{
  "accessLevel": "public",
  "bureauCode": [
    "010:12"
  ],
  "contactPoint": {
    "@type": "vcard:Contact",
    "fn": "Melinda Martinez",
    "hasEmail": "mailto:melindamartinez@usgs.gov"
  },
  "description": "Wind speed, wind direction (3D) and gas concentrations are measured at 10 Hz and statistically processed using the eddy covariance technique to half-hour estimates of flux rates of gas exchange between the ecosystem and atmosphere. Three gases were measured: carbon dioxide, methane and water vapor. Simultaneous measurements of environmental drivers are also measured and recorded as half-hourly values: photosynthetic photon flux density, downwelling and upwelling short and long wave radiation, air temperature, relative humidity and precipitation. Variable names and units follow AmeriFlux and FLUXNET standards. This site is a flotant herbaceous freshwater marsh in Salvador Wildlife Management Area near Luling, LA.",
  "distribution": [
    {
      "@type": "dcat:Distribution",
      "accessURL": "https://doi.org/10.17190/AMF/1543387",
      "description": "Landing page for access to the data",
      "format": "XML",
      "mediaType": "application/http",
      "title": "Digital Data"
    },
    {
      "@type": "dcat:Distribution",
      "description": "The metadata original format",
      "downloadURL": "https://data.usgs.gov/datacatalog/metadata/USGS.81135a0d-5391-4881-85c5-a23fe2667ec2.xml",
      "format": "XML",
      "mediaType": "text/xml",
      "title": "Original Metadata"
    }
  ],
  "identifier": "http://datainventory.doi.gov/id/dataset/USGS_81135a0d-5391-4881-85c5-a23fe2667ec2",
  "keyword": [
    "Emergent Tidal Marsh",
    "Freshwater Tidal Marsh",
    "USGS:81135a0d-5391-4881-85c5-a23fe2667ec2",
    "biota",
    "environment",
    "greenhouse gases",
    "wetland functions"
  ],
  "modified": "2024-11-21T00:00:00Z",
  "publisher": {
    "@type": "org:Organization",
    "name": "U.S. Geological Survey"
  },
  "spatial": "-90.288900, 29.856700, -90.284900, 29.860700",
  "theme": [
    "geospatial"
  ],
  "title": "Methane, carbon dioxide and water vapor fluxes from a Louisiana tidal freshwater marsh, 2023"
}