Current direction, bathythermograph (xbt), CTD, and other data from moored current meter casts and other instruments in the Coastal Waters of California as part of the North California Coastal Circulation Study (NCCCS) project, 1987-03-09 to 1989-11-01 (NCEI Accession 9000209)
Current direction, bathythermograph (xbt), CTD, and other data were collected using moored current meter casts and other instruments in the Coastal Waters of California from March 9, 1987 to November 1, 1989. Data were submitted by Edgerton, Germeshausen and Grier, INC. as part of the North California Coastal Circulation Study (NCCCS) project. Data has been processed by NODC to the NODC standard F015- Current Meter Data, F022- CTD High Resolution, and C116- Bathythermograph XBT formats.
The F015 format is used for time series measurements of ocean currents. These data are obtained from current meter moorings and represent Eulerian method of current measurement, i.e., the meters are deployed at a fixed point and measure flow past a sensor. Position, bottom depth, sensor depth, and meter characteristics are reported for each station. The data record comprises values of east-west (u) and north-south (v) current vector components at specified date and time. Current direction is defined as the direction toward which the water is flowing with positive directions east and north and negative directions west and south. Data values may be subject to averaging or filtering and are typically reported at 10-15 minute time intervals. Water temperature, pressure, and conductivity or salinity may also be reported. A text record is available for optional comments.
The F022 format contains high-resolution data collected using CTD (conductivity-temperature-depth) and STD (salinity-temperature-depth) instruments. As they are lowered and raised in the oceans, these electronic devices provide nearly continuous profiles of temperature, salinity, and other parameters. Data values may be subject to averaging or filtering or obtained by interpolation and may be reported at depth intervals as fine as 1m. Cruise and instrument information, position, date, time and sampling interval are reported for each station. Environmental data at the time of the cast (meteorological and sea surface conditions) may also be reported. The data record comprises values of temperature, salinity or conductivity, density (computed sigma-t), and possibly dissolved oxygen or transmissivity at specified depth or pressure levels. Data may be reported at either equally or unequally spaced depth or pressure intervals. A text record is available for comments.
The C116 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.
The F015 format is used for time series measurements of ocean currents. These data are obtained from current meter moorings and represent Eulerian method of current measurement, i.e., the meters are deployed at a fixed point and measure flow past a sensor. Position, bottom depth, sensor depth, and meter characteristics are reported for each station. The data record comprises values of east-west (u) and north-south (v) current vector components at specified date and time. Current direction is defined as the direction toward which the water is flowing with positive directions east and north and negative directions west and south. Data values may be subject to averaging or filtering and are typically reported at 10-15 minute time intervals. Water temperature, pressure, and conductivity or salinity may also be reported. A text record is available for optional comments.
The F022 format contains high-resolution data collected using CTD (conductivity-temperature-depth) and STD (salinity-temperature-depth) instruments. As they are lowered and raised in the oceans, these electronic devices provide nearly continuous profiles of temperature, salinity, and other parameters. Data values may be subject to averaging or filtering or obtained by interpolation and may be reported at depth intervals as fine as 1m. Cruise and instrument information, position, date, time and sampling interval are reported for each station. Environmental data at the time of the cast (meteorological and sea surface conditions) may also be reported. The data record comprises values of temperature, salinity or conductivity, density (computed sigma-t), and possibly dissolved oxygen or transmissivity at specified depth or pressure levels. Data may be reported at either equally or unequally spaced depth or pressure intervals. A text record is available for comments.
The C116 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.
Dataset Citation
- Cite as: Magnell, Bruce A; Edgerton, Germeshausen and Grier, Inc. (2003). Current direction, bathythermograph (xbt), CTD, and other data from moored current meter casts and other instruments in the Coastal Waters of California as part of the North California Coastal Circulation Study (NCCCS) project, 1987-03-09 to 1989-11-01 (NCEI Accession 9000209). [indicate subset used]. NOAA National Centers for Environmental Information. Dataset. https://www.ncei.noaa.gov/archive/accession/9000209. Accessed [date].
Dataset Identifiers
ISO 19115-2 Metadata
gov.noaa.nodc:9000209
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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 | 1987-03-09 to 1989-11-01 |
Spatial Bounding Box Coordinates |
West: -125.28
East: -123.04
South: 37.98
North: 41.77
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Data Presentation Form | Digital table - digital representation of facts or figures systematically displayed, especially in columns |
Dataset Progress Status | Complete - production of the data has been completed Historical archive - data has been stored in an offline storage facility |
Data Update Frequency | As needed |
Supplemental Information | Original Abstract: The data for the Northern California Coastal Circulation Study (NCCS) was provided by B.A. Magnell of EG&G Washington Analytical Services Center. The data contains all the NCCS pilot program results from March-August 1987. These data have been quality controlled by either Scripps or EG&G. Current drifter data parameters include current velocity and direction. NODC reference numbers L01132-L01138 and L01142 contain additional data for the project from March 1987 to November 1989. This work was supported by MMS service contract 14-12-001-30312. Tapes: A01257, W03445, W13482 DNODC*DRIFTER. *Note: The documentation includes a hardcopy sample of the record format. Temperature data from current meters tapes: A01257, W03445, W01109 DNODC*EGGTEMPSOUT. Thermosalinograph data parameters are location, time, date, temperature and salinity. L01132-L01138 contain the data for the actual project from March 1987 to November 1989. Tapes: A01257, W03445. All this data has been processed by NODC and is currently available in C116 Bathythermograph XBT, F015 Current Meter Components and F022 CTD Hi Resolution file formats. Note: Metadata for this accession were extracted from a legacy database maintained by the U.S. National Oceanographic Data Center (NODC). The design of the database did not exactly reflect the FGDC Content Standard for Digital Geospatial Metadata (CSDGM). Principal Investigator (PI) and organization contact information accurately represents all available information from the legacy database at the time that this description was created. However, proper attribution of a PI to a specific institution or the role (submitting or collecting) taken by an institution may not be correct due to inexact mapping between fields in the legacy database and the CSDGM. Due to this uncertainty, the contact information was initially recorded in the Supplemental Information element of the CSDGM description. To develop more accurate metadata, NCEI reviews metadata for all accessions on an ongoing basis. Points of contact for this dataset include: Contact info: Agency: EDGERTON, GERMESHAUSEN AND GRIER, INC. PI: Magnell, Dr. Bruce Address: address: 237 RIVERVIEW AVE. city: WALTHAM state: MA postal: 02543 country: UNITED STATES |
Purpose | This dataset is available to the public for a wide variety of uses including scientific research and analysis. |
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Data Center keywords | NODC COLLECTING INSTITUTION NAMES THESAURUS NODC SUBMITTING INSTITUTION NAMES THESAURUS Global Change Master Directory (GCMD) Data Center Keywords |
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Place keywords | NODC SEA AREA NAMES THESAURUS Global Change Master Directory (GCMD) Location Keywords |
Project keywords | NODC PROJECT NAMES THESAURUS Global Change Master Directory (GCMD) Project Keywords |
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Last Modified: 2024-02-17T13:43:56Z
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