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Coastal Waters (Australia) | Northern Territory Coast, NT
136 record(s)
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Temperature, linearly interpolated from CARS2000 mean and seasonal fields to 0.1 degree spaced grid, at depths of 0, 150, 500, 1000 and 2000 metres. The loess filter used to create CARS2000 resolves at each point a mean value and a sinusoid with 1 year period (and in some cases a 6 month period sinusoid - the "semi-annual cycle".) The provided "annual amplitude" is simply the magnitude of that annual sinusoid. CARS is a set of seasonal maps of temperature, salinity, dissolved oxygen, nitrate, phosphate and silicate, generated using Loess mapping from all available oceanographic data in the region. It covers the region 100-200E, 50-0S, on a 0.5 degree grid, and on 56 standard depth levels. Higher resolution versions are also available for the Australian continental shelf. The data was obtained from the World Ocean Atlas 98 and CSIRO Marine and NIWA archives. It was designed to improve on the Levitus WOA98 Atlas, in the Australian region. CARS2000 is derived from ocean cast data, which is always measured above the seafloor. However, for properties which do not change rapidly near the seafloor, this would not lead to a significant error. All the limitations of CARS2000 also apply here.
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This dataset series comprises deck logs from the vessel "Rama" in which observations made during the Gulf of Carpentaria Prawn Survey are recorded. This survey was conducted jointly by the Queensland State and Commonwealth Governments during 1963-1965 to examine the prawn resources of the south-eastern corner of the Gulf of Carpentaria.
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This dataset was collected to calculate optimal seasonal opening dates for the commercial fishery and to provide other management advice, by undertaking size sampling of pre-season and in-season banana prawns (F. merguiensis and F. indicus). In-season sampling of commercial catch on commercial trawlers (1983 - 1985) was supplemented during the season by data obtained from quality control staff at KFV Fisheries Pty Ltd. Sampling was organized for pre- and in-season searching and sampling voyages and prawns were sampled and measured from as many trawlers as possible.
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Northern Prawn Fishery fishers' GPS plotter data collected between 1977 and 1997. The data indicates which areas in the Gulf of Carpentaria are considered untrawlable.
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This record describes gravity data collected on RV Investigator voyage IN2019_T02, titled: "Deep seascapes of the Great Barrier Reef: Uncovering submarine canyons and landslides." The voyage took place between October 4 and October 14, 2019 departing from Brisbane (QLD) and arriving in Darwin (NT). The gravity meter instrument is a MicroG Lacoste Air-Sea II. Data are stored in .ENV and .DAT data files at CSIRO. There are 26 files totalling 199 MB of raw data in this dataset. No processing has been conducted on this data. Additional information regarding this dataset is contained in the GSM data acquisition and processing report.
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This record describes sub bottom profiler data collected on RV Investigator voyage IN2019_T02, titled: "Deep seascapes of the Great Barrier Reef: Uncovering submarine canyons and landslides." The voyage took place between October 4 and October 14, 2019 departing from Brisbane (QLD) and arriving in Darwin (NT). The Kongsberg SBP120 (sub bottom profiler) was used to acquire data containing the specular reflections at different sediment interfaces below the seafloor. The SBP120 provides a 3° by 3° angular resolution. The echosounder's frequency sweep range is from 2.5 to 7 kHz. The SBP120 was logged sporadically for the extent of the voyage. Data are stored in *.raw (1,216 files 26.5 GB) raw and *.seg (2,430 files 52.9 GB) segy formats at CSIRO. The segy format data had a real time processing stream applied, which applies gain, a gain correction, matched filter with replica shaping, an attribute calculation for instantaneous amplitude and time variable gain. 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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Seabird and incidental cetacean and seal sightings were recorded during daylight hours during the transit from Sydney to Broome, Western Australia in March 2017 Observations were made every ten minutes in the forward quadrant. There were 657 observations from 30 species of birds, 1 cetacean, 5 seals and one turtle. The commonest bird species were Sterna anaethetus and Puffinus carneipes. Each species has been linked where possible to the World Register of Marine Species (WoRMS https://www.marinespecies.org). The data has been published to the Ocean Biodiversity Information System (OBIS https://obis.org).
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This record describes multibeam echosounder data collected on RV Investigator voyage IN2019_T03, "ORCA: Using the Investigator radar as a moving reference for the Australian operational radar network" which departed Darwin on the 23 December 2019 and returned to Henderson on the 2 January 2020. The Kongsberg EM710 MKII multibeam echosounder was used to acquire seafloor bathymetry and backscatter information and watercolumn backscatter between Darwin and Henderson. The EM710 MKII provides a 0.5° by 1° transmit and receive angular resolution respectively. The echosounder's nominal frequency range is from 40 to 100 kHz. Data are stored in *.all raw format for bathymetry and backscatter and *.wcd format for watercolumn backscatter at CSIRO. There are 258 *.raw files totalling 70.4 GB and 257 *.wcd files totalling 464 GB of raw data in this dataset. Sound velocity profiles were applied to this data during data acquisition. Bathymetry data contained in *.all format are corrected for motion and position. Tide corrections were not applied to the processed data. Processed data has had outliers removed. Processed line data are available in *.gsf and ascii format, and processed bathymetry and backscatter grids in geotiff format. Additional information regarding this dataset, including further information on processing streams, is contained in the GSM data acquisition and processing report. Additional data products may be available on request.
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This data set contains Simrad EK500 single beam echosounder data at 38 and 120 kHz and Simrad EA500 single beam echosounder data at 12 kHz from the Southern Surveyor. The EK500 data is primarily for water column characterisation (fish stocks, microplankton distribution) and on occasions for seabed classification (particularly prior to the EM300 swath mapper being installed), while the EA500 data is primarily for bathymetric readings.
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Southern Surveyor Voyage SS2012_T07 - This list includes ALL data backup media and documentation returned to CMAR Data Centre after this voyage: DATA BACKUPS (Media Type - Media Label - Media location): - - LTO tape - Shore Backup SS2012_T07 copy 1- created 1/11/2012 -Stored - Hobart Marine Labs, Block 2, Datacentre Filing Cabinet 1 Drawer2, Archive box 8A - LTO tape - Shore Backup SS2012_T07 copy 2- created 1/11/2012 - Sent to Floreat 18/01/2013. PAPER DOCUMENTS - Bridge Logs - Hourly Logs - Swath Logs - CTD logs - End Of Voyage Form - Data request Form TRIM REFERENCES Container AB2012/3066 Record number C2012/11126 Hobart (5010) - Building 5 - Room 5GS69 (CMAR MNF) - Compactus 1 On-line Documentation: (as of 2/11/2012) On-line Documentation: - ss2012_t07_Bridge_logs.pdf - ss2012_t07_CTD_logs.pdf - ss2012_t07_Data_Request_form.pdf - ss2012_t07_Electronics_Report.pdf - ss2012_t07_EOV_form.pdf - ss2012_t07_Nutrient_logs.pdf - ss2012_t07_Salinity_sheets.pdf - ss2012_t07_Swath_logs.pdf - ss2012_t07_logs.zip Recommended MarLIN title, Links and On-line Documentation list have been written to /home/mnf/processedVoyageData/RV_Southern_Surveyor/ss2012_t07/global_docs/SS2012_T07MarLIN_Raw_Links_Report.txt. Documentation is on the internal network: \processedVoyageData [voyage] \global_docs The raw data will be archived by the CSIRO Data Access Portal in 2015.