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This data set contains percent soil moisture (by weight) (and/or water content if there is a moss/humus layers measured from aircraft using a terrestrial gamma ray instrument. There is also data that indicates the location of the aircraft at the time it collected the terrestrial gamma ray data for the various flight lines and bins. The location information contains a list of coordinates that indicate the path of the aircraft for each bin. The data were collected during four time periods from September 1993 to September 1994 over the Southern Study Area (SSA) and two time periods from February to August 1994 over the Northern Study Area (NSA).

A guide document which includes more information about this data set can be found at

ORNL DAAC maintains information on the entire BOREAS Project.

Data Citation:

Cite this data set as follows:

Peck, E. L., and T. Carroll. 1998. BOREAS HYD-06 Aircraft Gamma Ray Soil Moisture. Data set. Available on-line [] from Oak Ridge National Laboratory Distributed Active Archive Center, Oak Ridge, Tennessee, U.S.A. doi:10.3334/ORNLDAAC/270.


Carroll, T. R. 1987. Operational remote sensing of snow water equivalent and soil moisture in the United States using natural terrestrial gamma radiation, J. Int., Asso. Hydro. Sci., IAHS Pub. 166: 213-223.

Carroll, T.R., and M. Allen, 1988. Airborne gamma radiation snow water measurements and soil moisture measurements and satellite areal extent of snow cover measurements: A user's guide, Version 3.0., Office of Hydrology, National Weather Service, Minneapolis, MN.

Fritzsche, A.E. 1979. The development of an airborne gamma radiation system for snow surveys. Remote sensing of snow and snow moisture by nuclear techniques, WMO Workshop, Voss, Norway, April 23-27.

Carroll, T.R. 1981. Airborne soil moisture measurements using natural terrestrial gamma radiation. Soil Sci. 132:358-366.

Carroll, T.R., E.L. Peck, and D.M. Lipiniski, 1988. Airborne time-series measurements of soil moisture using terrestrial gamma radiation. Proc. Ann. Conf. Am. Soc. Photogram. Remote Sens., St. Louis, MO.

Peck, E.L., 1992. Airborne Gamma Radiation Measurements of Soil Moisture During FIFE Activities and Results, Hydex Final Report, NASA Contract NAS5-30959, April. In FIS.

Peck, E.L., T.R. Carroll, 1995. High Cosmic Radiation in BOREAS Area, Presented at BOREAS Conference, Ellicott City, MD, 29-31 March, 6 pg, 2 charts, In BORIS

Peck, E.L., T.R. Carroll, and D.M. Lipiniski, 1990. Airborne gamma radiation soil moisture measurements over short flight lines. Symp. On the First ISLSCP Field Experiment, Anaheim, CA, American Meteorological Soc., Boston, Massachusetts, p. 79-84.

Peck, E. L., T. R. Carroll, and D. M. Lipinski, 1992. Airborne Soil Moisture Measurements for First International Satellite Land Surface Climatology Program Field Experiment, Jour. Geophys. Res. 97, No. D17, p. 18,961-18,967, Nov 30.

Peck, E. L., and A. S. Hope, 1995. Spatial Patterns of Soil Moisture for the FIFE Study Area Derived from Remotely Sensed and Ground Data. Submitted for 2nd FIFE Special Issue of American Geophysical Research Journal of Geophysical Research, Available in FIS.

Peck, E. L., L. W. Larson, F. K. Farnsworth, and T. L. Dietrich, 1975. Comparison of Aerial Passive Gamma and Passive Microwave Techniques for Measurement of Soil Moisture, Proc. 10th International Symp. On Remote Sensing of the Environment, Environment Res. Institute of Michigan, Ann Arbor, MI, Oct.

Sellers, P., F. Hall. 1994. Boreal Ecosystem-Atmosphere Study: Experiment Plan. Version 1994-3.0, NASA BOREAS Report (EXPLAN 94).

Sellers, P., F. Hall. 1996. Boreal Ecosystem-Atmosphere Study: Experiment Plan. Version 1996-2.0, NASA BOREAS Report (EXPLAN 96).

Sellers, P., F. Hall, K.F. Huemmrich. 1996. Boreal Ecosystem-Atmosphere Study: 1994 Operations. NASA BOREAS Report (OPS DOC 94).

Sellers, P., F. Hall, K.F. Huemmrich. 1997. Boreal Ecosystem-Atmosphere Study: 1996 Operations. NASA BOREAS Report (OPS DOC 96).

Sellers, P., F. Hall, H. Margolis, B. Kelly, D. Baldocchi, G. den Hartog, J. Cihlar, M.G. Ryan, B. Goodison, P. Crill, K.J. Ranson, D. Lettenmaier, and D.E. Wickland. 1995. The boreal ecosystem-atmosphere study (BOREAS): an overview and early results from the 1994 field year. Bulletin of the American Meteorological Society. 76(9): 1549-1577.

Sellers, P., F. Hall. 1997. BOREAS Overview Paper. JGR Special Issue (in press).

Data Format:

For information on Parameter/Variable Names, Variable Description/Definition, Units of Measurement, and Data File Format see the companion file

Document Information:

02-Jun-1998 (data set citation revised on 13-Sep-2002)

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