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"http://vocab.nerc.ac.uk/collection/R25/current/CTD_TEMP/", "maker": "SBE", "model": "SBE41CP_V7.2.5", "serial_no": "11294" }, { "name": "CTD_PRES", "URI_sensor": "http://vocab.nerc.ac.uk/collection/R25/current/CTD_PRES/", "maker": "DRUCK", "model": "DRUCK_2900PSIA", "serial_no": "10971293" }, { "name": "OPTODE_DOXY", "URI_sensor": "http://vocab.nerc.ac.uk/collection/R25/current/OPTODE_DOXY/", "maker": "AANDERAA", "model": "AANDERAA_OPTODE_4330", "serial_no": "2982" }, { "name": "FLUOROMETER_CHLA", "URI_sensor": "http://vocab.nerc.ac.uk/collection/R25/current/FLUOROMETER_CHLA/", "maker": "WETLABS", "model": "ECO_FLBBCD", "serial_no": "4989" }, { "name": "BACKSCATTERINGMETER_BBP700", "URI_sensor": "http://vocab.nerc.ac.uk/collection/R25/current/BACKSCATTERINGMETER_BBP700/", "maker": "WETLABS", "model": "ECO_FLBBCD", "serial_no": "4905" }, { "name": "FLUOROMETER_CDOM", "URI_sensor": "http://vocab.nerc.ac.uk/collection/R25/current/FLUOROMETER_CDOM/", "maker": "WETLABS", "model": "ECO_FLBBCD", "serial_no": "4905" }, { "name": "RADIOMETER_DOWN_IRR412", "URI_sensor": "http://vocab.nerc.ac.uk/collection/R25/current/RADIOMETER_DOWN_IRR412/", "maker": "SATLANTIC", "model": "SATLANTIC_OCR504_ICSW", "serial_no": "0574" }, { "name": "SPECTROPHOTOMETER_NITRATE", "URI_sensor": "http://vocab.nerc.ac.uk/collection/R25/current/SPECTROPHOTOMETER_NITRATE/", "maker": "SATLANTIC", "model": "SUNA_V2", "serial_no": "1219" }, { "name": "TRANSISTOR_PH", "URI_sensor": "http://vocab.nerc.ac.uk/collection/R25/current/TRANSISTOR_PH/", "maker": "SBE", "model": "SEAFET", "serial_no": "10288" }, { "name": "RADIOMETER_DOWN_IRR443", "URI_sensor": "http://vocab.nerc.ac.uk/collection/R25/current/RADIOMETER_DOWN_IRR443/", "maker": "SATLANTIC", "model": "SATLANTIC_OCR504_ICSW", "serial_no": "0574" }, { "name": "RADIOMETER_DOWN_IRR490", "URI_sensor": "http://vocab.nerc.ac.uk/collection/R25/current/RADIOMETER_DOWN_IRR490/", "maker": "SATLANTIC", "model": "SATLANTIC_OCR504_ICSW", "serial_no": "0574" }, { "name": "RADIOMETER_PAR", "URI_sensor": "http://vocab.nerc.ac.uk/collection/R25/current/RADIOMETER_PAR/", "maker": "SATLANTIC", "model": "SATLANTIC_OCR504_ICSW", "serial_no": "0574" } ], "detailed_parameters": [ { "name": "PSAL", "URI_parameter": "http://vocab.nerc.ac.uk/collection/R03/current/PSAL/", "sensor": "CTD_CNDC", "units": "psu", "accuracy": "0.005 psu", "resolution": "0.001 psu", "predeployment_calib_equation": "none", "predeployment_calib_coefficient": "none", "predeployment_calib_comment": "none" }, { "name": "TEMP", "URI_parameter": "http://vocab.nerc.ac.uk/collection/R03/current/TEMP/", "sensor": "CTD_TEMP", "units": "degC (ITS-90)", "accuracy": "0.002 degC", "resolution": "0.001 degC", "predeployment_calib_equation": "none", "predeployment_calib_coefficient": "none", "predeployment_calib_comment": "none" }, { "name": "PRES", "URI_parameter": "http://vocab.nerc.ac.uk/collection/R03/current/PRES/", "sensor": "CTD_PRES", "units": "dbar", "accuracy": "1.5%", "resolution": "0.1 dbar", "predeployment_calib_equation": "none", "predeployment_calib_coefficient": "none", "predeployment_calib_comment": "none" }, { "name": "DOXY", "URI_parameter": "http://vocab.nerc.ac.uk/collection/R03/current/DOXY/", "sensor": "OPTODE_DOXY", "units": "umol/kg", "accuracy": "8 umol/kg", "resolution": "1 umol/kg", "predeployment_calib_equation": "TPHASE_DOXY=C1PHASE_DOXY-C2PHASE_DOXY; Phase_Pcorr=TPHASE_DOXY+Pcoef1*PRES/1000; CalPhase=PhaseCoef0+PhaseCoef1*Phase_Pcorr+PhaseCoef2*Phase_Pcorr^2+PhaseCoef3*Phase_Pcorr^3; MOLAR_DOXY=[((c3+c4*TEMP_DOXY)/(c5+c6*CalPhase))-1]/Ksv; Ksv=c0+c1*TEMP_DOXY+c2*TEMP_DOXY^2; O2=MOLAR_DOXY*Scorr*Pcorr; Scorr=A*exp[PSAL*(B0+B1*Ts+B2*Ts^2+B3*Ts^3)+C0*PSAL^2]; A=[(1013.25-pH2O(TEMP,Spreset))/(1013.25-pH2O(TEMP,PSAL))]; pH2O(TEMP,S)=1013.25*exp[D0+D1*(100/(TEMP+273.15))+D2*ln((TEMP+273.15)/100)+D3*S]; Pcorr=1+((Pcoef2*TEMP+Pcoef3)*PRES)/1000; Ts=ln[(298.15-TEMP)/(273.15+TEMP)]; DOXY=O2/rho, where rho is the potential density [kg/L] calculated from CTD data;", "predeployment_calib_coefficient": "Spreset=0;Pcoef1=0.1,Pcoef2=0.00022,Pcoef3=0.0419;B0=-6.24523e-3, B1=-7.37614e-3, B2=-1.03410e-2, B3=-8.17083e-3; C0=-4.88682e-7; PhaseCoef0=0.7714, PhaseCoef1=1, PhaseCoef2=0, PhaseCoef3=0;c0=2.74774E-03,c1=1.20082E-04,c2=2.23411E-06,c3=2.16928E02,c4=-2.41917E-01,c5=-4.43689E01,c6=4.27199E00;D0=24.4543,D1=-67.4509,D2=-4.8489,D3=-5.44e-4;", "predeployment_calib_comment": "none" }, { "name": "C1PHASE_DOXY", "URI_parameter": "http://vocab.nerc.ac.uk/collection/R03/current/C1PHASE_DOXY/", "sensor": "OPTODE_DOXY", "units": "degree", "accuracy": "", "resolution": "", "predeployment_calib_equation": "none", "predeployment_calib_coefficient": "none", "predeployment_calib_comment": "none" }, { "name": "C2PHASE_DOXY", "URI_parameter": "http://vocab.nerc.ac.uk/collection/R03/current/C2PHASE_DOXY/", "sensor": "OPTODE_DOXY", "units": "degree", "accuracy": "", "resolution": "", "predeployment_calib_equation": "none", "predeployment_calib_coefficient": "none", "predeployment_calib_comment": "none" }, { "name": "TEMP_DOXY", "URI_parameter": "http://vocab.nerc.ac.uk/collection/R03/current/TEMP_DOXY/", "sensor": "OPTODE_DOXY", "units": "degC", "accuracy": "0.03 degC", "resolution": "0.01 degC", "predeployment_calib_equation": "temp_doxy=1/(ta0+(ta1*L)+(ta2*L^2)+(ta3*L^3))-273.15;", "predeployment_calib_coefficient": "ta0=2.60787E01;ta1=-3.09723E-02;ta2=3.04188E-06;ta3=-4.46989E-09;", "predeployment_calib_comment": "none" }, { "name": "CHLA", "URI_parameter": "http://vocab.nerc.ac.uk/collection/R03/current/CHLA/", "sensor": "FLUOROMETER_CHLA", "units": "mg/m^3", "accuracy": "0.08 mg/m^3", "resolution": "0.025 mg/m^3", "predeployment_calib_equation": "CHLA=(FLUORESCENCE_CHLA-DARK_CHLA)*SCALE_CHLA;", "predeployment_calib_coefficient": "SCALE_CHLA=0.0073;DARK_CHLA=48;", "predeployment_calib_comment": "none" }, { "name": "BBP700", "URI_parameter": "http://vocab.nerc.ac.uk/collection/R03/current/BBP700/", "sensor": "BACKSCATTERINGMETER_BBP700", "units": "m^-1", "accuracy": "", "resolution": "", "predeployment_calib_equation": "BBP700=2*pi*khi *((BETA_BACKSCATTERING700-DARK_BACKSCATTERING700)*SCALE_BACKSCATTERING700-BETASW700);", "predeployment_calib_coefficient": "DARK_BACKSCATTERING700=48;SCALE_BACKSCATTERING700=1.674E-06;khi=1.076;BETASW700 (contribution of pure sea water) is calculated at 124 deg;", "predeployment_calib_comment": "Sullivan et al., 2013, Zhang et al., 2009, BETASW700 is the contribution by the pure seawater at 700nm, requiring temperature, salinity and using a depolarization of 0.039, its default value. the script can be found at http://doi.org/10.17882/42916. Reprocessed from the file provided by Andrew Bernard (Seabird) following ADMT18. This file is accessible at http://doi.org/10.17882/54520" }, { "name": "CDOM", "URI_parameter": "http://vocab.nerc.ac.uk/collection/R03/current/CDOM/", "sensor": "FLUOROMETER_CDOM", "units": "ppb", "accuracy": "", "resolution": "", "predeployment_calib_equation": "CDOM=(FLUORESCENCE_CDOM-DARK_CDOM)*SCALE_CDOM;", "predeployment_calib_coefficient": "SCALE_CDOM=0.0903;DARK_CDOM=45;", "predeployment_calib_comment": "none" }, { "name": "DOWN_IRRADIANCE412", "URI_parameter": "http://vocab.nerc.ac.uk/collection/R03/current/DOWN_IRRADIANCE412/", "sensor": "RADIOMETER_DOWN_IRR412", "units": "W/m^2/nm", "accuracy": "", "resolution": "", "predeployment_calib_equation": "DOWN_IRRADIANCE412=0.01*A1_412*(RAW_DOWNWELLING_IRRADIANCE412-A0_412)*lm_412;", "predeployment_calib_coefficient": "A1_412=1.98496806226e-007;A0_412=2149363417.4;lm_412=1.368;", "predeployment_calib_comment": "none" }, { "name": "NITRATE", "URI_parameter": "http://vocab.nerc.ac.uk/collection/R03/current/NITRATE/", "sensor": "SPECTROPHOTOMETER_NITRATE", "units": "umol/kg", "accuracy": "2", "resolution": "0.01", "predeployment_calib_equation": "The sensor returns UV_INTENSITY_DARK_NITRATE and UV_INTENSITY_NITRATE(Ntrans), a subset of continuous pixels of UV_INTENSITY_NITRATE(N), N = 1 to 256. The Ntrans indices span the interval [PIXEL_START, PIXEL_END] subset of the original array (1 to 256). Thus Ntrans(i) refers to pixel N = (PIXEL_START+i-1). PIXEL_START and PIXEL_END are defined from calibration data so that the [PIXEL_START, PIXEL_END] interval is the smallest interval of pixels that correspond to the [217 nm, 250 nm] interval of wavelengths. Only a subset of the [PIXEL_START, PIXEL_END] interval is processed to compute nitrate concentration. This subset is defined as the [PIXEL_FIT_START, PIXEL_FIT_END] interval which is the smallest interval of pixels that correspond to the [217 nm, 240 nm] interval of wavelengths (thus PIXEL_FIT_START = PIXEL_START). In the following equations the data are computed for each pixel R = PIXEL_FIT_START to PIXEL_FIT_END; ABSORBANCE_SW(R)=-log10[(UV_INTENSITY_NITRATE(R)-UV_INTENSITY_DARK_NITRATE)/UV_INTENSITY_REF_NITRATE(R)]; F(R,T)=(A+B*T)*exp[(C+D*T)*(OPTICAL_WAVELENGTH_UV(R)-OPTICAL_WAVELENGTH_OFFSET)]; E_SWA_INSITU(R)=E_SWA_NITRATE(R)*F(R,TEMP)/F(R,TEMP_CAL_NITRATE); ABSORBANCE_COR_NITRATE(R)=ABSORBANCE_SW(R)-(E_SWA_INSITU(R)*PSAL)*[1-(0.026*PRES/1000)]; Perform a multilinear regression to get MOLAR_NITRATE with estimated ABSORBANCE_COR_NITRATE(R) with ABSORBANCE_COR_NITRATE(R)=BASELINE_INTERCEPT+BASELINE_SLOPE*OPTICAL_WAVELENGTH_UV(R)+MOLAR_NITRATE*E_NITRATE(R); NITRATE=MOLAR_NITRATE/rho, where rho is the potential density [kg/L] calculated from CTD data.", "predeployment_calib_coefficient": "n/a", "predeployment_calib_comment": "none" }, { "name": "PH_IN_SITU_TOTAL", "URI_parameter": "http://vocab.nerc.ac.uk/collection/R03/current/PH_IN_SITU_TOTAL/", "sensor": "PH_IN_SITU_TOTAL", "units": "dimensionless", "accuracy": "0.05", "resolution": "0.0001", "predeployment_calib_equation": "k0T=k0+k2*TEMP; pcorr=f1*PRES+f2*PRES^2+f3*PRES^3+f4*PRES^4; k0TP=k0T+pcorr; Tk=273.15+TEMP; Cltotal=(0.99889/35.453*PSAL/1.80655)/(1-0.001005*PSAL); ADH=3.4286e-6*TEMP^2+6.7524e-4*TEMP+0.49172143; IonS=19.924*PSAL/(1000-1.005*PSAL); log10gammaHCl=[-ADH*sqrt(IonS)/(1+1.394*sqrt(IonS))]+[(0.08885-0.000111*TEMP)*IonS]; deltaVHCl=17.85+0.1044*TEMP-0.001316*TEMP^2; log10gammaHCLtP=log10gammaHCl+[deltaVHCl*(PRES/10)/(R*Tk*ln(10))/2/10]; PH_IN_SITU_FREE=[(VRS_PH-k0TP)/(R*Tk/F*ln(10))]+[ln(Cltotal)/ln(10)]+2*log10gammaHCLtP-log10(1-0.001005*PSAL); Stotal=(0.14/96.062)*(PSAL/1.80655); Khso4=exp{[-4276.1/Tk+141.328-23.093*ln(Tk)]+[(-13856/Tk+324.57-47.986*ln(Tk))*IonS^0.5]+[(35474/Tk-771.54+114.723*ln(Tk))*IonS]-[2698/Tk*IonS^1.5]+[1776/Tk*IonS^2]+ln(1-0.001005*PSAL)}; deltaVHSO4=-18.03+0.0466*TEMP+0.000316*TEMP^2; KappaHSO4=(-4.53+0.09*TEMP)/1000; lnKhso4fac=(-deltaVHSO4+0.5*KappaHSO4*(PRES/10))*(PRES/10)/(R*10*Tk); Khso4TPS=Khso4*exp(lnKhso4fac); PH_IN_SITU_TOTAL=PH_IN_SITU_FREE-log10(1+Stotal/Khso4TPS)", "predeployment_calib_coefficient": "R=8.31446;F=96485;k0=-1.40937;k2=-1.1005E-03;f0=-1.7256E-03;f1=1.046E-05;f2=-2.15E-08;f3=2.6984E-11;f4=-1.8583E-14;f5=6.5411E-18;f6=-9.1874E-22;", "predeployment_calib_comment": "" }, { "name": "DOWN_IRRADIANCE443", "URI_parameter": "http://vocab.nerc.ac.uk/collection/R03/current/DOWN_IRRADIANCE443/", "sensor": "RADIOMETER_DOWN_IRR443", "units": "W/m^2/nm", "accuracy": "", "resolution": "", "predeployment_calib_equation": "DOWN_IRRADIANCE443=0.01*A1_443*(RAW_DOWNWELLING_IRRADIANCE443-A0_443)*lm_443;", "predeployment_calib_coefficient": "A1_443=2.0762633919e-007;A0_443=2146673786.1;lm_443=1.410;", "predeployment_calib_comment": "none" }, { "name": "DOWN_IRRADIANCE490", "URI_parameter": "http://vocab.nerc.ac.uk/collection/R03/current/DOWN_IRRADIANCE490/", "sensor": "RADIOMETER_DOWN_IRR490", "units": "W/m^2/nm", "accuracy": "", "resolution": "", "predeployment_calib_equation": "DOWN_IRRADIANCE490=0.01*A1_490*(RAW_DOWNWELLING_IRRADIANCE490-A0_490)*lm_490;", "predeployment_calib_coefficient": "A1_490=2.16568372864e-007;A0_490=2147690694.7;lm_490=1.365;", "predeployment_calib_comment": "none" }, { "name": "DOWNWELLING_PAR", "URI_parameter": "http://vocab.nerc.ac.uk/collection/R03/current/DOWNWELLING_PAR/", "sensor": "RADIOMETER_PAR", "units": "microMoleQuanta/m^2/sec", "accuracy": "", "resolution": "", "predeployment_calib_equation": "DOWNWELLING_PAR=A1_PAR*(RAW_DOWNWELLING_PAR-A0_PAR)*lm_PAR;", "predeployment_calib_coefficient": "A1_PAR=3.53832605926e-006;A0_PAR=2147181156.8;lm_PAR=1.359;", "predeployment_calib_comment": "none" } ], "sci:doi": "10.17882/42182", "sci:citation": "Argo (2024). Argo float data and metadata from Global Data Assembly Centre (Argo GDAC). 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