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In-situ tower atmospheric measurements of carbon dioxide, methane and carbon monoxide mole fraction for the Indianapolis Flux (INFLUX) project, Indianapolis, IN, USA.
Identification_Information:
Citation:
Citation_Information:
Originator:The Pennsylvania State University
Publication_Date:2017
Title:
In-situ tower atmospheric measurements of carbon dioxide, methane and carbon monoxide mole fraction for the Indianapolis Flux (INFLUX) project, Indianapolis, IN, USA.
Other_Citation_Details:
Reference: Miles NL, Richardson SJ, Lauvaux T, Davis KJ, Balashov NV, Deng A, et al.. Quantification of urban atmospheric boundary layer greenhouse gas dry mole fraction enhancements in the dormant season: Results from the Indianapolis Flux Experiment (INFLUX). Elem Sci Anth. 2017;5:27. DOI: http://doi.org/10.1525/elementa.127
Other_Citation_Details:
Reference: Richardson SJ, Miles NL, Davis KJ, Lauvaux T, Martins DK, Turnbull JC, et al. Tower measurement network of in-situ CO2, CH4, and CO in support of the Indianapolis FLUX (INFLUX) Experiment. Elem Sci Anth. 2017;5:59. DOI: http://doi.org/10.1525/elementa.140
Online_Linkage: http://www.datacommons.psu.edu/
Description:
Abstract: 
The Indianapolis Flux Experiment (INFLUX) was designed to develop and evaluate methods for the measurement and modeling of greenhouse gas fluxes from urban environments. Determination of greenhouse gas fluxes and uncertainty bounds is essential for the evaluation of the effectiveness of mitigation strategies. The current INFLUX observation network includes twelve in-situ tower-based, continuous measurements of CO2, CO, and CH4 (although not all species will be measured at all sites), flask sampling of 14CO2 and other trace gases, and periodic aircraft sampling of greenhouse gases and meteorological conditions. A total carbon column observing network (TCCON) column remote sensing station was deployed Aug - Dec 2012. Four of the tower sites include eddy covariance and radiative flux measurements, and a scanning Doppler lidar is located near Site 02. The data from the towers, TCCON, and aircraft measurements are being used in an inverse-modeling approach to yield estimates of the urban area flux at 1 km2 resolution. Additionally, very high space/time resolution estimates of fossil fuel carbon emissions (Hestia project) offer state-of-the-art "bottom up" emissions estimates for the city and its surroundings.
Purpose: 
Measurements are made with Picarro Inc. wavelength-scanned cavity ring down spectroscopic instruments at multiple levels. Hourly averages are reported here, with the minimum and maximum time included in the average indicated. The standard deviation within the averaging window is also reported. All sites measuring CO are dried using a Nafion dryer and a dry air source for purge. As of late May 2013, all sites are dried. A zero-offset correction is applied daily, using data collected from 1 or 2 NOAA-calibrated tanks. Round robin tests using 3 NOAA-calibrated tanks are conducted every 1-2 years. Results were then used to field calibrate (slope and intercept) the instruments. UNCERTAINTY: The atmospheric uncertainty is characterized by the standard deviation during the reported measurement period. The instrument uncertainty is characterized by the standard deviation of the reference gas error for a 31-day period (including 15 days prior to the measurement day and 15 days following the measurement day).
Supplemental_Information: 
 Measurements are made with Picarro Inc. wavelength-scanned cavity ring down spectroscopic instruments at multiple levels.  Hourly averages are reported here, with the minimum and maximum time included in the average indicated.  The standard deviation within the averaging window is also reported.  All sites measuring CO are dried using a Nafion dryer and a dry air source for purge.  As of late May 2013, all sites are dried.  A zero-offset correction is applied daily, using data collected from 1 or 2 NOAA-calibrated tanks.   Round robin tests using 3 NOAA-calibrated tanks are conducted every 1-2 years.  Results were then used to field calibrate (slope and intercept) the instruments.  The atmospheric uncertainty is characterized by the standard deviation during the reported measurement period.  The instrument uncertainty is characterized by the standard deviation of the reference gas error for a 31-day period (including 15 days prior to the measurement day and 15 days following the measurement day).
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Time_Period_Information:
Single_Date/Time:
Calendar_Date:2017
Currentness_Reference: 
publication date
Access_Constraints:None.
Use_Constraints: 
The University excludes any and all implied warranties, including warranties or merchantability and fitness for a particular purpose.
The University makes no warranty or representation, either express or implied, with respect to the FILES or accompanying documentation, including its quality, performance, merchantability, or fitness for a particular purpose. The FILES and documentation are provided "as is" and the USER assumes the entire risk as to its quality and performance.
The University will not be liable for any direct, indirect, special, incidental, or consequential damages arising out of the use or inability to use the FILES or any accompanying documentation.
The USER is granted permission to translate and add value to the FILES for the use of the FILES on its computer hardware; provided, however, that the USER annually notify the University of any customizing or value-adding work done.

Permission to download this data does not grant permission to use the information contained in that data for publication or any commercial use.  Please request permission for such use by e-mailing the Penn State group (co2data@meteo.psu.edu) before any commercial use or publication. If you have any questions about the use of these data or the Fair Use policy, please contact a member of the group at co2@meteo.psu.edu.
Point_of_Contact:
Contact_Information:
Contact_Organization_Primary:
Contact_Organization:Penn State
Contact_Person:Natasha Miles
Contact_Address:
Address_Type:mailing and physical address
Address: 
Walker Building
City:University Park
State_or_Province:Pennsylvania
Postal_Code:16802
Country:USA
Contact_Electronic_Mail_Address:nmiles@psu.edu
Contact Instructions: 
Natasha Miles (Department of Meteorology and Atmospheric Science, The Pennsylvania State University) 
Scott Richardson (Department of Meteorology and Atmospheric Science, The Pennsylvania State University) 
Kenneth Davis (Department of Meteorology and Atmospheric Science, The Pennsylvania State University) 
Bernd Haupt (Earth and Environmental Systems Institute, The Pennsylvania State University)
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Distribution_Information:
Distributor:
Contact_Information:
Contact_Organization_Primary:
Contact_Organization:Penn State Data Commons
Contact_Address:
Address_Type:mailing and physical address
Address: 
115 Land and Water Building
City:University Park
State_or_Province:Pennsylvania
Postal_Code:16802
Country:United States
Contact_Voice_Telephone:(814) 865 - 8792
Contact_Electronic_Mail_Address:datacommons@psu.edu
Distribution_Liability: 
The USER shall indemnify, save harmless, and, if requested, defend those parties involved with the development and distribution of this data, their officers, agents, and employees from and against any suits, claims, or actions for injury, death, or property damage arising out of the use of or any defect in the FILES or any accompanying documentation. Those parties involved with the development and distribution excluded any and all implied warranties, including warranties or merchantability and fitness for a particular purpose and makes no warranty or representation, either express or implied, with respect to the FILES or accompanying documentation, including its quality, performance, merchantability, or fitness for a particular purpose. The FILES and documentation are provided "as is" and the USER assumes the entire risk as to its quality and performance. Those parties involved with the development and distribution of this data will not be liable for any direct, indirect, special, incidental, or consequential damages arising out of the use or inability to use the FILES or any accompanying documentation.
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Metadata_Reference_Information:
Metadata_Date:2017
Metadata_Contact:
Contact_Information:
Contact_Organization_Primary:
Contact_Organization:Penn State Data Commons
Contact_Position:Metadata Coordinator
Contact_Address:
Address_Type:mailing address
Address: 
115 Land and Water Building
City:University Park
State_or_Province:Pennsylvania
Postal_Code:16802
Country:United States
Contact_Voice_Telephone:814-865-8792
Contact_Electronic_Mail_Address:datacommons@psu.edu
Metadata_Standard_Name:FGDC Content Standards for Digital Geospatial Metadata
Metadata_Standard_Version:FGDC-STD-001-1998
Metadata_Time_Convention:local time
Metadata_Extensions:
Online_Linkage: http://www.esri.com/metadata/esriprof80.html
Profile_Name:ESRI Metadata Profile
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