------------------------------------------------------------------- NEXRAD Precipitation Bias Calculated from the Multi Precipitation Estimator for RADARS in the SERFC Area for 2013-05-18 10:00:00 GMT. ------------------------------------------------------------------- Radar ID Bias Based on #Pairs /Gage Sum /Radar Sum Z=(a)R^(b) ZR type ----- ---- -------- --------------------------- ---------- ------- AKQ 1.00 0001 hrs 13 / 3.99 / 4.00 200 1.6 Marshall-Palmer AMX 0.93 0168 hrs 41 / 4.17 / 4.46 300 1.4 Convective BMX 1.15 ***** Manually Edited Bias ***** BYX 0.86 0168 hrs 21 / 2.84 / 3.29 300 1.4 Convective CAE 1.46 0168 hrs 135 / 2.57 / 1.76 300 1.4 Convective CLX 1.43 0168 hrs 260 / 2.37 / 1.65 300 1.4 Convective DGX 1.20 ***** Manually Edited Bias ***** EOX 1.18 0168 hrs 162 / 2.28 / 1.94 300 1.4 Convective EVX 1.29 0168 hrs 100 / 2.74 / 2.12 300 1.4 Convective FCX 1.20 ***** Manually Edited Bias ***** FFC 1.27 Current 59 / 1.79 / 1.41 300 1.4 Convective GSP 1.33 Current 91 / 2.93 / 2.19 300 1.4 Convective GWX 1.03 0010 hrs 13 / 2.68 / 2.61 300 1.4 Convective HTX 1.40 Current 48 / 2.74 / 1.95 300 1.4 Convective JAX 1.10 0168 hrs 280 / 2.39 / 2.18 300 1.4 Convective JGX 1.20 ***** Manually Edited Bias ***** LTX 1.17 0168 hrs 55 / 2.51 / 2.16 300 1.4 Convective MHX 0.91 0168 hrs 54 / 1.98 / 2.17 300 1.4 Convective MLB 1.30 0168 hrs 94 / 3.77 / 2.90 300 1.4 Convective MOB 0.74 0168 hrs 197 / 3.60 / 4.89 300 1.4 Convective MRX 1.48 Current 18 / 2.58 / 1.74 300 1.4 Convective MXX 1.55 ***** Manually Edited Bias ***** NQA 1.57 0010 hrs 28 / 3.00 / 1.90 300 1.4 Convective OHX 2.32 0001 hrs 21 / 2.77 / 1.19 300 1.4 Convective RAX 1.04 0168 hrs 222 / 2.30 / 2.22 300 1.4 Convective TBW 1.12 0168 hrs 76 / 3.08 / 2.75 300 1.4 Convective TLH 1.23 0168 hrs 135 / 2.39 / 1.95 300 1.4 Convective VAX 1.20 ***** Manually Edited Bias ***** * The bias values are calculated from the MPE (Multi Precipitation Estimator) which uses 'pairs' of RADAR and rain gage data. MPE requires at least 10 gage/radar pairs in order to calculate a bias. The 'Based on' column shows how far in the past MPE went back to get the required number of pairs. Current refers to the current hour. * The final three columns show the number of pairs used to calculate the bias, and the sum of the gage and radar accumulations respectively. Bias above 1.00 indicates RADAR is under estimating precipitation. Bias below 1.00 indicates RADAR is over estimating precipitation. A bias of over 1.50 or under 0.50 may be reason for investigation. * Manual overides to computed biases are flagged in the report. * Missing DPAs (Digital Precipitation Arrays) from the RADARS are flagged in the report.