------------------------------------------------------------------- NEXRAD Precipitation Bias Calculated from the Multi Precipitation Estimator for RADARS in the SERFC Area for 2013-06-19 17:00:00 GMT. ------------------------------------------------------------------- Radar ID Bias Based on #Pairs /Gage Sum /Radar Sum Z=(a)R^(b) ZR type ----- ---- -------- --------------------------- ---------- ------- AKQ 1.21 0010 hrs 15 / 3.97 / 3.29 200 1.6 Marshall-Palmer AMX 1.00 0168 hrs 90 / 2.90 / 2.90 300 1.4 Convective BMX 0.81 0005 hrs 14 / 1.82 / 2.25 300 1.4 Convective BYX 0.85 0168 hrs 66 / 2.73 / 3.20 300 1.4 Convective CAE 0.82 0010 hrs 22 / 2.20 / 2.68 300 1.4 Convective CLX 0.93 0010 hrs 26 / 2.81 / 3.04 300 1.4 Convective DGX 1.10 ***** Manually Edited Bias ***** EOX 1.25 ***** Manually Edited Bias ***** EVX 1.30 0005 hrs 12 / 2.34 / 1.80 300 1.4 Convective FCX 1.36 0010 hrs 80 / 2.93 / 2.15 300 1.4 Convective FFC 1.12 0005 hrs 12 / 2.38 / 2.13 Missing *No Radar Data GSP 1.35 0005 hrs 25 / 2.21 / 1.63 300 1.4 Convective GWX 0.80 0168 hrs 111 / 3.49 / 4.37 300 1.4 Convective HTX 1.06 0010 hrs 80 / 2.98 / 2.81 300 1.4 Convective JAX 1.00 ***** Manually Edited Bias ***** JGX 1.25 ***** Manually Edited Bias ***** LTX 1.09 0003 hrs 13 / 1.45 / 1.33 300 1.4 Convective MHX 1.02 0005 hrs 12 / 2.54 / 2.48 300 1.4 Convective MLB 1.00 ***** Manually Edited Bias ***** MOB 1.10 ***** Manually Edited Bias ***** MRX 1.83 0010 hrs 40 / 3.23 / 1.77 300 1.4 Convective MXX 1.25 ***** Manually Edited Bias ***** NQA 0.76 0168 hrs 150 / 3.99 / 5.28 300 1.4 Convective OHX 1.36 0010 hrs 23 / 3.43 / 2.53 300 1.4 Convective RAX 0.93 0003 hrs 12 / 1.56 / 1.67 300 1.4 Convective TBW 1.60 ***** Manually Edited Bias ***** TLH 1.10 ***** Manually Edited Bias ***** VAX 1.10 ***** 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.