DAP4 Data Request Form ACTAMERICA-PICARRO_Ground-Crawfordsville_20170426_R0_thru20171231.nc

dataset: ACTAMERICA-PICARRO_Ground-Crawfordsville_20170426_R0_thru20171231.nc
(dmr)

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Data URL
Global Attributes
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      • NC_GLOBAL
        • project: Indianapolis flux project (INFLUX) (Type is String)
        • funding: National Institute of Standards and Technology (NIST) (Type is String)
        • station_name: INFLUX SITE 14 - Crawfordsville (Type is String)
        • observation_category: Air sampling observation (Type is String)
        • country_territory: USA (Type is String)
        • contributor: PSU (Type is String)
        • number_of_sampling_heights: 1 (Type is String)
        • website: sites.psu.edu/influx/site-information/site-14-crawfordsville/ (Type is String)
        • parameter: CO2 / CO (Type is String)
        • time_period: 2017 (Type is String)
        • time_interval: hourly averages (Type is String)
        • measurement_method: Cavity Ring Down Spectroscopy (PICARRO, INC.) (Type is String)
        • sampling_type: in situ (Type is String)
        • time_zone: EST; data reported in UTC (Type is String)
        • reference_scale: Traceable to NOAA scale (Type is String)
        • title: In-situ tower greenhouse gas data (The Pennsylvania State University) at station Site 14 from 2017-04-26 to 2017-12-31 (Type is String)
        • ancillary_file_source: site14_level1_2017_conc.dat (Type is String)
        • project_info: ACT-America (Type is String)
        • institution: Oak Ridge National Laboratory (ORNL) Distributed Active Archive Center (DAAC) (Type is String)
        • contact_info: https://daac.ornl.gov/ . E-mail: uso@daac.ornl.gov (Type is String)
        • doi: 10.3334/ORNLDAAC/1568 (Type is String)
        • stipulations_on_use: Data available with no restrictions. (Type is String)
        • featureType: timeSeries (Type is String)
        • Conventions: CF-1.6 (Type is String)
        • comment: Measurements are made with Picarro Inc. wavelength-scanned cavityring down spectroscopic instruments at multiple levels. Hourly averages arereported here, with the minimum and maximum time included in the averageindicated. The standard deviation within the averaging window is alsoreported. All sites measuring CO are dried using a Nafion dryer and a dry airsource for purge. As of late May 2013, all sites are dried. A zero-offsetcorrection is applied daily, using data collected from 1 or 2 NOAA-calibratedtanks. Round robin tests using 3-4 NOAA-calibrated tanks are conducted every1-2 years. Results are then used to field calibrate the instruments (slope andintercept correction). (Type is String)
        • abstract: The Indianapolis Flux Experiment (INFLUX) was designed to developand evaluate methods for the measurement and modeling of greenhouse gas fluxesfrom urban environments. Determination of greenhouse gas fluxes anduncertainty bounds is essential for the evaluation of the effectiveness ofmitigation strategies. The INFLUX observation network includes twelve in-situtower-based, continuous measurements of CO2, a subset of five of whichadditionally measure CO, and a subset of nine of which additionally measure CH4.Flask sampling of 14CO2 and other trace gases occurs at six of the towers, andperiodic aircraft flights measuring greenhouse gases and meteorologicalconditions are conducted. A total carbon column observing network (TCCON)column remote sensing station was deployed Aug - Dec 2012. Four of the towersites include eddy covariance and radiative flux measurements, and a scanningDoppler lidar is located near Site 02. The data from the towers, TCCON, andaircraft measurements are being used in an inverse-modeling approach to yieldestimates of the urban area flux at 1 km2 resolution. Additionally, very highspace/time resolution estimates of fossil fuel carbon emissions (Hestia project)offer state-of-the-art bottom-up emissions estimates for the city and itssurroundings. (Type is String)
        • location: Tower base - 39.9971 N, 86.7396 W, 264 m ASL (Type is String)
Global Dimensions
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      [ /time = 0..5973 ]
      [ /nv = 0..1 ]
Variables
site_name(Type is String)
  • attributes
    • cf_role: timeseries_id (Type is String)
    • string_length: 14 (Type is Int32)
time[ /time= 0..5973] (Type is Float64)
  • attributes
    • units: hours since 2015-01-01 00:00:00.0 UTC (Type is String)
    • calendar: standard (Type is String)
    • standard_name: time (Type is String)
    • bounds: time_bnds (Type is String)
time_bnds[ /time= 0..5973] [ /nv= 0..1] (Type is Float64)
no attributes
longitude(Type is Float64)
  • attributes
    • standard_name: longitude (Type is String)
    • long_name: site longitude (Type is String)
    • units: degrees_east (Type is String)
latitude(Type is Float64)
  • attributes
    • standard_name: latitude (Type is String)
    • long_name: site latitude (Type is String)
    • units: degrees_north (Type is String)
sampling_height(Type is Float64)
  • attributes
    • long_name: height above ground level (Type is String)
    • standard_name: height (Type is String)
    • units: m (Type is String)
    • positive: up (Type is String)
    • axis: Z (Type is String)
altitude(Type is Float64)
  • attributes
    • long_name: height above sea level (Type is String)
    • standard_name: height_above_mean_sea_level (Type is String)
    • units: m (Type is String)
Time_start[ /time= 0..5973] (Type is Float64)
  • attributes
    • _FillValue: -999.0000000000000 (Type is Float64)
    • units: d (Type is String)
    • long_name: minimum fractional day of year of the measurement (Type is String)
Time_stop[ /time= 0..5973] (Type is Float64)
  • attributes
    • _FillValue: -999.0000000000000 (Type is Float64)
    • units: d (Type is String)
    • long_name: maximum fractional day of year of the measurement (Type is String)
Year[ /time= 0..5973] (Type is Int32)
  • attributes
    • _FillValue: -999 (Type is Int32)
    • units: year (Type is String)
    • long_name: year of the measurement (Type is String)
DOY[ /time= 0..5973] (Type is Int32)
  • attributes
    • _FillValue: -999 (Type is Int32)
    • units: d (Type is String)
    • long_name: day of year of the measurement (Type is String)
Hour[ /time= 0..5973] (Type is Int32)
  • attributes
    • _FillValue: -999 (Type is Int32)
    • units: hour (Type is String)
    • long_name: nominal hour of the measurement (Type is String)
CO2[ /time= 0..5973] (Type is Float64)
  • attributes
    • _FillValue: -999.0000000000000 (Type is Float64)
    • units: 1e-6 (Type is String)
    • long_name: dry CO2 mixing ratio average between Time_start and Time_stop in parts per million by volume (Type is String)
    • coordinates: time latitude longitude altitude site_name (Type is String)
    • ancillary_variables: Data_Flag (Type is String)
CO2_std[ /time= 0..5973] (Type is Float64)
  • attributes
    • _FillValue: -999.0000000000000 (Type is Float64)
    • units: 1e-6 (Type is String)
    • long_name: dry CO2 mixing ratio standard deviation between Time_start and Time_stop in parts per million by volume (Type is String)
    • coordinates: time latitude longitude altitude site_name (Type is String)
    • ancillary_variables: Data_Flag (Type is String)
CO2_unc[ /time= 0..5973] (Type is Float64)
  • attributes
    • _FillValue: -999.0000000000000 (Type is Float64)
    • units: 1e-6 (Type is String)
    • long_name: estimated CO2 measurement uncertainty in parts per million by volume (Type is String)
    • coordinates: time latitude longitude altitude site_name (Type is String)
    • ancillary_variables: Data_Flag (Type is String)
CH4[ /time= 0..5973] (Type is Float64)
  • attributes
    • _FillValue: -999.0000000000000 (Type is Float64)
    • units: 1e-9 (Type is String)
    • long_name: dry CH4 mixing ratio average between Time_start and Time_stop in parts per billion by volume (Type is String)
    • coordinates: time latitude longitude altitude site_name (Type is String)
    • ancillary_variables: Data_Flag (Type is String)
CH4_std[ /time= 0..5973] (Type is Float64)
  • attributes
    • _FillValue: -999.0000000000000 (Type is Float64)
    • units: 1e-9 (Type is String)
    • long_name: dry CH4 mixing ratio standard deviation between Time_start and Time_stop in parts per billion by volume (Type is String)
    • coordinates: time latitude longitude altitude site_name (Type is String)
    • ancillary_variables: Data_Flag (Type is String)
CH4_unc[ /time= 0..5973] (Type is Float64)
  • attributes
    • _FillValue: -999.0000000000000 (Type is Float64)
    • units: 1e-9 (Type is String)
    • long_name: estimated CH4 measurement uncertainty in parts per billion by volume (Type is String)
    • coordinates: time latitude longitude altitude site_name (Type is String)
    • ancillary_variables: Data_Flag (Type is String)
CO[ /time= 0..5973] (Type is Float64)
  • attributes
    • _FillValue: -999.0000000000000 (Type is Float64)
    • units: 1e-9 (Type is String)
    • long_name: dry CO mixing ratio average between Time_start and Time_stop in parts per billion by volume (Type is String)
    • coordinates: time latitude longitude altitude site_name (Type is String)
    • ancillary_variables: Data_Flag (Type is String)
CO_std[ /time= 0..5973] (Type is Float64)
  • attributes
    • _FillValue: -999.0000000000000 (Type is Float64)
    • units: 1e-9 (Type is String)
    • long_name: dry CO mixing ratio standard deviation between Time_start and Time_stop in parts per billion by volume (Type is String)
    • coordinates: time latitude longitude altitude site_name (Type is String)
    • ancillary_variables: Data_Flag (Type is String)
CO_unc[ /time= 0..5973] (Type is Float64)
  • attributes
    • _FillValue: -999.0000000000000 (Type is Float64)
    • units: 1e-9 (Type is String)
    • long_name: estimated CO measurement uncertainty in parts per billion by volume (Type is String)
    • coordinates: time latitude longitude altitude site_name (Type is String)
    • ancillary_variables: Data_Flag (Type is String)
Data_Flag[ /time= 0..5973] (Type is Int32)
  • attributes
    • _FillValue: -999 (Type is Int32)
    • long_name: data quality indicator (Type is String)
    • standard_name: status_flag (Type is String)
    • valid_range: 0, 1 (Type is Int32)
    • flag_values: 0, 1 (Type is Int32)
    • flag_meanings: not_recommended_for_use no_known_problems (Type is String)
H2O[ /time= 0..5973] (Type is Float64)
  • attributes
    • _FillValue: -999.0000000000000 (Type is Float64)
    • units: 1e-2 (Type is String)
    • long_name: water vapor mixing ratio average of the dried sample between Time_start and Time_stop in parts per hundred by volume (Type is String)
    • coordinates: time latitude longitude altitude site_name (Type is String)
    • ancillary_variables: Data_Flag (Type is String)
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