Skip to main content
U.S. flag

An official website of the United States government

SPLASH Field Study; Atmospheric Surface Flux Station #30 measurements (level 2 Processed), Sep2021-Jul2023 (NCEI Accession 0303959)

Published by NOAA National Centers for Environmental Information | National Oceanic and Atmospheric Administration, Department of Commerce | Catalog Last Checked: May 06, 2026 at 03:34 AM | Dataset Last Updated: May 06, 2025 at 12:00 AM
Processed (Level 2) measurements and derived variables from the Atmospheric Surface Flux Station #30 (ASFS-30) deployed at the Kettle Ponds Annex site (38°56.3686' N, 106°58.1781' W) during the Study of Precipitation, the Lower Atmosphere, and Surface for Hydrometeorology (SPLASH) campaign near Gothic, Colorado, from September 2021 through July 2023. The ASFS measured variables of the surface energy budget, momentum flux, near-surface meteorology, and soil properties. Measurements of high-resolution 3-dimensional winds were observed at a nominal height of 4.6 m (depending on snow depth). Measurements of upwelling broadband radiation and meteorology observed from a nominal height of 2.9 m. The measurements are included in three netCDF files per day. The "sledmet" files are comprised of 1-min averages of measured and derived variables, including near-surface meteorology, surface skin temperature, snow depth, radiative fluxes, and conductive fluxes. The "sledseb" files are 10-min averages of the same variables as in the 1-min files and also include calculations of turbulent sensible and latent heat fluxes, momentum flux, and associated diagnostics, surface stress, and Monin-Obukhov parameters using both eddy covariance and bulk methodologies, all valid for the 10-min intervals. Both of these file types also contain a "_qc" variable paired with each measurement variable, or family of variables, that is a temporally-matched quality control code: 0 = good data, 1 = caution (data may be suspect), 2 = bad data, and -1 = missing (no data was collected). The "10hz" files include 3-dimensional winds and gas densities of water vapor and carbon dioxide that are quality-controlled, aggregated to a regular 10-Hz temporal grid, and (for winds) rotated into the earth coordinate frame. A detailed documentation of the measurement conditions, the processing steps taken to construct this data set, and other caveats and uncertainties will be provided in an accompanying published data manuscript.

Resources

7 resources available

Find Related Datasets

Search by Tags

Click any tag below to search for similar datasets

0303959 AIR TEMPERATURE BAROMETRIC PRESSURE Carbon Dioxide - Air dew point Mixing Ratio Radiative Flux RELATIVE HUMIDITY

Complete Metadata
@type dcat:Dataset
accessLevel non-public
contactPoint 
                                            {
  "fn": "NOAA National Centers for Environmental Information",
  "@type": "vcard:Contact",
  "hasEmail": "mailto:ncei.info@noaa.gov"
}
describedByType application/octet-steam
description Processed (Level 2) measurements and derived variables from the Atmospheric Surface Flux Station #30 (ASFS-30) deployed at the Kettle Ponds Annex site (38°56.3686' N, 106°58.1781' W) during the Study of Precipitation, the Lower Atmosphere, and Surface for Hydrometeorology (SPLASH) campaign near Gothic, Colorado, from September 2021 through July 2023. The ASFS measured variables of the surface energy budget, momentum flux, near-surface meteorology, and soil properties. Measurements of high-resolution 3-dimensional winds were observed at a nominal height of 4.6 m (depending on snow depth). Measurements of upwelling broadband radiation and meteorology observed from a nominal height of 2.9 m. The measurements are included in three netCDF files per day. The "sledmet" files are comprised of 1-min averages of measured and derived variables, including near-surface meteorology, surface skin temperature, snow depth, radiative fluxes, and conductive fluxes. The "sledseb" files are 10-min averages of the same variables as in the 1-min files and also include calculations of turbulent sensible and latent heat fluxes, momentum flux, and associated diagnostics, surface stress, and Monin-Obukhov parameters using both eddy covariance and bulk methodologies, all valid for the 10-min intervals. Both of these file types also contain a "_qc" variable paired with each measurement variable, or family of variables, that is a temporally-matched quality control code: 0 = good data, 1 = caution (data may be suspect), 2 = bad data, and -1 = missing (no data was collected). The "10hz" files include 3-dimensional winds and gas densities of water vapor and carbon dioxide that are quality-controlled, aggregated to a regular 10-Hz temporal grid, and (for winds) rotated into the earth coordinate frame. A detailed documentation of the measurement conditions, the processing steps taken to construct this data set, and other caveats and uncertainties will be provided in an accompanying published data manuscript.
distribution 
                                            [
  {
    "@type": "dcat:Distribution",
    "title": "NCEI Dataset Landing Page",
    "accessURL": "https://doi.org/10.25921/2q0f-j097",
    "mediaType": "text/html",
    "description": "Navigate directly to the URL for a descriptive web page with download links.",
    "describedByType": "application/octet-stream"
  },
  {
    "@type": "dcat:Distribution",
    "title": "Descriptive Information",
    "accessURL": "https://www.ncei.noaa.gov/archive/accession/oas/303959",
    "mediaType": "text/html",
    "description": "Navigate directly to the URL for a descriptive web page with download links.",
    "describedByType": "application/octet-stream"
  },
  {
    "@type": "dcat:Distribution",
    "title": "HTTPS",
    "accessURL": "https://www.ncei.noaa.gov/archive/accession/download/303959",
    "mediaType": "text/html",
    "description": "Navigate directly to the URL for data access and direct download.",
    "describedByType": "application/octet-stream"
  },
  {
    "@type": "dcat:Distribution",
    "title": "FTP",
    "accessURL": "ftp://ftp-oceans.ncei.noaa.gov/nodc/archive/arc0233/0303959/",
    "mediaType": "text/html",
    "description": "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).",
    "describedByType": "application/octet-stream"
  },
  {
    "@type": "dcat:Distribution",
    "title": "https://doi.org/10.5281/zenodo.10313894",
    "mediaType": "placeholder/value",
    "description": "related dataset",
    "downloadURL": "https://doi.org/10.5281/zenodo.10313894",
    "describedByType": "application/octet-stream"
  },
  {
    "@type": "dcat:Distribution",
    "title": "GCMD Keyword Forum Page",
    "accessURL": "https://forum.earthdata.nasa.gov/app.php/tag/GCMD%2BKeywords",
    "mediaType": "text/html",
    "description": "Global Change Master Directory (GCMD). 2025. GCMD Keywords, Version 21. Greenbelt, MD: Earth Science Data and Information System, Earth Science Projects Division, Goddard Space Flight Center (GSFC), National Aeronautics and Space Administration (NASA). URL (GCMD Keyword Forum Page): https://forum.earthdata.nasa.gov/app.php/tag/GCMD+Keywords",
    "describedByType": "application/octet-stream"
  },
  {
    "@type": "dcat:Distribution",
    "title": "NCEI Contact Information",
    "accessURL": "https://www.ncei.noaa.gov/contact",
    "mediaType": "text/html",
    "description": "Information for contacts at NCEI.",
    "describedByType": "application/octet-stream"
  }
]
identifier https://data.noaa.gov/waf/NOAA/NESDIS/ncei/accessions/iso/xml/0303959.xml
issued 2025-05-02T00:00:00.000+00:00
keyword 
                                            [
  "0303959",
  "AIR TEMPERATURE",
  "BAROMETRIC PRESSURE",
  "Carbon Dioxide - Air",
  "dew point",
  "Mixing Ratio",
  "Radiative Flux",
  "RELATIVE HUMIDITY",
  "Skin Temperature - Land",
  "Snow thickness",
  "WIND DIRECTION",
  "WIND SPEED",
  "radiometer",
  "in situ",
  "NOAA Physical Sciences Laboratory",
  "University of Colorado Boulder, Cooperative Institute for Research In Environmental Sciences",
  "NOAA Physical Sciences Laboratory",
  "meteorology",
  "DOC/NOAA/OAR/ESRL/PSL > Physical Sciences Laboratory, Earth System Research Laboratory, OAR, NOAA, U.S. Department of Commerce",
  "UCO/CIRES > Cooperative Institute for Research in Environmental Sciences, University of Colorado",
  "SPLASH - Study of Precipitation, the Lower Atmosphere, and Surface for Hydrometeorology",
  "EARTH SCIENCE > ATMOSPHERE > ATMOSPHERIC CHEMISTRY > CARBON AND HYDROCARBON COMPOUNDS > ATMOSPHERIC CARBON DIOXIDE",
  "EARTH SCIENCE > ATMOSPHERE > ATMOSPHERIC PRESSURE",
  "EARTH SCIENCE > ATMOSPHERE > ATMOSPHERIC RADIATION > RADIATIVE FLUX",
  "EARTH SCIENCE > ATMOSPHERE > ATMOSPHERIC TEMPERATURE",
  "EARTH SCIENCE > ATMOSPHERE > ATMOSPHERIC TEMPERATURE > SURFACE TEMPERATURE > DEW POINT TEMPERATURE",
  "EARTH SCIENCE > ATMOSPHERE > ATMOSPHERIC WATER VAPOR > WATER VAPOR INDICATORS > HUMIDITY > HUMIDITY MIXING RATIO",
  "EARTH SCIENCE > ATMOSPHERE > ATMOSPHERIC WATER VAPOR > WATER VAPOR INDICATORS > HUMIDITY > RELATIVE HUMIDITY",
  "EARTH SCIENCE > ATMOSPHERE > ATMOSPHERIC WINDS > SURFACE WINDS > WIND DIRECTION",
  "EARTH SCIENCE > ATMOSPHERE > ATMOSPHERIC WINDS > SURFACE WINDS > WIND SPEED",
  "EARTH SCIENCE > CRYOSPHERE > SNOW/ICE > SNOW DEPTH",
  "EARTH SCIENCE > LAND SURFACE > SURFACE THERMAL PROPERTIES > SKIN TEMPERATURE",
  "altitude",
  "atmos_pressure",
  "azimuth",
  "base_time",
  "heading",
  "lat",
  "lon",
  "snow_depth",
  "snow_flag",
  "sr50_dist",
  "time",
  "time_offset",
  "zenith_true",
  "RADIOMETERS",
  "Atmospheric Surface Flux Station #30 (ASFS-30)",
  "Campbell Scientific SR50A",
  "Hemisphere V102",
  "Vaisala PTU 300",
  "CONTINENT > NORTH AMERICA > UNITED STATES OF AMERICA > COLORADO",
  "JBD42M"
]
landingPage https://www.ncei.noaa.gov/contact
language 
                                            []
license https://creativecommons.org/publicdomain/zero/1.0/
modified 2025-05-06T00:00:00.000+00:00
publisher 
                                            {
  "name": "NOAA National Centers for Environmental Information",
  "@type": "org:Organization"
}
references 
                                            [
  "https://doi.org/10.5281/zenodo.10313894"
]
rights otherRestrictions
spatial -106.581781,38.563686,-106.581781,38.563686
temporal 2021-09-28T00:00:00+00:00/2023-07-19T00:00:00+00:00
title SPLASH Field Study; Atmospheric Surface Flux Station #30 measurements (level 2 Processed), Sep2021-Jul2023 (NCEI Accession 0303959)

data.gov

An official website of the GSA's Technology Transformation Services

Looking for U.S. government information and services?
Visit USA.gov