# 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 11:06:39 # original profile science log name: f8146.270.20220314T140340.science.mat # profile date(gmt): 14-Mar-2022 10:11:59 # profile lat: 20.2428 # profile lon: -135.0304 # profile number: 270 # 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 4.17000 23.11650 34.24380 23.33015 0.25160 0.00058 216.69158 101.14771 -999.00000 -999.00000 -999.00000 -999.00000 -999.00000 9.16000 23.12440 34.24190 23.32672 0.18665 0.00054 216.69351 101.15425 -999.00000 -999.00000 -999.00000 -999.00000 -999.00000 13.57000 23.12450 34.24190 23.32695 0.19710 0.00050 216.66192 101.14107 -999.00000 -999.00000 -999.00000 -999.00000 -999.00000 18.98000 23.12670 34.24240 23.32701 0.15246 0.00058 216.49265 101.06755 -999.00000 -999.00000 -999.00000 -999.00000 -999.00000 24.31000 23.12730 34.24340 23.32792 0.17718 0.00058 216.48325 101.06596 -999.00000 -999.00000 -999.00000 -999.00000 -999.00000 29.21000 23.12960 34.24170 23.32628 0.19360 0.00062 216.55083 101.09669 -999.00000 -999.00000 -999.00000 -999.00000 -999.00000 34.33000 23.13020 34.24140 23.32618 0.19360 0.00071 216.58826 101.11534 -999.00000 -999.00000 -999.00000 -999.00000 -999.00000 39.49000 23.13160 34.24170 23.32631 0.20183 0.00058 216.45742 101.05612 -999.00000 -999.00000 -999.00000 -999.00000 -999.00000 44.04000 23.12940 34.24330 23.32842 0.22734 0.00048 216.40220 101.03272 -999.00000 -999.00000 -999.00000 -999.00000 -999.00000 48.10000 23.13300 34.24160 23.32633 0.21753 0.00068 216.42806 101.04448 -999.00000 -999.00000 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