Journal cover Journal topic
Hydrology and Earth System Sciences An interactive open-access journal of the European Geosciences Union
Journal topic

Journal metrics

IF value: 5.153
IF5.153
IF 5-year value: 5.460
IF 5-year
5.460
CiteScore value: 7.8
CiteScore
7.8
SNIP value: 1.623
SNIP1.623
IPP value: 4.91
IPP4.91
SJR value: 2.092
SJR2.092
Scimago H <br class='widget-line-break'>index value: 123
Scimago H
index
123
h5-index value: 65
h5-index65
Volume 3, issue 3
Hydrol. Earth Syst. Sci., 3, 439–444, 1999
https://doi.org/10.5194/hess-3-439-1999
© Author(s) 1999. This work is licensed under
the Creative Commons Attribution-NonCommercial-ShareAlike 2.5 License.
Hydrol. Earth Syst. Sci., 3, 439–444, 1999
https://doi.org/10.5194/hess-3-439-1999
© Author(s) 1999. This work is licensed under
the Creative Commons Attribution-NonCommercial-ShareAlike 2.5 License.

  30 Sep 1999

30 Sep 1999

Research Note:The comparison of two models that determine the effects of a vegetation canopy on passive microwave emission

E. J. Burke1,*, J.-P. Wigneron2, and R. J. Gurney3 E. J. Burke et al.
  • 1Institute of Hydrology, Crowmarsh Gifford, Wallingford, Oxon, OX10 8BB, UK
  • 2INRA, Unite de bioclimatologie, Dormaine Saint Paul, Site Agroparc, 84914 Avignon Cedex 9, France
  • 3Environmental Systems Science Centre, University of Reading, Whiteknights, Reading, RG6 6AL, UK
  • *email for corresponding author: eleanor@hwr.arizona.edu.

Abstract. Two contrasting models are used to account for the effects of vegetation on microwave emission from the soil. These are: a simple model which requires two empirically derived parameters as input data (optical depth and single scattering albedo); and a complex discrete model which requires a detailed description of all of the components of the vegetation canopy. Both models account effectively for the vegetation, although the simple model takes a fraction of the computation time compared to the discrete model. However, the simple model was fitted to the data, whereas the discrete model used measured parameters as input. In addition to predicting the microwave brightness temperature, the discrete model also calculates the optical depth and single scattering albedo. These calculated values were in agreement with those fitted using the simple model. Therefore, it is suggested that the discrete model could be used to calculate the input parameters for the simple model.

Publications Copernicus
Download
Citation