Metadata Report for BODC Series Reference Number 1716530

• Metadata Summary

• Problem Reports

• Data Access Policy

• Narrative Documents

• Project Information

• Data Activity or Cruise Information

• Fixed Station Information

• BODC Quality Flags

Metadata Summary

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

Agilent 6890 networked gas chromatograph

A networked gas chromatograph that separates and analyses gas mixtures in water or air. The instrument includes a dual channel design supporting two inlets and two detectors. An automatic liquid sampling system is fully integrated into the mainframe control and atmospheric pressure and temperature compensation is standard. The instrument also supports 6 column oven ramps with 7 plateaus.

The 6890N is completely customisable depending on the application, with choices of inlets, columns, detectors and sampling systems. Available detectors include; flame ionization, thermal conductivity, micro-electron capture, nitrogen-phosphorus, single- or dual-wavelength flame photometric. Specialised detectors include: atomic emission, Helium ionization, sulphur chemiluminescence and pulsed discharge ionization. All detectors include electronic pneumatics control and electronic on/off for all detector gases. Carrier and makeup gas settings are selectable for He, H2, N2, and argon/methane. There is a choice of inlets including; packed purged injection port, split/splitless capillary inlet, temperature-programmable cool on-column, programmable temperature vaporizer and volatiles inlet. A full array of gas sampling and column switching valves are also available. The instrument has a 7683 ALS interface and incorporates local area network technology as standard.

The Agilent 6890N uses many of the same components as the Agilent 6850N GC producing virtually identical results, but the Agilent 6850N is only half as wide. The Agilent 6890N replaces the HP Agilent 5890 and is no longer in production.

Please see the Agilent 6890N brochure and data sheet for further details.

Instrument Description

Vertical Microstructure Profiler and support sensors

Please see the cruise report for further details of the instrumentation performance and recommendations.

Rockland Scientific FP07-38 microstructure thermistor

A fast-response temperature sensor measuring microstructure temperature fluctuations for oceanographic applications. The sensing tip is a microbead thermistor (manufactured by GE Thermometics), mounted on a 9.525 mm diameter stainless steel sting which can be attached to ocean microstructure instruments. The instrument consists of small diameter glass-coated thermistor bead, thermetically sealed onto the tip of a shock-resistant glass rod.

Specifications

Rockland Scientific SPM-38 velocity shear probe

A velocity shear probe measuring microstructure velocity fluctuations in oceans and lakes. The instrument measures a single spatial component of turbulent velocity fluctuations, in a direction perpendicular to the probes main axis. The sensing head is based upon the design by Osborn (1974) and the sensing element consists of a parabolic, flexible rubber tip. The oncoming flow produces a hydrodynamic lift force proportional to the fluctuating cross-stream velocity component u. A piezo-ceramic beam embedded in the rubber tip translates the lift force into an electric signal that is proportional to u. The length of the sensing tip (10 mm) determines the maximum wavenumber resolution of the sensor which is approximately 48 cycles per meter. The measurements can be corrected to include wavenumbers up to 150 cpm.

Specifications

References cited

Osborn, T.R., 1974. Vertical profiling of velocity microstructure. Journal of Physical Oceanography, 4, 109-115.

Sea-Bird Electronics SBE 911 and SBE 917 series CTD profilers

The SBE 911 and SBE 917 series of conductivity-temperature-depth (CTD) units are used to collect hydrographic profiles, including temperature, conductivity and pressure as standard. Each profiler consists of an underwater unit and deck unit or SEARAM. Auxiliary sensors, such as fluorometers, dissolved oxygen sensors and transmissometers, and carousel water samplers are commonly added to the underwater unit.

Underwater unit

The CTD underwater unit (SBE 9 or SBE 9 plus) comprises a protective cage (usually with a carousel water sampler), including a main pressure housing containing power supplies, acquisition electronics, telemetry circuitry, and a suite of modular sensors. The original SBE 9 incorporated Sea-Bird's standard modular SBE 3 temperature sensor and SBE 4 conductivity sensor, and a Paroscientific Digiquartz pressure sensor. The conductivity cell was connected to a pump-fed plastic tubing circuit that could include auxiliary sensors. Each SBE 9 unit was custom built to individual specification. The SBE 9 was replaced in 1997 by an off-the-shelf version, termed the SBE 9 plus, that incorporated the SBE 3 plus (or SBE 3P) temperature sensor, SBE 4C conductivity sensor and a Paroscientific Digiquartz pressure sensor. Sensors could be connected to a pump-fed plastic tubing circuit or stand-alone.

Temperature, conductivity and pressure sensors

The conductivity, temperature, and pressure sensors supplied with Sea-Bird CTD systems have outputs in the form of variable frequencies, which are measured using high-speed parallel counters. The resulting count totals are converted to numeric representations of the original frequencies, which bear a direct relationship to temperature, conductivity or pressure. Sampling frequencies for these sensors are typically set at 24 Hz.

The temperature sensing element is a glass-coated thermistor bead, pressure-protected inside a stainless steel tube, while the conductivity sensing element is a cylindrical, flow-through, borosilicate glass cell with three internal platinum electrodes. Thermistor resistance or conductivity cell resistance, respectively, is the controlling element in an optimized Wien Bridge oscillator circuit, which produces a frequency output that can be converted to a temperature or conductivity reading. These sensors are available with depth ratings of 6800 m (aluminium housing) or 10500 m (titanium housing). The Paroscientific Digiquartz pressure sensor comprises a quartz crystal resonator that responds to pressure-induced stress, and temperature is measured for thermal compensation of the calculated pressure.

Additional sensors

Optional sensors for dissolved oxygen, pH, light transmission, fluorescence and others do not require the very high levels of resolution needed in the primary CTD channels, nor do these sensors generally offer variable frequency outputs. Accordingly, signals from the auxiliary sensors are acquired using a conventional voltage-input multiplexed A/D converter (optional). Some Sea-Bird CTDs use a strain gauge pressure sensor (Senso-Metrics) in which case their pressure output data is in the same form as that from the auxiliary sensors as described above.

Deck unit or SEARAM

Each underwater unit is connected to a power supply and data logging system: the SBE 11 (or SBE 11 plus) deck unit allows real-time interfacing between the deck and the underwater unit via a conductive wire, while the submersible SBE 17 (or SBE 17 plus) SEARAM plugs directly into the underwater unit and data are downloaded on recovery of the CTD. The combination of SBE 9 and SBE 17 or SBE 11 are termed SBE 917 or SBE 911, respectively, while the combinations of SBE 9 plus and SBE 17 plus or SBE 11 plus are termed SBE 917 plus or SBE 911 plus.

Specifications

Specifications for the SBE 9 plus underwater unit are listed below:

Further details can be found in the manufacturer's specification sheet.

Sea-Bird SBE 3F temperature sensor

Water temperature sensor primarily designed for use on the SBE 25 and 25plus Sealogger CTD systems but can be used as a component in custom oceanographic profiling systems or high-accuracy temperature-monitoring applications. The sensor operates over the range -5 to +35 °C and has an initial accuracy of +/-0.001°C. The sensor has a depth rating of 6800 m (aluminum housing) or 10500 m (titanium housing). The SBE 3F is an enhanced version of the SBE 3 temperature sensor.

Please see the SBE 3F specification sheet for further details.

Sea-Bird SBE 7 microstructure conductivity sensor

Microstructure conductivity sensor designed for use on marine profiling applications to characterise small scale ocean conductivity features. The sensor is primarily used for the determination of conductivity gradients but it is configured to respond to absolute conductivity as well. The SBE 7 has an accuracy typically within 0.005 S m^-1 over periods of several hours and has a high speed micro-scale resolution of 3 dbar at 100 cycles m -1 (-3 dbar at 1000 Hz). The sensor has aluminium housing and a depth rating of 6800 m.

Please see the SBE 7 specification sheet for further details.

BODC Processing

Thirty three profiles were provided by the originator in a structured Matlab format and converted into BODC internal format using standard BODC processing procedures. The following table shows how the variables within the Matlab file were mapped to appropriate BODC parameter codes:

The reformatted data were visualised using the in-house EDSERPLO software. The data were screened and quality control flags were applied to data as necessary.

Originator's Data Processing

Sampling Strategy

Thirty three Vertical Microstructure Profiler (VMP) deployments were carried out successfully. Weather conditions and the presence of ice severely restricted deployments during the SR1 section and Orkney Passage. Additional VMPs were deployed at other sections instead.

Data processing

Instrument calibrations for the VMP CTD were applied and corrections for the fact the unit was not pumped, but no external calibration either to the ship CTD or water samples were made.

A matlab routine (finestructure_processing_routine.m) was used to process the seabird finestructure. The temperature and salinity data from the CTD sensors were processed as follows:

1. Near-surface data below 10 dbar were removed to eliminate the noisy data at the near surface from influencing further processing.
2. Conductivity, temperature and pressure data were then adjusted to account for the spatial displacement between the pressure sensor (at the VMP nose) and the CTD sensors (on the VMP body).
3. The temperature, conductivity and pressure were despiked.
4. The short-term mismatch between temperature and conductivity signals due to dissimilar sensor responses and the long-time mismatch between temperature and conductivity signals due to the thermal inertia of the conductivity cell were corrected.
5. The effects of conductivity cell thermal expansion and pressure contraction were corrected.
6. Low pass filters then corrected pressure, temperature, conductivity and salinity profiles to eliminate high frequency noise.
7. Temperature, conductivity and salinity profiles were averaged in pressure bins of 0.5 dbar.

Another matlab routine (vmp_process_micro.m) was then used to convert the data to real units and to calibrate the seabird data. The epsilon and chi values are estimated by integrating the power spectra of the shear and the microtemperature gradient, respectively. The data were averaged into regular 0.5 dbar bins.

Lastly the data were averaged into 1 dbar bins and saved as a matlab structure file using a Matlab program. The average results from the two shear or microtemperature probes were used, unless a probe was noisy, in which case the noisy probe data was discarded.

Rockland Scientific Vertical Microstructure Profiler VMP 5500

A full ocean-depth untethered vertical microstructure turbulence profiler for the measurement of dissipation-scale turbulence along with temperature and conductivity for up to 5500 m depth. The instrument is fitted with pressure, temperature (SBE-3F) and conductivity (SBE-4C) sensors, three acceleration sensors, a PC104 computer data acquisition and communication system, anti-aliasing filters and a standard suite of microstructure sensors which includes two SPM-38-5 velocity shear probes, two FP07-38-5 fast thermistors and an optional microstructure conductivity probe (SBE7).

All microstructure sensors are held in the nose cone and can be exchanged or replaced in the field, without the need of disassemble the main pressure case of the VMP which can hold up to 6 microstructure probes in any combination. The main pressure case contains the pressure transducer as well as the accelerometers, electronics for signal conditioning A/D conversion and data logging, and is separated from the nose cone by a 38 mm thick bulkhead which prevents water penetration into the main pressure case.

The instrument has an aluminium frame with syntactic foam attached for floatation. Data are collected on the downcast and after reaching a pre-defined depth the profiler releases ballast weights so that the instrument becomes positively buoyant. The instrument rises to the surface with a nominal speed of 1.0 ms^-1. As a backup, there is a triple-redundancy emergency ballast release consisting of a corrosion trigger, time-out trigger and pressure rate-of-change trigger. The VMP 5500 has a strobe light and a radio beacon and can also be fitted with an Argos transmitter for locating the instrument after it has returned to the surface. The VMP 5500 was replaced by the VMP 6000 in 2010.

Please see the VMP 5500 specification sheet for further details.

Project Information

Diapycnal and Isopycnal Mixing Experiment in the Southern Ocean (DIMES) project document

DIMES is a US/UK field program aimed at measuring diapycnal and isopycnal mixing in the Southern Ocean, along the tilting isopycnals of the Antarctic Circumpolar Current.

The Meridional Overturning Circulation (MOC) of the ocean is a critical regulator of the Earth's climate processes. Climate models are highly sensitive to the representation of mixing processes in the southern limb of the MOC, within the Southern Ocean, although the lack of extensive in situ observations of Southern Ocean mixing processes has made evaluation of mixing somewhat difficult. Theories and models of the Southern Ocean circulation have been built on the premise of adiabatic flow in the ocean interior, with diabatic processes confined to the upper-ocean mixed layer. Interior diapycnal mixing has often been assumed to be small, but a few recent studies have suggested that diapycnal mixing might be large in some locations, particularly over rough bathymetry. Depending on its extent, this interior diapycnal mixing could significantly affect the overall energetics and property balances for the Southern Ocean and in turn for the global ocean. The goals of DIMES are to obtain measurements that will help us quantify both along-isopycnal eddy-driven mixing and cross-isopycnal interior mixing.

DIMES includes tracer release, isopycnal following RAFOS floats, microstructure measurements, shearmeter floats, EM-APEX floats, a mooring array in Drake Passage, hydrographic observations, inverse modeling, and analysis of altimetry and numerical model output.

DIMES is sponsored by the National Science Foundation (U.S.), Natural Environment Research Council (U.K) and British Antarctic Survey (U.K.)

For more information please see the official project website at DIMES

Data Activity or Cruise Information

Cruise

Complete Cruise Metadata Report is available here

Fixed Station Information

Fixed Station Information

World Ocean Circulation Experiment (WOCE) Southern Repeat Section 1B - Falkland Islands to Elephant Island

WOCE Southern Repeat Section 1B is a section across Drake Passage in the South Atlantic Ocean. The nominal end points of the section (to date) are at 52° 55.74' S, 58° 00.00' W (at the south of the Falkland Islands) and 61° 03.05' S, 54° 33.10' W (off Elephant Island at the north end of the Antarctic Peninsula).

The section was first occupied by the R/V Polarstern in 1992 (Gersonde, 1993). The first UK occupation of SR1b followed on RRS Discovery later the same year. The National Oceanography Centre, Southampton (formerly known as Southampton Oceanography Centre), in collaboration with the British Antarctic Survey, have occupied the section most years since 1993 on the RRS James Clark Ross. Additionally, there were three Spanish occupations on R/V Hespérides in February 1995, 1996 and 1998 (Garcia et al., 2002). A Drake Passage summary report for RRS James Clark Ross cruises between 1993 - 2000 has been produced.

A table of cruises which occupied SR1b is presented below with links to the relevant cruise reports (were available).

References

García, M. A., I. Bladé, A. Cruzado, Z. Velásquez, H. García, J. Puigdefàbregas and J. Sospedra, 2002: Observed variability of water properties and transports on the World Ocean Circulation Experiment SR1b section across the Antarctic Circumpolar Current. J. Geophys. Res. 107 (C10) 3162, 10.1029/2000JC000277.

Gersonde, R., 1993: The Expedition Antarktis X/5 of RV Polarstern in 1992. Berichte zur Polarforschung, 131, 167 pp.

Other Series linked to this Fixed Station for this cruise - 1716542 1716554 1716566 1716578 1716591 1716609 1716610 1716622 1716634 1716646 1716658 1716671 1716683 1716695 1716702 1716714 1716726 1716738 1716751 1716763 1716775 1716787 1716799 1716806 1716818 1716831 1716843 1716855 1716867 1716879 1716880 1716892 1736395 1736402 1736414 1736426 1736438 1736451 1736463 1736475 1736487 1736499 1736506 1736518 1736531 1736543 1736555 1736567 1736579 1736580 1736592 1736611 1736623 1736635 1736647 1736659 1736660 1736672 1736684 1736696 1736703 1736715 1736727

Other Cruises linked to this Fixed Station (with the number of series) - JC031 (105) JC069 (UKD-3) (18) JR16002 (61) JR19931120 (JR00a) (30) JR19941113 (JR0B) (29) JR19961128 (JR16) (29) JR19971217 (JR27) (54) JR20000113 (JR47) (29) JR20001121 (JR55) (31) JR20021224 (JR81) (32) JR20031211 (JR94) (30) JR20041201 (JR111, JR115) (35) JR20071129 (JR171, JR193, JR196 Leg1, JR212) (32) JR20081212 (JR194, JR197) (30) JR20091118 (JR195, JR198) (33) JR20101205 (JR242) (9) JR20110409 (JR276, UKD-2.5) (43) JR20111127 (JR254D, JR264, JR265) (31) JR20130317 (JR252B, JR272B, JR273A, JR281, UKD-4) (63) JR20140309 (JR293 Leg1, JR299 Leg1, UKD-5) (21) JR20150110 (JR305, JR306) (31)

Fixed Station Information

Drake Passage

The World Ocean Circulation Experiment (WOCE, 1990-1998) was a major international experiment which made measurements and undertook modelling studies of the deep oceans in order to provide a much improved understanding of the role of ocean circulation in changing and ameliorating the Earth's climate.

The Drake Passage is the narrowest constriction of the Antarctic Circumpolar Current (ACC) - the largest current in the world and connects all three major oceanic basins both horizontally and vertically, thus being a key control in the global overturning circulation.Within the Drake Passage, two repeat hydrographic sections (SR1 and SR1b) were established by WOCE. These were designed to extend measurements collected earlier by the International Southern Ocean Studies (ISOS) programme and have continued beyond the WOCE time-frame.

The original section was SR1 (which also covers part of the A21 one time survey track). Subsequently, the section was shifted to the east (and designated SR1b) in order for it to lie on a satellite ground track as illustrated in the image below.

In addition to the hydrographic measurements, UK research in Drake Passage also includes a network of coastal and deep tide gauges, analysis of satellite altimeter data, and state-of-the-art global numerical modeling.

Other Series linked to this Fixed Station for this cruise - 1716542 1716554 1716566 1716578 1716591 1716609 1716610 1716622 1716634 1716646 1716658 1716671 1716683 1716695 1716702 1716714 1716726 1716738 1716751 1716763 1716775 1716787 1716799 1716806 1716818 1716831 1716843 1716855 1716867 1716879 1716880 1716892 1736395 1736402 1736414 1736426 1736438 1736451 1736463 1736475 1736487 1736499 1736506 1736518 1736531 1736543 1736555 1736567 1736579 1736580 1736592 1736611 1736623 1736635 1736647 1736659 1736660 1736672 1736684 1736696 1736703 1736715 1736727 1744070 1744082 1744094 1744101 1744113 1744125 1744137 1744149 1744150 1744162 1744174 1744186 1744198 1744205 1744217 1744229 1744230 1744242 1744254 1744266 1744278 1744291 1744309 1744310 1744322 1744334 1744346 1744358 1744371 1744383 1744395 1744402 1744414 1744426 1744438 1744451 1744463 1744475 1744487 1744499 1744506 1744518 1744531 1744543 1744555 1744567 1744579 1744580 1744592 1744611 1744623 1744635 1744647 1744659 1744660 1744672 1744684 1744696 1744703 1744715 1744727 1744739 1744740 1744752 1744764 1744776 1744788 1744807 1744819 1744820 1744832 1744844 1744856 1744868 1744881 1744893 1744900 1744912 1744924 1744936 1744948 1744961 1744973 1744985 1744997 1745000 1745012 1745024 1745036 1745048 1745061 1745073 1745085 1745097 1745104 1745116 1745128 1745141 1745153 1745165 1745177 1745189 1745190 1745208 1745221 1745233 1745245 1745257 1745269 1745270 1745282

Other Cruises linked to this Fixed Station (with the number of series) - JC031 (247) JC041 (UKD-1) (66) JC054 (UKD-2) (146) JC069 (UKD-3) (24) JR16002 (61) JR19931120 (JR00a) (30) JR19941113 (JR0B) (29) JR19961128 (JR16) (29) JR20000113 (JR47) (29) JR20001121 (JR55) (32) JR20021224 (JR81) (32) JR20031211 (JR94) (30) JR20041201 (JR111, JR115) (35) JR20050124 (JR112, JR113) (5) JR20060216 (JR136, JR137) (1) JR20061206 (JR155, JR163, JR164) (1) JR20071129 (JR171, JR193, JR196 Leg1, JR212) (32) JR20091118 (JR195, JR198) (33) JR20101205 (JR242) (9) JR20110409 (JR276, UKD-2.5) (65) JR20130317 (JR252B, JR272B, JR273A, JR281, UKD-4) (174) JR20140309 (JR293 Leg1, JR299 Leg1, UKD-5) (21) JR20150110 (JR305, JR306) (1) RATS/CTD100 (1) RATS/CTD103 (1) RATS/CTD106 (1) RATS/CTD108 (1) RATS/CTD111 (1) RATS/CTD113 (1) RATS/CTD115 (1) RATS/CTD120 (1) RATS/CTD122 (1) RATS/CTD124 (1) RATS/CTD126 (1) RATS/CTD129 (1) RATS/CTD131 (1) RATS/CTD133 (1) RATS/CTD136 (1) RATS/CTD138 (1) RATS/CTD140 (1) RATS/CTD142 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RATS/CTD277 (1) RATS/CTD281 (1) RATS/CTD283 (1) RATS/CTD285 (1) RATS/CTD287 (1) RATS/CTD289 (1) RATS/CTD291 (1) RATS/CTD293 (1) RATS/CTD295 (1) RATS/CTD297 (1) RATS/CTD301 (1) RATS/CTD305 (1) RATS/CTD307 (1) RATS/CTD309 (1) RATS/CTD311 (1) RATS/CTD313 (1) RATS/CTD315 (1) RATS/CTD317 (1) RATS/CTD319 (1) RATS/CTD321 (1) RATS/CTD323 (1) RATS/CTD325 (1) RATS/CTD327 (1) RATS/CTD329 (1) RATS/CTD331 (1) RATS/CTD335 (1) RATS/CTD337 (1) RATS/CTD341 (1) RATS/CTD343 (1) RATS/CTD345 (1) RATS/CTD347 (1) RATS/CTD351 (1) RATS/CTD353 (1) RATS/CTD355 (1) RATS/CTD357 (1) RATS/CTD361 (1) RATS/CTD363 (1) RATS/CTD365 (1) RATS/CTD373 (1) RATS/CTD375 (1) RATS/CTD377 (1) RATS/CTD379 (1) RATS/CTD381 (1) RATS/CTD383 (1) RATS/CTD385 (1) RATS/CTD387 (1) RATS/CTD389 (1) RATS/CTD395 (1) RATS/CTD397 (1) RATS/CTD399 (1) RATS/CTD401 (1) RATS/CTD403 (1) RATS/CTD405 (1) RATS/CTD407 (1) RATS/CTD409 (1) RATS/CTD411 (1) RATS/CTD415 (1) RATS/CTD417 (1) RATS/CTD419 (1) RATS/CTD423 (1) RATS/CTD425 (1) RATS/CTD427 (1) RATS/CTD429 (1) RATS/CTD43 (1) RATS/CTD431 (1) RATS/CTD433 (1) RATS/CTD437 (1) RATS/CTD439 (1) RATS/CTD443 (1) RATS/CTD445 (1) RATS/CTD461 (1) RATS/CTD463 (1) RATS/CTD465 (1) RATS/CTD467 (1) RATS/CTD469 (1) RATS/CTD471 (1) RATS/CTD473 (1) RATS/CTD475 (1) RATS/CTD477 (1) RATS/CTD479 (1) RATS/CTD481 (1) RATS/CTD483 (1) RATS/CTD485 (1) RATS/CTD487 (1) RATS/CTD489 (1) RATS/CTD49 (1) RATS/CTD491 (1) RATS/CTD493 (1) RATS/CTD495 (1) RATS/CTD497 (1) RATS/CTD499 (1) RATS/CTD501 (1) RATS/CTD503 (1) RATS/CTD505 (1) RATS/CTD507 (1) RATS/CTD509 (1) RATS/CTD51 (1) RATS/CTD511 (1) RATS/CTD513 (1) RATS/CTD515 (1) RATS/CTD517 (1) RATS/CTD519 (1) RATS/CTD521 (1) RATS/CTD523 (1) RATS/CTD525 (1) RATS/CTD527 (1) RATS/CTD529 (1) RATS/CTD53 (1) RATS/CTD531 (1) RATS/CTD534 (1) RATS/CTD536 (1) RATS/CTD538 (1) RATS/CTD540 (1) RATS/CTD542 (1) RATS/CTD545 (1) RATS/CTD547 (1) RATS/CTD549 (1) RATS/CTD55 (1) RATS/CTD551 (1) RATS/CTD553 (1) RATS/CTD555 (1) RATS/CTD557 (1) RATS/CTD559 (1) RATS/CTD561 (1) RATS/CTD563 (1) RATS/CTD565 (1) RATS/CTD567 (1) RATS/CTD569 (1) RATS/CTD571 (1) RATS/CTD573 (1) RATS/CTD575 (1) RATS/CTD577 (1) RATS/CTD579 (1) RATS/CTD58 (1) RATS/CTD581 (1) RATS/CTD583 (1) RATS/CTD585 (1) RATS/CTD587 (1) RATS/CTD589 (1) RATS/CTD591 (1) RATS/CTD593 (1) RATS/CTD595 (1) RATS/CTD597 (1) RATS/CTD599 (1) RATS/CTD60 (1) RATS/CTD601 (1) RATS/CTD603 (1) RATS/CTD605 (1) RATS/CTD607 (1) RATS/CTD609 (1) RATS/CTD611 (1) RATS/CTD613 (1) RATS/CTD615 (1) RATS/CTD617 (1) RATS/CTD619 (1) RATS/CTD62 (1) RATS/CTD621 (1) RATS/CTD623 (1) RATS/CTD625 (1) RATS/CTD627 (1) RATS/CTD629 (1) RATS/CTD631 (1) RATS/CTD633 (1) RATS/CTD635 (1) RATS/CTD637 (1) RATS/CTD639 (1) RATS/CTD64 (1) RATS/CTD654 (1) RATS/CTD66 (1) RATS/CTD669 (1) RATS/CTD678 (1) RATS/CTD68 (1) RATS/CTD687 (1) RATS/CTD695 (1) RATS/CTD70 (1) RATS/CTD705 (1) RATS/CTD72 (1) RATS/CTD722 (1) RATS/CTD724 (1) RATS/CTD727 (1) RATS/CTD729 (1) RATS/CTD731 (1) RATS/CTD733 (1) RATS/CTD735 (1) RATS/CTD737 (1) RATS/CTD739 (1) RATS/CTD74 (1) RATS/CTD741 (1) RATS/CTD743 (1) RATS/CTD745 (1) RATS/CTD747 (1) RATS/CTD749 (1) RATS/CTD751 (1) RATS/CTD753 (1) RATS/CTD755 (1) RATS/CTD757 (1) RATS/CTD759 (1) RATS/CTD761 (1) RATS/CTD763 (1) RATS/CTD765 (1) RATS/CTD767 (1) RATS/CTD77 (1) RATS/CTD771 (1) RATS/CTD773 (1) RATS/CTD775 (1) RATS/CTD777 (1) RATS/CTD779 (1) RATS/CTD781 (1) RATS/CTD783 (1) RATS/CTD785 (1) RATS/CTD787 (1) RATS/CTD789 (1) RATS/CTD795 (1) RATS/CTD797 (1) RATS/CTD799 (1) RATS/CTD80 (1) RATS/CTD801 (1) RATS/CTD803 (1) RATS/CTD805 (1) RATS/CTD807 (1) RATS/CTD809 (1) RATS/CTD811 (1) RATS/CTD813 (1) RATS/CTD817 (1) RATS/CTD819 (1) RATS/CTD82 (1) RATS/CTD821 (1) RATS/CTD823 (1) RATS/CTD825 (1) RATS/CTD827 (1) RATS/CTD829 (1) RATS/CTD831 (1) RATS/CTD833 (1) RATS/CTD837 (1) RATS/CTD839 (1) RATS/CTD84 (1) RATS/CTD841 (1) RATS/CTD843 (1) RATS/CTD845 (1) RATS/CTD847 (1) RATS/CTD849 (1) RATS/CTD851 (1) RATS/CTD853 (1) RATS/CTD855 (1) RATS/CTD857 (1) RATS/CTD859 (1) RATS/CTD861 (1) RATS/CTD863 (1) RATS/CTD865 (1) RATS/CTD867 (1) RATS/CTD869 (1) RATS/CTD87 (1) RATS/CTD871 (1) RATS/CTD873 (1) RATS/CTD879 (1) RATS/CTD881 (1) RATS/CTD883 (1) RATS/CTD885 (1) RATS/CTD887 (1) RATS/CTD889 (1) RATS/CTD89 (1) RATS/CTD891 (1) RATS/CTD893 (1) RATS/CTD895 (1) RATS/CTD897 (1) RATS/CTD899 (1) RATS/CTD901 (1) RATS/CTD903 (1) RATS/CTD905 (1) RATS/CTD907 (1) RATS/CTD909 (1) RATS/CTD91 (1) RATS/CTD913 (1) RATS/CTD915 (1) RATS/CTD917 (1) RATS/CTD919 (1) RATS/CTD921 (1) RATS/CTD923 (1) RATS/CTD925 (1) RATS/CTD927 (1) RATS/CTD929 (1) RATS/CTD93 (1) RATS/CTD931 (1) RATS/CTD933 (1) RATS/CTD935 (1) RATS/CTD937 (1) RATS/CTD939 (1) RATS/CTD941 (1) RATS/CTD943 (1) RATS/CTD945 (1) RATS/CTD947 (1) RATS/CTD949 (1) RATS/CTD951 (1) RATS/CTD953 (1) RATS/CTD955 (1) RATS/CTD957 (1) RATS/CTD959 (1) RATS/CTD96 (1) RATS/CTD961 (1) RATS/CTD963 (1) RATS/CTD965 (1) RATS/CTD967 (1) RATS/CTD969 (1) RATS/CTD971 (1) RATS/CTD973 (1) RATS/CTD975 (1) RATS/CTD977 (1) RATS/CTD979 (1) RATS/CTD98 (1) RATS/CTD981 (1) RATS/CTD983 (1) RATS/CTD985 (1) RATS/CTD987 (1) RATS/CTD989 (1) RATS/CTD991 (1)

Fixed Station Information

WOCE Hydrographic Programme Section A23

This section is part of the One-Time Survey of World Ocean Circulation Experiment (WOCE) designated A23. A hydrographic section from Antarctica to Brazil in the South West Atlantica. A full suite of physical, chemical, biological, meterological and tracer measurements were made. During WOCE in 1995 (James Clark Ross, cruise JR10) the A23 section area encompassed 20-70° S and 20-70° S. Part of this A23 section located in the eastern Scotia Sea has been repeated by the ALBATROSS project (James Clark Ross, cruise JR40) in 1999, the US CLIVAR repeat hydrography/CO₂ in 2005 (R/V Ronald H. Brown, cruise A16S_2005a) under the CLIVAR/Carbon repeat hydrography program. From 2010 onwards the British Antarctic Survey has conducted annual cruises to survey the southern portion of this section, from the Weddell Sea to South Georgia. A comprehensive list of cruises is included below the map.

From

History of Occupations at Section A23

Other Series linked to this Fixed Station for this cruise - 1716542 1716554 1716566 1716578 1716591 1716609 1716610 1716622 1716634 1716646 1716658 1716671 1716683 1716695 1716702 1716714 1716726 1716738 1716751 1716763 1716775 1716787 1716799 1716806 1716818 1716831 1716843 1716855 1716867 1716879 1716880 1716892 1736924 1736936 1736948 1736961 1736973 1736985 1736997 1737000 1737012 1737024 1737036 1737048 1737061 1737073 1737085 1737097 1737104 1737116 1737128 1737141 1737153 1737165 1737177 1737189 1737190 1737208

Other Cruises linked to this Fixed Station (with the number of series) - JR15006 (57) JR20100319 (JR235, JR236, JR239) (28) JR20120327 (JR254E, JR257, JR272A) (20) JR20130317 (JR252B, JR272B, JR273A, JR281, UKD-4) (58) JR20140309 (JR293 Leg1, JR299 Leg1, UKD-5) (21)

BODC Quality Control Flags

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

SeaDataNet Quality Control Flags

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