1. MOHAVE 2009 Data Workshop II Oct 18-21, 2010 Dale HurstEmrys Hall Allen JordanSam Oltmans Radiosondes & Frostpoint Hygrometers MOHAV E

2. MOHAVE 2009 Data Workshop II Oct 18-21, 2010 RS92 (x2) Imet CFH + O 3 N=6 RS92 (x2) N=8 RS92 Imet FPH + O 3 N=4 RS92 Imet CFH + O 3 N=10 MOHAVE 2009 Balloon Payloads RS92 Data: Milo Corrected April 20, 2010 CFH Data: “FLV” files Sep 15, 2010 FPH Data: Version 4 August 19, 2010

3. MOHAVE 2009 Data Workshop II Oct 18-21, 2010 RS92 Dual Flights: Pressure Differences

4. MOHAVE 2009 Data Workshop II Oct 18-21, 2010 RS92 - IMet: Pressure Differences

5. MOHAVE 2009 Data Workshop II Oct 18-21, 2010 Summary Statistics: Pressure Differences

6. MOHAVE 2009 Data Workshop II Oct 18-21, 2010 RS92 Dual Flights: Temperature Differences

7. MOHAVE 2009 Data Workshop II Oct 18-21, 2010 RS92 - IMet: Temperature Differences

8. MOHAVE 2009 Data Workshop II Oct 18-21, 2010 Summary Statistics: Temperature Differences

9. MOHAVE 2009 Data Workshop II Oct 18-21, 2010 RS92 Dual Flights: Altitude Differences

10. MOHAVE 2009 Data Workshop II Oct 18-21, 2010 RS92 - IMet: Altitude Differences

11. MOHAVE 2009 Data Workshop II Oct 18-21, 2010 Summary Statistics: Altitude Differences

12. MOHAVE 2009 Data Workshop II Oct 18-21, 2010 RS92 Dual Flights: RH Differences

13. MOHAVE 2009 Data Workshop II Oct 18-21, 2010 FP RS92 – RS92: RH Differences

14. MOHAVE 2009 Data Workshop II Oct 18-21, 2010 FP IMet – RS92: RH Differences

15. MOHAVE 2009 Data Workshop II Oct 18-21, 2010 FP RS92 – FP IMet : RH Differences RS92 – Imet Temperatures e W = f(T) RH  1/e W

16. MOHAVE 2009 Data Workshop II Oct 18-21, 2010 Summary Statistics: RH Differences RS92-RS92 FP RS92 -RS92 FP IMet -RS92 FP RS92 -FP IMet

17. MOHAVE 2009 Data Workshop II Oct 18-21, 2010 FP RS92 – FP IMet : H 2 O VMR Differences (%) RS92-Imet Pressures VMR  1/P

18. MOHAVE 2009 Data Workshop II Oct 18-21, 2010 Summary Statistics: H 2 O VMR Differences

19. 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 RH FP +1-2% RH [FP-FP] 2% RH bias from RS92-Imet T bias: RH(FP RS92 ) < RH(FP IMET ) H 2 O VMR: [FP-FP] 1-2% differences from RS92-Imet Pressure differences H 2 O(FP RS92 ) P IMET, especially in stratosphere