# 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 11:07:13 # original profile science log name: f8146.434.20220505T021626.science.mat # profile date(gmt): 04-May-2022 23:20:58 # profile lat: 21.298 # profile lon: -136.5085 # profile number: 434 # 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 3.16000 21.89340 34.48910 23.86318 0.12933 0.00058 248.13521 113.56258 -999.00000 9.09004 17.54233 16.69882 15.67241 7.81000 21.87960 34.48990 23.86789 0.12416 0.00055 253.51251 116.00924 -999.00000 7.22547 13.76903 12.67938 9.54734 13.33000 21.88170 34.48890 23.86684 0.11124 0.00054 251.25870 114.94445 -999.00000 5.89956 11.08526 9.93044 5.54055 18.26000 21.84480 34.48950 23.87784 0.17042 0.00063 245.43591 112.21076 -999.00000 5.24958 9.91390 8.75651 3.78523 23.10000 21.82300 34.49080 23.88516 0.13737 0.00054 239.16369 109.18987 -999.00000 4.68625 8.92802 7.83106 2.64278 27.83000 21.66920 34.51130 23.94370 0.16016 0.00075 235.05449 106.96120 -999.00000 4.22493 8.11674 7.11768 1.92415 32.02000 21.43440 34.55360 24.04089 0.16485 0.00076 235.77747 106.99108 -999.00000 3.77908 7.27820 6.34003 1.44722 37.93000 21.27140 34.58930 24.11308 0.21780 0.00054 232.62603 105.35779 -999.00000 3.19143 6.20231 5.36917 0.92751 43.17000 21.24800 34.59340 24.12288 0.24267 0.00042 230.74519 104.46672 -999.00000 2.72786 5.34346 4.62059 0.62338 47.84000 21.22580 34.59900 24.13345 0.26717 0.00045 228.79273 103.56008 -999.00000 2.36420 4.64006 3.99919 0.44272 52.84000 21.22300 34.59800 24.13371 0.23360 0.00067 227.56777 102.99783 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