03-mar-10 14:05:00 Measurements ended --- . Number of lamps (L) = 7 . Filter running time = 56.74 hours . Total airflow this filter = 16.8 cubic meters . Mean BC concentration of all lamps = 109 ng/m3 . Report for lamp 1 (370 nm): . Ending voltages: sen(beam) = .175 sen(zero) = 0.021 . ref(beam) = 1.607 ref(zero) = 0.020 . Optical attenuation of filter deposit = 125 . Total aerosol black carbon on filter = 1582 ng Mean aerosol black carbon concentration = 94 ng/m3 --- The reference beam showed lamp intensity fluctuations of 260 ppm. --- Report for lamp 2 (470 nm): . Ending voltages: sen(beam) = .321 sen(zero) = 0.021 . ref(beam) = 1.637 ref(zero) = 0.020 . Optical attenuation of filter deposit = 107 . Total aerosol black carbon on filter = 1731 ng Mean aerosol black carbon concentration = 103 ng/m3 --- The reference beam showed lamp intensity fluctuations of 69 ppm. --- Report for lamp 3 (520 nm): . Ending voltages: sen(beam) = .366 sen(zero) = 0.021 . ref(beam) = 2.130 ref(zero) = 0.020 . Optical attenuation of filter deposit = 98 . Total aerosol black carbon on filter = 1744 ng Mean aerosol black carbon concentration = 103 ng/m3 --- The reference beam showed lamp intensity fluctuations of 62 ppm. --- Report for lamp 4 (590 nm): . Ending voltages: sen(beam) = .363 sen(zero) = 0.021 . ref(beam) = 2.924 ref(zero) = 0.020 . Optical attenuation of filter deposit = 91 . Total aerosol black carbon on filter = 1840 ng Mean aerosol black carbon concentration = 109 ng/m3 --- The reference beam showed lamp intensity fluctuations of 237 ppm. --- Report for lamp 5 (660 nm): . Ending voltages: sen(beam) = .602 sen(zero) = 0.021 . ref(beam) = 2.620 ref(zero) = 0.020 . Optical attenuation of filter deposit = 85 . Total aerosol black carbon on filter = 1920 ng Mean aerosol black carbon concentration = 114 ng/m3 --- The reference beam showed lamp intensity fluctuations of 130 ppm. --- Report for lamp 6 (880 nm): . Ending voltages: sen(beam) = .650 sen(zero) = 0.021 . ref(beam) = 2.450 ref(zero) = 0.020 . Optical attenuation of filter deposit = 68 . Total aerosol black carbon on filter = 2050 ng Mean aerosol black carbon concentration = 122 ng/m3 --- The reference beam showed lamp intensity fluctuations of 179 ppm. --- Report for lamp 7 (950 nm): . Ending voltages: sen(beam) = .622 sen(zero) = 0.021 . ref(beam) = 2.360 ref(zero) = 0.020 . Optical attenuation of filter deposit = 63 . Total aerosol black carbon on filter = 2045 ng Mean aerosol black carbon concentration = 121 ng/m3 --- The reference beam showed lamp intensity fluctuations of 190 ppm. --- Disk space = 2.409226E+08 bytes free: One entry at every 5 minutes. There is space for 51217 hours ( 2134 days) more data --- 03-mar-10 14:05:00 Tape feeder mechanism advancing for 1 spot(s). --- ============================================================= --- MAGEE SCIEN. AETHALOMETER --- Aethalometer No. 774 --- 03-mar-10 14:14:56 Measurements started Starting voltages: . sen(zero) = 0.021 ref(zero) = 0.020 . Lamp 1 (370 nm): sen(beam) = 1.020 ref(beam) = 1.465 . Lamp 2 (470 nm): sen(beam) = 1.580 ref(beam) = 1.608 . Lamp 3 (520 nm): sen(beam) = 1.665 ref(beam) = 2.097 . Lamp 4 (590 nm): sen(beam) = 1.515 ref(beam) = 2.825 . Lamp 5 (660 nm): sen(beam) = 2.307 ref(beam) = 2.590 . Lamp 6 (880 nm): sen(beam) = 1.853 ref(beam) = 2.432 . Lamp 7 (950 nm): sen(beam) = 1.642 ref(beam) = 2.357 ---