Temperature profile data from XBT casts along repeat transects in the Pacific Ocean and Indian Ocean for the High Resolution XBT Network by Scripps Institute of Oceanography from 1989 to present
Repeat high resolution expendable Bathythermograph (XBT) transects have been collected along a number of commercial shipping routes spanning the Pacific Ocean, the Drake Passage, and Tasmania to Dumont d'Urville. On each of the transects generally four surveys are conducted per year. Temperature data are usually collected by a scientist on board the vessel using an automatic XBT launcher designed at Scripps Institution of Oceanography (SIO). The launcher holds 6 XBT probes which are pre-programmed to drop at specific locations (using GPS) or times. The XBT probes are Sippican "Deep Blue", which are rated to 760 m depth, but typically return temperature to a depth of around 850 m at ship speeds of 15 to 18 knots. Sequential XBT casts are separated by 30-40 km along track, with closer station spacings of 10 km near boundaries, across the equator and in topographically varying regions. Sampling begins and ends near the 200 m isobath at the coastal endpoints of the tracks.
Dataset Citation
- Cite as: Scripps High Resolution XBT Program (2001). Temperature profile data from XBT casts along repeat transects in the Pacific Ocean and Indian Ocean for the High Resolution XBT Network by Scripps Institute of Oceanography from 1989 to present. [indicate subset used]. NOAA National Centers for Environmental Information. Dataset. https://www.ncei.noaa.gov/archive/accession/SIO-HighResolutionXBTNetwork. Accessed [date].
Dataset Identifiers
ISO 19115-2 Metadata
gov.noaa.nodc:SIO-HighResolutionXBTNetwork
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Ordering Instructions | Contact NCEI for other distribution options and instructions. |
Distributor |
NOAA National Centers for Environmental Information +1-301-713-3277 NCEI.Info@noaa.gov |
Dataset Point of Contact |
NOAA National Centers for Environmental Information ncei.info@noaa.gov |
Time Period | 1989-03-01 to Present |
Spatial Bounding Box Coordinates |
West: 25.736
East: -17.65
South: -64.97
North: 61.001
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Data Presentation Form | Digital table - digital representation of facts or figures systematically displayed, especially in columns |
Dataset Progress Status | Ongoing - data is continually being updated Historical archive - data has been stored in an offline storage facility |
Data Update Frequency | As needed |
Supplemental Information | Prior to 1994 profiles were collected using a modified analog-to-digital (A/D) conversion board as described by Roemmich and Cornuelle (1987). From 1994 through 2004 a Sippican MK12 data acquisition system was employed, with the modification of the user interface driver programs. These programs were developed at SIO to provide a more user-friendly environment for the ship board data collectors, and to eventually enable collection by non-scientific personnel such as the ship's crew. Profiles are currently collected using AMVER SEAS 2K Windows based software and the Sippican MK21 data acquisition system. AMVER SEAS 2K was developed by NOAA's Atlantic Oceanographic and Meteorological Laboratory (AOML). It incorporates many of SIO's older data acquisition functions. |
Purpose | This dataset is available to the public for a wide variety of uses including scientific research and analysis. |
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Last Modified: 2024-01-28T14:09:36Z
For questions about the information on this page, please email: ncei.info@noaa.gov
For questions about the information on this page, please email: ncei.info@noaa.gov