Phase: RAMIIVFoliage absorption
fabs_fol for HET16_SRF_000_00 testcase.
fabs_fol for HET16_SRF_000_20 testcase.
fabs_fol for HET16_SRF_000_50 testcase.
fabs_fol for HET16_SRF_090_20 testcase.
fabs_fol for HET16_SRF_090_50 testcase.