Metadata Report for BODC Series Reference Number 1699266


Metadata Summary

Data Description

Data Category Water sample data
Instrument Type
NameCategories
Niskin bottle  discrete water samplers
Instrument Mounting lowered unmanned submersible
Originating Country United Kingdom
Originator Dr Ken Jones
Originating Organization Dunstaffnage Marine Laboratory (now Scottish Association for Marine Science)
Processing Status banked
Online delivery of data Download available - Ocean Data View (ODV) format
Project(s) LOIS Shelf Edge Study (LOIS - SES)
 

Data Identifiers

Originator's Identifier CH125B_CTD_PIGX_59:CP105
BODC Series Reference 1699266
 

Time Co-ordinates(UT)

Start Time (yyyy-mm-dd hh:mm) 1996-02-22 07:34
End Time (yyyy-mm-dd hh:mm) -
Nominal Cycle Interval -
 

Spatial Co-ordinates

Latitude 56.50639 N ( 56° 30.4' N )
Longitude 9.06092 W ( 9° 3.7' W )
Positional Uncertainty 0.05 to 0.1 n.miles
Minimum Sensor or Sampling Depth 5.7 m
Maximum Sensor or Sampling Depth 294.4 m
Minimum Sensor or Sampling Height 17.4 m
Maximum Sensor or Sampling Height 306.1 m
Sea Floor Depth 311.8 m
Sea Floor Depth Source -
Sensor or Sampling Distribution Unspecified -
Sensor or Sampling Depth Datum Unspecified -
Sea Floor Depth Datum Unspecified -
 

Parameters

BODC CODERankUnitsTitle
ADEPZZ011MetresDepth (spatial coordinate) relative to water surface in the water body
BOTTFLAG1Not applicableSampling process quality flag (BODC C22)
CPHLFLP11Milligrams per cubic metreConcentration of chlorophyll-a {chl-a CAS 479-61-8} per unit volume of the water body [particulate >GF/F phase] by filtration, acetone extraction and fluorometry
PHAEFLP11Milligrams per cubic metreConcentration of phaeopigments {pheopigments} per unit volume of the water body [particulate >GF/F phase] by filtration, acetone extraction and fluorometry
SAMPRFNM1DimensionlessSample reference number

Definition of BOTTFLAG

BOTTFLAGDefinition
0The sampling event occurred without any incident being reported to BODC.
1The filter in an in-situ sampling pump physically ruptured during sample resulting in an unquantifiable loss of sampled material.
2Analytical evidence (e.g. surface water salinity measured on a sample collected at depth) indicates that the water sample has been contaminated by water from depths other than the depths of sampling.
3The feedback indicator on the deck unit reported that the bottle closure command had failed. General Oceanics deck units used on NERC vessels in the 80s and 90s were renowned for reporting misfires when the bottle had been closed. This flag is also suitable for when a trigger command is mistakenly sent to a bottle that has previously been fired.
4During the sampling deployment the bottle was fired in an order other than incrementing rosette position. Indicative of the potential for errors in the assignment of bottle firing depth, especially with General Oceanics rosettes.
5Water was reported to be escaping from the bottle as the rosette was being recovered.
6The bottle seals were observed to be incorrectly seated and the bottle was only part full of water on recovery.
7Either the bottle was found to contain no sample on recovery or there was no bottle fitted to the rosette position fired (but SBE35 record may exist).
8There is reason to doubt the accuracy of the sampling depth associated with the sample.
9The bottle air vent had not been closed prior to deployment giving rise to a risk of sample contamination through leakage.

Definition of Rank

  • Rank 1 is a one-dimensional parameter
  • Rank 2 is a two-dimensional parameter
  • Rank 0 is a one-dimensional parameter describing the second dimension of a two-dimensional parameter (e.g. bin depths for moored ADCP data)

Problem Reports

No Problem Report Found in the Database


Data Access Policy

Open Data supplied by Natural Environment Research Council (NERC)

You must always use the following attribution statement to acknowledge the source of the information: "Contains data supplied by Natural Environment Research Council."


Narrative Documents

Niskin Bottle

The Niskin bottle is a device used by oceanographers to collect subsurface seawater samples. It is a plastic bottle with caps and rubber seals at each end and is deployed with the caps held open, allowing free-flushing of the bottle as it moves through the water column.

Standard Niskin

The standard version of the bottle includes a plastic-coated metal spring or elastic cord running through the interior of the bottle that joins the two caps, and the caps are held open against the spring by plastic lanyards. When the bottle reaches the desired depth the lanyards are released by a pressure-actuated switch, command signal or messenger weight and the caps are forced shut and sealed, trapping the seawater sample.

Lever Action Niskin

The Lever Action Niskin Bottle differs from the standard version, in that the caps are held open during deployment by externally mounted stainless steel springs rather than an internal spring or cord. Lever Action Niskins are recommended for applications where a completely clear sample chamber is critical or for use in deep cold water.

Clean Sampling

A modified version of the standard Niskin bottle has been developed for clean sampling. This is teflon-coated and uses a latex cord to close the caps rather than a metal spring. The clean version of the Levered Action Niskin bottle is also teflon-coated and uses epoxy covered springs in place of the stainless steel springs. These bottles are specifically designed to minimise metal contamination when sampling trace metals.

Deployment

Bottles may be deployed singly clamped to a wire or in groups of up to 48 on a rosette. Standard bottles have a capacity between 1.7 and 30 L, while Lever Action bottles have a capacity between 1.7 and 12 L. Reversing thermometers may be attached to a spring-loaded disk that rotates through 180° on bottle closure.

Pigments for Charles Darwin and RRS Challenger cruises

Document History

Converted from CDROM documentation.

Content of data series

CPHLFLP1 Fluorometric chlorophyll-a
Fluorometric assay of acetone extract (GF/F filtered)
Milligrams/cubic metre
CPHLFLP4 Fluorometric chlorophyll-a
Fluorometric assay of acetone extraction (sum of size fractions >0.2 microns)
Milligrams/cubic metre
CPHLPR01 CTD chlorophyll
Calibrated in-situ fluorometer
Milligrams/cubic metre
PHAEFLP1 Fluorometric phaeopigments
Fluorometric assay of acetone extract (GF/F filtered)
Milligrams/cubic metre
SCHLFLPF Size-fractionated fluorometric chlorophyll-a
Fluorometric assay of an acetone extract (0.2-2µm size fraction)
Milligrams/cubic metre
SCHLFLPG Size-fractionated fluorometric chlorophyll-a
Fluorometric assay of an acetone extract (2-20µm size fraction)
Milligrams/cubic metre
SCHLFLPQ Size-fractionated fluorometric chlorophyll-a
Fluorometric assay of an acetone extract (>20µm size fraction)
Milligrams/cubic metre

Data Originator

Dr Ken Jones, CCMS Dunstaffnage Marine Laboratory, UK.

Sampling strategy and methodology

Charles Darwin cruises CD91B, CD93A and CD93B and RRS Challenger cruises CH121A, CH121B, CH121C, CH123A, CH123B, CH125A, CH125B, CH126A, CH126B, CH128A and CH128B.

Samples were collected from either the non-toxic surface sea water supply or from Niskin bottles fitted to the CTD rosette. They were taken in Nalgene bottles, rinsed twice with sample water prior to filling.

The samples were vacuum filtered through 2.5 cm GF/F filters. The volume of water filtered varied depending on the particulate load in the sample. The filters were folded and immediately frozen.

Back in the laboratory, the filters were extracted into 8 ml of 90% neutralised acetone and stored for between 18 and 36 hours in a refrigerator. The extracts were centrifuged at 3000 rpm for two 5-minute bursts.

The resulting chlorophyll solutions were assayed on a bench fluorometer. Three drops of 8% HCl were added and the assay was repeated. Chlorophyll-a and phaeopigment concentrations were determined from the two fluorometer readings using the equations in Tett and Grantham (1978).

References

Tett P. and Grantham B. 1978. A simple guide to the measurement and interpretation of chlorophyll concentration, temperature and salinity, in coastal waters. SMBA. 85pp.


Project Information

LOIS Shelf Edge Study (LOIS - SES)

Introduction

SES was a component of the NERC Land Ocean Interaction Study (LOIS) Community Research Programme that made intensive measurements from the shelf break in the region known as the Hebridean Slope from March 1995 to September 1996.

Scientific Rationale

SES was devoted to the study of interactions between the shelf seas and the open ocean. The specific objectives of the project were:

Fieldwork

The SES fieldwork was focussed on a box enclosing two sections across the shelf break at 56.4-56.5 °N and 56.6-56.7 °N. Moored instrument arrays were maintained throughout the experiment at stations with water depths ranging from 140 m to 1500 m, although there were heavy losses due to the intensive fishing activity in the area. The moorings included meteorological buoys, current meters, transmissometers, fluorometers, nutrient analysers (but these never returned any usable data), thermistor chains, colour sensors and sediment traps.

The moorings were serviced by research cruises at approximately three-monthly intervals. In addition to the mooring work this cruises undertook intensive CTD, water bottle and benthic surveys with cruise durations of up to 6 weeks (3 legs of approximately 2 weeks each).

Moored instrument activities associated with SES comprised current measurements in the North Channel in 1993 and the Tiree Passage from 1995-1996. These provided boundary conditions for SES modelling activities.

Additional data were provided through cruises undertaken by the Defence Evaluation and Research Agency (DERA) in a co-operative programme known as SESAME.


Data Activity or Cruise Information

Data Activity

Start Date (yyyy-mm-dd) 1996-02-22
End Date (yyyy-mm-dd) 1996-02-22
Organization Undertaking ActivityUniversity of Wales, Bangor School of Ocean Sciences (now Bangor University School of Ocean Sciences)
Country of OrganizationUnited Kingdom
Originator's Data Activity IdentifierCH125B_CTD_CP105
Platform Categorylowered unmanned submersible

BODC Sample Metadata Report for CH125B_CTD_CP105

Sample reference number Nominal collection volume(l) Bottle rosette position Bottle firing sequence number Minimum pressure sampled (dbar) Maximum pressure sampled (dbar) Depth of sampling point (m) Bottle type Sample quality flag Bottle reference Comments
80399   10.00      300.00  302.60  294.40 Niskin bottle No problem reported    
80401   10.00       64.40   66.40   60.80 Niskin bottle No problem reported    
80402   10.00       36.30   38.40   33.00 Niskin bottle No problem reported    
80821   10.00       21.40   24.20   18.60 Niskin bottle No problem reported    
80822   10.00        8.70   10.90    5.70 Niskin bottle No problem reported    
81351   10.00      105.00  109.60  102.30 Niskin bottle No problem reported    

Please note:the supplied parameters may not have been sampled from all the bottle firings described in the table above. Cross-match the Sample Reference Number above against the SAMPRFNM value in the data file to identify the relevant metadata.

Related Data Activity activities are detailed in Appendix 1

Cruise

Cruise Name CH125B
Departure Date 1996-02-13
Arrival Date 1996-03-03
Principal Scientist(s)A Edward Hill (University of Wales, Bangor School of Ocean Sciences)
Ship RRS Challenger

Complete Cruise Metadata Report is available here


Fixed Station Information

Fixed Station Information

Station NameLOIS (SES) Repeat Section R
CategoryOffshore route/traverse

LOIS (SES) Repeat Section R

Section R was one of four repeat sections sampled during the Land-Ocean Interaction Study (LOIS) Shelf Edge Study (SES) project between March 1995 and September 1996.

The CTD measurements collected at repeat section R, on the Hebridean Slope, lie within a box bounded by co-ordinates 56° 29.4' N, 9° 41.4' W at the southwest corner and 56° 32.4' N, 8° 55.8' W at the northeast corner.

Cruises occupying section R

Cruise Start Date End Date
Charles Darwin 91B 22/03/1995 02/04/1995
Charles Darwin 93A 07/05/1995 16/05/1995
Charles Darwin 93B 16/05/1995 30/05/1995
Tydeman SESAME-1 10/08/1995 11/09/1995
Challenger 121B 18/08/1995 01/09/1995
Challenger 121C 01/09/1995 10/09/1995
Challenger 123A 15/11/1995 29/11/1995
Challenger 123B 01/12/1995 15/12/1995
Challenger 124 08/01/1996 27/01/1996
Challenger 125A 31/01/1996 12/02/1996
Challenger 125B 13/02/1996 03/03/1996
Challenger 126B 27/04/1996 12/05/1996
Challenger 128A 10/07/1996 26/07/1996
Challenger 128B 26/07/1996 08/08/1996

Related Fixed Station activities are detailed in Appendix 2


BODC Quality Control Flags

The following single character qualifying flags may be associated with one or more individual parameters with a data cycle:

Flag Description
Blank Unqualified
< Below detection limit
> In excess of quoted value
A Taxonomic flag for affinis (aff.)
B Beginning of CTD Down/Up Cast
C Taxonomic flag for confer (cf.)
D Thermometric depth
E End of CTD Down/Up Cast
G Non-taxonomic biological characteristic uncertainty
H Extrapolated value
I Taxonomic flag for single species (sp.)
K Improbable value - unknown quality control source
L Improbable value - originator's quality control
M Improbable value - BODC quality control
N Null value
O Improbable value - user quality control
P Trace/calm
Q Indeterminate
R Replacement value
S Estimated value
T Interpolated value
U Uncalibrated
W Control value
X Excessive difference

SeaDataNet Quality Control Flags

The following single character qualifying flags may be associated with one or more individual parameters with a data cycle:

Flag Description
0 no quality control
1 good value
2 probably good value
3 probably bad value
4 bad value
5 changed value
6 value below detection
7 value in excess
8 interpolated value
9 missing value
A value phenomenon uncertain
Q value below limit of quantification

Appendix 1: CH125B_CTD_CP105

Related series for this Data Activity are presented in the table below. Further information can be found by following the appropriate links.

If you are interested in these series, please be aware we offer a multiple file download service. Should your credentials be insufficient for automatic download, the service also offers a referral to our Enquiries Officer who may be able to negotiate access.

Series IdentifierData CategoryStart date/timeStart positionCruise
1289600Water sample data1996-02-22 07:34:0056.50639 N, 9.06092 WRRS Challenger CH125B
1866908Water sample data1996-02-22 07:34:0056.50639 N, 9.06092 WRRS Challenger CH125B

Appendix 2: LOIS (SES) Repeat Section R

Related series for this Fixed Station are presented in the table below. Further information can be found by following the appropriate links.

If you are interested in these series, please be aware we offer a multiple file download service. Should your credentials be insufficient for automatic download, the service also offers a referral to our Enquiries Officer who may be able to negotiate access.

Series IdentifierData CategoryStart date/timeStart positionCruise
847974CTD or STD cast1995-03-28 13:02:0056.49 N, 9.01017 WRRS Charles Darwin CD91B
852859CTD or STD cast1995-05-11 20:39:0056.51883 N, 9.2855 WRRS Charles Darwin CD93A
849213CTD or STD cast1995-05-20 08:35:0056.50067 N, 8.93217 WRRS Charles Darwin CD93B
848639CTD or STD cast1995-05-20 09:53:0056.50367 N, 8.99083 WRRS Charles Darwin CD93B
848640CTD or STD cast1995-05-20 11:09:0056.506 N, 9.04 WRRS Charles Darwin CD93B
849225CTD or STD cast1995-05-20 13:02:0056.505 N, 9.05933 WRRS Charles Darwin CD93B
848652CTD or STD cast1995-05-20 14:40:0056.50783 N, 9.10683 WRRS Charles Darwin CD93B
848664CTD or STD cast1995-05-20 15:58:0056.51533 N, 9.17183 WRRS Charles Darwin CD93B
849237CTD or STD cast1995-05-20 17:12:0056.51317 N, 9.232 WRRS Charles Darwin CD93B
848676CTD or STD cast1995-05-20 18:38:0056.516 N, 9.296 WRRS Charles Darwin CD93B
848688CTD or STD cast1995-05-20 20:54:0056.53067 N, 9.48833 WRRS Charles Darwin CD93B
849249CTD or STD cast1995-05-20 23:04:0056.538 N, 9.6765 WRRS Charles Darwin CD93B
848793CTD or STD cast1995-05-21 23:56:0056.51983 N, 9.285 WRRS Charles Darwin CD93B
849286CTD or STD cast1995-05-22 02:23:0056.51567 N, 9.28983 WRRS Charles Darwin CD93B
848800CTD or STD cast1995-05-22 04:04:0056.51633 N, 9.2895 WRRS Charles Darwin CD93B
848812CTD or STD cast1995-05-22 06:11:0056.51767 N, 9.29733 WRRS Charles Darwin CD93B
849342CTD or STD cast1995-05-22 08:44:0056.51733 N, 9.2925 WRRS Charles Darwin CD93B
848824CTD or STD cast1995-05-22 10:35:0056.51917 N, 9.29067 WRRS Charles Darwin CD93B
851217CTD or STD cast1995-08-22 14:52:0056.50667 N, 9.05967 WRRS Challenger CH121B
1287421Water sample data1995-08-22 15:07:0056.5066 N, 9.05972 WRRS Challenger CH121B
852128CTD or STD cast1995-09-03 20:42:0056.49917 N, 8.93417 WRRS Challenger CH121C
851936CTD or STD cast1995-09-03 21:40:0056.50483 N, 9.03733 WRRS Challenger CH121C
851948CTD or STD cast1995-09-03 22:18:0056.50583 N, 9.06167 WRRS Challenger CH121C
851961CTD or STD cast1995-09-03 23:13:0056.50967 N, 9.11833 WRRS Challenger CH121C
852141CTD or STD cast1995-09-04 00:07:0056.51517 N, 9.18467 WRRS Challenger CH121C
851973CTD or STD cast1995-09-04 01:21:0056.51867 N, 9.30033 WRRS Challenger CH121C
851997CTD or STD cast1995-09-04 20:42:0056.519 N, 9.29967 WRRS Challenger CH121C
854830CTD or STD cast1995-11-27 01:51:0056.51767 N, 9.2985 WRRS Challenger CH123A
855685CTD or STD cast1995-12-07 05:34:0056.52767 N, 9.288 WRRS Challenger CH123B
855697CTD or STD cast1995-12-07 07:23:0056.51767 N, 9.28667 WRRS Challenger CH123B
855765CTD or STD cast1995-12-07 14:26:0056.51717 N, 9.29483 WRRS Challenger CH123B
855704CTD or STD cast1995-12-07 15:19:0056.51767 N, 9.177 WRRS Challenger CH123B
855894CTD or STD cast1995-12-07 17:16:0056.52783 N, 9.10217 WRRS Challenger CH123B
854946CTD or STD cast1995-12-07 18:31:0056.51017 N, 9.05117 WRRS Challenger CH123B
855716CTD or STD cast1995-12-07 19:21:0056.50633 N, 9.03967 WRRS Challenger CH123B
855728CTD or STD cast1995-12-07 20:25:0056.5045 N, 8.93233 WRRS Challenger CH123B
855114CTD or STD cast1995-12-10 22:03:0056.53 N, 9.66833 WRRS Challenger CH123B
855925CTD or STD cast1995-12-11 16:28:0056.51483 N, 9.296 WRRS Challenger CH123B
855126CTD or STD cast1995-12-11 17:59:0056.51533 N, 9.29383 WRRS Challenger CH123B
855882CTD or STD cast1995-12-11 19:17:0056.51583 N, 9.29567 WRRS Challenger CH123B
855507CTD or STD cast1995-12-11 21:06:0056.5145 N, 9.304 WRRS Challenger CH123B
856431CTD or STD cast1996-02-05 21:05:0056.501 N, 8.9325 WRRS Challenger CH125A
856105CTD or STD cast1996-02-05 21:50:0056.5035 N, 8.98833 WRRS Challenger CH125A
856117CTD or STD cast1996-02-05 22:34:0056.50583 N, 9.041 WRRS Challenger CH125A
856418CTD or STD cast1996-02-07 03:28:0056.51633 N, 9.30083 WRRS Challenger CH125A
856130CTD or STD cast1996-02-07 05:11:0056.51833 N, 9.1805 WRRS Challenger CH125A
856142CTD or STD cast1996-02-07 06:22:0056.5125 N, 9.11367 WRRS Challenger CH125A
856399CTD or STD cast1996-02-07 07:12:0056.50283 N, 9.0575 WRRS Challenger CH125A
857852CTD or STD cast1996-02-22 05:28:0056.49983 N, 8.92683 WRRS Challenger CH125B
1289581Water sample data1996-02-22 05:39:0056.49986 N, 8.92676 WRRS Challenger CH125B
1699242Water sample data1996-02-22 05:39:0056.49986 N, 8.92676 WRRS Challenger CH125B
1866889Water sample data1996-02-22 05:39:0056.49986 N, 8.92676 WRRS Challenger CH125B
856953CTD or STD cast1996-02-22 06:42:0056.50333 N, 9.042 WRRS Challenger CH125B
1289593Water sample data1996-02-22 06:56:0056.50341 N, 9.04199 WRRS Challenger CH125B
1699254Water sample data1996-02-22 06:56:0056.50341 N, 9.04199 WRRS Challenger CH125B
1866890Water sample data1996-02-22 06:56:0056.50341 N, 9.04199 WRRS Challenger CH125B
857784CTD or STD cast1996-02-22 07:23:0056.50633 N, 9.061 WRRS Challenger CH125B
1289600Water sample data1996-02-22 07:34:0056.50639 N, 9.06092 WRRS Challenger CH125B
1866908Water sample data1996-02-22 07:34:0056.50639 N, 9.06092 WRRS Challenger CH125B
856965CTD or STD cast1996-02-22 08:18:0056.512 N, 9.1215 WRRS Challenger CH125B
1289612Water sample data1996-02-22 08:33:0056.51203 N, 9.12148 WRRS Challenger CH125B
1699278Water sample data1996-02-22 08:33:0056.51203 N, 9.12148 WRRS Challenger CH125B
1866921Water sample data1996-02-22 08:33:0056.51203 N, 9.12148 WRRS Challenger CH125B
856977CTD or STD cast1996-02-22 11:30:0056.51483 N, 9.181 WRRS Challenger CH125B
1289624Water sample data1996-02-22 11:49:0056.51491 N, 9.18092 WRRS Challenger CH125B
1699291Water sample data1996-02-22 11:49:0056.51491 N, 9.18092 WRRS Challenger CH125B
1866933Water sample data1996-02-22 11:49:0056.51491 N, 9.18092 WRRS Challenger CH125B
857502CTD or STD cast1996-02-22 13:27:0056.5165 N, 9.302 WRRS Challenger CH125B
1289636Water sample data1996-02-22 13:58:0056.51646 N, 9.30205 WRRS Challenger CH125B
1699309Water sample data1996-02-22 13:58:0056.51646 N, 9.30205 WRRS Challenger CH125B
1866945Water sample data1996-02-22 13:58:0056.51646 N, 9.30205 WRRS Challenger CH125B
858505CTD or STD cast1996-05-04 14:18:0056.5325 N, 9.69267 WRRS Challenger CH126B
859926CTD or STD cast1996-05-04 16:34:0056.52633 N, 9.49333 WRRS Challenger CH126B
859938CTD or STD cast1996-05-04 19:00:0056.5165 N, 9.296 WRRS Challenger CH126B
859951CTD or STD cast1996-05-04 20:29:0056.51683 N, 9.24267 WRRS Challenger CH126B
858517CTD or STD cast1996-05-04 22:10:0056.515 N, 9.184 WRRS Challenger CH126B
859963CTD or STD cast1996-05-04 23:38:0056.51133 N, 9.11667 WRRS Challenger CH126B
859361CTD or STD cast1996-05-05 00:45:0056.50767 N, 9.06683 WRRS Challenger CH126B
859373CTD or STD cast1996-05-05 01:33:0056.50383 N, 9.04017 WRRS Challenger CH126B
859385CTD or STD cast1996-05-05 02:19:0056.50483 N, 8.991 WRRS Challenger CH126B
859397CTD or STD cast1996-05-05 03:09:0056.50133 N, 8.93333 WRRS Challenger CH126B
859570CTD or STD cast1996-05-07 03:34:0056.518 N, 9.29967 WRRS Challenger CH126B
859582CTD or STD cast1996-05-07 05:02:0056.52 N, 9.29967 WRRS Challenger CH126B
858799CTD or STD cast1996-05-07 10:48:0056.51283 N, 9.2975 WRRS Challenger CH126B
860595CTD or STD cast1996-07-11 22:37:0056.50183 N, 8.933 WRRS Challenger CH128A
1292460Water sample data1996-07-11 22:42:0056.50187 N, 8.93308 WRRS Challenger CH128A
860177CTD or STD cast1996-07-11 23:32:0056.50617 N, 9.04617 WRRS Challenger CH128A
1292552Water sample data1996-07-11 23:50:0056.50611 N, 9.0461 WRRS Challenger CH128A
861027CTD or STD cast1996-07-12 00:25:0056.50767 N, 9.0615 WRRS Challenger CH128A
1292668Water sample data1996-07-12 00:45:0056.50771 N, 9.06142 WRRS Challenger CH128A
860602CTD or STD cast1996-07-12 01:44:0056.512 N, 9.1135 WRRS Challenger CH128A
1292712Water sample data1996-07-12 02:00:0056.512 N, 9.11353 WRRS Challenger CH128A
860189CTD or STD cast1996-07-12 03:24:0056.5185 N, 9.29167 WRRS Challenger CH128A
1292030Water sample data1996-07-12 03:56:0056.51842 N, 9.29173 WRRS Challenger CH128A
861297CTD or STD cast1996-07-28 18:33:0056.51783 N, 9.3045 WRRS Challenger CH128B
861156CTD or STD cast1996-07-28 22:46:0056.51817 N, 9.30833 WRRS Challenger CH128B
861304CTD or STD cast1996-07-29 00:29:0056.52517 N, 9.3195 WRRS Challenger CH128B