57 1001 Gary, Bruce L. (JPL) & Roland Chan (ARC) and Paul Bui (ARC) M/S 246-101; JPL; Pasadena, CA 91109; bgary@jpl.nasa.gov ER-2 Microwave Temperature Profiler (JPL) & Meteorology Measurement System (ARC) STRAT 1 1 1996 12 08 1996 12 08 {FLT DATE & REDUCTION DATE} 0.0 Sequence number 8 {NV = number of primary variables} 1 1 1 1 1 1 1 1 {scale factors for primary variables} 999999 9 99.9 99.9 99.9 999 9 999999 {missing values for primary variables} Date [YYMMDD] Event code: 1=ascent, 2=dip1, 3=dip2, 4=descent Tropopause pressure altitude [km] Positive uncertainty [km] Negative uncertainty [km] Theta of tropopause [K] Source: 0=MMSonly, 1=MMSmostly, 2=MTP&MMS, 3=MTPmostly, 4=MTPonly Date of last revision, in YYMMDD format 17 {number of special comment lines after this line} Following notes refer to trop event "sequence number" in body of this file. 1,2,3,6,7,8,11,13,14,17,18,19: MTP & MMS agree well! 6,7: North/South trop slope; 13.5+/- 0.2 at 40.5 N, 14.3+/- 0.2 37.0 N. 9: Warm layer exists below bottom of dip, placing trop abt 1.1 km below lowest dip alt. 12: MTP trop at 16.0 km requires that MMS cold feature at 16.6 km is matched by a cold feature just below dip that is 0.5 K colder than MMS temp at bottom. 16: Trop above highest altitude reached; used MTP & nearby RAOB for this trop. 19,21: Possible 2nd trop at 16.5 km (3 km above 1st trop). 20: MTP trop within 100 meter thick layer below bottom of dip. 22: Too much horizontal structure for using MMS 23: Dip was 500 meters shy of penetrating trop; good quality MTP data 28: ER-2 likes to come to within 100 meters of tropical trops; we did it again! 30,31: No nav or MMS data for this flt. Trop data is from RAOBs, which are OK for this flt. 33,34: MTP shows two trops for dip, the lower was 550 meters below lowest dip altitude. 35,36: MMS & MTP agree that descent has two trop's (both "tropical"), just like dip. 37,38: MMS & MTP agree; simple trop structure. 18 {number of normal comment lines after this one} Here's a brief tutorial on what follows: 1st column is a monotonic sequence # (also used to reference special comments) 2nd column is date of flight, YYMMDD format 3rd column is code for ascent (1), 1st dip (2), 2nd dip (3) & descent (4) 4th column is tropopause pressure altitude [km] 5th column is +SE of tropopause altitude [km] 6th column is -SE of tropopause altitude [km] 7th column is potential temperature at the tropopause [K] 8th column shows relative reliance on MTP & MMS: where 0=MMS only, 1=MMS mostly, 2=MTP & MMS, 3=MTP mostly, 4=MTP only 9th column is revision date for this line of data 4=MTPonly 1=ASC 3=MTPmstly FLT 2=DIP 2=MTP&MMS DATE 3=DIP TROP 1=MMSmstly Revision Seq# YYMMDD 4=DSC PALT SE+ SE- THETA 0=MMSonly Date 1 960718 1 14.8 0.2 0.3 372 1 960719 2 960718 4 14.9 0.2 0.4 373 1 960808 3 960722 1 14.5 0.2 0.2 371 2 960722 4 960722 2 10.8 1.0 2.0 338 4 960722 5 960722 4 14.7 0.2 0.2 372 2 960722 6 960725 1 13.8 0.2 0.2 361 4 960731 7 960725 4 14.3 0.2 0.2 366 4 960731 8 960730 1 15.5 0.1 0.1 384 3 960807 9 960730 2 14.1 0.4 0.5 383 4 960807 10 960730 4 14.7 0.2 0.2 360 2 960807 11 960801 1 14.7 0.2 0.2 357 2 960801 12 960801 2 16.0 0.2 0.2 369 4 960801 13 960801 4 14.6 0.2 0.2 357 2 960801 14 960803 1 14.9 0.1 0.1 366 1 960803 15 960803 4 14.8 0.1 0.1 364 1 960803 16 960805 1 14.0 1.0 0.5 350 4 960805 17 960807 1 13.4 0.2 0.2 349 4 960808 18 960807 4 13.7 0.2 0.2 352 4 960807 19 960808 1 13.7 0.1 0.1 350 2 960808 20 960808 2 15.1 0.2 0.2 363 4 960808 21 960808 4 13.5 0.1 0.1 349 2 960808 22 960810 1 14.8 0.5 0.5 370 4 960821 23 960810 2 15.1 0.3 0.3 378 4 960821 24 960810 4 15.7 0.3 0.3 382 4 960821 25 960918 1 12.9 0.2 0.2 348 4 960918 26 960918 4 12.9 0.2 0.2 348 4 960918 27 960921 1 12.9 0.3 0.3 350 3 960922 28 960921 2 15.1 0.1 0.2 375 4 960921 29 960921 4 12.8 0.3 0.5 349 3 960922 30 961204 1 11.9 0.2 0.2 332 5 961205 31 961204 4 11.9 0.2 0.2 332 5 961205 32 961206 1 11.0 0.1 0.1 330 2 961207 33 961206 2 17.1 0.1 0.1 390 2 961207 34 961206 2 15.3 0.2 0.2 366 4 961207 35 961206 4 17.4 0.1 0.1 395 2 961207 36 961206 4 15.3 0.1 0.1 366 2 961207 37 961208 1 16.5 0.1 0.1 388 2 961208 38 961208 4 16.5 0.1 0.1 386 2 961208