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MOHAVE. Radiosondes & Frostpoint Hygrometers. Dale Hurst Emrys Hall Allen Jordan Sam Oltmans. MOHAVE 2009 Data Workshop II Oct 18-21, 2010. MOHAVE 2009 Balloon Payloads. RS92 (x2) Imet CFH + O 3. RS92 Imet FPH + O 3. RS92 Imet CFH + O 3. RS92 (x2). N=6. N=8. N=4. N=10.
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MOHAVE Radiosondes & Frostpoint Hygrometers Dale Hurst Emrys Hall Allen Jordan Sam Oltmans MOHAVE 2009 Data Workshop II Oct 18-21, 2010
MOHAVE 2009 Balloon Payloads RS92 (x2) Imet CFH + O3 RS92 Imet FPH + O3 RS92 Imet CFH + O3 RS92 (x2) N=6 N=8 N=4 N=10 RS92 Data: Milo Corrected April 20, 2010 CFH Data: “FLV” files Sep 15, 2010 FPH Data: Version 4 August 19, 2010 MOHAVE 2009 Data Workshop II Oct 18-21, 2010
RS92 Dual Flights: Pressure Differences MOHAVE 2009 Data Workshop II Oct 18-21, 2010
RS92 - IMet: Pressure Differences MOHAVE 2009 Data Workshop II Oct 18-21, 2010
Summary Statistics: Pressure Differences MOHAVE 2009 Data Workshop II Oct 18-21, 2010
RS92 Dual Flights: Temperature Differences MOHAVE 2009 Data Workshop II Oct 18-21, 2010
RS92 - IMet: Temperature Differences MOHAVE 2009 Data Workshop II Oct 18-21, 2010
Summary Statistics: Temperature Differences MOHAVE 2009 Data Workshop II Oct 18-21, 2010
RS92 Dual Flights: Altitude Differences MOHAVE 2009 Data Workshop II Oct 18-21, 2010
RS92 - IMet: Altitude Differences MOHAVE 2009 Data Workshop II Oct 18-21, 2010
Summary Statistics: Altitude Differences MOHAVE 2009 Data Workshop II Oct 18-21, 2010
RS92 Dual Flights: RH Differences MOHAVE 2009 Data Workshop II Oct 18-21, 2010
FPRS92 – RS92: RH Differences MOHAVE 2009 Data Workshop II Oct 18-21, 2010
FPIMet – RS92: RH Differences MOHAVE 2009 Data Workshop II Oct 18-21, 2010
FPRS92 – FPIMet: RH Differences RS92 – Imet Temperatures eW = f(T) RH a 1/eW MOHAVE 2009 Data Workshop II Oct 18-21, 2010
Summary Statistics: RH Differences RS92-RS92 FPRS92-RS92 FPIMet-RS92 FPRS92-FPIMet MOHAVE 2009 Data Workshop II Oct 18-21, 2010
FPRS92 – FPIMet: H2O VMR Differences (%) RS92-Imet Pressures VMR a 1/P MOHAVE 2009 Data Workshop II Oct 18-21, 2010
Summary Statistics: H2O VMR Differences MOHAVE 2009 Data Workshop II Oct 18-21, 2010
Summary of the summaries! Pressure: [RS92-RS92] < 1 hPa for all but 3 of 14 flights [RS92-IMet] 8 of 20 flights with inconsistent differences of 5-25 hPa Temperature: [RS92-RS92] < 0.5°C for all but 2 of 14 flights [RS92-IMet] 16 of 20 have consistent bias of about 0.5°C (RS92 > Imet) Altitude: [RS92-RS92] almost all differences < 100 m for 14 flights [RS92-IMet] majority of differences < 100 m, but some as large as 600 m RH: Imet data is garbage [RS92-RS92] < 1% RH for all but 3 of 14 flights [FP-RS92] most flights agree to within 2% RH, but RHFP +1-2% RH [FP-FP] 2% RH bias from RS92-Imet T bias: RH(FPRS92) < RH(FPIMET) H2O VMR: [FP-FP] 1-2% differences from RS92-Imet Pressure differences H2O(FPRS92) < H2O(FPIMET) because PRS92> PIMET, especially in stratosphere MOHAVE 2009 Data Workshop II Oct 18-21, 2010