------------------------------------------------------------------- NEXRAD Precipitation Bias Calculated from the Multi Precipitation Estimator for RADARS in the SERFC Area for 2013-05-21 21:00:00 GMT. ------------------------------------------------------------------- Radar ID Bias Based on #Pairs /Gage Sum /Radar Sum Z=(a)R^(b) ZR type ----- ---- -------- --------------------------- ---------- ------- AKQ 1.10 ***** Manually Edited Bias ***** AMX 1.40 ***** Manually Edited Bias ***** BMX 1.14 0168 hrs 614 / 3.29 / 2.88 300 1.4 Convective BYX 1.44 0168 hrs 58 / 5.11 / 3.56 300 1.4 Convective CAE 0.90 ***** Manually Edited Bias ***** CLX 0.90 ***** Manually Edited Bias ***** DGX 0.94 0168 hrs 143 / 3.14 / 3.34 300 1.4 Convective EOX 1.25 ***** Manually Edited Bias ***** EVX 1.20 0168 hrs 88 / 3.26 / 2.73 300 1.4 Convective FCX 0.71 0005 hrs 10 / 6.55 / 9.25 300 1.4 Convective FFC 0.94 0002 hrs 10 / 2.38 / 2.53 300 1.4 Convective GSP 0.90 ***** Manually Edited Bias ***** GWX 1.05 0168 hrs 85 / 3.02 / 2.88 300 1.4 Convective HTX 0.93 Current 19 / 3.13 / 3.38 300 1.4 Convective JAX 0.90 ***** Manually Edited Bias ***** JGX 1.00 ***** Manually Edited Bias ***** LTX 1.10 ***** Manually Edited Bias ***** MHX 1.10 ***** Manually Edited Bias ***** MLB 1.25 ***** Manually Edited Bias ***** MOB 0.74 0168 hrs 120 / 3.60 / 4.89 300 1.4 Convective MRX 1.11 Current 17 / 5.01 / 4.53 300 1.4 Convective MXX 1.14 0168 hrs 466 / 2.91 / 2.56 300 1.4 Convective NQA 0.74 0003 hrs 13 / 1.90 / 2.55 300 1.4 Convective OHX 0.73 Current 20 / 3.71 / 5.05 300 1.4 Convective RAX 1.25 ***** Manually Edited Bias ***** TBW 1.44 0001 hrs 16 / 10.63 / 7.39 300 1.4 Convective TLH 0.76 0010 hrs 12 / 5.24 / 6.85 300 1.4 Convective VAX 0.90 ***** 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.