Kidney Beans at 9.89 GHz ?

Is 9.89 gigaherz the optimal frequency at which to scan kidney bean crops in order to obtain ground-based multi-temporal, multi-angle and co-polarized scatterometer X-band data?

Your opinion on that may or may not change when you read the study:

Estimation of kidney bean crop variables using ground-based scatterometer data at 9.89 GHz“, Rajendra Prasada, International Journal of Remote Sensing, vol. 32, no. 1, January 2011, pp. 31-48. (Thanks to investigator Tom Gill for bringing this to our attention.) The author, at Banaras Hindu University, Varanasi, India, reports:

“Crop variables were estimated using ground-based multi-temporal, multi-angle and co-polarized scatterometer X-band data at 9.89 GHz. An outdoor crop-bed was prepared to observe the scatterometer response at VV and HH polarizations in the incidence angle range from 20° to 70°. Soil moisture (SM) and crop variables, including leaf area index (LAI), leaf water area index (LWAI) and plant height (PH), of a kidney bean crop at different stages of growth were measured. The aim of this study was to estimate the crop variables and to determine how the variables interact with microwaves.”

[The photo shown here — possibly unrelated — pertains to kidney beans that may have been improperly scanned.]

Improbable Research