CLIMATOLOGICAL OBSERVATIONS PITSFORD HALL WEATHER STATION NOVEMBER 2001 Observations at Pitsford Hall at 1st 2nd 3rd 4th 5th 6th 7th 8th 9th 10th 11th 12th 13th 14th 15th 16th 17th 18th 19th 20th 21st 22nd 23rd 24th 25th 26th 27th 28th 29th 30th 0900 hours UTC Total Cloud 1 8 3 3 2 5 7 8 9 3 8 8 5 2 2 8 8 8 7 7 7 8 7 3 7 0 8 5 8 8 Wind Direction w ese wsw nw nnw nw nw nw n wnw nnw wnw n nne nnw nne ne ne calm ssw ssw nw nnw w ssw nw ssw wsw ssw s Speed (knots) 6 1 3 8 1 11 1 20 17 7 14 3 18 8 1 1 1 1 0 3 8 10 1 6 14 2 14 9 16 9 Weather 2 3 11 2 41 2 2 62 2 2 10 63 1 1 1 3 2 2 10 2 2 3 1 3 21 0 2 2 51 2 Visibility 6 5 5 7 6 7 5 7 7 8 5 6 7 7 5 4 6 5 5 5 6 7 5 6 7 7 7 7 7 6 Screen (C) Dry Bulb 5.3 7.2 6.6 9.1 3.5 9.4 10.1 4.3 2.4 2.6 9.2 8.3 3.2 0.5 -0.6 7.6 8.0 6.7 3.8 5.3 8.7 6.8 -0.7 9.0 10.7 1.7 3.6 3.6 11.0 12.6 Wet Bulb 4.9 6.8 6.4 8.3 3.4 8.9 9.6 3.9 1.3 0.3 8.9 8.1 3.0 0.3 -0.6 7.4 7.2 6.5 3.7 4.8 8.0 6.2 -1.4 8.5 10.4 1.4 3.2 3.1 10.8 12.5 Max 14.0 12.2 14.0 12.7 11.7 13.0 13.3 5.2 6.6 9.1 12.5 10.6 6.2 8.0 7.4 10.2 10.5 10.4 10.1 10.9 10.1 10.4 8.8 13.3 12.8 6.5 9.0 10.8 12.5 15.0 Min 3.6 5.1 4.6 4.8 1.8 3.5 8.8 3.8 -0.1 -2.2 2.6 7.0 3.0 -2.1 -1.3 -0.7 7.3 5.9 3.5 1.6 5.5 6.5 -1.8 -0.9 8.8 0.0 0.5 2.8 3.2 10.6 Ground Observations Grass Min -0.5 0.6 -0.8 1.9 -3.6 -0.4 6.2 3.4 -4.7 -6.4 0.5 3.7 -0.6 -6.2 -3.0 -2.5 6.1 3.9 3.2 -3.0 2.9 1.6 -5.9 -2.2 4.4 -4.9 -3.2 -1.8 0.0 _ Conc. Min 1.5 2.3 2.0 3.3 -0.4 1.8 6.8 3.0 -1.4 0.3 1.6 5.5 2.0 -3.4 -5.4 -0.9 7.8 5.0 0.6 -0.3 4.0 4.5 -3.4 -0.7 6.1 -1.9 -1.3 _ 2.4 3.0 Bare Earth Min 3.1 4.2 3.5 4.3 0.9 3.1 7.8 6.5 0.0 -0.9 2.7 7.1 7.2 -0.5 0.5 0.6 7.6 5.9 2.6 0.9 4.5 5.4 -1.5 0.2 7.1 -0.7 -2.3 0.0 2.0 2.7 Soil/Earth Temperatures Surface 5.9 0.8 5.5 8.8 5.0 8.7 _ _ 3.5 3.2 8.5 8.2 4.3 1.7 1.4 7.6 7.2 7.4 4.0 5.1 8.0 7.3 1.7 7.9 10.1 2.3 2.0 2.4 1.9 2.5 5cm 6.2 7.2 6.5 9.0 5.2 8.7 9.2 7.2 3.2 3.0 7.0 7.8 7.7 2.2 2.2 6.4 7.4 6.9 5.3 4.9 6.2 7.6 2.4 6.4 6.8 3.5 2.3 3.3 8.0 10.2 10cm 7.7 7.9 7.9 9.8 6.8 9.3 9.8 8.4 4.6 4.0 7.2 8.3 7.2 3.6 3.5 6.6 7.7 7.4 6.6 5.6 6.6 8.3 3.8 6.6 8.8 5.0 3.0 4.2 7.1 9.9 20cm 8.6 9.2 9.3 10.2 8.8 9.4 10.2 9.6 6.8 5.8 7.4 8.8 8.4 6.0 5.6 6.9 7.9 8.0 7.6 6.7 7.1 8.6 6.2 6.8 8.5 6.9 5.0 5.6 6.9 8.0 30cm 10.4 9.9 10.1 10.3 9.9 9.6 10.2 10.0 8.5 7.2 7.6 8.7 8.9 7.4 6.6 7.0 7.7 8.0 7.9 7.1 7.6 8.4 7.3 7.0 8.2 7.6 5.5 6.2 6.0 7.9 40cm 10.5 10.1 10.0 10.2 9.7 9.6 10.3 10.0 8.5 7.3 7.7 8.6 8.7 7.5 7.5 7.5 7.6 8.0 8.0 7.3 7.4 8.2 7.5 7.1 8.0 7.7 6.0 6.4 6.5 8.2 50cm 11.7 10.5 10.9 10.9 10.6 10.4 10.5 10.2 9.8 8.6 7.5 9.4 9.4 8.9 8.0 8.0 8.2 8.5 8.6 8.3 8.2 8.5 8.1 7.5 8.3 8.4 7.5 7.1 7.1 8.2 100cm 12.1 11.8 11.6 11.4 11.3 11.2 11.2 11.2 10.8 10.4 10.2 9.9 9.9 9.6 9.4 9.2 9.1 9.1 9.1 9.0 8.9 8.8 8.7 8.8 8.7 8.7 8.8 8.7 8.1 8.3 State of the Ground Without snow 1 1 1 1 1 1 1 2 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 2 2 With snow _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ Snow depth _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ State of the Grass 1 1 1 1 5 3 1 3 5 5 1 3 0 7 7 4 2 1 1 1 1 3 7 1 3 5 1 1 3 3 State of the Concrete 0 0 0 0 0 1 1 2 0 0 1 2 2 0 0 0 1 1 0 1 2 2 3 1 2 0 1 0 2 1 Evaporation Hook-gauge reading 54.07 56.03 n/a n/a 65.34 65.36 _ _ _ 71.57 _ _ _ _ 76 _ _ _ 74.62 _ _ 74.75 _ 73.34 _ _ 57.74 _ _ _ Total evaporation (less rainfall) 0.95 1.96 n/a n/a n/a 0.68 > > > 1.79 > > > > 1.57 > > > 1.48 > > 1.17 > 1.71 > > 0.61 > > > Rainfall Total _ _ _ _ 0.7 _ 7.3 0.7 tr(x) _ 1.8 4.2 tr tr(x) tr(x) _ 0.1 _ _ _ 1.3 _ 0.3 0.2 4.3 _ 1.8 4.2 9.2 7.7 Duration _ _ _ _ 0.5 _ 6.3 0.5 _ _ 0.8 4.5 _ _ _ _ 0.1 _ _ _ _ _ 1.3 0.4 2.9 _ 1.5 3.4 9.5 6.0 Acidity _ _ _ _ 6.45 _ _ _ _ _ _ 6.48 _ _ _ _ _ _ _ _ 6.45 _ _ _ 6.39 _ 5.60 6.40 6.40 6.08 Run of Wind Miles 54.47 43.45 57.49 87.21 105.72 96.71 163.79 267.95 123.16 82.4 98.06 113.19 132.03 46.87 49.69 54.4 80.2 21.56 31.39 111.35 91.65 211.56 59.45 98.12 100.4 90.39 140.2 156.52 43.66 264.25 Mean 3 2.4 3.1 4.7 5.7 5.2 8.9 14.5 6.7 4.5 5.3 6.1 7.2 2.5 2.7 2.9 4.3 1.2 1.7 6 5 11.5 3.2 5.3 5.4 4.9 7.6 8.5 2.4 14.3 Gust <15 <15 16 20 21 29 44 49 33 19 21 33 33 <15 <15 <15 <15 <15 <15 30 28 32 <15 20 39 16 32 21 24 24 Sunshine 7.5 0.0 7.1 7.5 4.7 3.9 0.5 1.8 5.9 3.6 0.0 0.0 6.7 6.2 2.3 0.0 0.0 0.0 4.5 0.8 0.0 3.8 0.0 2.3 0.0 6.2 0.3 0.1 0.0 0.0 Statistics Saturated VP(Twb) 0.867 0.989 0.962 1.095 0.78 1.141 1.196 0.808 0.671 0.624 1.141 1.081 0.758 0.624 0.585 1.03 1.016 0.968 0.797 0.861 1.073 0.949 0.551 1.11 1.262 0.676 0.769 0.763 1.296 1.45 VP 0.84 0.962 0.948 1.041 0.773 1.107 1.162 0.781 0.597 0.469 1.121 1.067 0.744 0.611 0.585 1.016 0.962 0.954 0.79 0.827 1.025 0.908 0.504 1.076 1.242 0.656 0.742 0.729 1.282 1.443 Saturated VP 0.891 1.016 0.975 1.156 0.785 1.18 1.237 0.831 0.726 0.737 1.164 1.095 0.769 0.634 0.585 1.044 1.073 0.982 0.802 0.891 1.126 0.989 0.581 1.149 1.287 0.691 0.791 0.791 1.313 1.46 RH % 94.3 94.7 97.2 90.1 98.5 93.8 93.9 94 82.2 63.6 96.3 97.4 96.7 96.4 100 97.3 89.7 97.1 98.5 92.8 91 91.8 86.7 93.6 96.5 94.9 93.8 92.2 97.6 98.8 Dew Point 4.5 6.4 6.2 7.6 3.3 8.5 9.2 3.4 -0.3 -3.6 8.6 7.9 2.7 0 -0.6 7.2 6.4 6.3 3.6 4.2 7.3 5.6 -2.6 8 10.2 1 2.7 2.5 10.6 12.4 Pressure 1038.2 1040.1 1034.7 1026.6 1028.4 1015.0 1009.6 996.9 1023.6 1028.5 1024.1 1015.2 1024.6 1032.4 1038.4 1039.3 1036.3 1029.5 1028.0 1029.5 1026.2 1021.0 1028.8 1023.3 1016.0 1017.4 1007.1 1015.3 1010.4 1006.6 Days with thunder _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ hail<0.5mm _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ hail>/=0.5mm _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ snow _ _ _ _ _ _ _ 1 _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ fog _ _ 1 _ 1 _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _