Dataset Overview | National Centers for Environmental Information (NCEI)

Eastward and northward components of ocean current, water temperature, and others collected from moorings in North East Pacific Coast from 1990-10-09 to 1991-02-26 (NCEI Accession 0164862)

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The Dynamics of the Columbia River Plume Project was sponsored by the National Science Foundation (NSF) grant number OCE 8918193 to Barbara Hickey, Lead Principal Investigator (University of Washington). Other PIs included on the project were Bill Boicourt (University of Maryland), David Jay (University of Washington), and Len Pietrafesa (North Carolina State University). Twenty-two current meter arrays (14 surface and 8 subsurface moorings) were deployed in the vicinity of the mouth of the Columbia River from Oct. 1990 through Feb. 1991. Most sites were paired with a surface mooring and a subsurface mooring located within the same vicinity. Positions for the sites and their mooring ID are shown on the CRmoorsitesfla50.jpg file included with the data. In most cases surface and subsurface moorings for the same location were deployed within a quarter mile of each other and are represented as one station on the chart. If the distance between the surface and subsurface moorings was greater than a quarter of a mile an average position was used to plot that station. Surface moorings are designated by the mooring ID followed by an 'S' to indicate surface while the subsurface moorings have an 'A' appended to the mooring ID. Contour lines for 25, 50, 100, 250, 500 meters are shown.
Results from this study can be found in Hickey, B.M., L. Pietrafesa, D. Jay and W.C. Boicourt (1998) The Columbia River Plume Study: Subtidal variability of the velocity and salinity fields. Journal of Geophysical Research, 103(C5): 10339-10368.

Dataset Citation

Cite as: Hickey, Barbara; Boicourt, Bill; Jay, David; Pietrafesa, Len (2017). Eastward and northward components of ocean current, water temperature, and others collected from moorings in North East Pacific Coast from 1990-10-09 to 1991-02-26 (NCEI Accession 0164862). [indicate subset used]. NOAA National Centers for Environmental Information. Dataset. https://www.ncei.noaa.gov/archive/accession/0164862. Accessed [date].

Dataset Identifiers

ISO 19115-2 Metadata

gov.noaa.nodc:0164862

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Download Data	HTTPS (download) Navigate directly to the URL for data access and direct download. FTP (download) These data are available through the File Transfer Protocol (FTP). FTP is no longer supported by most internet browsers. You may copy and paste the FTP link to the data into an FTP client (e.g., FileZilla or WinSCP).
Distribution Formats	Originator data format
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	1990-10-09 to 1991-02-26
Spatial Bounding Box Coordinates	West: -124.396 East: -123.99567 South: 46.01533 North: 46.58067
Spatial Coverage Map

General Documentation	NCEI Dataset Landing Page Navigate directly to the URL for a descriptive web page with download links. Descriptive Information Navigate directly to the URL for a descriptive web page with download links.
Associated Resources	Hickey, B. M., Pietrafesa, L. J., Jay, D. A., and Boicourt, W. C. (1998), The Columbia River Plume Study: Subtidal variability in the velocity and salinity fields, J. Geophys. Res., 103(C5), 10339-10368, https://doi.org/10.1029/97JC03290. https://doi.org/10.1029/97jc03290 journal article

Publication Dates	publication: 2017-08-14
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	Submission Package ID: 5CM41A
Purpose	The purpose of this project was to determine the dynamics of the formation of the Columbia River plume and the role of mixing processes in plume formation.
Use Limitations	accessLevel: Public Distribution liability: NOAA and NCEI make no warranty, expressed or implied, regarding these data, nor does the fact of distribution constitute such a warranty. NOAA and NCEI cannot assume liability for any damages caused by any errors or omissions in these data. If appropriate, NCEI can only certify that the data it distributes are an authentic copy of the records that were accepted for inclusion in the NCEI archives.

Dataset Citation	Cite as: Hickey, Barbara; Boicourt, Bill; Jay, David; Pietrafesa, Len (2017). Eastward and northward components of ocean current, water temperature, and others collected from moorings in North East Pacific Coast from 1990-10-09 to 1991-02-26 (NCEI Accession 0164862). [indicate subset used]. NOAA National Centers for Environmental Information. Dataset. https://www.ncei.noaa.gov/archive/accession/0164862. Accessed [date].
Cited Authors	Hickey, Barbara University of Washington Boicourt, Bill University of Maryland Jay, David University of Washington Pietrafesa, Len North Carolina State University
Principal Investigators	Barbara M. Hickey University of Washington (UW) William Boicourt University of Maryland (UMD) David A. Jay University of Washington (UW) Len Pietrafesa North Carolina State University (NCSU)
Contributors	University of Washington (UW)
Resource Providers	Sue Geier University of Washington; School of Oceanography University of Washington; School of Oceanography
Points of Contact	Barbara M. Hickey University of Washington (UW)
Publishers	NOAA National Centers for Environmental Information
Acknowledgments	Related Funding Agency: NSF

Theme keywords	NODC DATA TYPES THESAURUS CONDUCTIVITY CURRENT METER - EAST-WEST COMPONENT (U) CURRENT METER - NORTH-SOUTH COMPONENT (V) HYDROSTATIC PRESSURE WATER TEMPERATURE NODC OBSERVATION TYPES THESAURUS in situ WMO_CategoryCode oceanography Global Change Master Directory (GCMD) Science Keywords EARTH SCIENCE > OCEANS > OCEAN CIRCULATION > OCEAN CURRENTS EARTH SCIENCE > OCEANS > OCEAN PRESSURE > WATER PRESSURE EARTH SCIENCE > OCEANS > OCEAN TEMPERATURE > WATER TEMPERATURE EARTH SCIENCE > OCEANS > SALINITY/DENSITY > CONDUCTIVITY
Data Center keywords	NODC COLLECTING INSTITUTION NAMES THESAURUS University of Washington NODC SUBMITTING INSTITUTION NAMES THESAURUS University of Washington; School of Oceanography Global Change Master Directory (GCMD) Data Center Keywords UWA/OCEAN > School of Oceanography, University of Washington
Platform keywords	NODC PLATFORM NAMES THESAURUS moorings Global Change Master Directory (GCMD) Platform Keywords MOORINGS
Instrument keywords	NODC INSTRUMENT TYPES THESAURUS ADCP current meter water level recorder Global Change Master Directory (GCMD) Instrument Keywords ADCP > Acoustic Doppler Current Profiler CURRENT METERS WL/CR > WATER LEVEL/CLIMATE RECORDERS
Place keywords	NODC SEA AREA NAMES THESAURUS Columbia River estuary - Washington/Oregon Northeast Pacific Ocean (limit-180) Global Change Master Directory (GCMD) Location Keywords OCEAN > PACIFIC OCEAN > NORTH PACIFIC OCEAN
Keywords	NCEI ACCESSION NUMBER 0164862

Use Constraints	Cite as: Hickey, Barbara; Boicourt, Bill; Jay, David; Pietrafesa, Len (2017). Eastward and northward components of ocean current, water temperature, and others collected from moorings in North East Pacific Coast from 1990-10-09 to 1991-02-26 (NCEI Accession 0164862). [indicate subset used]. NOAA National Centers for Environmental Information. Dataset. https://www.ncei.noaa.gov/archive/accession/0164862. Accessed [date].
Access Constraints	Use liability: NOAA and NCEI cannot provide any warranty as to the accuracy, reliability, or completeness of furnished data. Users assume responsibility to determine the usability of these data. The user is responsible for the results of any application of this data for other than its intended purpose.
Fees	In most cases, electronic downloads of the data are free. However, fees may apply for custom orders, data certifications, copies of analog materials, and data distribution on physical media.

Lineage information for: dataset
Processing Steps	2017-08-14T22:21:21Z - NCEI Accession 0164862 v1.1 was published.
Output Datasets	NCEI Accession 0164862 v1.1 NCEI Accession 0164862 v1.1 (download) published 2017-08-14T22:21:21Z

Lineage information for: dataset
Processing Steps	Data Type: u, v components of velocity (calculated); Units: cm/sec; Observation Type: in situ; Sampling Instrument: Aanderaa current meter (AA); Sampling and Analyzing Method: AA instruments measured current speed and direction. Data was sampled in 30 minute intervals. Directions were rotated into degrees true north and resolved into u and v components then edited for spurious values. U and v components were lo passed filtered with a cosine Lanczos filter with a half power point of approximately 2.5 hours to suppress high frequency signals. The data was interpolated to even hours and decimated to hourly values. The first and last 6 points were deleted.; Data Quality Information: Data were plotted and visually inspected for spurious values. Data Type: TEMPERATURE - WATER [WATER TEMPERATURE] (measured); Units: degrees C; Observation Type: in situ; Sampling Instrument: Aanderaa current meter (AA); Sampling and Analyzing Method: AA instruments measured temperature. Data was sampled in 30 minute intervals, then edited for spurious values. They were lo passed filtered with a cosine Lanczos filter with a half power point of approximately 2.5 hours to suppress high frequency signals. The data was interpolated to even hours and decimated to hourly values. The first and last 6 points were deleted. In some cases an adjustment was made to the temperature data. Please see the CRAAReadme file for a list of adjustments.; Data Quality Information: Data were plotted and visually inspected for spurious values. Data Type: CONDUCTIVITY (measured); Units: mmho/cm; Observation Type: in situ; Sampling Instrument: Aanderaa current meter (AA); Sampling and Analyzing Method: Some AA instruments measured conductivity. Data was sampled in 30 minute intervals, then edited for spurious values. Conductivity was converted to salinity (PSS-78) using the temperature and pressure data measured by the AA. In some cases an adjustment was made to the conductivity, temperature or pressure data. In that case the adjusted values were used to compute salinity data. Please see the CRAAReadme file for a list of adjustments. The data were lo passed filtered with a cosine Lanczos filter with a half power point of approximately 2.5 hours to suppress high frequency signals. The data was interpolated to even hours and decimated to hourly values. The first and last 6 points were deleted.; Data Quality Information: Data were plotted and visually inspected for spurious values. Data Type: PRESSURE - WATER (measured); Units: pounds per square inch (PSI); Observation Type: in situ; Sampling Instrument: Aanderaa current meter (AA); Sampling and Analyzing Method: Some of the AA instruments measured pressure. Data was sampled in 30 minute intervals, then edited for spurious values. Pressure, if measured, was converted from PSI to decibars and used to calculate salinity using the temperature and conductivity data measured by the AA. If the pressure measurement was questionable or no sensor was installed then a constant value was used to compute salinity. Please see the CRAAReadme file for more information. The data were lo passed filtered with a cosine Lanczos filter with a half power point of approximately 2.5 hours to suppress high frequency signals. The data was interpolated to even hours and decimated to hourly values. The first and last 6 points were deleted.; Data Quality Information: Data were plotted and visually inspected for spurious values. Data Type: TEMPERATURE - WATER [WATER TEMPERATURE] (measured); Units: degrees C; Observation Type: in situ; Sampling Instrument: Aanderaa water level recorder (WLR); Sampling and Analyzing Method: Some of WLRs measured temperature. Data was sampled in 30 minute intervals, then edited for spurious values. They were lo passed filtered with a cosine Lanczos filter with a half power point of approximately 2.5 hours to suppress high frequency signals. The data was interpolated to even hours and decimated to hourly values. The first and last 6 points were deleted.; Data Quality Information: Data were plotted and visually inspected for spurious values. Data Type: PRESSURE - WATER (measured); Units: decibars; Observation Type: in situ; Sampling Instrument: Aanderaa Water Level Recorder (WLR); Sampling and Analyzing Method: Some of the WLRs measured pressure. Data was sampled in 30 minute intervals, then edited for spurious values. The data was lo passed filtered with a cosine Lanczos filter with a half power point of approximately 2.5 hours to suppress high frequency signals. The data was interpolated to even hours and decimated to hourly values. The first and last 6 points were deleted.; Data Quality Information: Data were plotted and visually inspected for spurious values. Data Type: u, v components of velocity (measured); Units: cm/sec; Observation Type: in situ; Sampling Instrument: InterOcean S4 current meter (S4); Sampling and Analyzing Method: S4s are vector averaging electromagnetic current meters that directly measure magnitude and direction of currents. Data was set up to average 1800 half second samples over the first 15 minutes every 30 or 60 minutes. Directions were rotated into degrees true north then edited for spurious values. If the data was sampled 15 minutes every 30 minutes u and v components were lo passed filtered with a cosine Lanczos filter with a half power point of approximately 2.5 hours to suppress high frequency signals. The data was interpolated to even hours and decimated to hourly values. The first and last 6 points were deleted. If the data was sampled 15 minutes every 60 minutes the data was not lo passed filtered.; Data Quality Information: Data were plotted and visually inspected for spurious values. Data Type: TEMPERATURE - WATER [WATER TEMPERATURE] (measured); Units: degrees C; Observation Type: in situ; Sampling Instrument: InterOcean S4 current meter (S4); Sampling and Analyzing Method: S4 temperature data was set up to average 1800 half second samples over the first 15 minutes every 30 or 60 minutes. Data was edited for spurious values. In some cases an adjustment was made to the temperature data. Please see the CRS4Readme file for a list of adjustments. If the data was sampled 15 minutes every 30 minutes temperature values were lo passed filtered with a cosine Lanczos filter with a half power point of approximately 2.5 hours to suppress high frequency signals. The data was interpolated to even hours and decimated to hourly values. The first and last 6 points were deleted. If the data was sampled 15 minutes every 60 minutes the data was not lo passed filtered.; Data Quality Information: Data were plotted and visually inspected for spurious values. Data Type: CONDUCTIVITY (measured); Units: mS/cm; Observation Type: in situ; Sampling Instrument: InterOcean S4 current meter (S4); Sampling and Analyzing Method: Some S4 instruments had conductivity sensors on them. S4 conductivity data was set up to average 1800 half second samples over the first 15 minutes every 30 or 60 minutes. Data was edited for spurious values. In some cases an adjustment was made to the conductivity and/or temperature data. These adjustments were used in the salinity computations. Please see the CRS4Readme file for a list of adjustments. Conductivity was converted to salinity using the temperature data measured by the S4. In all cases a constant value equal to 5 decibars was used to compute salinity. If the data was sampled 15 minutes every 30 minutes temperature values were lo passed filtered with a cosine Lanczos filter with a half power point of approximately 2.5 hours to suppress high frequency signals. The data was interpolated to even hours and decimated to hourly values. The first and last 6 points were deleted. If the data sampled 15 minutes every 60 minutes the data was not lo passed filtered.; Data Quality Information: Data were plotted and visually inspected for spurious values. Data Type: PRESSURE - WATER (measured); Units: decibars; Observation Type: in situ; Sampling Instrument: InterOcean S4 current meter (S4); Sampling and Analyzing Method: One of the S4 instruments measured pressure. The data was questionable and not used.; Data Quality Information: Data were plotted and visually inspected for spurious values. Data Type: u, v components of velocity (measured); Units: cm/sec; Observation Type: in situ; Sampling Instrument: Vector Measuring Current Meter (VMCM); Sampling and Analyzing Method: VMCM instruments measure the x and y vector of the horizontal water velocity and a compass heading. The compass heading allows the x and y vector to be rotated into a north-south and east-west coordinate pair. Directions were rotated into degrees true north. Data was sampled in 15 minute intervals, then edited for spurious values. The u and v components of velocity were filtered with a half power point of approximately 2.5 hours and decimated to hourly values. Hourly values were linearly interpolated to even hours. The first and last 6 points were deleted.; Data Quality Information: Data were plotted and visually inspected for spurious values. Data Type: TEMPERATURE - WATER [WATER TEMPERATURE] (measured); Units: degrees C; Observation Type: in situ; Sampling Instrument: Vector Measuring Current Meter (VMCM); Sampling and Analyzing Method: Most of the VMCM instruments measured temperature. Data was sampled in 15 minute intervals, then edited for spurious values. The temperature data was filtered with a half power point of approximately 2.5 hours and decimated to hourly values. Hourly values were linearly interpolated to even hours. The first and last 6 points were deleted.; Data Quality Information: Data were plotted and visually inspected for spurious values. Data Type: u, v components of velocity (measured); Units: cm/sec; Observation Type: in situ; Sampling Instrument: Teledyne RD Instruments 150 kHz, 300 kHz, and 1200 kHz Acoustic Doppler Current Profiler (ADCP); Sampling and Analyzing Method: ADCPs were installed on moorings at K1A and K3S (300 kHz), N1A (1200 kHz), and S3S (150 kHz). ADCPs measure water velocity at several depths, referred to as bins. Distance between bins was set to 1 meter, except at S3S the distance between bins was set to 2 meters. The sample interval was set to 60 minutes at K1A, K3S, and S3S. At N1A the data was originally sampled at 5 minute intervals, then block averaged to hourly values. All data was rotated to true North. Please see CRADCPUWReadme and CRADCPNCSUReadme for details of the sample set up.; Data Quality Information: Extraneous bins have not been removed from the data. Data Type: TEMPERATURE - WATER [WATER TEMPERATURE] (measured); Units: degrees C; Observation Type: in situ; Sampling Instrument: Teledyne RD Instruments 150 kHz, 300 kHz Acoustic Doppler Profiler (ADCP); Sampling and Analyzing Method: The ADCP contains a thermistor that measures temperature at the heads. The temperature is measured every time the instrument pings. Only the ADCPs at K3S and S3S include the temperature data. Please see CRADCPUWReadme for details of the sample set up.; Data Quality Information: Temperature values were plotted and visually inspected for spikes or spurious values.

Lineage information for: dataset

Processing Steps

Data Type: u, v components of velocity (calculated); Units: cm/sec; Observation Type: in situ; Sampling Instrument: Aanderaa current meter (AA); Sampling and Analyzing Method: AA instruments measured current speed and direction. Data was sampled in 30 minute intervals. Directions were rotated into degrees true north and resolved into u and v components then edited for spurious values. U and v components were lo passed filtered with a cosine Lanczos filter with a half power point of approximately 2.5 hours to suppress high frequency signals. The data was interpolated to even hours and decimated to hourly values. The first and last 6 points were deleted.; Data Quality Information: Data were plotted and visually inspected for spurious values.
Data Type: TEMPERATURE - WATER [WATER TEMPERATURE] (measured); Units: degrees C; Observation Type: in situ; Sampling Instrument: Aanderaa current meter (AA); Sampling and Analyzing Method: AA instruments measured temperature. Data was sampled in 30 minute intervals, then edited for spurious values. They were lo passed filtered with a cosine Lanczos filter with a half power point of approximately 2.5 hours to suppress high frequency signals. The data was interpolated to even hours and decimated to hourly values. The first and last 6 points were deleted. In some cases an adjustment was made to the temperature data. Please see the CRAAReadme file for a list of adjustments.; Data Quality Information: Data were plotted and visually inspected for spurious values.
Data Type: CONDUCTIVITY (measured); Units: mmho/cm; Observation Type: in situ; Sampling Instrument: Aanderaa current meter (AA); Sampling and Analyzing Method: Some AA instruments measured conductivity. Data was sampled in 30 minute intervals, then edited for spurious values. Conductivity was converted to salinity (PSS-78) using the temperature and pressure data measured by the AA. In some cases an adjustment was made to the conductivity, temperature or pressure data. In that case the adjusted values were used to compute salinity data. Please see the CRAAReadme file for a list of adjustments. The data were lo passed filtered with a cosine Lanczos filter with a half power point of approximately 2.5 hours to suppress high frequency signals. The data was interpolated to even hours and decimated to hourly values. The first and last 6 points were deleted.; Data Quality Information: Data were plotted and visually inspected for spurious values.
Data Type: PRESSURE - WATER (measured); Units: pounds per square inch (PSI); Observation Type: in situ; Sampling Instrument: Aanderaa current meter (AA); Sampling and Analyzing Method: Some of the AA instruments measured pressure. Data was sampled in 30 minute intervals, then edited for spurious values. Pressure, if measured, was converted from PSI to decibars and used to calculate salinity using the temperature and conductivity data measured by the AA. If the pressure measurement was questionable or no sensor was installed then a constant value was used to compute salinity. Please see the CRAAReadme file for more information. The data were lo passed filtered with a cosine Lanczos filter with a half power point of approximately 2.5 hours to suppress high frequency signals. The data was interpolated to even hours and decimated to hourly values. The first and last 6 points were deleted.; Data Quality Information: Data were plotted and visually inspected for spurious values.
Data Type: TEMPERATURE - WATER [WATER TEMPERATURE] (measured); Units: degrees C; Observation Type: in situ; Sampling Instrument: Aanderaa water level recorder (WLR); Sampling and Analyzing Method: Some of WLRs measured temperature. Data was sampled in 30 minute intervals, then edited for spurious values. They were lo passed filtered with a cosine Lanczos filter with a half power point of approximately 2.5 hours to suppress high frequency signals. The data was interpolated to even hours and decimated to hourly values. The first and last 6 points were deleted.; Data Quality Information: Data were plotted and visually inspected for spurious values.
Data Type: PRESSURE - WATER (measured); Units: decibars; Observation Type: in situ; Sampling Instrument: Aanderaa Water Level Recorder (WLR); Sampling and Analyzing Method: Some of the WLRs measured pressure. Data was sampled in 30 minute intervals, then edited for spurious values. The data was lo passed filtered with a cosine Lanczos filter with a half power point of approximately 2.5 hours to suppress high frequency signals. The data was interpolated to even hours and decimated to hourly values. The first and last 6 points were deleted.; Data Quality Information: Data were plotted and visually inspected for spurious values.
Data Type: u, v components of velocity (measured); Units: cm/sec; Observation Type: in situ; Sampling Instrument: InterOcean S4 current meter (S4); Sampling and Analyzing Method: S4s are vector averaging electromagnetic current meters that directly measure magnitude and direction of currents. Data was set up to average 1800 half second samples over the first 15 minutes every 30 or 60 minutes. Directions were rotated into degrees true north then edited for spurious values. If the data was sampled 15 minutes every 30 minutes u and v components were lo passed filtered with a cosine Lanczos filter with a half power point of approximately 2.5 hours to suppress high frequency signals. The data was interpolated to even hours and decimated to hourly values. The first and last 6 points were deleted. If the data was sampled 15 minutes every 60 minutes the data was not lo passed filtered.; Data Quality Information: Data were plotted and visually inspected for spurious values.
Data Type: TEMPERATURE - WATER [WATER TEMPERATURE] (measured); Units: degrees C; Observation Type: in situ; Sampling Instrument: InterOcean S4 current meter (S4); Sampling and Analyzing Method: S4 temperature data was set up to average 1800 half second samples over the first 15 minutes every 30 or 60 minutes. Data was edited for spurious values. In some cases an adjustment was made to the temperature data. Please see the CRS4Readme file for a list of adjustments. If the data was sampled 15 minutes every 30 minutes temperature values were lo passed filtered with a cosine Lanczos filter with a half power point of approximately 2.5 hours to suppress high frequency signals. The data was interpolated to even hours and decimated to hourly values. The first and last 6 points were deleted. If the data was sampled 15 minutes every 60 minutes the data was not lo passed filtered.; Data Quality Information: Data were plotted and visually inspected for spurious values.
Data Type: CONDUCTIVITY (measured); Units: mS/cm; Observation Type: in situ; Sampling Instrument: InterOcean S4 current meter (S4); Sampling and Analyzing Method: Some S4 instruments had conductivity sensors on them. S4 conductivity data was set up to average 1800 half second samples over the first 15 minutes every 30 or 60 minutes. Data was edited for spurious values. In some cases an adjustment was made to the conductivity and/or temperature data. These adjustments were used in the salinity computations. Please see the CRS4Readme file for a list of adjustments. Conductivity was converted to salinity using the temperature data measured by the S4. In all cases a constant value equal to 5 decibars was used to compute salinity. If the data was sampled 15 minutes every 30 minutes temperature values were lo passed filtered with a cosine Lanczos filter with a half power point of approximately 2.5 hours to suppress high frequency signals. The data was interpolated to even hours and decimated to hourly values. The first and last 6 points were deleted. If the data sampled 15 minutes every 60 minutes the data was not lo passed filtered.; Data Quality Information: Data were plotted and visually inspected for spurious values.
Data Type: PRESSURE - WATER (measured); Units: decibars; Observation Type: in situ; Sampling Instrument: InterOcean S4 current meter (S4); Sampling and Analyzing Method: One of the S4 instruments measured pressure. The data was questionable and not used.; Data Quality Information: Data were plotted and visually inspected for spurious values.
Data Type: u, v components of velocity (measured); Units: cm/sec; Observation Type: in situ; Sampling Instrument: Vector Measuring Current Meter (VMCM); Sampling and Analyzing Method: VMCM instruments measure the x and y vector of the horizontal water velocity and a compass heading. The compass heading allows the x and y vector to be rotated into a north-south and east-west coordinate pair. Directions were rotated into degrees true north. Data was sampled in 15 minute intervals, then edited for spurious values. The u and v components of velocity were filtered with a half power point of approximately 2.5 hours and decimated to hourly values. Hourly values were linearly interpolated to even hours. The first and last 6 points were deleted.; Data Quality Information: Data were plotted and visually inspected for spurious values.
Data Type: TEMPERATURE - WATER [WATER TEMPERATURE] (measured); Units: degrees C; Observation Type: in situ; Sampling Instrument: Vector Measuring Current Meter (VMCM); Sampling and Analyzing Method: Most of the VMCM instruments measured temperature. Data was sampled in 15 minute intervals, then edited for spurious values. The temperature data was filtered with a half power point of approximately 2.5 hours and decimated to hourly values. Hourly values were linearly interpolated to even hours. The first and last 6 points were deleted.; Data Quality Information: Data were plotted and visually inspected for spurious values.
Data Type: u, v components of velocity (measured); Units: cm/sec; Observation Type: in situ; Sampling Instrument: Teledyne RD Instruments 150 kHz, 300 kHz, and 1200 kHz Acoustic Doppler Current Profiler (ADCP); Sampling and Analyzing Method: ADCPs were installed on moorings at K1A and K3S (300 kHz), N1A (1200 kHz), and S3S (150 kHz). ADCPs measure water velocity at several depths, referred to as bins. Distance between bins was set to 1 meter, except at S3S the distance between bins was set to 2 meters. The sample interval was set to 60 minutes at K1A, K3S, and S3S. At N1A the data was originally sampled at 5 minute intervals, then block averaged to hourly values. All data was rotated to true North. Please see CRADCPUWReadme and CRADCPNCSUReadme for details of the sample set up.; Data Quality Information: Extraneous bins have not been removed from the data.
Data Type: TEMPERATURE - WATER [WATER TEMPERATURE] (measured); Units: degrees C; Observation Type: in situ; Sampling Instrument: Teledyne RD Instruments 150 kHz, 300 kHz Acoustic Doppler Profiler (ADCP); Sampling and Analyzing Method: The ADCP contains a thermistor that measures temperature at the heads. The temperature is measured every time the instrument pings. Only the ADCPs at K3S and S3S include the temperature data. Please see CRADCPUWReadme for details of the sample set up.; Data Quality Information: Temperature values were plotted and visually inspected for spikes or spurious values.

Acquisition Information (collection)
Instrument	ADCP current meter water level recorder
Platform	moorings

Last Modified: 2022-07-25T23:10:02Z
For questions about the information on this page, please email: ncei.info@noaa.gov

Eastward and northward components of ocean current, water temperature, and others collected from moorings in North East Pacific Coast from 1990-10-09 to 1991-02-26 (NCEI Accession 0164862)

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