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Description

The Bowen Ratio Surface Flux Observations (KSU) Data Set contains surface flux measurements made at selected sites within the FIFE area. The sites were equipped with Bowen ratio equipment that was operated by several different groups. Each surface flux station was capable of measuring the fluxes of net radiation, latent heat and sensible heat. The Bowen ratio stations measured the soil heat flux as well. The components of the energy balance were determined with the Bowen Ratio Energy Balance (BREB) method. The BREB is a combination of the transport and the energy balance equations. The surface flux and micrometeorological measurements available in this data set were collected from 23 locations with 27 site identifiers from 1987 through 1989. Thirteen of these locations were instrumented with stationary bowen ratio systems which collected daily measurements for months. These systems were all located in the northwest quadrant of the FIFE study area within the Konza Prairie Natural Research Area. Ten locations were instrumented in 1987 for a few days at a time with a portable Bowen ratio system. This roving system visited all but the southeast quadrant of the FIFE study area.

Product Summary

Platforms
FIELD INVESTIGATION
Instruments
THERMOCOUPLES ,
Bowen Ratio Devices ,
HYGROMETERS ,
RAIN GAUGES ,
SOIL HEAT FLUX TRANSDUCER ,
SOIL MOISTURE PROBE ,
SOIL TEMPERATURE PROBE ,
NET RADIOMETERS ,
ANEMOMETERS
Spatial Extent

N: 39.11 S: 38.98 E: -96.45 W: -96.61

Coordinate System
CARTESIAN
Granule Spatial Representation
CARTESIAN
Temporal Extent
1987-05-29 to 1989-08-13
Data Partner
THE OAK RIDGE NATIONAL LABORATORY (ORNL) DISTRIBUTED ACTIVE ARCHIVE CENTER (DAAC) (ORNL_DAAC)
Concept ID
C2979992276-ORNL_CLOUD
Data State
COMPLETE
Number of Files/Granules
1138
Processing Level
3
Published
Updated
Science Keywords
Soil Heat Budget ,
Soil Moisture/Water Content ,
Soil Temperature ,
Heat Flux ,
Net Radiation ,
Solar Radiation ,
Surface Temperature ,
Air Temperature ,
Water Vapor ,
Surface Winds ,
Precipitation Amount ,
Soil Heat Budget ,
Soil Moisture/Water Content ,
Soil Temperature

Citation

Citation is critically important for dataset documentation and discovery. This dataset is openly shared, without restriction, in accordance with the EOSDIS Data Use and Citation Guidance.

Copy Citation

Asrar, G., & Kanemasu, E. T. (1994). Bowen Ratio Surface Flux: KSU (FIFE) (Version 1). ORNL Distributed Active Archive Center. https://doi.org/10.3334/ORNLDAAC/21 Date Accessed: 2026-04-30

Documents

Publications Citing This Dataset

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Title Year Author Topic
An analytical model for estimating canopy transpiration and carbon assimilation fluxes based on canopy light-use efficiency Anderson, M.C., Norman, J.M., Meyers, T.P., Diak, G.R. Precipitation Rate, Photosynthetically Active Radiation, Surface Winds, Water Vapor, Air Temperature, Net Radiation, Heat Flux, Atmospheric Carbon Dioxide, Soil Temperature, Soil Heat Budget, Soil Moisture/Water Content, Soil Temperature, Solar Radiation, Surface Temperature, Precipitation Amount, Soil Heat Budget, Soil Moisture/Water Content
Equilibrium Evaporation and Positive Evaporation-Surface Temperature Relationships Across a Grassland Qualls, Russell J., Wagstaff, Mark, Crago, Richard D. Soil Temperature, Atmospheric Pressure Measurements, Surface Pressure, Longwave Radiation, Net Radiation, Reflectance, Shortwave Radiation, Surface Temperature, Air Temperature, Surface Winds, Precipitation Amount, Photosynthetically Active Radiation, Soil Heat Budget, Heat Flux, Solar Radiation, Virtual Temperature, Water Vapor, Soil Heat Budget, Soil Temperature, Soil Moisture/Water Content, Soil Moisture/Water Content, Atmospheric Carbon Dioxide, Atmospheric Ozone
Phenological influences on the albedo of prairie grassland and crop fields Song, J. Soil Temperature, Atmospheric Pressure Measurements, Surface Pressure, Longwave Radiation, Net Radiation, Reflectance, Shortwave Radiation, Surface Temperature, Air Temperature, Surface Winds, Precipitation Amount, Photosynthetically Active Radiation, Soil Heat Budget, Soil Moisture/Water Content, Heat Flux, Solar Radiation, Water Vapor, Soil Heat Budget, Soil Moisture/Water Content, Soil Temperature
Linking Boundary Layer Circulations and Surface Processes during FIFE 89. Part II: Maintenance of Secondary Circulation. Wai, Mickey M-K., Smith, Eric A. Atmospheric Pressure Measurements, Virtual Temperature, Surface Winds, Soil Moisture/Water Content, Soil Porosity, Respiration Rate, Soil Chemistry, Soil Respiration, Soil Compaction, Soil Temperature, Soil Impedance, Geopotential Height, Air Temperature, Atmospheric Ozone, Surface Pressure, Boundary Layer Temperature, Cloud Frequency, Soil Heat Budget, Soil Temperature, Atmospheric Carbon Dioxide, Heat Flux, Net Radiation, Solar Radiation, Surface Temperature, Water Vapor, Soil Heat Budget, Reflectance, Longwave Radiation, Shortwave Radiation, Precipitation Amount, Photosynthetically Active Radiation, Hydraulic Conductivity, Soil Depth, Leaf Characteristics, Planetary Boundary Layer Height, Soil Moisture/Water Content, Organic Matter, Soil Color, Soil Horizons/Profile, Soil Structure, Thermal Conductivity
Sensible Heat Flux Estimation over the FIFE Site by Neural Networks. Abareshi, Behzad, Schuepp, Peter H. Soil Heat Budget, Soil Temperature, Atmospheric Ozone, Heat Flux, Surface Temperature, Air Temperature, Water Vapor, Surface Winds, Soil Heat Budget, Soil Temperature, Atmospheric Carbon Dioxide, Net Radiation, Solar Radiation, Virtual Temperature, Soil Moisture/Water Content, Precipitation Amount, Soil Moisture/Water Content, Atmospheric Pressure Measurements, Surface Pressure, Longwave Radiation, Reflectance, Shortwave Radiation, Photosynthetically Active Radiation, Outgoing Longwave Radiation
A two-source approach for estimating turbulent fluxes using multiple angle thermal infrared observations Kustas, William P., Norman, John M. Soil Heat Budget, Soil Temperature, Heat Flux, Net Radiation, Solar Radiation, Surface Temperature, Air Temperature, Virtual Temperature, Water Vapor, Surface Winds, Soil Heat Budget, Soil Temperature, Atmospheric Carbon Dioxide, Soil Moisture/Water Content, Precipitation Amount, Soil Moisture/Water Content, Canopy Transmittance, Leaf Area Index (LAI), Reflectance, Transmittance, Photosynthetically Active Radiation, Atmospheric Pressure Measurements, Surface Pressure, Longwave Radiation, Shortwave Radiation, Reflectance, Solar Irradiance, Land Surface Temperature, Leaf Characteristics, Photosynthesis, Vegetation Species, Atmospheric Ozone
Comparison of the Evaporative Fraction and the Priestley-Taylor for Parameterizing Daytime Evaporation Crago, Richard D. Soil Heat Budget, Soil Temperature, Heat Flux, Net Radiation, Solar Radiation, Surface Temperature, Air Temperature, Virtual Temperature, Water Vapor, Surface Winds, Soil Heat Budget, Soil Temperature, Soil Moisture/Water Content, Precipitation Amount, Soil Moisture/Water Content, Atmospheric Pressure Measurements, Longwave Radiation, Outgoing Longwave Radiation
Linking Boundary-Layer Circulations and Surface Processes during FIFE 89. Part I: Observational Analysis. Smith, Eric A., Wai, Mickey M-K., Cooper, Harry J., Rubes, Michael T., Hsu, Ann Soil Temperature, Atmospheric Pressure Measurements, Surface Pressure, Longwave Radiation, Net Radiation, Reflectance, Shortwave Radiation, Surface Temperature, Air Temperature, Surface Winds, Precipitation Amount, Photosynthetically Active Radiation, Soil Heat Budget, Soil Moisture/Water Content, Heat Flux, Solar Radiation, Water Vapor, Soil Heat Budget, Soil Moisture/Water Content, Soil Temperature, Atmospheric Carbon Dioxide, Atmospheric Ozone, Solar Irradiance, Land Surface Temperature
Atmosphere-biosphere exchange flux of carbon dioxide in a tallgrass prairie modeled with satellite spectral data Gao, W. Soil Heat Budget, Soil Moisture/Water Content, Soil Temperature, Heat Flux, Net Radiation, Solar Radiation, Surface Temperature, Air Temperature, Water Vapor, Surface Winds, Precipitation Amount, Soil Heat Budget, Soil Moisture/Water Content, Soil Temperature, Vegetation Species, Vegetation Cover, Solar Irradiance, Reflectance, Canopy Transmittance, Leaf Area Index (LAI), Photosynthetically Active Radiation
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