***********************************************************************************: * * daily log book :::::::: radiosonde observation ::::::: * * place: EGAt tower 16 deg 58.38 min N, 99deg 25.78 min E, 121 m * folder name convention: YMMDD+a, b, c, d, e, f... * (e.g. 90215b=2nd flight of 1999/2/15) * Meteorological ground data: * P from PAM or P@90m (of CR10)-10 hPa * Ta (deg) &RH (%) Univ. Kyoto asman type psychrometer * V (knots), WD (deg) from PAM or SAT @90 m * V@2m=V@90mx(ln2/z0)/(ln(90/z0)=V@90mx0.22 (for z0=0.7m) * V@2m (knots)=v@2m (m/s)* 2 ::: V (knots)=0.44*V@90m (m/s) * PAM stopped operation from 2/17-> * GILL sonic raw data acquisition started on 2/19 * PAM CR10 data acquisition started on 2/20 ***********************************************************************************: FL1 N/A FL2 99/2/15 16:44 folder: 90215b p=997.71, Ta=34.5, RH=33. Clear but hazy sky. No clouds FL3 N/A FL4 99/2/16 9:55:45 folder:90216b TRMM(9:38) p=1003.15 (vs 1010 hPa of sonde) Ta=28.5, RH=51.5, V=0.75 knot, WD=65 Clear, hazy sky w/strong wind. strong sunshine Slow ascent w/100g balloon. stopped at 1500 m FL5 99/2/16 10:37:30 folder:90216c Landsat(10:23) p=1003.24(vs 1010 hPa of sonde), Ta=30.7, RH=46, V=0.44 knot, wd=133 No clouds. Hazy sky w/strong sunshine. Up to 27 km. FL6 99/2/16 13:26:30 folder:90216d p=1000.96 (vs 10006.17hPa of sonde; 1001.69 input) Ta=34.6, RH=45, V=1.7, wd=116 Cu0.2 in E-SE horizon, Strong sunshine FL7 N/A FL8 99/2/16 15:49:30 folder:90216f p=998.29, ta=34.2, RH=34.5, V=0.72, wd=217 Clear but hazy sky. strong sunshine up to 28 km (14hPa) FL9 99/2/17 8:50:00 folder:90217A NOAA (8:37) p=1000.57, Ta=25.5, RH=64, V=0.924, WD=42 ac 0.3 to SE horizen, Cu <0.1 S-zeneith, Sun coming through stopped at 20 km (55hpa) FL10 99/2/17 10:18:30 folder:90217b TRMM (10:00) p=1005.95, Ta=28.7, RH=52 (vs 38% of sonde), v=0.748, WD=65 Clear but hazy sky, strong sunshine. stopped at 29 km (15hPa) Fl11 99/2/17 12:10:30 folder:90217c p=999.15, Ta=34.2, RH=36, V=1.23, WD=207 Ac<0.1 in SE horizen, <<0.01 small Cu top. stopped at 27 km (18hPa) FL12 99/2/17 13:59:00 folder:90217D p=996.32, Ta=36.0, RH=33, V=0, WD=164 small Cu in SW&NE <0.1, strong sunshine stopped at 28 km (15hPa) FL13 99/2/17 13:44:00 folder:90217E p=994.37, Ta=35.7, RH=32 (vs 23% of sonde), v=1.716, WD=130 Ac 0.1 to W, Cu 0.2 S-SW stopped at 27 km (17hPa) FL14 99/2/18 9:33:00 folder:90218B P=1000.0, Ta=27.2, RH=63, V=0.202, WD=72.4 Clear but hazy sky, sun shining strongly. stopped at 29 km (13hpa) PAM not in operation on this day FL15 99/2/18 11:21:00 folder: 90218c p=999.84, Ta=33.4, RH=39.9, V=0.748, WD=350 clear but hazy sky, stromg sunshine BAD SONDE. BAD DATA FL16 99/2/18 11:59:00 folder: 90218D p=999.04, Ta=34.0, RH=38, V=0.75, WD=78.8 Clear but hazy sky. Strong sunshine FL17 99/2/18 14:03:00 folder: 90218E p=996.39, Ta=35.5, RH=32, V=0.12, WD=80.4 No clouds, hazy sky with strong sunshine. up to 29 km (13hPa) FL18 99/2/18 15:45:30 folder: 90218F p=994.32, Ta=37.5, RH=24, V=0.04, WD=71.9 Strong sunshine, hazy sky, Ac 0.2 to S FL19 99/2/19 10:38:00 folder:90219A p=1002.02, Ta=27.1, RH=73, V=2.56, WD=221 Sc (?) 1.0 (range of 100% RH=1600-2500 m), Strong wind, No sunshine 10:40-10:50 a few drops of rain FL20 99/2/19 12:23:45 folder:90219C p=1001.01, Ta=30.5, RH=56, V=2.58, WD=223 Sc (?) 1.0, Sun coming through. Wind speed data are probably wrong: ~45 m/s <--- too large FL21 99/2/19 14:25:30 folder:90219D p=998.4, Ta=32.6, RH=49 (vs 39% of sonde), V=2.57, WD=226.6 Cu 0.5 here&there + As 0.5, Sun coming through. FL22 99/2/19 16:15:45 folder:90219E p=996.70 (vs 991.04 of sonde, input:p=996.0), ta=32.5, RH=37.5, V=1.87, WD=152 Cu 0.3+As 0.7, Sun coming through Gill sonic raw data: g90219e1.dat (16:00-16:30)+g90219e2.dat (16:30-17:00) clinometer:(x,y)=(0.76,0.69) @16:02 FL23 99/2/20 12:26:35 folder:90220b p=N/A (1005.54 of sonde), 1000.59 at 13:20, ta=31.5, RH=38, V=3.0(guess), Wd=200 (guess) Sc 1.0 w/small holes of blue sky, strong wind, sun coming through Gill sonic raw data: g90220b1.dat (12:00-12:30)+g90220b2.dat (12:30-13:00) up to 23 km (33.6 hPa) FL24 99/2/20 14:22:00 folder:90220c p=999.20 (input:p=999.8), ta=31.6, RH=40 (34.5 of sonde), V=1.87 (guess), WD=200 (gess) hazy sky, strong sunshine. Gill sonic raw data: g90220c1.dat (14:00-14:30)+g90220c2.dat (14:30-15:00) clinometer:(x,y)=(0.76,0.75) @14:00,(x,y)=(0.95,0.69) @14:30 FL25 99/2/20 16:12:00 folder:90220E p=998.04, ta=31.5, RH=40 (vs 34% of sonde), V=1.39, WD=160 hazy sky, Sun shining Gill sonic raw data: g90220d1.dat (15:30-16:00)+g90220d2.dat (16:00-16:30) clinometer:(x,y)=(0.98,0.69)@15:30,(x,y)=(0.95,0.69)@16:00,(x,y)=(0.95,0.64)@16:30 up to 30 km (11.6 hPa) FL26 99/2/21 9:16:15 folder:90221a p=1003.0 (vs 1008.32 of sonde, input:p=1003.32), ta=25, RH=63, V=1.39, WD=0 As 0.9, Sun coming through, low wind speed. Gill sonic raw data: g90221a1.dat (9:00-9:30)+g90221a2.dat (9:30-10:00) clinometer:(x,y)=(0.92,0.75)@9:00,(x,y)=(0.95,0.75)@9:30,(x,y)=(0.84,0.81)@10:00 up to 29 km (13hPa) FL27 99/2/21 10:57:30 folder:90221b p=1003.24, ta=30.3, RH=43.5, V=0.41, WD=170 As 0.2, hazy sky. Sun shining. Low wind speed. Gill sonic raw data: g90221b1.dat (10:30-11:00)+g90221b2.dat (11:00-11:30) clinometer:(x,y)=(1.00,0.64)@10:30,(x,y)=(1.00,0.67)@11:00 FAILED. NO DATA ARE AVAILABLE FOR THIS FLIGHT. FL28 99/2/21 11:20:10 folder:90221c p=1002.87 (vs 1003 of sonde), ta=29.5, RH=20.5, V=0.91, WD=200 As 0.2+hazy sky, Sun shining, low wind speed Gill sonic raw data: g90221c1.dat (11:00-11:30)+g90221c2.dat (11:30-12:00) clinometer:(x,y)=(1.00,0.67)@11:00,(x,y)=(0.95,0.70)@11:30,(x,y)=(0.78,0.77)@12:00 stopped at 25 km (25 hPa) FL29 99/2/21 12:51:00 folder:90221d p=1001.06, ta=32.2, RH=37, V=0.68, WD=100 Cu 0.3+hazy sky, Sun shining, low wind speed. Gill sonic raw data: g90221d1.dat (12:30-13:00)+g90221d2.dat (13:00-13:30) clinometer:(x,y)=(0.76,0.77)@12:30,(x,y)=(0.80,0.73)@13:00,(x,y)=(0.78,0.77)@13:30 stopped at 23 km (36 hPa) FL30 99/2/21 14:16:45 folder:90221E p=9996.26, ta=32.5, RH=36, V=0.38, WD=180 Cu 0.7+hazy sky, sun shining, moderate wind. Gill sonic raw data: g90221e1.dat (13:30-14:00)+g90221e2.dat (14:00-14:35)+g90221e3.dat (14:35-15:00) clinometer:(x,y)=(0.78,0.77)@13:30,(x,y)=(0.72,0.73)@14:00,(x,y)=(0.97,0.73)@14:30 stopped at 20 km (58 hPa) FL31 99/2/21 15:39:30 folder:90221g NOAA 15:31 p=998.30, ta=31.7, RH=37, V=0.012, WD=120 Cu 0.2 (E), Cu 0.1 (W), Sun shining, moderate wind Gill sonic raw data: g90221g1.dat (15:00-15:30)+g90221g2.dat (15:30-16:00) clinometer:(x,y)=(0.92,0.75)@15:00,(x,y)=(0.86,0.78)@16:00 up to 29.6 km (12 hPa) FL32 99/2/22 9:15:15 folder:90222a NOAA 9:13 p=1003.30, ta=26.3, RH59, V=0.54, WD=0? Clear w/a littel haze, Sun strong Gill sonic raw data: g90222a1.dat (9:00-9:30)+g90222a2.dat (9:30-10:00) clinometer:(x,y)=(0.92,0.77)@9:00,(x,y)=(0.86,0.77)@9:30,(x,y)=(0.78,0.77)@10:00. up tp 28 km (14.9 hPa) FL33 99/2/22 10:58:00 folder:90222b p=1002.70 (input:1003.2), ta=30.8, RH=38, V=2.21, WD=180 Clear w/a littel haze, Sun strong Gill sonic raw data: g90222b1.dat (10:30-11:00)+g90222a2.dat (11:00-11:30) clinometer:(x,y)=(0.70,0.64)@10:30,(x,y)=(0.70,0.61)@11:00. Stopped at 21 km (47 hPa) FL34 99/2/22 12:15:30 folder:90222c p=1001.60, ta=33.3, RH=32, V=1.80, WD=180 Clear w/a littel haze, Sun strong, moderate wind. Gill sonic raw data: g90222c1.dat (11:30-12:00)+g90222c2.dat (12:00-12:30) clinometer:(x,y)=(0.70,0.75)@11:30,(x,y)=(0.73,0.69)@12:00. Stopped at 20 km (54.6 hPa) FL35 99/2/22 13:45:15 folder:90222d p=999.73, ta=34.0, RH=31, V=0.7, WD=180 Clear, Sun strong, strong wind. Gill sonic raw data: g90222d1.dat (13:30-14:00)+g90222c2.dat (14:00-14:30) clinometer:(x,y)=(0.72,0.73)@13:30,(x,y)=(0.78,0.67)@14:00,(x,y)=(0.78,0.69)@14:30. Stopped at 26 km (21.0 hPa) FL36 99/2/22 15:20:10 folder:90222e NOAA 15:20 p=998.03, ta=34.5, RH=29, V=1.23, WD=180 Clear, Sun strong, moderate wind. Gill sonic raw data: g90222e1.dat (15:00-15:30)+g90222e2.dat (15:30-16:00) clinometer:(x,y)=(0.84,0.69)@15:00,(x,y)=(0.78,0.75)@15:30,(x,y)=(1.00,0.69)@16:00. up to 28 km ( 14.38hPa) FL37 99/2/23 9:00:00 folder:90223a NOAA 9:00 p=1002.0, ta=23.4, RH=76, WD=70, V=0.62 Ci<0.1, hazy sky, weak wind, sun shining Gill sonic raw data: g90223a1.dat (8:30-9:00)+g90223a2.dat (9:00-9:30) clinometer:(x,y)=(0.96,0.71)@8:30,(x,y)=(0.86,0.77)@9:00,(x,y)=(0.84,0.77)@9:30. up to 22km ( 38 hPa) FL38 99/2/23 10:27:00 folder:90223b p=1002.1, ta=31.5, RH=41, WD=180, V=0.96 Clear sky, moderate wind, sun shining strongly Gill sonic raw data: g90223b1.dat (10:17-10:30)+g90223b2.dat (10:30-11:00) clinometer:(x,y)=(0.80,0.75)@10:17,(x,y)=(0.76,0.75)@10:30,(x,y)=(0.72,0.73)@11:00. stopped at 26km (19.7 hPa) FL39 99/2/23 12:08:45 folder:90223c p=1000.5, Ta=33.5, RH=38, WD=150, V=0.63 Gill sonic raw data: g90223c1.dat (11:30-12:00)+g90223c2.dat (12:00-12:30) clinometer:(x,y)=(0.84,0.73)@11:30,(x,y)=(0.78,0.73)@12:00,(x,y)=(0.95,0.73)@12:30. clear sky, moderate wind, strong sunshine stopped at 24 km (28.5 hPa) FL40 99/2/23 13:37:30 folder:90223d p=998.3, Ta=34.2, RH=33, WD=200, V=0.53 Gill sonic raw data: g90223d1.dat (13:00-13:30)+g90223d2.dat (13:30-14:00) clinometer:(x,y)=(0.92,0.73)@13:00,(x,y)=(0.74,0.77)@13:30,(x,y)=(0.72,0.75)@14:00. Cu 0.1 in SE sky,moderate wind, strong sunshine stopped at 23 km ( 34 hPa) FL41 99/2/23 15:08:15 folder:90223e NOAA 15:08 p= 996.5, Ta=36.0, RH=27, WD=170, V=0.75 Gill sonic raw data: g90223e1.dat (14:30-15:00)+g90223e2.dat (15:00-15:30) clinometer:(x,y)=(0.99,0.77)@14:30,(x,y)=(1.05,0.58)@15:00,(x,y)=(1.00,0.67)@15:30. Cu 0.3 in NW sky mainly & here&there, weak wind, sun shining stopped at 30 km ( 11 hPa) FL42 99/2/24 8:47:00 folder:90224a NOAA 8:47 p= 999.9, Ta=25.3, RH=65, WD=80, V=1.17 Gill sonic raw data: g90224a1.dat (8:30-9:00)+g90224a2.dat (9:00-9:30) clinometer:(x,y)=(0.92,0.71)@8:30,(x,y)=(0.92,0.77)@9:00,(x,y)=(0.89,0.77)@9:30. Clear w/haze near horizen, moderate wind, sun shining Shallow ABL ~200 m (?) up to 28 km ( 15 hPa) FL43 99/2/24 10:32:00 folder:90224b p=1000.63, Ta=30.0, RH=52, WD=130-160, V=0.28 Gill sonic raw data: g90224b1.dat (10:00-10:30)+g90224b2.dat (10:30-11:00) clinometer:(x,y)=(0.89,0.77)@10:00,(x,y)=(0.76,0.64)@10:30,(x,y)=(0.84,0.67)@11:00. Clear, weak wind, strong sunshine up to 28 km ( 16 hPa) FL44 99/2/24 12:15:00 folder:90224c p= 999.2, Ta=33.5, RH=39, WD=80, V=0.78 Gill sonic raw data: g90224c1.dat (11:30-12:00)+g90224c2.dat (12:00-12:30) clinometer:(x,y)=(0.89,0.69)@11:30,(x,y)=(0.95,0.75)@12:00,(x,y)=(0.99,0.77)@12:30. Clear, weak wind, strong sunshine up to 28km ( 15 hPa) FL45 99/2/24 14:28:15 folder:90224e TRMM (14:28) p= 996.2, Ta=37.0, RH=27, WD=170, V=0.54 Gill sonic raw data: g90224e1.dat (14:00-14:30)+g90224e2.dat (14:30-15:00) clinometer:(x,y)=(1.11,0.58)@14:00,(x,y)=(1.00,0.56)@14:30,(x,y)=(1.00,0.64)@15:00. Cu 0.3 in E-S-W horizen, weak wind, strong sunshine up to 30 km ( 12 hPa) FL46 99/2/24 16:35:30 folder:90224g p= 994.2, Ta=37.3, RH=27.5, WD=100, V=1.97 Gill sonic raw data: g90224g1.dat (16:00-16:30)+g90224g2.dat (16:30-17:00) clinometer:(x,y)=(1.00,0.73)@16:00,(x,y)=(1.00,0.77)@16:30,(x,y)=(0.95,0.67)@17:00. Cu 0.7 here&there, moderate wind, weak sunshine stopped at 16 km ( 110 hPa) FL47 99/2/25 8:34:30 folder:9022a NOAA 8:34 p= 999.3, Ta=25.0, RH=73.0, WD= 80, V=1.14 Gill sonic raw data: g90225a1.dat ( 8:00- 8:30)+g90225a2.dat ( 8:30- 9:00) clinometer:(x,y)=(0.92,0.67)@ 8:00,(x,y)=(0.92,0.69)@ 8:30,(x,y)=(0.92,0.73)@ 9:00. Clear, moderate wind, sun shining stopped at 30 km ( 11.5 hPa) FL48 99/2/25 10:22:00 folder:90225b p=1000.16, Ta=30.6, RH=53.0, WD= 80, V=0.26 Gill sonic raw data: g90225b1.dat (10:00-10:30)+g90225b2.dat (10:30-11:00) clinometer:(x,y)=(0.84,0.69)@10:00,(x,y)=(0.78,0.64)@10:30,(x,y)=(0.72,0.75)@11:00. Clear, weak wind, sun shining stopped at 29 km ( 13.0 hPa) FL49 99/2/25 12:16:00 folder:90225c p=998.406, Ta=34.9, RH=42, WD= 80, V=0.44 Gill sonic raw data: g90225c1.dat (12:00-12:30)+g90225c2.dat (12:30-13:00) clinometer:(x,y)=(0.89,0.75)@12:00,(x,y)=(0.86,0.69)@12:30,(x,y)=(0.86,0.70)@13:00. Clear, moderate wind, sun shining stopped at 29 km ( 13.0 hPa) FL50 99/2/25 14:15:45 folder:90225d p=995.65, Ta=36.4, RH=35, WD= 80, V=0.98 Gill sonic raw data: g90225d1.dat (14:00-14:30)+g90225d2.dat (14:30-15:00) clinometer:(x,y)=(0.91,0.75)@14:00,(x,y)=(0.99,0.75)@14:30,(x,y)=(0.99,0.67)@15:00. Cu 0.2(SE sky), moderate wind, sun shining stopped at 29 km ( 13.8 hPa) FL51 99/2/26 9:08:00 folder:90226a p=998.95, Ta=27.0, RH=73, WD= 50, V=0.57 Clear, weak wind, sun shining stopped at 28.3 km ( 14.8 hPa) FL52 99/2/26 10:51:10 folder:90226b p=998.81, Ta=32.0, RH=54.5, WD=180, V=0.18 Clear, weak wind, sun shining stopped at 25.6 km ( 22.5 hPa) FL53 99/2/26 12:25:00 folder:90226c p=997.18, Ta=36.2, RH=38, WD=100, V=0.22 Clear, weak wind, sun shining stopped at 20 km ( 55.3 hPa) FL54 99/2/26 13:47:00 folder:90226e TRMM 13:40 p=995.39, Ta=36.7, RH=33, WD=60, V=2.02 Clear, moderate wind, sun shining stopped at 27.1 km ( 17.8 hPa) FL55 99/2/26 15:30:30 folder:90226f p=993.23, Ta=38.6, RH=28, WD=90, V=1.19 Clear, moderate wind, sun shining stopped at 29.6 km ( 12.2 hPa) FL56 99/2/27 8:47:40 folder:90227a p=998.41, Ta=26.5, RH=73, WD= 0, V=0.22 Clear (but hazy sky), weak wind, sun shining (but not so strong) stopped at 30 km ( 11.4 hPa) FL57 99/2/27 10:35:30 folder:90227b p=998.45, Ta=31.0, RH=57, WD=60, V=0.13 Clear, weak wind, sun shining stopped at 29.6 km ( 12.2 hPa) FL58 99/2/27 12:28:00 folder:90227c TRMM 12:28 p=996.94, Ta=34.0, RH=46, WD=70, V=0.62 Clear, moderate wind, sun shining stopped at 27 km ( 18.2 hPa) FL59 99/2/27 14:04:00 folder:90227d p=994.90, Ta=37.5, RH=35.5, WD=60, V=1.01 Clear, moderate wind, sun shining stopped at 25 km ( 24.5 hPa) FL60 99/2/27 15:34:45 folder:90227f p=993.27, Ta=37.2, RH=34.5, WD=70, V=0.62 Clear (but haze around horizon), moderate wind, sun shining stopped at 25.5 km ( 22.5 hPa) FL61 99/2/28 8:42:45 folder:90228a p=1000.75, Ta=25.5, RH=83, WD=270, V=0.48 St 1.0, weak wind, no sunshine stopped at 24.5 km ( 26.5 hPa) FL62 99/2/28 10:32:15 folder:90228b p=1001.80, Ta=29.0, RH=62, WD=180, V=2.38 St 1.0, strong wind, no sunshine stopped at 25.4 km ( 23.2 hPa) FL63 99/2/28 12:40:15 folder:90228c p=999.92, Ta=28.5, RH=65.5, WD=180, V=1.67 Cu 0.7 (here and there), moderate wind, sun coming through the clouds stopped at 28.5 km ( 14.4 hPa) FL64 99/2/28 14:29:00 folder:90228d p=997.82, Ta=32.5, RH=68.5, WD=170, V=1.06 Cu 0.8 (here and there) + haze, moderate wind, sun coming through the clouds stopped at 22.0 km ( 39.7 hPa) FL65 99/2/28 15:45:30 folder:90228e p=996.26, Ta=32.9, RH=45.5, WD=180, V=1.19 Cu 0.2 (S and N) + haze, moderate wind, sun shining stopped at 29.3 km ( 12.5 hPa) FL66 99/3/01 8:26:15 folder:90301a p=1000.67, Ta=26.0, RH=70, WD=320, V=0.92 Cs 0.1 (SE) + haze, weak wind, sun shining stopped at 20.4 km ( 51.9 hPa) FL67 99/3/01 9:50:30 folder:90301b p=1001.72, Ta=29.6, RH=54, WD=0, V=0.97 Clear, weak wind, sun shining stopped at 29.2 km ( 13.2 hPa) FL68 99/3/01 11:40:00 folder:90301c TRMM 11:40 p=1000.70, Ta=33.0, RH=43, WD=90, V=0.57 Cu 0.3 (SW and top), weak wind, sun coming through the clouds stopped at 28 km ( 15.6 hPa) FL69 99/3/01 13:36:10 folder:90301d p=997.82, Ta=34.9, RH=38, WD=80, V=0.92 Cu 0.3 (here and there), moderate wind, sun coming through the clouds stopped at 29.3 km ( 12.9 hPa) FL70 99/3/01 15:32:10 folder:90301f p=994.96, Ta=35.2, RH=36.5, WD=90, V=0.13 Cu 0.2 (E and top), moderate wind, sun shining stopped at 29.7 km ( 12.0 hPa) FL71 99/3/02 9:10:00 folder:90302a NOAA 9:10 p=997.61, Ta=27.5, RH=64.5, WD=0 ( to 60), V=0.97 Cu 0.1 (NW) + haze, weak wind, sun shining stopped at 27.9 km ( 15.7 hPa) FL72 99/3/02 10:46:00 folder:90302b p=997.91, Ta=31.0, RH=50, WD=90, V=0.92 Clear, moderate wind, sun shining stopped at 26.8 km ( 18.8 hPa) FL73 99/3/02 12:16:00 folder:90302c p=996.42, Ta=35.0, RH=38.5, WD=100, V=0.22 Cu 0.2 (S and W), weak wind, sun shining stopped at 26.1 km ( 20.9 hPa) FL74 99/3/02 13:54:00 folder:90302d p=993.80, Ta=34.8, RH=37.5, WD=300, V=0.44 Cu 0.6 (here and there), moderate wind, sun coming through the clouds stopped at 27.5 km ( 16.8 hPa) FL75 99/3/02 15:31:00 folder:90302e NOAA 15:31 p=991.43, Ta=38.4, RH=28, WD=60, V=0.40 Cu 0.7, moderate wind, sun shining (coming through the clouds) stopped at 29.5 km ( 12.4 hPa) FL76 99/3/03 8:57:00 folder:90303a1 NOAA 8:57 p=995.70, Ta=28.3, RH=61.5, WD=0, V=0.35 Gill sonic raw data: 90303a1.dat ( 8:35- 9:00) + 90303a2.dat ( 9:00- 9:30) clinometer:(x,y)=(0.86,0.75)@ 8:35,(x,y)=(0.86,0.75)@ 9:00,(x,y)=(0.86,0.75)@ 9:30. Clear, weak wind, sun shining stopped at 29.2 km ( 13.2 hPa) FL77 99/3/03 10:34:00 folder:90303b p=995.96, Ta=33.3, RH=40, WD=0, V=0.62 Gill sonic raw data: 90303b1.dat (10:12-10:30) + 90303b2.dat (10:30-11:00) clinometer:(x,y)=(0.95,0.75)@10:12,(x,y)=(0.89,0.77)@10:30,(x,y)=(0.89,0.73)@11:00. Clear, moderate wind, sun shining stopped at 24.1 km ( 28.7 hPa) FL78 99/3/03 12:02:40 folder:90303c p=994.65, Ta=35.1, RH=33.5, WD=90, V=0.04 Gill sonic raw data: 90303c1.dat (11:30-12:00) + 90303c2.dat (12:00-12:30) clinometer:(x,y)=(0.91,0.77)@11:30,(x,y)=(0.89,0.75)@12:00,(x,y)=(0.97,0.73)@12:30. Clear, moderate wind, sun shining stopped at 26.6 km ( 19.5 hPa) FL79 99/3/03 13::00 folder:90303e p=992.87, Ta=37.0, RH=27, WD=60, V=0.66 sensor output of RH is very low (5%) Gill sonic raw data: 90303e1.dat (13:30-14:00) + 90303e2.dat (14:00-14:30) clinometer:(x,y)=(1.03,0.75)@13:30,(x,y)=(0.97,0.62)@14:00,(x,y)=(0.91,0.75)@14:30. Cu 0.3 (S and W), moderate wind, sun shining stopped at 21.7 km ( 41.8 hPa) FL80 99/3/03 15:22:00 folder:90303f NOAA 13:20 p=989.97, Ta=37.6, RH=22.5, WD=90, V=0.48 Gill sonic raw data: 90303f1.dat (15:00-15:30) + 90303f2.dat (15:30-16:00) clinometer:(x,y)=(0.84,0.77)@15:00,(x,y)=(1.05,0.75)@15:30,(x,y)=(N/A,N/A)@16:00. Cu 0.4 (except N and E), moderate wind, sun shining stopped at 21.0 km ( 47.1 hPa)