# APEX float data from float 8146 (PI: Angelicque White, University of Hawaii) deployed during the Grandients 4 cruise (TN397) in Nov 2021 at ~20N/140W (float is still transmitting data) # Designed float mission: a repeated sequence of burst sampling (~6 profiles/day) of the top 200m for ~ 4-7 days, followed by daily profiles for ~10-14 days # DATA ARE PROVISIONAL AND WILL BE ALTERED AS MORE PROFILES ARE ADDED (eg. drift correction of sensors will likely be performed in the near future) # For questions about float data, please inquire Fernanda Henderikx (fhenderi@hawaii.edu) # date of file creation: 15-Aug-2022 11:07:35 # original profile science log name: f8146.538.20220528T205210.science.mat # profile date(gmt): 28-May-2022 17:47:37 # profile lat: 20.9656 # profile lon: -136.5598 # profile number: 538 # Instruments on APEX: SBE41 (ctd), BBFL2 (chl,bbp), C-ROVER (beam attenuation), CRV2K (downwelling irradiance), Aandera 4330 (oxygen) # Applied corrections/calibrations: # chl: counts converted to mg/m3 using factory calibrationsand deep chl values # bbp: vol. scatt. converted to particle backsttering coefficient (bbp) using betasw of Zhang et al (2009) and Xi from Boss and Pegau (2001) # irradiance data: data were qa/qc following protocols of Organelli et al (2016), JTECH # oxygen optode data: salinity and pressure compensation corrections applied using ctd data according to Aandera manual, and air calibrations/Gain corrections following Bushinsky et al (2016) # flag or NaN value: -999 # pressure,temperature,salinity,sigma0,chl,bbp(650nm),[O2],O2sat,particulateBeamAttenuation(650nm),IrradianceCh1,IrradianceCh2,IrradianceCh3,IrradianceCh4 # dbar,degC,psu,kg/m3,mg/m3,1/m,uM/kg,percentsat,1/m,uW/cm2/nm,uW/cm2/nm,uW/cm2/nm,uW/cm2/nm 3.82000 22.43590 34.26940 23.54404 0.14520 0.00063 230.38717 106.33471 -999.00000 -999.00000 -999.00000 -999.00000 -999.00000 8.64000 22.44090 34.27120 23.54426 0.14520 0.00058 235.08631 108.50623 -999.00000 -999.00000 -999.00000 -999.00000 -999.00000 13.61000 22.43680 34.27140 23.54585 0.13767 0.00083 236.55942 109.17622 -999.00000 -999.00000 -999.00000 -999.00000 -999.00000 18.75000 22.43650 34.27020 23.54531 0.12100 0.00088 237.87630 109.77770 -999.00000 -999.00000 -999.00000 -999.00000 -999.00000 23.22000 22.42390 34.27150 23.55012 0.13703 0.00096 239.38199 110.45514 -999.00000 -999.00000 -999.00000 -999.00000 -999.00000 27.89000 22.42160 34.26950 23.54952 0.30598 0.00085 237.97779 109.78269 -999.00000 -999.00000 -999.00000 -999.00000 -999.00000 33.56000 22.41780 34.27110 23.55214 0.52383 0.00062 235.58608 108.61564 -999.00000 -999.00000 -999.00000 -999.00000 -999.00000 38.64000 22.35130 34.29990 23.59306 0.24995 0.00075 233.72596 107.50219 -999.00000 -999.00000 -999.00000 -999.00000 -999.00000 43.51000 22.08250 34.39780 23.74322 0.24884 0.00083 232.08002 106.34080 -999.00000 -999.00000 -999.00000 -999.00000 -999.00000 47.89000 21.88620 34.46720 23.85100 0.24294 0.00083 231.22133 105.62145 -999.00000 -999.00000 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