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CSU-Radarmet / CSU_RadarTools

A module of independent functions to do precipitation retrievals from polarimetric radar data
GNU General Public License v2.0
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Added dbZ threshold coupled to Kdp threshold for rain estimators using Kdp to eliminate noise at low reflectivity. #49

Closed bdolan44 closed 7 years ago

tjlang commented 7 years ago

I thought we already had a Z threshold on this. Good catch!

bdolan44 commented 7 years ago

We removed it for the tropical algorithm because we thought it was redundant (when you meet 0.3 Kdp, dBZ should be above 38) but turns out real Kdp is noisy and therefore you get localized huge rain rates where Kdp is above the threshold but reflectivity is really low (e.g. 10 dBZ).

tjlang commented 7 years ago

Gotcha, yeah KDP is never that well behaved, especially FIR-based KDP! :)