{"accessLevel": "public", "bureauCode": ["010:12"], "contactPoint": {"@type": "vcard:Contact", "fn": "Ed K. Hall", "hasEmail": "mailto:ed.hall@colostate.edu"}, "description": "These data describe how microorganisms facilitate the cycling of reactive nitrogen in alpine ecosystems. Samples of water and sediment were collected from a longitudinal study of Loch Vale watershed in Rocky Mountain National Park in 2011 and 2012. Data presented include concentrations of NO3+ and NH4+ of surface waters and the relative abundance of nitrifying bacteria in both the water column and adjacent sediments. In addition we evaluated the isotopic signature (\u03b415N and \u03b418O) of NO3- from each surface water sample and weekly precipitation samples. Data on chemistry and microbial nitrification activity are also included from two additional nearby watersheds.", "distribution": [{"@type": "dcat:Distribution", "accessURL": "https://doi.org/10.5066/P9PESUT6", "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.5f525b8a82ce4c3d123c1d8b.xml", "format": "XML", "mediaType": "text/xml", "title": "Original Metadata"}], "identifier": "http://datainventory.doi.gov/id/dataset/USGS_5f525b8a82ce4c3d123c1d8b", "keyword": ["Colorado Front Range", "Loch Vale watershed", "Rocky Mountain National Park", "USGS:5f525b8a82ce4c3d123c1d8b", "alpine ecosystems", "biota", "cryosphere", "freshwater ecosystems", "microbes", "nitrification", "nitrogen", "reactive nitrogen", "snow and ice cover"], "modified": "2025-07-15T00:00:00Z", "publisher": {"@type": "org:Organization", "name": "U.S. Geological Survey"}, "spatial": "-106.1389, 40.1747, -105.5511, 40.8928", "theme": ["geospatial"], "title": "Microbial nitrification gene data (ammonia monoxygenase, or amoA) from alpine glacial and snow-fed headwater ecosystems"}