Lacawac weather for: MONTH 12,2003 Platform Location (BD=beside dock; OD=on dock; LC=lake center): BD Rec field is % of data records collected (less than 100 indicates incomplete) Conversions: wind speed m/s X 2.24 = mph; rain mm/25.4=inches Note that unheated rain gage will delay reporting frozen precipitation until sun or Tair>0 melts it, underestimating total because of sublimation. Thermal stratification 9-10 Dec; ice developed, then interrupted 'til 14 Dec Ice cover starting 15 Dec inferred from water temperature Snow 5-6 December (by lake level increase): water equivalent=13 mm 10-11 December: 68.5mm precip=>103mm lake rise 16-18 December: 20.6mm=>48mm lake rise (including melting snowpack runoff) 23-25 December:19.0mm=>34mm lake rise MAX AVG MIN SUM AVG SUM SUM AVG MAX AVG AVG Day Rec Tair Tair Tair Precip RH PAR PYR WIND GUST T_0.1m T_3m #'s % (C) (C) (C) (mm) (%) (Mol/m2) (kJ/m2) (m/s) (m/s) (C) (C) 1 100 7.3 3.1 -2.1 0.0 63 5.8 2837 3.3 11.8 5.1 5.6 2 100 -1.6 -4.9 -9.0 0.0 67 10.0 5196 4.1 11.8 4.3 4.7 3 100 -4.3 -7.4 -9.3 0.0 72 13.4 7165 2.3 9.4 3.3 4.0 4 100 2.2 -3.6 -8.4 0.0 65 12.1 6259 0.6 5.7 2.4 4.6 5 100 -2.7 -4.7 -7.0 0.0 84 4.9 2279 1.9 7.6 1.6 4.3 6 100 -5.8 -6.5 -7.3 0.0 94 6.6 3050 3.1 8.3 1.9 3.2 7 100 -4.8 -7.5 -10.5 0.0 82 7.7 3684 4.2 9.5 2.1 2.7 8 100 -0.9 -5.0 -7.7 1.5 75 12.2 6194 1.9 8.8 1.7 2.7 9 100 0.1 -2.8 -6.0 0.5 76 6.1 2827 0.2 3.0 0.8 3.8 10 100 6.1 2.0 -1.3 12.5 86 10.2 5008 1.1 7.1 1.3 3.9 11 100 10.9 6.9 0.5 56.0 91 2.2 963 3.6 11.1 2.7 3.4 12 100 0.5 -1.3 -3.8 0.0 66 8.8 4434 3.9 12.5 2.2 2.7 13 100 -3.8 -5.1 -6.7 0.0 64 12.6 6696 2.1 7.9 1.2 2.3 14 100 -4.5 -6.6 -8.3 0.0 85 2.0 771 2.9 9.6 0.7 2.1 15 100 -1.3 -3.5 -6.4 0.0 84 3.9 1849 4.3 11.9 0.3 2.0 16 100 10.4 0.3 -5.4 3.9 75 11.0 5500 0.7 7.9 0.2 2.4 17 100 3.6 0.8 -3.6 15.6 96 1.5 598 1.4 9.1 0.3 2.6 18 100 -2.4 -3.7 -5.2 0.7 84 11.2 6020 2.4 8.4 0.3 2.4 19 100 -1.6 -3.5 -5.5 0.0 74 10.2 5238 1.4 6.1 0.3 2.8 20 100 -2.1 -4.6 -7.5 0.0 84 8.8 4326 1.8 7.3 0.3 2.8 21 100 0.0 -4.1 -10.3 0.0 62 11.0 5476 1.3 6.6 0.2 2.8 22 100 7.2 3.1 -4.3 4.0 52 9.8 4714 0.9 7.9 0.2 2.8 23 100 10.8 6.0 3.0 0.1 73 11.5 5683 0.3 4.3 0.2 3.0 24 100 11.0 6.8 1.8 18.8 97 3.1 1355 0.9 6.6 0.2 3.0 25 100 1.9 -0.6 -2.7 0.1 89 7.1 3522 1.6 8.3 0.2 3.1 26 100 2.8 -0.9 -3.8 0.3 71 8.9 4412 3.2 9.9 0.2 3.0 27 100 5.1 0.8 -3.3 0.0 79 11.9 6080 2.4 8.1 0.2 3.1 28 100 9.4 -0.3 -5.9 0.1 75 11.2 5683 0.2 2.4 0.2 3.4 29 100 13.0 4.8 -1.5 0.0 63 10.7 5297 0.5 2.8 0.2 3.5 30 100 7.2 3.8 0.4 3.7 74 4.5 2208 2.9 11.9 0.2 3.4 31 100 5.9 1.8 -2.1 0.0 64 11.0 5475 1.6 9.0 0.1 3.5 MONTHLY SUMMARY: CUM CUM MAX AVG MIN SUM AVG SUM SUM AVG MAX AVG AVG Day Rec Tmax Tavg Tmin Precip RH PAR PYR WIND GUST T_0.1m T_3m #'s % (C) (C) (C) (mm) (%) (Mol/m2) (kJ/m2) (m/s) (m/s) (C) (C) 31 100 13.0 -1.2 -10.5 117.8 76 262 130799 2.0 12.5 1.1 3.2