File created on September 02, 2004 from file C:\Program Files\tracomx\40902106.trc with TRAC Windows Version 2.3.4 Data taken on September 2, 2004 Block used: 15 , 16 , 17 , 18 , 19 , 20 , 21 , 22 , 23 , 24 Mean element width: 10.0 mm Needle-to-shoot ratio (GammaE): 1.00 Woody to total ratio (ALPHA): 0.00 Distance between markers: 2.00 m Above PPFD: 1503.0 Latitude: 0.000° 0.000' 0.0'' North Longitude: 0.000° 0.000' 0.0'' West Long Ref: 0.000° 0.000' West Longitude reference time + 1 hour Mean interval resolution at sensor 0.46 cm This file provides clumping index OmegaE at various characteristic leaf width in mm and the mean contact number Km Kme = G(SZA) OmegaE LAI/(GammaE*cos(SZA)) We can therefore obtain LAI by assuming G(all angles)=0.5: LAI = 2 Kme cos(SZA)*GammaE/Omega For this stand, the effective mean contact number Kme = 3.86 Width Km Old OmegaE New OmegaE 5 4.779 0.808011 0.812127 6 4.765 0.810417 0.814458 7 4.750 0.813010 0.816970 8 4.739 0.814898 0.818801 9 4.716 0.818874 0.822657 10 4.688 0.823629 0.827271 -- This is the clumping index you need 11 4.645 0.831229 0.834654 12 4.597 0.839911 0.843097 13 4.544 0.849709 0.852638 14 4.488 0.860311 0.862974 15 4.273 0.903633 0.905329 16 4.233 0.912150 0.913674 17 4.200 0.919466 0.920846 18 4.165 0.927079 0.928315 19 4.122 0.936713 0.937769 20 4.082 0.945919 0.946810 21 4.060 0.951041 0.951842 22 4.048 0.953972 0.954722 23 4.034 0.957204 0.957898 24 4.020 0.960600 0.961236 25 4.002 0.964794 0.965359 26 3.989 0.968118 0.968627 27 3.975 0.971427 0.971882 28 3.961 0.974781 0.975181 29 3.948 0.978076 0.978422 30 3.934 0.981573 0.981863 31 3.920 0.985035 0.985270 32 3.906 0.988598 0.988775 33 3.887 0.993310 0.993414 34 3.870 0.997788 0.997822 35 3.861 1.000000 1.000000 36 3.861 1.000000 1.000000 37 3.861 1.000000 1.000000 38 3.861 1.000000 1.000000 39 3.861 1.000000 1.000000 40 3.861 1.000000 1.000000 41 3.861 1.000000 1.000000 42 3.861 1.000000 1.000000 43 3.861 1.000000 1.000000 44 3.861 1.000000 1.000000 45 3.861 1.000000 1.000000 46 3.861 1.000000 1.000000 47 3.861 1.000000 1.000000 48 3.861 1.000000 1.000000 49 3.861 1.000000 1.000000 50 3.861 1.000000 1.000000 51 3.861 1.000000 1.000000 52 3.861 1.000000 1.000000 53 3.861 1.000000 1.000000 54 3.861 1.000000 1.000000 55 3.861 1.000000 1.000000 56 3.861 1.000000 1.000000 57 3.861 1.000000 1.000000 58 3.861 1.000000 1.000000 59 3.861 1.000000 1.000000 60 3.861 1.000000 1.000000 61 3.861 1.000000 1.000000 62 3.861 1.000000 1.000000 63 3.861 1.000000 1.000000 64 3.861 1.000000 1.000000 65 3.861 1.000000 1.000000 66 3.861 1.000000 1.000000 67 3.861 1.000000 1.000000 68 3.861 1.000000 1.000000 69 3.861 1.000000 1.000000 70 3.861 1.000000 1.000000 71 3.861 1.000000 1.000000 72 3.861 1.000000 1.000000 73 3.861 1.000000 1.000000 74 3.861 1.000000 1.000000 75 3.861 1.000000 1.000000 76 3.861 1.000000 1.000000 77 3.861 1.000000 1.000000 78 3.861 1.000000 1.000000 79 3.861 1.000000 1.000000 80 3.861 1.000000 1.000000 81 3.861 1.000000 1.000000 82 3.861 1.000000 1.000000 83 3.861 1.000000 1.000000 84 3.861 1.000000 1.000000 85 3.861 1.000000 1.000000 86 3.861 1.000000 1.000000 87 3.861 1.000000 1.000000 88 3.861 1.000000 1.000000 89 3.861 1.000000 1.000000 90 3.861 1.000000 1.000000 91 3.861 1.000000 1.000000 92 3.861 1.000000 1.000000 93 3.861 1.000000 1.000000 94 3.861 1.000000 1.000000 95 3.861 1.000000 1.000000 96 3.861 1.000000 1.000000 97 3.861 1.000000 1.000000 98 3.861 1.000000 1.000000 99 3.861 1.000000 1.000000 100 3.861 1.000000 1.000000