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Australian Western Equatorial JGOFS Data: Oceanographic profile temperature, salinity, nutrients, and other measurements collected using bottle and high resolution CTD from the FRANKLIN in the Equatorial Pacific, South Pacific, and other locations from 1990 to 1993 (NCEI Accession 0000569)
The OZGOFS research project was a multidisciplinary project comprising 3 research cruises on the R.V. Franklin in October 1990, July 1992 and November 1993. The area of operations was between 2ºS and 6ºN along 147ºE and between 10ºS and 10ºN along 155ºE. The ADCP data is presented in 8 meter bins at 20 minute averages along the major transects. CTD data for each cruise is presented as individual stations. The first 12 lines in each profile are header information: ship, date, start time, bottom time, finish time (UTC), cruise number, start position, bottom position, and finish position (as dd mm.ss), maximum depth and ocean depth. The CTD data, plus density (as sigma-t), fluorescence and PAR is presented in 2 meter bins. Where no information is presented under a header (e.g. PAR, fluorescence) the sensor was not present on the CTD during the cast. Fluorescence profiles from a SeaTech fluorometer mounted on the CTD converted to chlorophyll-a profiles using a regression of fluorescence burst data (taken when a niskin bottle is closed) and the extracted chlorophyll sample at that depth. The fluorescence profiles were calibrated using chlorophyll-a evaluated using the trichromatic equations for FR 9008, but HPLC chlorophyll-a on FR 9205. The regressions are given in the metafiles. Where possible, the extracted chlorophyll-a data have been depth-matched and included on the data files. The parameters sampled from niskin bottles (salinity, nutrients, chlorophyll and pigments, bacteria and cyanobacteria, lipids, nutrients, primary production) use the same template, derived from the hydrochemistry sampling sheets, but are in separate directories. The general form is for each station to be listed, along with a counter, time and date of sampling, station position, niskin number and position on the rosette (when supplied), and then the data. Radionuclide data was taken at one site on FR 9205, and three on FR 9308, and consisted of measurements of dissolved and particulate 226Ra, 210Pb, and 210Po. Underway data are found in the Surface CO2 directories. Surface pCO2 data measured using an equilibrator are from FR 9205 only, and contain date, time, position, surface temperature and salinity, atmospheric pressure and fCO2 data. There are estimates of pCO2 from pH studies in surface waters from FR 9008, FR 9205, and FR 9308. These files contain Files in the Underway Data directory contain date, time, position, surface temperature, salinity, fluorescence (in uncalibrated Turner units), pH and pCO2 data. The free-floating sediment trap data, from FR 9308 only, consists of HPLC pigments and pigment flux estimates, and flux estimates for dry weight, carbonate, organic matter, and total carbon, nitrogen and phosphorus fluxes. Zooplankton was sampled on FR 9205 and FR 9308 using a 200 micron mesh aperture free-fall plankton net. Settled volumes and dominant taxa only were recorded.
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Videos and still images from TAN0713 (Eastern Australian Margin)
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The Eastern Margin survey (TAN0713, GA survey #2436) to the Capel and Faust basins and Gifford Guyot was conducted on the Tangaroa between 7 October and 22 November 2007 in collaboration with staff from New Zealand's National Institute of Water and Atmospheric Research (NIWA), Fugro Robertson Inc., and the University of the Sea. The voyage was operated through the Offshore Energy Security Program, with the principal aims of exploring deep-sea habitats and processes on a subsided marginal plateau and submerged guyot and examining the underlying geology as an assessment for petroleum potential of the basins. A total of 42 video transects (each approx. 1 hr in duration) were surveyed and 6,229 still photographs acquired in water depths of 259-2,260 m. Video footage was recorded on mini DV tapes, and copied to digital format. Video snippets were also created of representative habitats for some stations. Video and image files or associated parent folders are named according to station number, followed by CAM and then the deployment number. For example 37CAM35 represents a video transect from Station 37 that was the 35th video transect on the survey. For further information on this survey please refer to the post-survey report (GA Record 2009/22 - Geocat #68630) and GA Record 2009/26 (Geocat #69358).
Cloud amount/frequency, SALINITY and other data from EL AUSTRAL, CAPITAN OCA BALDA and other platforms in the SW Atlantic from 1983-01-15 to 1987-03-23 (NCEI Accession 8900173)
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Data has been processed by NODC to the NODC standard Bathythermograph (XBT) (C116) and Ocean Station (C100) formats. The Oceanographic Station Data (C100) format contains physical-chemical oceanographic data recorded at discrete depth levels. Most of the observations were made using multi-bottle Nansen casts or other types of water samplers. A small amount (about 5 percent) were obtained using electronic CTD (conductivity-temperature-depth) or STD (salinity-temperature-depth) recorders. The CTD/STD data were reported to NODC at depth levels equivalent to Nansen cast data, however, and have been processed and stored the same as the Nansen data. Cruise information (e.g., ship, country, institution), position, date, and time, and reported for each station. The principal measured parameters and temperature and salinity, but dissolved oxygen, phosphate, total phosphorus, silicate, nitrate, nitrite, and pH may be reported. Meteorological conditions at the time of the cast (e.g., air temperature and pressure, wind, waves) may also be reported, as well as auxiliary data such as water color (Forel-Ule scale), water transparency (Secchi disk depth), and depth to bottom. Values of density (sigma-t) sound velocity, and dynamic depth anomaly are computed from measured parameters. Each station contains the measurements taken at the observed depth levels, but also includes data values interpolated to a set of standard depth levels. The C116/C118 format contains temperature-depth profile data obtained using expendable bathythermograph (XBT) instruments. Cruise information, position, date and time were reported for each observation. The data record was comprised of pairs of temperature-depth values. Unlike the MBT Data File, in which temperature values were recorded at uniform 5 m intervals, the XBT data files contained temperature values at non-uniform depths. These depths were recorded at the minimum number of points ("inflection points") required to accurately define the temperature curve. Standard XBTs can obtain profiles to depths of either 450 or 760 m. With special instruments, measurements can be obtained to 1830 m. Prior to July 1994, XBT data were routinely processed to one of these standard types. XBT data are now processed and loaded directly in to the NODC Ocean Profile Data Base (OPDB). Historic data from these two data types were loaded into the OPDB.
Videos and images from GA2476 (Western Australian Margin)
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The Western Margin survey (GA survey #2476) was conducted on the R.V. Sonne between 25 October 2008 and 19 January 2009 in collaboration with staff from the Western Australia Geological Survey and the University of the Sea. The voyage was operated through the Offshore Energy Security Program, with the principal aims of acquiring geological, geophysical, oceanographic, and biological data over poorly known areas of Australia's western continental margin. A total of 44 video transects were surveyed, with an associated 6,229 still photographs acquired from water depth of 831-4,827 m. Video was recorded to mini DV tapes, and copied to digital format. Video snippets were also created of representative habitats for some stations. Video and image files or associated parent folders are named according to station number, followed by gear code (CAM = OFOS camera which collected still images and video, GR = BODO grab which collected black and white video) and then the deployment number. For example 36GR19 represents a video transect from Station 36 that was the 19th video transect from the BODO grab on the survey. For further information on this survey please refer to the post-survey report (GA Record 2009/38 - Geocat #69606) and GA Record 2009/26 (Geocat #69358).
Temperature, salinity, and nutrients measurement collected using bottle from various platforms in the North Pacific Ocean from 1964 to 2008 (NCEI Accession 0057639)
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The Japan Meteorological Agency (JMA) has carried out oceanographic observations using research vessels and ocean data buoys for monitoring ocean variability which ranges from seasons to decades.
Surface underway measurements of fugacity of carbon dioxide (fCO2, seawater and atmospheric), water temperature, and salinity from 3 cruises in the equatorial Pacific Ocean, collected onboard NOAA Ship Ka'imimoana in 1999 (NCEI Accession 0268311)
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This dataset contains data from underway fCO2 (seawater and atmospheric), water temperature, and salinity measurements collected on 3 equatorial Pacific cruises from 1999-01-30 to 1999-07-26 as part of a ship-of-opportunity time-series. Cruise names and EXPOCODEs: KA1999_01 (33KM19990130), KA1999_02 (33KM19990506),KA1999_03 (33KM19990708). Since 1982, NOAA's Pacific Marine Environmental Laboratory has made underway CO2 observations in the equatorial Pacific as a companion project to the Global Tropical Moored Buoy Array. This effort was conducted with the support of NOAA's Global Ocean Monitoring and Observing Program.
Cloud amount/frequency, NITRATE and other data from MATSUSHIMA, MITO MARU and other platforms in the NW Pacific from 1973-01-05 to 1985-06-06 (NCEI Accession 8600163)
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Data has been processed by NODC to the NODC standard Bathythermograph XBT Selected Depths (SBT) (C125) and Ocean Station (C100) formats. The Oceanographic Station Data (C100) format contains physical-chemical oceanographic data recorded at discrete depth levels. Most of the observations were made using multi-bottle Nansen casts or other types of water samplers. A small amount (about 5 percent) were obtained using electronic CTD (conductivity-temperature-depth) or STD (salinity-temperature-depth) recorders. The CTD/STD data were reported to NODC at depth levels equivalent to Nansen cast data, however, and have been processed and stored the same as the Nansen data. Cruise information (e.g., ship, country, institution), position, date, and time, and reported for each station. The principal measured parameters and temperature and salinity, but dissolved oxygen, phosphate, total phosphorus, silicate, nitrate, nitrite, and pH may be reported. Meteorological conditions at the time of the cast (e.g., air temperature and pressure, wind, waves) may also be reported, as well as auxiliary data such as water color (Forel-Ule scale), water transparency (Secchi disk depth), and depth to bottom. Values of density (sigma-t) sound velocity, and dynamic depth anomaly are computed from measured parameters. Each station contains the measurements taken at the observed depth levels, but also includes data values interpolated to a set of standard depth levels. The UBT (C125) format contains temperature-depth profile data obtained using expendable bathythermograph (XBT) instruments. Cruise information, position, date and time were reported for each observation. The data records are comprised of pairs of temperature-depth values. Depths are selected by the originator - usually at standard horizons or some fixed interval. Standard XBTs can obtain profiles to depths of either 450 or 760 m. Special instruments permitted measurements to be obtained to 1830 m.
Biological and chemical oceanographic processes in the waters surrounding the Harriet A production platform on the North West Shelf, Western Australia
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In September 1994 and 1995, multi-disciplinary cruises were undertaken by the Australian Institute of Marine Science (AIMS) and the Australian Geological Survey Organization (AGSO) to the southern Northwest Shelf to examine physical, biological and geochemical processes affecting the fate of produced formation water (PFW) discharged into shallow Northwest Shelf waters. The 1994 cruise was used as a pilot study to define local biological and chemical conditions at the discharge site, while the 1995 cruise was designed to measure the dispersion of the discharged PFW and associated hydrocarbons and to measure water column processes likely to affect PFW constituents and their fate in the environment. Vertical profiles of water temperature and salinity were measured at all stations with a Seabird SBE25 CTD. In 1995, the CTD was fitted with a Biospherical QSP-200 quantum sensor to measure subsurface irradiance. Discrete water samples were collected from three to seven depths through the water column with Niskin bottles. Subsamples taken from the Niskin bottles were analysed for dissolved inorganic nutrients (NH4+, NO2", NO3", PO42", Si), dissolved organic nutrients (DON, DOP, DOC), particulate matter (PN, PP, suspended solids) and plant pigments (chl a, phaeophytin). On one occasion in 1994 and three times in 1995, samples of fresh PFW were obtained from the Harriet A production platform. A variety of nutrient and hydrocarbon analyses were made on the PFW. Primary production rates were determined by 14C incorporation into particulate organic matter.
Underway physical and meteorological data collected by NOAA Ship McARTHUR II in the North Pacific from 2004-05-13 to 2004-06-10 (NCEI Accession 0001711)
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AUV Imagery from Gippsland Basin III (GA355 Long-term after survey)
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This dataset is part of the Gippsland Marine Environmental Monitoring (GMEM) project. The GMEM was developed in response to stakeholder concerns from the fisheries industry about a Geoscience Australia seismic survey in the Gippsland Basin (GA352 in April 2015), in addition to a broader need to acquire baseline data to be used to quantify impacts of seismic operations on marine organisms. A component of this study was to acquire images of the seafloor before and after the seismic survey for analysis of potential impacts of seismic operations on scallops. This dataset contains information collected from the Autonomous Underwater Vehicle (AUV) Phoenix and AUV Sirius on survey GA-355 conducted 18-22 February 2016 on the M.V. Dell Richey II. The AUV Phoenix was the main system used to collect imagery analysed in the GMEM project using the two loop pattern (Figure 1) from previous surveys (GA-350 and GA-353). The AUV Sirius was deployed to collect concurrent dense image grids at selected stations (05, 08, 37, 45) and to provide a back-up to the Phoenix in the event of equipment issues. This occurred at Stations 40 and 41, and as such the Sirius collected images in the two-loop pattern. In addition to the main study area for the GMEM, the AUV Sirius was also deployed outisde Devonport, Tasmania in order to establish workflow, fine-tune technical aspects, and census scallop beds that were known to be in ill health. Imagery from these stations are included in sub-folder 'Devonport_Sites'. Due to strong currents and possible navigation issues, some of the AUV paths deviated from the planned path and also varied in altitude. Nevertheless, the georeferencing of images released in this data package reflects the actual position of the AUV during image acquisition. Post-processing included image colour-balancing and simultaneous localisation and mapping (SLAM) processing of the stereo imagery to improve georeferencing of the imagery. The optical imagery is provided in zip files as geotiffs (individual colour-corrected images), mosaics, and mesh (3D seafloor reconstructions).
RV Investigator Voyage IN2016 V03 XBT Data
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This record describes expendable bathythermograph, XBT, data collected on the RV Investigator voyage IN2016_V03, 'Monitoring Ocean Change and Variability along 170° W from the ice edge to the equator', which departed Hobart on the 26 April 2016 and returned to Lautoka, Fiji on the 30 June 2016. There was a port call at Wellington, New Zealand, 26 - 27 May for some science personnel change; this resulted in two "legs" of the voyage therefore Leg 1 is 26 April - 26 May 2016, and Leg 2 27 May - 30 June 2016. The ship XBT system as well as Bec Cowley's wireless XBT system were used to collect multiple XBT drops at CTD deployments for data comparisons. A total of 147 XBT casts were conducted over the duration of this voyage on the ship XBT system. Data are stored in netCDF files at CSIRO. Additional information regarding this dataset is contained in the GSM data acquisition and processing report. Additional data products may be available on request.
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