------------------------------------------------------------------- NEXRAD Precipitation Bias Calculated from the Multi Precipitation Estimator for RADARS in the SERFC Area for 2013-06-18 15:00:00 GMT. ------------------------------------------------------------------- Radar ID Bias Based on #Pairs /Gage Sum /Radar Sum Z=(a)R^(b) ZR type ----- ---- -------- --------------------------- ---------- ------- AKQ 0.97 0168 hrs 194 / 2.56 / 2.65 200 1.6 Marshall-Palmer AMX 1.01 0168 hrs 94 / 3.09 / 3.06 300 1.4 Convective BMX 0.89 0001 hrs 16 / 2.43 / 2.72 300 1.4 Convective BYX 0.85 0168 hrs 64 / 2.90 / 3.39 300 1.4 Convective CAE 1.50 ***** Manually Edited Bias ***** CLX 1.10 ***** Manually Edited Bias ***** DGX 0.79 0002 hrs 10 / 2.69 / 3.40 300 1.4 Convective EOX 1.25 ***** Manually Edited Bias ***** EVX 1.75 ***** Manually Edited Bias ***** FCX 1.58 Current 86 / 3.14 / 1.99 300 1.4 Convective FFC 1.65 ***** Manually Edited Bias ***** GSP 1.50 ***** Manually Edited Bias ***** GWX 1.00 ***** Manually Edited Bias ***** HTX 1.50 ***** Manually Edited Bias ***** JAX 0.60 0010 hrs 20 / 4.00 / 6.70 300 1.4 Convective JGX 1.40 ***** Manually Edited Bias ***** LTX 0.87 0005 hrs 13 / 1.96 / 2.27 300 1.4 Convective MHX 0.82 0010 hrs 11 / 1.68 / 2.04 300 1.4 Convective MLB 1.02 0168 hrs 312 / 4.27 / 4.21 Missing *No Radar Data MOB 1.25 ***** Manually Edited Bias ***** MRX 2.01 Current 41 / 2.70 / 1.35 300 1.4 Convective MXX 1.50 ***** Manually Edited Bias ***** NQA 1.00 0005 hrs 11 / 5.07 / 5.08 300 1.4 Convective OHX 3.70 Current 14 / 2.94 / 0.79 300 1.4 Convective RAX 0.92 0010 hrs 20 / 2.20 / 2.38 300 1.4 Convective TBW 1.17 0168 hrs 325 / 4.15 / 3.56 300 1.4 Convective TLH 1.18 0010 hrs 14 / 3.12 / 2.65 300 1.4 Convective VAX 1.03 0168 hrs 539 / 3.49 / 3.40 300 1.4 Convective * 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.