# 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 11:07:17 # original profile science log name: f8146.453.20220507T080050.science.mat # profile date(gmt): 07-May-2022 04:58:41 # profile lat: 21.3076 # profile lon: -136.4246 # profile number: 453 # 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 4.50000 21.26340 34.54640 24.08088 0.28906 0.00071 218.85797 99.09299 -999.00000 -999.00000 -999.00000 0.00277 -999.00000 8.90000 21.26010 34.54370 24.07996 0.23527 0.00067 217.82888 98.62002 -999.00000 -999.00000 -999.00000 0.00376 -999.00000 14.65000 21.26000 34.54440 24.08082 0.22418 0.00058 217.66357 98.54279 -999.00000 -999.00000 -999.00000 0.00292 -999.00000 18.47333 21.25983 34.54473 24.08132 0.22753 0.00060 217.67760 98.55007 -999.00000 -999.00000 -999.00000 -999.00000 -999.00000 22.29667 21.25967 34.54507 24.08183 0.23088 0.00061 217.69164 98.55734 -999.00000 -999.00000 -999.00000 -999.00000 -999.00000 26.12000 21.25950 34.54540 24.08233 0.23422 0.00062 217.70568 98.56461 -999.00000 -999.00000 -999.00000 0.00334 -999.00000 31.10000 21.26280 34.54460 24.08109 0.21780 0.00071 217.53614 98.48548 -999.00000 -999.00000 -999.00000 0.00238 -999.00000 36.17000 21.26097 34.54537 24.08244 0.22120 0.00073 217.36095 98.40551 -999.00000 -999.00000 -999.00000 -999.00000 -999.00000 41.24000 21.25913 34.54613 24.08379 0.22459 0.00075 217.18577 98.32554 -999.00000 -999.00000 -999.00000 -999.00000 -999.00000 46.31000 21.25730 34.54690 24.08514 0.22799 0.00078 217.01058 98.24558 -999.00000 -999.00000 -999.00000 0.00350 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