# 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 11:07:06 # original profile science log name: f8146.399.20220420T191126.science.mat # profile date(gmt): 20-Apr-2022 16:14:24 # profile lat: 20.9346 # profile lon: -136.033 # profile number: 399 # 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 3.72000 22.51630 34.33170 23.56851 0.09629 0.00046 240.29614 111.10271 -999.00000 39.22410 61.49597 60.93939 58.78008 8.42000 22.51640 34.32980 23.56730 0.06612 0.00060 249.70507 115.44306 -999.00000 33.71334 53.38047 52.36639 40.92259 12.79000 22.51150 34.33040 23.56939 0.09680 0.00080 255.13790 117.93739 -999.00000 28.72990 45.87765 44.45613 27.91857 18.41000 22.50650 34.33400 23.57386 0.11101 0.00063 256.40250 118.50563 -999.00000 23.06535 37.18766 35.59098 17.15687 23.78000 22.48860 34.34470 23.58736 0.15373 0.00055 247.97152 114.56573 -999.00000 19.61699 31.94470 30.30661 11.45044 28.17000 22.45970 34.39120 23.63108 0.16188 0.00067 239.45038 110.61320 -999.00000 18.00083 29.60281 27.91580 8.80974 33.32000 22.44560 34.39640 23.63931 0.15298 0.00054 237.55420 109.71538 -999.00000 13.31916 22.00384 20.40908 4.95559 38.30000 22.43970 34.40510 23.64787 0.16940 0.00054 233.91842 108.03354 -999.00000 11.18297 18.63098 17.12950 3.30851 43.11000 22.43670 34.40970 23.65248 0.16940 0.00059 229.70360 106.08191 -999.00000 9.54459 16.04012 14.64361 2.28398 48.30000 22.43420 34.41190 23.65514 0.16151 0.00046 228.70990 105.61168 -999.00000 8.15975 13.83774 12.54942 1.57421 53.21000 22.43310 34.41070 23.65482 0.15998 0.00063 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