Evaporation from Nonvegetated Surfaces: Surface Aridity Methods and Passive Microwave Remote Sensing Academic Article uri icon


  • The use of remotely sensed near-surface soil moisture for the estimation of evaporation is investigated. Two widely used parameterizations of evaporation, the so-called a and β methods, which use near-surface soil moisture to reduce some measure of potential evaporation, are studied. The near-surface soil moisture is provided by a set of L-and S-band microwave radiometers, which were mounted 13 m above the surface. It is shown that soil moisture measured with a passive microwave sensor in combination with the β method yields reliable estimates of evaporation, whereas the a method is not as robust.

published proceedings

  • Journal of Applied Meteorology

author list (cited authors)

  • Cahill, A. T., Parlange, M. B., Jackson, T. J., O’Neill, P., & Schmugge, T. J

citation count

  • 20

complete list of authors

  • Cahill, Anthony T||Parlange, Marc B||Jackson, Thomas J||O’Neill, Peggy||Schmugge, TJ

publication date

  • September 1999