# 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 11:07:27 # original profile science log name: f8146.500.20220512T182804.science.mat # profile date(gmt): 12-May-2022 15:21:59 # profile lat: 20.777 # profile lon: -136.4591 # profile number: 500 # 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 3.92000 21.49590 34.48880 23.97320 0.06395 0.00062 301.75379 137.16340 -999.00000 64.14485 -999.00000 -999.00000 55.17790 8.90000 21.49570 34.48830 23.97314 0.11481 0.00061 332.30865 151.03569 -999.00000 75.29606 -999.00000 -999.00000 55.24238 13.20000 21.47570 34.51570 23.99970 0.14520 0.00050 332.01366 150.86879 -999.00000 -999.00000 -999.00000 -999.00000 21.98056 17.77000 21.46790 34.52840 24.01174 0.14520 0.00058 320.47055 145.62121 -999.00000 -999.00000 -999.00000 -999.00000 16.17743 21.76000 21.46260 34.55570 24.03416 0.14520 0.00063 306.58110 139.32670 -999.00000 33.24620 -999.00000 -999.00000 12.28867 26.24000 21.46170 34.56220 24.03960 0.14520 0.00071 291.42424 132.43967 -999.00000 29.39363 -999.00000 -999.00000 9.12419 31.11000 21.46160 34.56830 24.04453 0.15294 0.00059 277.92535 126.30981 -999.00000 25.49948 -999.00000 -999.00000 6.41018 36.49750 21.46332 34.57422 24.04884 0.16311 0.00061 271.56230 123.42547 -999.00000 -999.00000 -999.00000 -999.00000 -999.00000 41.88500 21.46505 34.58015 24.05316 0.17327 0.00063 265.19931 120.54081 -999.00000 -999.00000 -999.00000 -999.00000 -999.00000 47.27250 21.46677 34.58608 24.05747 0.18344 0.00065 258.83636 117.65581 -999.00000 -999.00000 -999.00000 -999.00000 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