Table 1. Statistics for HOx Observed-to-Modeled Ratios Overall 0-2 km 2-8 km 8-12 km OH Obs/Mod Median (mean) 0.95 (1.24) 1.00 (1.54) 0.92 (1.05) 0.98 (1.25) % within +/-32% 52% 47% 58% 50% % mod < obs/1.32 below 2sigma 23% 34% 16% 24% % mod > obs x 1.32 25% 19% 26% 26% HO2 Obs/Mod Median (mean) 1.28 (2.87) 1.37 (1.57) 1.13 (2.10) 2.05 (5.49) % within +/-32% 50% 41% 74% 19% % mod < obs/1.32 below 2sigma 46% 56% 20% 79% % mod > obs x 1.32 4% 3% 6% 2% HO2/OH Obs/Mod Median (mean) 1.33 (1.68) 1.26 (1.26) 1.20 (1.24) 2.20 (2.88) % within +/-32% 40% 40% 55% 13% % mod < obs/1.32 below 2sigma 50% 44% 36% 83% % mod > obs x 1.32 10% 16% 9% 4%