| Contributors | Affiliation | Role |
|---|---|---|
| Fritsen, Chris H. | Desert Research Institute (DRI) | Principal Investigator |
| Allison, Dicky | Woods Hole Oceanographic Institution (WHOI BCO-DMO) | BCO-DMO Data Manager |
| Groman, Robert C. | Woods Hole Oceanographic Institution (WHOI BCO-DMO) | BCO-DMO Data Manager |
These CTD data files were collected on most cruises. The raw and processed data were placed on CD-ROMs, usually in zipped and/or tar'ed form, and provided to the participants and the Data Management Office. The "asc" versions of the files are served, using the information collected from the "hdr" files. These files have been shipboard processed using standard SeaBird software to one decibar averaged intervals.
If a cruise is not represented here, there were no ascii files available to serve (lmg0103, lmg0106), or they have been post-processed and re-served (nbp0103, nbp0104, nbp0202, and nbp0204).
See related datasets: ctd_JK_one_meter and ctd_JK_std_depth
Questions concerning this data set should be directed to:
Bob Groman
Globec Data Management Office
Woods Hole Oceanographic Institution
Woods Hole, MA 02543
Phone: 508 289 2409
E-mail: rgroman@whoi.edu
Last updated February 24, 2006
Sea-Bird CTD Data Files.
These files have been shipboard processed using standard SeaBird software to one decibar averaged intervals.
| File |
|---|
ctd_cruise.csv (Comma Separated Values (.csv), 716.08 MB) MD5:42069a2c56715bd98b028f74c8fb5ba9 Primary data file for dataset ID 2361 |
| Parameter | Description | Units |
| cruiseid | Cruise identification | |
| cast | cast identification (numeric/alpha numeric) | |
| year | year, four digit | YYYY |
| month_utc | month of year | MM |
| day_utc | day of month | DD |
| time_utc | time of day, 24 hour clock | HHmm.m |
| lat | Latitude, negative = South | DD.D |
| lon | Longitude, negative = West | DDD.D |
| station | Station number or description | |
| event | Event number a unique station identifier | |
| operator | Name of CTD operator | |
| scan | Scan count | |
| time_elapsed | Elapsed time | seconds |
| press | Pressure | decibars |
| temp | Water temperature, primary temp sensor, ITS-90 | deg. C |
| cond | Conductivity, primary conductivity sensor | siemens/meter |
| temp2 | Temperature, from secondary sensor. ITS-90 | deg. C |
| cond2 | Conductivity, from secondary sensor | siemens/meter |
| Sbeox0V | Oxygen Voltage, primary sensor SBE 43 | volts |
| Sbeox1V | Oxygen Voltage, secondary sensor SBE 43 | volts |
| wetBTrans | WET Labs, beam transmission | percent |
| V0 | Voltage channel 0 | volts |
| V2 | Voltage channel 2 | volts |
| V4 | Voltage channel 4 | volts |
| V5 | Voltage channel 5 | volts |
| V6 | Voltage channel 6 | volts |
| trans | Beam (light) Transmission, Chelsea/Seatech/Wetlab CStar | percent |
| fluor | Fluorescence, Chelsea Aqua 3 | <i>u</i>g/l |
| Par | PAR/Irradiance, Biospherical/Licor | |
| SPAR | Surface Irradiance (PAR), (downwelled Photosynthetically Available Radiation) | |
| sbe_o2 | dissolved oxygen, SBE 43 unit, calculated from primary sensors, | ml/l |
| sbe_o2_2 | dissolved oxygen, SBE 43 unit, calculated from secondary sensors, | ml/l |
| o2 | dissolved Oxygen | ml/l |
| oxC | Oxygen, current | volts |
| oxT | Oxygen sensor temperature | deg.C |
| O2sat | Oxygen saturation | ml/l |
| oxPS | Oxygen percent saturation | percent |
| potemp | Potential temperature, ITS-90, calculated from primary sensors | deg. C |
| sal | Salinity, calculated from primary temp. and cond. sensors | PSU |
| potemp2 | Potential Temperature, calculated from secondary sensors, ITS-90 | deg. C |
| sal2 | Salinity, calculated from secondary temp. and cond. sensors | PSU |
| sigma_t | Density, calculated from primary temp. and cond. sensors | kg/m<sup>3</sup> |
| sigma_t2 | Density, calculated from secondary temp. and cond. sensors | kg/m<sup>3</sup> |
| sound_vel | Sound Velocity | meters/sec |
| depth | depth of sample/observation | meters |
| Flag | flag | |
| cond_mS | Conductivity of seawater measured in milliSiemans/centimeter by the primary sensor. | mS/cm |
| Dataset-specific Instrument Name | Conductivity, Temperature, Depth |
| Generic Instrument Name | CTD - profiler |
| Dataset-specific Description | CTD measurements taken, CTD unit unidentified, Sea-Bird CTD |
| Generic Instrument 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. |
| Website | |
| Platform | ARSV Laurence M. Gould |
| Report | |
| Start Date | 2002-02-06 |
| End Date | 2002-03-03 |
| Description | Methods & Sampling Sea-Bird CTD Data Files. Processing Description These files have been shipboard processed using standard SeaBird software to one decibar averaged intervals. |
| Website | |
| Platform | ARSV Laurence M. Gould |
| Report | |
| Start Date | 2002-04-07 |
| End Date | 2002-05-20 |
| Description | Methods & Sampling Sea-Bird CTD Data Files. Processing Description These files have been shipboard processed using standard SeaBird software to one decibar averaged intervals. |
| Website | |
| Platform | ARSV Laurence M. Gould |
| Report | |
| Start Date | 2002-07-29 |
| End Date | 2002-09-18 |
| Description | Methods & Sampling Sea-Bird CTD Data Files. Processing Description These files have been shipboard processed using standard SeaBird software to one decibar averaged intervals. |
| Website | |
| Platform | ARSV Laurence M. Gould |
| Report | |
| Start Date | 2003-02-13 |
| End Date | 2003-03-07 |
| Description | Methods & Sampling Sea-Bird CTD Data Files. Processing Description These files have been shipboard processed using standard SeaBird software to one decibar averaged intervals. |
| Website | |
| Platform | ARSV Laurence M. Gould |
| Report | |
| Start Date | 2001-04-20 |
| End Date | 2001-06-05 |
| Description | Processing Description Data Manager notes: Serving these data became data rescue, not just data serving. These CTD data were processed aboard the Gould and distributed on the cruise CDs. The were in a different directory on the CD from other Gould and Palmer cruises, so they were missed in the first automated serving of data. In order for the program to find them and pick them for serving, they were transfered to a different directory ('ocean/ctd') and renamed (a 'd' was added to the CTD name [meaning downcast] and they were switched to lower case.). When looking at the data, it was determined that the units for the conductivity sensors were different from other Gould and Palmer cruises, so additional parameters were added to the final data listing. Since mS/cm and S/m are not interchangeable, an additional parameter, cond_alt, was employed for the mS/cm data. |
The fundamental objectives of United States Global Ocean Ecosystems Dynamics (U.S. GLOBEC) Program are dependent upon the cooperation of scientists from several disciplines. Physicists, biologists, and chemists must make use of data collected during U.S. GLOBEC field programs to further our understanding of the interplay of physics, biology, and chemistry. Our objectives require quantitative analysis of interdisciplinary data sets and, therefore, data must be exchanged between researchers. To extract the full scientific value, data must be made available to the scientific community on a timely basis.
U.S. GLOBEC (GLOBal ocean ECosystems dynamics) is a research program organized by oceanographers and fisheries scientists to address the question of how global climate change may affect the abundance and production of animals in the sea.
The U.S. GLOBEC Program currently had major research efforts underway in the Georges Bank / Northwest Atlantic Region, and the Northeast Pacific (with components in the California Current and in the Coastal Gulf of Alaska). U.S. GLOBEC was a major contributor to International GLOBEC efforts in the Southern Ocean and Western Antarctic Peninsula (WAP).
| Funding Source | Award |
|---|---|
| NSF Antarctic Sciences (NSF ANT) |