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    • SPLASH Field Study; CLAMPS2 Doppler Lidar VAD Data (NCEI Accession 0304717)

    Metadata Updated: December 2, 2025

    These files contain 24-hour periods of data collected from the CLAMPS2 Halo Streamline XR+ Doppler lidar. The Doppler lidar conducts regular conical scans at a set elevation angle. These data are then passed through a typical VAD algorithm to retrieve horizontal wind speed and direction profiles. These data were collected during the SPLASH project. Data collection and processing: For the SPLASH campaign, the CLAMPS2 Doppler lidar collected PPI scans at 60 deg elevation every 5 minutes. The Doppler lidar provides range-resolved, line-of-sight measurements of radial velocity, intensity (signal-to-noise ratio [SNR]+1), and attenuated backscatter. In the case of PPI scans meant for VAD analysis, these data are passed through a VAD code to produce profiles of horizontal wind speed and direction. Vertical velocity is also provided, but it is not as high quality as vertical velocity more directly measured by vertical stares. The provided files provide the intensity field (SNR+1), which can be used as a ‘filter’ for noise. A good rule of thumb cutoff is 1.01. Data format: Data are provided in netcdf format. The typical naming convention is clampsdlvad1turnC2.c1.YYYYMMDD.HHmmss.cdf, following closely to ARM file naming convention. The files have time and height dimensions.

    Access & Use Information

    License: No license information was provided. If this work was prepared by an officer or employee of the United States government as part of that person's official duties it is considered a U.S. Government Work.

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    Dates

    Metadata Date 2025-11-13T13:10:04Z
    Metadata Created Date July 1, 2025
    Metadata Updated Date December 2, 2025
    Reference Date(s) June 4, 2025 (publication)
    Frequency Of Update asNeeded

    Metadata Source

    Harvested from NOAA/NESDIS/ncei/accessions

    Other Data Resources

    Graphic Preview

    Preview graphic

    Additional Metadata

    Resource Type Dataset
    Metadata Date 2025-11-13T13:10:04Z
    Metadata Created Date July 1, 2025
    Metadata Updated Date December 2, 2025
    Reference Date(s) June 4, 2025 (publication)
    Responsible Party (Point of Contact)
    Contact Email
    Guid gov.noaa.nodc:0304717
    Access Constraints Cite as: Smith, Elizabeth; Bell, Tyler; Bunting, Lydia; Ballard, Brad (2025). SPLASH Field Study; CLAMPS2 Doppler Lidar VAD Data (NCEI Accession 0304717). [indicate subset used]. NOAA National Centers for Environmental Information. Dataset. https://doi.org/10.25921/rpx2-t532. Accessed [date]., 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.
    Bbox East Long -106.98782
    Bbox North Lat 38.86971
    Bbox South Lat 38.86971
    Bbox West Long -106.98782
    Coupled Resource
    Frequency Of Update asNeeded
    Graphic Preview Description Preview graphic
    Graphic Preview File https://www.ncei.noaa.gov/access/metadata/landing-page/bin/gfx?id=gov.noaa.nodc:0304717
    Graphic Preview Type PNG
    Harvest Object Id 5e85bdd0-4885-4315-b5c3-6c0ba9b4b52c
    Harvest Source Id c084a438-6f6b-470d-93e0-16aeddb9f513
    Harvest Source Title NOAA/NESDIS/ncei/accessions
    Licence accessLevel: Public
    Lineage
    Metadata Language eng
    Metadata Type geospatial
    Old Spatial {"type": "Point", "coordinates": [-106.98782, 38.86971]}
    Progress completed
    Spatial Data Service Type
    Spatial Reference System
    Spatial Harvester True
    Temporal Extent Begin 2021-10-06
    Temporal Extent End 2022-01-18

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