Brown Mark III plus TAPS

Supplied Name: Neil Brown CTD with TAPS

Supplied Description:

Neil Brown CTD with TAPS

Instrument Type

Generic Name: CTD Neil Brown Mark III plus TAPS

Acronym: CTD NBIS MK3-TAPS

Generic Description:

This is an integrated instrument package comprising a Neil Brown Instrument Systems Mark III Conductivity, Temperature, Depth (CTD) profiler unit with a Tracor Acoustic Profiling System (TAPS). (see TAPS entry for a description of that instrument)

TRACOR Acoustic Profiling System

Supplied Name: TAPS

Supplied Description:

Instrument Type

Generic Name: TRACOR Acoustic Profiling System

Acronym: TAPS

Generic Description:

The TRACOR Acoustic Profiling System (TAPS) is custom designed zooplankton sampler developed by V. Holliday of Tracor Inc. It uses a four transducer array operating at frequencies 265 kHz, 420 kHz, 1.1 MHz, and 3 MHz. The transducer array is designed to provide information on the distribution of individual organisms ranging in size from individual copepods to nauplii at distances of 2-3 m.

Parameters

Supplied Name	Supplied description	Supplied Units	Standard Name
cruiseid	cruise identification		cruiseid
year	starting year, GMT		year
station	pre-assigned station number		station
month_gmt	starting month 1-12, GMT		month_gmt
day_gmt	starting day 01-31, GMT		day_gmt
time_start_gmt	starting time for the cast, GMT	HHmm.m	time_begin
time_end_gmt	ending time for the cast, GMT	HHmm.m	time_end
lat_start	starting latitude, negative = south	decimal degrees	lat_start
lon_start	starting longitude, negative = west	decimal degrees	lon_start
lat_end	ending latitude	decimal degrees	lat_end
lon_end	ending longitude	decimal degrees	lon_end
depth_w	water depth	meters	depth_w
press_min	minimum pressure, range within cast	decibars	press
press_max	maximum pressure	decibars	press
temp_min	minimum temperature, range within cast	degrees C.	temp
temp_max	maximum temperature	degrees C.	temp
sal_min	minimum salinity, range within cast, PSS	dimensionless	sal
sal_max	maximum salinity, PSS	dimensionless	sal
o2_min	minimum dissolved oxygen, range within cast	milliliter per liter	O2
o2_max	maximum dissolved oxygen	milliliter per liter	O2
press	pressure at observation/sample (equates to water depth)	decibars	press
temp	water temperature	degrees C	temp
sal	salinity, as calculated from CTD conductivity and temperature, PPS	dimensionless	sal
o2	dissolved oxygen	milliliter per liter	O2
flvolt	relative fluorescence	volts	flvolt
light_tran_v	light transmission as volts	volts	trans_v
numb_obs	number of observations		numb_obs

Database

Contribute Data

Dataset: CTD_rl
Deployment: EN264

Process Study CTD data, Gulf of Maine/Georges Bank

Dataset acquisition description

Deployment-specific acquisition description

Dataset Processing Description

Deployment-specific processing description

Database

Contribute Data

Dataset: CTD_rlDeployment: EN264

Process Study CTD data, Gulf of Maine/Georges Bank

Dataset acquisition description

Deployment-specific acquisition description

Dataset Processing Description

Deployment-specific processing description

Dataset: CTD_rl
Deployment: EN264