41 1001 Wennberg, Paul California Institute of Technology Gas Phase Nitric Acid from DC-8 TC4 1 1 2007 07 28 2007 08 02 0 start_UTC, s 3 1 1 1 999999 999999 999999 stop_UTC, s mid_UTC, s HNO3, pptv 0 24 PI_CONTACT_INFO: Address: California Institute of Technology. MC 150-21. 1200 E. California Blvd, Pasadena, CA, 91125. Phone: (626) 395-2447. Fax: (626) 585-1917. email: wennberg@gps.caltech.edu PLATFORM: NASA DC-8 airborne laboratory. LOCATION: Aircraft location data in file TN_20070728.DC8. ASSOCIATED_DATA: N/A INSTRUMENT_INFO: Chemical Ionization Mass Spectrometer. Direct measurements in ambient air. DATA_INFO: Measurements are reported as 0.5 sec averages and in units of pptv. CAUTION: Do not extrapolate data outside of given time interval as these are discrete measurements. Calibration was conducted ~once per hour during the flight using isotopically labeled nitric acid evolved from a perm tube held at constant temperature. Absolute calibration was obtained by collection in water and subsequent ion chromatography. Zeros were conducted ~3 times per hour by passing ambient air through a filter containing nylon wool coated with NaHCO3. UNCERTAINTY: +-(50% of measuremlent value + 50 pptv) ULOD_FLAG: -7777 ULOD_VALUE: N/A LLOD_FLAG: -8888 LLOD_VALUE: N/A; N/A; N/A; DM_CONTACT_INFO: John Crounse. California Institute of Technology. Department of Chemistry and Chemical Engineering. MC 150-21. 1200 E. California Blvd. Pasadena, CA 91125. Phone: (626) 395-6868. Fax: (626) 585-1917. email: crounjd@caltech.edu. PROJECT_INFO: TC4 study; 13 July-13 August 2007; Study of cloud processing and tropical convection processes STIPULATIONS_ON_USE: Use of these data requires PI notification and adherence to the TC4 data protocol. OTHER_COMMENTS: N/A REVISION: R0 R0: Preliminary Data Revision 0. Water correction has been applied using CIT-CIMS water. Reduction code 1.5 start_UTC(s) stop_UTC(s) mid_UTC(s) HNO3(pptv) 60099.41 60099.91 60099.66 116.7 60111.91 60112.41 60112.16 121.6 60135.41 60135.91 60135.66 98.5 60147.91 60148.41 60148.16 121.1 60171.41 60171.91 60171.66 113.0 60183.91 60184.41 60184.16 93.6 60207.41 60207.91 60207.66 101.2 60219.91 60220.41 60220.16 60.1 60243.41 60243.91 60243.66 81.9 60255.91 60256.41 60256.16 65.3 60279.41 60279.91 60279.66 97.8 60291.91 60292.41 60292.16 91.8 60315.41 60315.91 60315.66 84.4 60327.91 60328.41 60328.16 46.4 60351.41 60351.91 60351.66 87.0 60363.91 60364.41 60364.16 90.7 60387.41 60387.91 60387.66 123.8 60399.91 60400.41 60400.16 48.8 60423.41 60423.91 60423.66 48.7 60435.91 60436.41 60436.16 66.3 60459.41 60459.91 60459.66 39.2 60471.91 60472.41 60472.16 5.4 60495.41 60495.91 60495.66 26.2 60507.91 60508.41 60508.16 37.6 60611.53 60612.03 60611.78 141.7 60624.03 60624.53 60624.28 88.7 60647.53 60648.03 60647.78 68.9 60660.03 60660.53 60660.28 81.3 60683.53 60684.03 60683.78 76.9 60696.03 60696.53 60696.28 60.3 60820.41 60820.91 60820.66 30.8 60832.91 60833.41 60833.16 38.2 60856.41 60856.91 60856.66 50.2 60868.91 60869.41 60869.16 70.4 60892.28 60892.78 60892.53 58.5 60904.78 60905.28 60905.03 75.0 60928.28 60928.78 60928.53 44.8 60940.78 60941.28 60941.03 59.0 60964.41 60964.91 60964.66 47.4 60976.91 60977.41 60977.16 12.5 61000.28 61000.78 61000.53 22.6 61012.78 61013.28 61013.03 26.6 61036.28 61036.78 61036.53 36.9 61048.78 61049.28 61049.03 22.3 61072.28 61072.78 61072.53 58.7 61084.78 61085.28 61085.03 44.5 61108.28 61108.78 61108.53 49.2 61120.78 61121.28 61121.03 29.0 61144.28 61144.78 61144.53 41.5 61156.78 61157.28 61157.03 57.9 61180.28 61180.78 61180.53 29.5 61192.78 61193.28 61193.03 45.3 61216.28 61216.78 61216.53 61.6 61228.78 61229.28 61229.03 68.5 61252.28 61252.78 61252.53 73.3 61264.78 61265.28 61265.03 50.9 61288.28 61288.78 61288.53 54.9 61300.78 61301.28 61301.03 53.9 61324.28 61324.78 61324.53 35.9 61336.78 61337.28 61337.03 70.3 61360.28 61360.78 61360.53 43.6 61372.78 61373.28 61373.03 54.4 61396.28 61396.78 61396.53 86.4 61408.78 61409.28 61409.03 120.1 61432.28 61432.78 61432.53 85.1 61444.78 61445.28 61445.03 100.5 61468.28 61468.78 61468.53 116.3 61480.78 61481.28 61481.03 109.1 61504.28 61504.78 61504.53 161.8 61516.78 61517.28 61517.03 205.9 61540.28 61540.78 61540.53 127.3 61552.78 61553.28 61553.03 89.5 61576.28 61576.78 61576.53 116.0 61588.78 61589.28 61589.03 99.2 61612.28 61612.78 61612.53 76.8 61624.78 61625.28 61625.03 79.3 61648.28 61648.78 61648.53 80.2 61660.78 61661.28 61661.03 107.2 61684.28 61684.78 61684.53 112.3 61696.78 61697.28 61697.03 103.7 61720.28 61720.78 61720.53 82.1 61732.78 61733.28 61733.03 94.9 62279.41 62279.91 62279.66 135.3 62291.91 62292.41 62292.16 158.6 62315.41 62315.91 62315.66 143.5 62327.91 62328.41 62328.16 132.3 62351.41 62351.91 62351.66 109.9 62363.91 62364.41 62364.16 71.7 62387.41 62387.91 62387.66 100.7 62399.91 62400.41 62400.16 132.4 62423.41 62423.91 62423.66 110.9 62435.91 62436.41 62436.16 88.1 62459.41 62459.91 62459.66 117.6 62471.91 62472.41 62472.16 98.7 62495.41 62495.91 62495.66 128.3 62507.91 62508.41 62508.16 96.5 62531.28 62531.78 62531.53 142.7 62543.78 62544.28 62544.03 116.3 62567.28 62567.78 62567.53 109.2 62579.91 62580.41 62580.16 119.5 62603.41 62603.91 62603.66 119.7 62615.91 62616.41 62616.16 131.9 62639.41 62639.91 62639.66 145.0 62651.78 62652.28 62652.03 103.7 62675.28 62675.78 62675.53 129.1 62687.78 62688.28 62688.03 164.7 62711.28 62711.78 62711.53 103.8 62723.91 62724.41 62724.16 88.7 62747.41 62747.91 62747.66 104.7 62759.78 62760.28 62760.03 82.1 62783.28 62783.78 62783.53 48.0 62795.78 62796.28 62796.03 62.2 62819.28 62819.78 62819.53 69.7 62831.78 62832.28 62832.03 80.2 62855.28 62855.78 62855.53 124.8 62867.78 62868.28 62868.03 109.5 62891.28 62891.78 62891.53 110.8 62903.78 62904.28 62904.03 139.0 62927.28 62927.78 62927.53 122.4 62939.78 62940.28 62940.03 100.3 62963.28 62963.78 62963.53 102.0 62975.78 62976.28 62976.03 115.4 62999.28 62999.78 62999.53 101.3 63011.78 63012.28 63012.03 122.5 63035.28 63035.78 63035.53 169.0 63047.78 63048.28 63048.03 66.6 63071.28 63071.78 63071.53 100.6 63083.78 63084.28 63084.03 100.9 63107.41 63107.91 63107.66 124.7 63119.91 63120.41 63120.16 193.6 63143.41 63143.91 63143.66 147.9 63155.91 63156.41 63156.16 68.7 63277.41 63277.91 63277.66 64.0 63289.91 63290.41 63290.16 91.7 63313.41 63313.91 63313.66 142.2 63325.91 63326.41 63326.16 252.6 63349.41 63349.91 63349.66 186.5 63361.91 63362.41 63362.16 265.9 63385.41 63385.91 63385.66 68.5 63397.91 63398.41 63398.16 86.5 63421.41 63421.91 63421.66 123.3 63433.91 63434.41 63434.16 77.6 63457.41 63457.91 63457.66 90.1 63469.91 63470.41 63470.16 147.1 63493.41 63493.91 63493.66 162.2 63505.91 63506.41 63506.16 136.5 63529.34 63529.84 63529.59 201.1 63541.78 63542.28 63542.03 113.9 63565.28 63565.78 63565.53 160.8 63577.91 63578.41 63578.16 95.7 63601.41 63601.91 63601.66 151.5 63613.91 63614.41 63614.16 122.1 63637.41 63637.91 63637.66 137.4 63649.78 63650.28 63650.03 73.3 63673.28 63673.78 63673.53 160.2 63685.78 63686.28 63686.03 142.5 63709.28 63709.78 63709.53 166.0 63721.91 63722.41 63722.16 153.3 63745.41 63745.91 63745.66 187.4 63757.78 63758.28 63758.03 168.4 63781.28 63781.78 63781.53 110.1 63793.78 63794.28 63794.03 139.9 63817.28 63817.78 63817.53 92.9 63829.78 63830.28 63830.03 107.1 63853.22 63853.72 63853.47 192.4 63865.91 63866.41 63866.16 164.0 63889.22 63889.72 63889.47 197.9 63901.78 63902.28 63902.03 156.5 63925.22 63925.72 63925.47 223.9 63937.78 63938.28 63938.03 162.3 63961.28 63961.78 63961.53 218.3 63973.78 63974.28 63974.03 157.9 63997.22 63997.72 63997.47 220.7 64009.78 64010.28 64010.03 174.1 64033.22 64033.72 64033.47 210.1 64045.78 64046.28 64046.03 142.8 64069.22 64069.72 64069.47 182.4 64081.78 64082.28 64082.03 75.0 64105.28 64105.78 64105.53 69.7 64117.78 64118.28 64118.03 51.7 64141.28 64141.78 64141.53 80.3 64153.78 64154.28 64154.03 47.8 64177.22 64177.72 64177.47 85.1 64189.78 64190.28 64190.03 -4.2 64311.41 64311.91 64311.66 114.4 64323.91 64324.41 64324.16 67.0 64347.34 64347.84 64347.59 82.8 64359.91 64360.41 64360.16 40.5 64383.34 64383.84 64383.59 77.0 64395.91 64396.41 64396.16 81.8 64419.28 64419.78 64419.53 86.2 64431.78 64432.28 64432.03 48.8 64455.41 64455.91 64455.66 44.6 64467.91 64468.41 64468.16 29.0 64491.41 64491.91 64491.66 82.0 64503.91 64504.41 64504.16 72.7 64527.22 64527.72 64527.47 96.9 64539.78 64540.28 64540.03 76.6 64563.28 64563.78 64563.53 94.9 64575.78 64576.28 64576.03 103.8 64599.28 64599.78 64599.53 101.5 64611.91 64612.41 64612.16 140.5 64635.34 64635.84 64635.59 115.8 64647.78 64648.28 64648.03 65.5 64671.28 64671.78 64671.53 82.9 64683.78 64684.28 64684.03 73.3 64707.28 64707.78 64707.53 55.3 64719.78 64720.28 64720.03 62.6 64743.28 64743.78 64743.53 56.9 64755.78 64756.28 64756.03 35.5 64779.22 64779.72 64779.47 63.3 64791.78 64792.28 64792.03 65.8 64815.22 64815.72 64815.47 66.3 64827.78 64828.28 64828.03 41.3 64851.28 64851.78 64851.53 95.0 64863.78 64864.28 64864.03 100.4 64887.22 64887.72 64887.47 117.5 64899.78 64900.28 64900.03 77.8 64923.22 64923.72 64923.47 127.0 64935.78 64936.28 64936.03 99.0 64959.28 64959.78 64959.53 99.6 64971.78 64972.28 64972.03 111.1 64995.22 64995.72 64995.47 101.9 65007.78 65008.28 65008.03 125.3 65031.22 65031.72 65031.47 136.4 65043.78 65044.28 65044.03 70.6 65067.28 65067.78 65067.53 81.2 65079.78 65080.28 65080.03 85.9 65103.22 65103.72 65103.47 86.6 65115.78 65116.28 65116.03 83.3 65139.22 65139.72 65139.47 116.0 65151.78 65152.28 65152.03 108.7 65175.22 65175.72 65175.47 75.9 65187.78 65188.28 65188.03 59.9 65211.28 65211.78 65211.53 40.6 65223.78 65224.28 65224.03 38.2 65468.34 65468.84 65468.59 103.1 65480.91 65481.41 65481.16 21.5 65504.34 65504.84 65504.59 29.7 65516.78 65517.28 65517.03 -12.7 65540.28 65540.78 65540.53 -13.4 65552.78 65553.28 65553.03 5.7 65576.22 65576.72 65576.47 5.8 65588.78 65589.28 65589.03 -11.8 65612.34 65612.84 65612.59 0.7 65624.78 65625.28 65625.03 -16.6 65648.22 65648.72 65648.47 -7.7 65660.78 65661.28 65661.03 -21.4 65684.22 65684.72 65684.47 14.7 65696.78 65697.28 65697.03 -6.8 65720.22 65720.72 65720.47 2.8 65732.78 65733.28 65733.03 -11.8 65756.22 65756.72 65756.47 -1.2 65768.78 65769.28 65769.03 5.6 65792.22 65792.72 65792.47 -7.6 65804.78 65805.28 65805.03 -12.1 65828.28 65828.78 65828.53 -18.5 65840.78 65841.28 65841.03 -7.4 65864.22 65864.72 65864.47 -3.6 65876.78 65877.28 65877.03 -6.5 65900.28 65900.78 65900.53 -9.0 65912.78 65913.28 65913.03 -17.3 65936.28 65936.78 65936.53 -6.0 65948.78 65949.28 65949.03 -8.0 65972.22 65972.72 65972.47 5.5 65984.78 65985.28 65985.03 -15.5 66008.28 66008.78 66008.53 -4.1 66020.78 66021.28 66021.03 -31.1 66044.22 66044.72 66044.47 -8.6 66056.78 66057.28 66057.03 -30.2 66080.28 66080.78 66080.53 -30.7 66092.78 66093.28 66093.03 -50.6 66116.22 66116.72 66116.47 5.1 66128.78 66129.28 66129.03 -12.2 66152.22 66152.72 66152.47 -8.0 66164.78 66165.28 66165.03 -14.8 66188.22 66188.72 66188.47 10.6 66200.78 66201.28 66201.03 -47.7 66224.22 66224.72 66224.47 -14.2 66236.78 66237.28 66237.03 -2.9 66260.22 66260.72 66260.47 -9.3 66272.78 66273.28 66273.03 -11.9 66296.22 66296.72 66296.47 2.2 66308.78 66309.28 66309.03 1.7 66332.22 66332.72 66332.47 7.8 66344.78 66345.28 66345.03 -16.8 66368.28 66368.78 66368.53 -16.0 66380.78 66381.28 66381.03 -13.8 66502.34 66502.84 66502.59 47.0 66514.91 66515.41 66515.16 27.6 66538.34 66538.84 66538.59 21.7 66550.91 66551.41 66551.16 -3.3 66574.41 66574.91 66574.66 -8.1 66586.91 66587.41 66587.16 8.6 66610.41 66610.91 66610.66 0.4 66622.91 66623.41 66623.16 -13.5 66646.34 66646.84 66646.59 -9.6 66658.91 66659.41 66659.16 17.8 66682.34 66682.84 66682.59 12.2 66694.91 66695.41 66695.16 -17.1 66718.34 66718.84 66718.59 33.3 66730.91 66731.41 66731.16 0.6 66754.34 66754.84 66754.59 -4.0 66766.91 66767.41 66767.16 -17.9 66790.34 66790.84 66790.59 14.6 66802.91 66803.41 66803.16 -12.1 66826.41 66826.91 66826.66 -18.1 66838.91 66839.41 66839.16 -14.3 66862.34 66862.84 66862.59 0.6 66874.91 66875.41 66875.16 9.3 66898.34 66898.84 66898.59 -2.5 66910.91 66911.41 66911.16 -11.8 66934.34 66934.84 66934.59 4.5 66946.78 66947.28 66947.03 -25.7 66970.22 66970.72 66970.47 -21.0 66982.91 66983.41 66983.16 -4.4 67006.34 67006.84 67006.59 7.4 67018.91 67019.41 67019.16 -19.1 67042.34 67042.84 67042.59 -6.5 67054.78 67055.28 67055.03 -15.6 67078.22 67078.72 67078.47 17.7 67090.78 67091.28 67091.03 20.0 67114.22 67114.72 67114.47 27.3 67126.91 67127.41 67127.16 43.0 67150.34 67150.84 67150.59 93.5 67162.78 67163.28 67163.03 79.6 67186.22 67186.72 67186.47 89.7 67198.78 67199.28 67199.03 83.3 67222.28 67222.78 67222.53 99.1 67234.78 67235.28 67235.03 126.1 67258.22 67258.72 67258.47 124.8 67270.78 67271.28 67271.03 115.1 67294.28 67294.78 67294.53 100.6 67306.78 67307.28 67307.03 80.6 67330.22 67330.72 67330.47 138.7 67342.78 67343.28 67343.03 119.2 67366.22 67366.72 67366.47 111.2 67378.78 67379.28 67379.03 124.5 67402.28 67402.78 67402.53 170.7 67414.78 67415.28 67415.03 146.9 67536.34 67536.84 67536.59 180.6 67548.91 67549.41 67549.16 172.5 67572.34 67572.84 67572.59 195.9 67584.91 67585.41 67585.16 163.0 67608.22 67608.72 67608.47 191.9 67620.78 67621.28 67621.03 159.5 67644.28 67644.78 67644.53 201.0 67656.78 67657.28 67657.03 152.4 67680.34 67680.84 67680.59 184.8 67692.91 67693.41 67693.16 192.0 67716.22 67716.72 67716.47 163.8 67728.78 67729.28 67729.03 108.8 67752.22 67752.72 67752.47 177.5 67764.78 67765.28 67765.03 164.5 67788.22 67788.72 67788.47 172.6 67802.97 67803.47 67803.22 176.9 67824.22 67824.72 67824.47 188.2 67836.78 67837.28 67837.03 184.8 67860.22 67860.72 67860.47 202.1 67872.78 67873.28 67873.03 168.1 67896.22 67896.72 67896.47 186.0 67908.78 67909.28 67909.03 181.7 67932.22 67932.72 67932.47 174.3 67944.78 67945.28 67945.03 162.4 67968.22 67968.72 67968.47 187.9 67980.78 67981.28 67981.03 165.9 68004.22 68004.72 68004.47 156.1 68016.78 68017.28 68017.03 155.2 68040.28 68040.78 68040.53 206.7 68052.78 68053.28 68053.03 206.2 68076.28 68076.78 68076.53 182.8 68088.78 68089.28 68089.03 172.5 68112.22 68112.72 68112.47 179.8 68124.78 68125.28 68125.03 149.1 68148.22 68148.72 68148.47 171.7 68160.78 68161.28 68161.03 185.8 68184.22 68184.72 68184.47 207.6 68196.78 68197.28 68197.03 191.2 68220.22 68220.72 68220.47 190.4 68232.78 68233.28 68233.03 176.3 68256.22 68256.72 68256.47 131.8 68268.78 68269.28 68269.03 128.0 68292.28 68292.78 68292.53 132.8 68306.97 68307.47 68307.22 152.8 68328.22 68328.72 68328.47 186.8 68340.78 68341.28 68341.03 172.1 68364.22 68364.72 68364.47 145.7 68376.78 68377.28 68377.03 98.9 68400.22 68400.72 68400.47 148.5 68412.78 68413.28 68413.03 155.5 68436.22 68436.72 68436.47 229.9 68448.78 68449.28 68449.03 170.0 68994.34 68994.84 68994.59 220.7 69006.91 69007.41 69007.16 155.5 69030.41 69030.91 69030.66 142.0 69042.91 69043.41 69043.16 138.2 69066.34 69066.84 69066.59 146.8 69078.91 69079.41 69079.16 101.2 69102.41 69102.91 69102.66 119.6 69114.91 69115.41 69115.16 108.4 69138.34 69138.84 69138.59 100.9 69150.91 69151.41 69151.16 85.2 69174.34 69174.84 69174.59 82.5 69186.91 69187.41 69187.16 54.5 69210.34 69210.84 69210.59 69.7 69222.91 69223.41 69223.16 96.0 69246.22 69246.72 69246.47 118.8 69258.78 69259.28 69259.03 109.4 69282.22 69282.72 69282.47 90.1 69294.91 69295.41 69295.16 132.8 69318.34 69318.84 69318.59 140.5 69330.91 69331.41 69331.16 162.3 69354.22 69354.72 69354.47 154.5 69366.78 69367.28 69367.03 157.9 69390.28 69390.78 69390.53 144.5 69402.78 69403.28 69403.03 111.0 69426.22 69426.72 69426.47 201.8 69438.91 69439.41 69439.16 218.4 69462.22 69462.72 69462.47 278.4 69474.78 69475.28 69475.03 205.3 69498.22 69498.72 69498.47 196.9 69510.78 69511.28 69511.03 161.4 69534.22 69534.72 69534.47 182.1 69546.78 69547.28 69547.03 196.9 69570.22 69570.72 69570.47 137.6 69582.78 69583.28 69583.03 118.7 69606.28 69606.78 69606.53 123.2 69618.78 69619.28 69619.03 100.4 69642.22 69642.72 69642.47 53.7 69654.78 69655.28 69655.03 12.4 69678.22 69678.72 69678.47 94.1 69690.78 69691.28 69691.03 93.7 69714.22 69714.72 69714.47 63.9 69726.78 69727.28 69727.03 82.3 69750.22 69750.72 69750.47 59.2