# 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 11:07:31 # original profile science log name: f8146.517.20220526T083032.science.mat # profile date(gmt): 25-May-2022 11:29:53 # profile lat: 20.7885 # profile lon: -136.5498 # profile number: 517 # 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 3.87000 22.50770 34.26710 23.52195 0.13708 0.00067 214.78508 99.20689 -999.00000 -999.00000 -999.00000 -999.00000 -999.00000 8.64000 22.49480 34.26670 23.52558 0.14451 0.00079 214.68402 99.10719 -999.00000 -999.00000 -999.00000 -999.00000 -999.00000 13.58000 22.42920 34.26630 23.54413 0.18608 0.00075 214.72660 99.03458 -999.00000 -999.00000 -999.00000 -999.00000 -999.00000 18.65000 22.38980 34.26810 23.55691 0.17694 0.00083 214.78396 99.00982 -999.00000 -999.00000 -999.00000 -999.00000 -999.00000 23.61000 22.38000 34.26830 23.56012 0.20160 0.00083 214.81796 99.01046 -999.00000 -999.00000 -999.00000 -999.00000 -999.00000 28.45000 22.37510 34.26800 23.56156 0.19433 0.00087 214.84986 99.01566 -999.00000 -999.00000 -999.00000 -999.00000 -999.00000 33.32000 22.36990 34.26850 23.56369 0.15937 0.00088 214.84039 99.00440 -999.00000 -999.00000 -999.00000 -999.00000 -999.00000 38.51000 22.37000 34.26830 23.56380 0.19360 0.00074 215.11223 99.11057 -999.00000 -999.00000 -999.00000 -999.00000 -999.00000 43.97000 22.35940 34.27250 23.57028 0.22024 0.00088 216.66119 99.53406 -999.00000 -999.00000 -999.00000 -999.00000 -999.00000 48.33000 21.96200 34.42920 23.80103 0.27610 0.00090 218.48537 99.87677 -999.00000 -999.00000 -999.00000 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