78, 1001 Weber, Rodney Georgia Institute of Technology University of New Hampshire SAGA filter extracts light absorption measured on the NASA DC-8 ATom 1, 1 2017, 02, 05, 2017, 12, 01 0 Start_UTC, seconds_past_midnight, N/A 45 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1 -9999, -9999, -9999, -9999, -9999, -9999, -9999, -9999, -9999, -9999, -9999, -9999, -9999, -9999, -9999, -9999, -9999, -9999, -9999, -9999, -9999, -9999, -9999, -9999, -9999, -9999, -9999, -9999, -9999, -9999, -9999, -9999, -9999, -9999, -9999, -9999, -9999, -9999, -9999, -9999, -9999, -9999, -9999, -9999, -9999 Stop_UTC, seconds_past_midnight, N/A WS_Abs_300nm, Mm-1, LOD0.318 WS_Abs_320nm, Mm-1, LOD0.117 WS_Abs_340nm, Mm-1, LOD0.076 WS_Abs_360nm, Mm-1, LOD0.053 WS_Abs_380nm, Mm-1, LOD0.039 WS_Abs_400nm, Mm-1, LOD0.030 WS_Abs_420nm, Mm-1, LOD0.024 WS_Abs_440nm, Mm-1, LOD0.023 WS_Abs_460nm, Mm-1, LOD0.019 WS_Abs_480nm, Mm-1, LOD0.018 WS_Abs_500nm, Mm-1, LOD0.016 WS_Abs_520nm, Mm-1, LOD0.015 WS_Abs_540nm, Mm-1, LOD0.017 WS_Abs_560nm, Mm-1, LOD0.021 WS_Abs_580nm, Mm-1, LOD0.029 WS_Abs_600nm, Mm-1, LOD0.028 WS_Abs_620nm, Mm-1, LOD0.032 WS_Abs_640nm, Mm-1, LOD0.084 WS_Abs_660nm, Mm-1, LOD0.101 WS_Abs_680nm, Mm-1, LOD0.115 WS_Abs_700nm, Mm-1, LOD0.181 WS_Abs_365nm, Mm-1, LOD0.050 MS_Abs_300nm, Mm-1, LOD1.234 MS_Abs_320nm, Mm-1, LOD0.609 MS_Abs_340nm, Mm-1, LOD0.373 MS_Abs_360nm, Mm-1, LOD0.229 MS_Abs_380nm, Mm-1, LOD0.125 MS_Abs_400nm, Mm-1, LOD0.069 MS_Abs_420nm, Mm-1, LOD0.051 MS_Abs_440nm, Mm-1, LOD0.040 MS_Abs_460nm, Mm-1, LOD0.033 MS_Abs_480nm, Mm-1, LOD0.033 MS_Abs_500nm, Mm-1, LOD0.032 MS_Abs_520nm, Mm-1, LOD0.045 MS_Abs_540nm, Mm-1, LOD0.066 MS_Abs_560nm, Mm-1, LOD0.102 MS_Abs_580nm, Mm-1, LOD0.143 MS_Abs_600nm, Mm-1, LOD0.181 MS_Abs_620nm, Mm-1, LOD0.164 MS_Abs_640nm, Mm-1, LOD0.095 MS_Abs_660nm, Mm-1, LOD0.049 MS_Abs_680nm, Mm-1, LOD0.048 MS_Abs_700nm, Mm-1, LOD0.053 MS_Abs_365nm, Mm-1, LOD0.194 1 N/A 18 PI_CONTACT_INFO: rweber@eas.gatech.edu PLATFORM: NASA DC-8 airborne laboratory LOCATION: NAN-CHC ASSOCIATED_DATA: N/A INSTRUMENT_INFO: WPI LWCC and Ocean Optics USB4000 spectrometer DATA_INFO: Filters were first extracted in 15 ml of water, dried and then extracted again using 15 ml of methanol. Each extract was filtered with a 0.45 um pore size syringe filter and then injected through a 2.5 m path length LWCC and light absorption measured by Ocean Optics USB4000 spectrometer. Absorption from 300 to 700 nm were recorded. Absorption of pure solvent was subtracted from the sample. Raw absorption data were processed by the equation Abs=Raw*(Volume of extraction liquid)/(Volume of air collected at STP)/(Optical Path Length, 2.5m here)*ln(10). Brown carbon absorption was determined by absorption at 365 nm. Data reported here were averaged over 20 nm wavelength intervals. i.e. absorption at 400 nm were average by absorption data between 390 nm to 410 nm. Absorption data have been blank corrected by averaging all blank filter in this mission (2-3 blank filters per flight). Limit of detection (LOD) was determined by three times standard deviation of blank data. STP is T=273K & p=1013 mb). UNCERTAINTY: 19.3% for WS_Abs_365nm and 15.6% for MS_Abs_365nm ULOD_FLAG: -77777 ULOD_VALUE: N/A LLOD_FLAG: -88888 LLOD_VALUE: In long description of the data DM_CONTACT_INFO: lhzeng@gatech.edu PROJECT_INFO: ATom-2 STIPULATIONS_ON_USE: Use of these data require prior ok from PI. 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