TITLE: Eddy covariance flux tower observations of the urban environment in Indianapolis, Indiana
PROJECT: Indianapolis Flux Experiment (INFLUX)
DATES: 2013 and August 2017 – present
ABSTRACT: Urban canopy models have been developed over the past decade in order to replicate the unique interactions between urban environments and the atmosphere. Mesoscale weather models have added these urban canopy models but these models still have issues when trying to simulate the urban environment on small scales. It is important to accurately simulate the meteorological interaction characteristics of urban environments. These interactions typically include but are not limited to: increases in atmospheric boundary layer (ABL) height, increases in surface air temperature, decreases in surface water vapor flux, and an increase in the land surface temperature, all relative to a rural, more heavily vegetated environment. Our goal is to evaluate the modeled meteorology with observations, identify discrepancies, and identify ways to reduce these discrepancies, through the use of flux observations.
For data from 2013 in a mixed/suburban area:
COMMENTS: Flux data from INFLUX concentration Tower 02, including surface energy and CO2 fluxes, is available for 2013. In order to calculate the components of surface energy flux, high frequency wind speed (in the vertical and horizontal planes), virtual temperature, and water vapor concentration are measured. The instruments, which are mounted 30 m above ground level, include four-component (incoming and outgoing shortwave and longwave radiation) radiation sensors, three-dimensional sonic anemometers (CSAT-3), and LI-COR 7500 open-path infrared CO2 and H2O gas analyzers.
Thank you for your interest in INFLUX data! To access eddy flux data from 2013 measured at Tower 02, please go to the PSU Data Commons, keyword INFLUX. Please contact one of the below contacts to inform us of your intended use and publication plans (if any), and so we have your contact in case of changes to the dataset. Thanks!
For data from August 2017 – present measured at agricultural and urban grass sites in and near Indianapolis:
COMMENTS: CO2 flux data measured at agricultural sites and urban grass sites in and near Indianapolis is available from August 2017 – present. The instruments, which are mounted 3 m above ground level, include three-dimensional sonic anemometers (CSAT-3), and LI-COR 7500 open-path infrared CO2 and H2O gas analyzers.
Thank you for your interest in INFLUX data! To access eddy flux data for August 2017 – present, please click here. Creation of this data set was supported primarily by the National Institute of Standards and Technology (Penn State, Project # 70NANB10H245). Please contact one of the below contacts to inform us of your intended use and publication plans (if any), and so we have your contact in case of changes to the dataset. We will send you the login credentials. Thanks!