# 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 11:07:14 # original profile science log name: f8146.438.20220505T123424.science.mat # profile date(gmt): 05-May-2022 09:38:59 # profile lat: 21.303 # profile lon: -136.5026 # profile number: 438 # 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 2.82000 21.29200 34.52080 24.05350 0.16814 0.00058 219.68336 99.49850 -999.00000 -999.00000 -999.00000 -999.00000 -999.00000 7.71000 21.28990 34.52120 24.05463 0.19958 0.00064 218.99888 99.18442 -999.00000 -999.00000 -999.00000 -999.00000 -999.00000 11.96000 21.28680 34.52080 24.05540 0.19903 0.00054 218.86123 99.12069 -999.00000 -999.00000 -999.00000 -999.00000 -999.00000 17.56000 21.29400 34.52120 24.05402 0.19632 0.00056 218.95806 99.15673 -999.00000 -999.00000 -999.00000 -999.00000 -999.00000 23.16000 21.30120 34.52160 24.05265 0.19360 0.00058 219.05490 99.19275 -999.00000 -999.00000 -999.00000 -999.00000 -999.00000 28.27000 21.24540 34.56040 24.09771 0.18501 0.00063 219.34935 99.27785 -999.00000 -999.00000 -999.00000 -999.00000 -999.00000 32.78000 21.23570 34.58480 24.11916 0.18467 0.00067 219.52865 99.34999 -999.00000 -999.00000 -999.00000 -999.00000 -999.00000 37.85000 21.20610 34.59840 24.13786 0.21780 0.00062 219.64872 99.38056 -999.00000 -999.00000 -999.00000 -999.00000 -999.00000 43.01000 21.19780 34.60070 24.14214 0.22608 0.00062 219.49648 99.30316 -999.00000 -999.00000 -999.00000 -999.00000 -999.00000 47.53000 21.20040 34.60190 24.14258 0.24200 0.00050 219.41518 99.26870 -999.00000 -999.00000 -999.00000 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