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"RADIOMETER_DOWN_IRR412", "URI_sensor": "http://vocab.nerc.ac.uk/collection/R25/current/RADIOMETER_DOWN_IRR412/", "maker": "SATLANTIC", "model": "SATLANTIC_OCR504_ICSW", "serial_no": "2279" }, { "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": "2279" }, { "name": "RADIOMETER_PAR", "URI_sensor": "http://vocab.nerc.ac.uk/collection/R25/current/RADIOMETER_PAR/", "maker": "SATLANTIC", "model": "SATLANTIC_OCR504_ICSW", "serial_no": "2279" }, { "name": "FLUOROMETER_CHLA", "URI_sensor": "http://vocab.nerc.ac.uk/collection/R25/current/FLUOROMETER_CHLA/", "maker": "WETLABS", "model": "ECO_FLBB2", "serial_no": "7466" }, { "name": "BACKSCATTERINGMETER_BBP700", "URI_sensor": "http://vocab.nerc.ac.uk/collection/R25/current/BACKSCATTERINGMETER_BBP700/", "maker": "WETLABS", "model": "ECO_FLBB2", "serial_no": "7466" }, { "name": "BACKSCATTERINGMETER_BBP532", "URI_sensor": "http://vocab.nerc.ac.uk/collection/R25/current/BACKSCATTERINGMETER_BBP532/", "maker": "WETLABS", "model": "ECO_FLBB2", "serial_no": "7466" }, { "name": "SPECTROPHOTOMETER_NITRATE", "URI_sensor": "http://vocab.nerc.ac.uk/collection/R25/current/SPECTROPHOTOMETER_NITRATE/", "maker": "SATLANTIC", "model": "SUNA_V2", "serial_no": "1881" }, { "name": "TRANSISTOR_PH", "URI_sensor": "http://vocab.nerc.ac.uk/collection/R25/current/TRANSISTOR_PH/", "maker": "SBE", "model": "SEAFET", "serial_no": "11386" } ], "detailed_parameters": [ { "name": "PSAL", "URI_parameter": "http://vocab.nerc.ac.uk/collection/R03/current/PSAL/", "sensor": "CTD_CNDC", "units": "psu", "accuracy": "0.005", "resolution": "0.001", "predeployment_calib_equation": "none", "predeployment_calib_coefficient": "none", "predeployment_calib_comment": "" }, { "name": "TEMP", "URI_parameter": "http://vocab.nerc.ac.uk/collection/R03/current/TEMP/", "sensor": "CTD_TEMP", "units": "degree_Celsius", "accuracy": "0.002", "resolution": "0.001", "predeployment_calib_equation": "none", "predeployment_calib_coefficient": "none", "predeployment_calib_comment": "" }, { "name": "PRES", "URI_parameter": "http://vocab.nerc.ac.uk/collection/R03/current/PRES/", "sensor": "CTD_PRES", "units": "decibar", "accuracy": "2.4", "resolution": "0.1", "predeployment_calib_equation": "none", "predeployment_calib_coefficient": "none", "predeployment_calib_comment": "" }, { "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": "" }, { "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": "" }, { "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=2.38849E01;ta1=-3.05620E-02;ta2=2.79367E-06;ta3=-4.19026E-09;", "predeployment_calib_comment": "" }, { "name": "DOXY", "URI_parameter": "http://vocab.nerc.ac.uk/collection/R03/current/DOXY/", "sensor": "OPTODE_DOXY", "units": "umol/kg", "accuracy": "8 umol/kg or 10%", "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; PPOX_DOXY=MOLAR_DOXY*(0.20946*(1013.25-pH2Osat))/Tcorr*exp[0.317*PRES/(8.314*(TEMP+273.15))].", "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=-2.528, PhaseCoef1=1, PhaseCoef2=0, PhaseCoef3=0; c0=2.62926E-03,c1=1.11339E-04,c2=2.32656E-06,c3=2.51575E02,c4=-3.20018E-01,c5=-5.36370E01,c6=5.14932E00;D0=24.4543,D1=-67.4509,D2=-4.8489,D3=-5.44e-4;", "predeployment_calib_comment": "" }, { "name": "PPOX_DOXY", "URI_parameter": "http://vocab.nerc.ac.uk/collection/R03/current/PPOX_DOXY/", "sensor": "OPTODE_DOXY", "units": "mbar", "accuracy": "", "resolution": "", "predeployment_calib_equation": "none", "predeployment_calib_coefficient": "none", "predeployment_calib_comment": "" }, { "name": "RAW_DOWNWELLING_IRRADIANCE380", "URI_parameter": "http://vocab.nerc.ac.uk/collection/R03/current/RAW_DOWNWELLING_IRRADIANCE380/", "sensor": "RADIOMETER_DOWN_IRR380", "units": "count", "accuracy": "", "resolution": "", "predeployment_calib_equation": "none", "predeployment_calib_coefficient": "none", "predeployment_calib_comment": "" }, { "name": "RAW_DOWNWELLING_IRRADIANCE412", "URI_parameter": "http://vocab.nerc.ac.uk/collection/R03/current/RAW_DOWNWELLING_IRRADIANCE412/", "sensor": "RADIOMETER_DOWN_IRR412", "units": "count", "accuracy": "", "resolution": "", "predeployment_calib_equation": "none", "predeployment_calib_coefficient": "none", "predeployment_calib_comment": "" }, { "name": "RAW_DOWNWELLING_IRRADIANCE490", "URI_parameter": "http://vocab.nerc.ac.uk/collection/R03/current/RAW_DOWNWELLING_IRRADIANCE490/", "sensor": "RADIOMETER_DOWN_IRR490", "units": "count", "accuracy": "", "resolution": "", "predeployment_calib_equation": "none", "predeployment_calib_coefficient": "none", "predeployment_calib_comment": "" }, { "name": "RAW_DOWNWELLING_PAR", "URI_parameter": "http://vocab.nerc.ac.uk/collection/R03/current/RAW_DOWNWELLING_PAR/", "sensor": "RADIOMETER_PAR", "units": "count", "accuracy": "", "resolution": "", "predeployment_calib_equation": "none", "predeployment_calib_coefficient": "none", "predeployment_calib_comment": "" }, { "name": "DOWN_IRRADIANCE380", "URI_parameter": "http://vocab.nerc.ac.uk/collection/R03/current/DOWN_IRRADIANCE380/", "sensor": "RADIOMETER_DOWN_IRR380", "units": "W/m^2/nm", "accuracy": "", "resolution": "", "predeployment_calib_equation": "DOWN_IRRADIANCE380=0.01*A1_380*(RAW_DOWNWELLING_IRRADIANCE380-A0_380)*lm_380;", "predeployment_calib_coefficient": "A0_380=2147876151.2;A1_380=1.65479310138e-007;lm_380=1.161;", "predeployment_calib_comment": "" }, { "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": "A0_412=2147587102.7;A1_412=2.01634370668e-07;lm_412=1.368;", "predeployment_calib_comment": "" }, { "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": "A0_490=2147985906.6;A1_490=2.04527998424e-07;lm_490=1.365;", "predeployment_calib_comment": "" }, { "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": "A0_PAR=2147383679.2;A1_PAR=3.47604142638e-06;lm_PAR=1.359;", "predeployment_calib_comment": "" }, { "name": "FLUORESCENCE_CHLA", "URI_parameter": "http://vocab.nerc.ac.uk/collection/R03/current/FLUORESCENCE_CHLA/", "sensor": "FLUOROMETER_CHLA", "units": "count", "accuracy": "", "resolution": "", "predeployment_calib_equation": "none", "predeployment_calib_coefficient": "none", "predeployment_calib_comment": "" }, { "name": "BETA_BACKSCATTERING700", "URI_parameter": "http://vocab.nerc.ac.uk/collection/R03/current/BETA_BACKSCATTERING700/", "sensor": "BACKSCATTERINGMETER_BBP700", "units": "count", "accuracy": "", "resolution": "", "predeployment_calib_equation": "none", "predeployment_calib_coefficient": "none", "predeployment_calib_comment": "" }, { "name": "BETA_BACKSCATTERING532", "URI_parameter": "http://vocab.nerc.ac.uk/collection/R03/current/BETA_BACKSCATTERING532/", "sensor": "BACKSCATTERINGMETER_BBP532", "units": "count", "accuracy": "", "resolution": "", "predeployment_calib_equation": "none", "predeployment_calib_coefficient": "none", "predeployment_calib_comment": "" }, { "name": "CHLA", "URI_parameter": "http://vocab.nerc.ac.uk/collection/R03/current/CHLA/", "sensor": "FLUOROMETER_CHLA", "units": "mg/m3", "accuracy": "0.08 mg/m3", "resolution": "0.025 mg/m3", "predeployment_calib_equation": "CHLA=(FLUORESCENCE_CHLA-DARK_CHLA)*SCALE_CHLA;", "predeployment_calib_coefficient": "SCALE_CHLA=0.0121;DARK_CHLA=46;", "predeployment_calib_comment": "" }, { "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=3.060e-06;khi=1.076;BETASW700 (contribution of pure sea water) is calculated at 124 deg;", "predeployment_calib_comment": "" }, { "name": "BBP532", "URI_parameter": "http://vocab.nerc.ac.uk/collection/R03/current/BBP532/", "sensor": "BACKSCATTERINGMETER_BBP532", "units": "m-1", "accuracy": "", "resolution": "", "predeployment_calib_equation": "BBP532=2*pi*khi *((BETA_BACKSCATTERING532-DARK_BACKSCATTERING532)*SCALE_BACKSCATTERING532-BETASW532);", "predeployment_calib_coefficient": "DARK_BACKSCATTERING532=50;SCALE_BACKSCATTERING532=6.793e-06;khi=1.076;BETASW532 (contribution of pure sea water) is calculated at 124 deg;", "predeployment_calib_comment": "" }, { "name": "TEMP_NITRATE", "URI_parameter": "http://vocab.nerc.ac.uk/collection/R03/current/TEMP_NITRATE/", "sensor": "SPECTROPHOTOMETER_NITRATE", "units": "degC", "accuracy": "", "resolution": "", "predeployment_calib_equation": "none", "predeployment_calib_coefficient": "none", "predeployment_calib_comment": "" }, { "name": "TEMP_SPECTROPHOTOMETER_NITRATE", "URI_parameter": "http://vocab.nerc.ac.uk/collection/R03/current/TEMP_SPECTROPHOTOMETER_NITRATE/", "sensor": "SPECTROPHOTOMETER_NITRATE", "units": "degC", "accuracy": "", "resolution": "", "predeployment_calib_equation": "none", "predeployment_calib_coefficient": "none", "predeployment_calib_comment": "" }, { "name": "HUMIDITY_NITRATE", "URI_parameter": "http://vocab.nerc.ac.uk/collection/R03/current/HUMIDITY_NITRATE/", "sensor": "SPECTROPHOTOMETER_NITRATE", "units": "percent", "accuracy": "", "resolution": "", "predeployment_calib_equation": "none", "predeployment_calib_coefficient": "none", "predeployment_calib_comment": "" }, { "name": "UV_INTENSITY_DARK_NITRATE", "URI_parameter": "http://vocab.nerc.ac.uk/collection/R03/current/UV_INTENSITY_DARK_NITRATE/", "sensor": "SPECTROPHOTOMETER_NITRATE", "units": "count", "accuracy": "", "resolution": "", "predeployment_calib_equation": "none", "predeployment_calib_coefficient": "none", "predeployment_calib_comment": "" }, { "name": "FIT_ERROR_NITRATE", "URI_parameter": "http://vocab.nerc.ac.uk/collection/R03/current/FIT_ERROR_NITRATE/", "sensor": "SPECTROPHOTOMETER_NITRATE", "units": "dimensionless", "accuracy": "", "resolution": "", "predeployment_calib_equation": "none", "predeployment_calib_coefficient": "none", "predeployment_calib_comment": "" }, { "name": "UV_INTENSITY_NITRATE", "URI_parameter": "http://vocab.nerc.ac.uk/collection/R03/current/UV_INTENSITY_NITRATE/", "sensor": "SPECTROPHOTOMETER_NITRATE", "units": "count", "accuracy": "", "resolution": "", "predeployment_calib_equation": "none", "predeployment_calib_coefficient": "none", "predeployment_calib_comment": "" }, { "name": "NITRATE", "URI_parameter": "http://vocab.nerc.ac.uk/collection/R03/current/NITRATE/", "sensor": "SPECTROPHOTOMETER_NITRATE", "units": "umol/kg", "accuracy": "2 umol/kg", "resolution": "0.01 umol/kg", "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": "" }, { "name": "VRS_PH", "URI_parameter": "http://vocab.nerc.ac.uk/collection/R03/current/VRS_PH/", "sensor": "TRANSISTOR_PH", "units": "volt", "accuracy": "", "resolution": "", "predeployment_calib_equation": "none", "predeployment_calib_coefficient": "none", "predeployment_calib_comment": "" }, { "name": "PH_IN_SITU_FREE", "URI_parameter": "http://vocab.nerc.ac.uk/collection/R03/current/PH_IN_SITU_FREE/", "sensor": "TRANSISTOR_PH", "units": "dimensionless", "accuracy": "0.005", "resolution": "0.0004", "predeployment_calib_equation": "k0T=k0+k2*TEMP; pcorr=f1*PRES+f2*PRES^2+f3*PRES^3+f4*PRES^4+f5*PRES^5+f6*PRES^6; 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=-1.2813;k2=-0.00092084;f0=-0.0017554;f1=8.7373e-06;f2=-1.1362e-08;f3=8.9705e-12;f4=-3.8505e-15;f5=8.3605e-19;f6=-7.1269e-23;", "predeployment_calib_comment": "" }, { "name": "PH_IN_SITU_TOTAL", "URI_parameter": "http://vocab.nerc.ac.uk/collection/R03/current/PH_IN_SITU_TOTAL/", "sensor": "TRANSISTOR_PH", "units": "dimensionless", "accuracy": "0.005", "resolution": "0.0004", "predeployment_calib_equation": "k0T=k0+k2*TEMP; pcorr=f1*PRES+f2*PRES^2+f3*PRES^3+f4*PRES^4+f5*PRES^5+f6*PRES^6; 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=-1.2813;k2=-0.00092084;f0=-0.0017554;f1=8.7373e-06;f2=-1.1362e-08;f3=8.9705e-12;f4=-3.8505e-15;f5=8.3605e-19;f6=-7.1269e-23;", "predeployment_calib_comment": "" } ], "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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