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[null,null,null,"HW","2012-10-16"]
[]
["Error terms :",null,"Term value","Each error term when multiplied by its weighting factor gives uncertainties in (D, I, A) in units of (m, radians, radians). "]
["Term","Source","1 sigma","Units","Propagation","Depth","Inclination",null,null,null,"Azimuth","Weighting factors"]
["ISCWSA"]
["AZ","Magnetic declination uncertainty",0.36,"deg","Global",0,0,null,null,null,"p/180 "]
["DBH","Magnetic declination uncertainty",5000,"deg-nT","Global",0,0,null,null,null,"p/180/(B×cosq) "]
["MDI","Dip angle uncertainty, ISCWSA model",0.2,"deg","Global",0,0,null,null,null,"- p/180×sinI×sinAm×(cosI - tanq×sinI×cosAm)/(1 - sin2I×sin2Am) "]
["MFI","Reference field uncertainty, ISCWSA model",130,"nT","Global",0,0,null,null,null,"- sinI×sinAm×(tanq×cosI + sinI×cosAm)/[B×(1 - sin2I×sin2Am)] "]
["BH"]
["AZG","Magnetic declination uncertainty, standard ref",0.6,"deg","Global",0,0,null,null,null,"p/180×(1 - 1/3×(1 - B×abs(sinq)/50000)) "]
["AZGI","Magnetic declination uncertainty, enhanced ref",0.2,"deg","Global",0,0,null,null,null,"p/180×(1 - 0.5×(1 - B×abs(sinq)/50000)) "]
["AZR","Magnetic declination uncertainty, random",0.15,"deg","Random",0,0,null,null,null,"p/180×(1 - 0.6×(B×cosq - 12000)/20000) "]
["MDG","Dip angle uncertainty, standard referencing",0.18,"deg","Global",0,0,null,null,null,"- p/180×sinI×sinAm×(cosI - tanq×sinI×cosAm)/(1 - sin2I×sin2Am) "]
["MDGI","Dip angle uncertainty, enhanced referencing",0.06,"deg","Global",0,0,null,null,null,"- p/180×(1 + 1.5×(1 - B×abs(sinq)/50000))×sinI×sinAm×(cosI - tanq×sinI×cosAm)/(1 - sin2I×sin2Am) "]
["MDR","Dip angle uncertainty, random",0.06,"deg","Random",0,0,null,null,null,"- p/180×sinI×sinAm×(cosI - tanq×sinI×cosAm)/(1 - sin2I×sin2Am) "]
["MFG","Reference field uncertainty, standard referencing",130,"nT","Global",0,0,null,null,null,"- (1 - 1/6.5×(1 - B×abs(sinq)/50000))×sinI×sinAm×(tanq×cosI + sinI×cosAm)/[B×(1 - sin2I×sin2Am)] "]
["MFGI","Reference field uncertainty, enhanced referencing",55,"nT","Global",0,0,null,null,null,"- (1 - 1/11×(B×cosq - 12000)/20000)×sinI×sinAm×(tanq×cosI + sinI×cosAm)/[B×(1 - sin2I×sin2Am)] "]
["MFR","Reference field uncertainty, random",50,"nT","Random",0,0,null,null,null,"- (1 - 0.5×(B×cosq - 12000)/20000)×sinI×sinAm×(tanq×cosI + sinI×cosAm)/[B×(1 - sin2I×sin2Am)] "]
["DB0","Magnetometer field sensor error",76,"nT","Systematic",0,0,null,null,null,"- sinI×sinAm×(tanq×cosI + sinI×cosAm)/[B×(1 - sin2I×sin2Am)] "]
["NOTES"]
["Bias is assumed to be zero."]
["The Dip and Ref Field terms and the ΔB0 term are all specific to the axial interference corrected versions of the models."]
["BH IFR models trigger following changes"]
["IFR1","IFR crustal correction","Remove AZG and replace with AZGI.  "]
["IFR2","IFR crustal plus realtime","Remove AZG and AZR, replace with AZGI.  "]

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