41 1001 Wennberg, Paul California Institute of Technology Gas Phase Hydrogen Cyanide 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 HCN, 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 H2O2 and HNO3 calibrants, and proxied to HCN using laboratory calibrations. Absolute calibration was obtained in the laboratory by FTIR spectroscopy. 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) HCN(pptv) 60103.34 60103.84 60103.59 230.4 60120.09 60120.59 60120.34 242.0 60139.34 60139.84 60139.59 227.7 60153.91 60154.41 60154.16 249.6 60175.34 60175.84 60175.59 218.9 60192.09 60192.59 60192.34 243.6 60211.34 60211.84 60211.59 258.7 60228.09 60228.59 60228.34 241.1 60247.41 60247.91 60247.66 250.1 60261.91 60262.41 60262.16 259.5 60283.34 60283.84 60283.59 270.8 60300.09 60300.59 60300.34 261.2 60319.34 60319.84 60319.59 241.9 60336.09 60336.59 60336.34 255.9 60355.34 60355.84 60355.59 263.7 60372.09 60372.59 60372.34 249.4 60391.34 60391.84 60391.59 262.1 60408.09 60408.59 60408.34 258.6 60427.34 60427.84 60427.59 234.3 60444.09 60444.59 60444.34 248.0 60463.34 60463.84 60463.59 224.6 60480.09 60480.59 60480.34 280.6 60499.34 60499.84 60499.59 280.0 60516.09 60516.59 60516.34 222.0 60615.47 60615.97 60615.72 247.0 60630.03 60630.53 60630.28 260.2 60651.53 60652.03 60651.78 270.9 60668.22 60668.72 60668.47 246.0 60687.53 60688.03 60687.78 238.8 60704.22 60704.72 60704.47 238.1 60824.34 60824.84 60824.59 200.8 60841.09 60841.59 60841.34 216.7 60860.34 60860.84 60860.59 209.9 60877.09 60877.59 60877.34 211.1 60896.22 60896.72 60896.47 204.7 60912.97 60913.47 60913.22 198.9 60932.22 60932.72 60932.47 210.1 60948.97 60949.47 60949.22 352.9 60968.34 60968.84 60968.59 196.0 60982.91 60983.41 60983.16 172.8 61004.22 61004.72 61004.47 179.2 61020.97 61021.47 61021.22 189.4 61040.22 61040.72 61040.47 189.0 61056.97 61057.47 61057.22 178.6 61076.28 61076.78 61076.53 175.5 61092.97 61093.47 61093.22 178.3 61112.22 61112.72 61112.47 182.2 61128.97 61129.47 61129.22 191.6 61148.28 61148.78 61148.53 177.1 61164.97 61165.47 61165.22 191.8 61184.22 61184.72 61184.47 189.8 61200.97 61201.47 61201.22 187.4 61220.22 61220.72 61220.47 201.3 61236.97 61237.47 61237.22 211.8 61256.22 61256.72 61256.47 245.1 61272.97 61273.47 61273.22 205.3 61292.22 61292.72 61292.47 194.8 61306.78 61307.28 61307.03 219.7 61328.22 61328.72 61328.47 183.3 61344.97 61345.47 61345.22 210.9 61364.22 61364.72 61364.47 212.1 61380.97 61381.47 61381.22 213.3 61400.22 61400.72 61400.47 213.9 61416.97 61417.47 61417.22 227.5 61436.22 61436.72 61436.47 245.3 61452.97 61453.47 61453.22 250.2 61472.22 61472.72 61472.47 290.2 61486.78 61487.28 61487.03 223.1 61508.22 61508.72 61508.47 298.3 61522.78 61523.28 61523.03 263.6 61544.22 61544.72 61544.47 224.0 61560.97 61561.47 61561.22 237.8 61580.28 61580.78 61580.53 209.6 61596.97 61597.47 61597.22 230.6 61616.22 61616.72 61616.47 223.0 61630.78 61631.28 61631.03 240.3 61652.28 61652.78 61652.53 266.4 61668.97 61669.47 61669.22 243.8 61688.22 61688.72 61688.47 241.8 61704.97 61705.47 61705.22 226.7 61724.22 61724.72 61724.47 226.0 61740.97 61741.47 61741.22 243.7 62283.34 62283.84 62283.59 162.2 62300.09 62300.59 62300.34 192.6 62319.41 62319.91 62319.66 181.7 62336.09 62336.59 62336.34 203.4 62355.34 62355.84 62355.59 210.1 62372.09 62372.59 62372.34 211.7 62391.34 62391.84 62391.59 227.1 62408.09 62408.59 62408.34 203.6 62427.34 62427.84 62427.59 206.6 62441.91 62442.41 62442.16 216.4 62463.41 62463.91 62463.66 191.5 62477.91 62478.41 62478.16 177.2 62499.34 62499.84 62499.59 181.1 62516.09 62516.59 62516.34 200.4 62535.22 62535.72 62535.47 183.9 62551.97 62552.47 62552.22 188.3 62571.34 62571.84 62571.59 199.1 62588.09 62588.59 62588.34 194.1 62607.41 62607.91 62607.66 174.1 62624.09 62624.59 62624.34 185.2 62643.22 62643.72 62643.47 180.8 62659.97 62660.47 62660.22 231.6 62679.22 62679.72 62679.47 193.9 62693.78 62694.28 62694.03 203.2 62715.41 62715.91 62715.66 217.1 62729.91 62730.41 62730.16 202.6 62751.28 62751.78 62751.53 192.9 62767.97 62768.47 62768.22 200.4 62787.28 62787.78 62787.53 204.6 62803.97 62804.47 62804.22 209.7 62823.22 62823.72 62823.47 206.9 62837.78 62838.28 62838.03 190.5 62859.22 62859.72 62859.47 178.4 62875.97 62876.47 62876.22 195.8 62895.22 62895.72 62895.47 178.3 62909.78 62910.28 62910.03 192.4 62931.22 62931.72 62931.47 210.8 62945.78 62946.28 62946.03 219.9 62967.22 62967.72 62967.47 216.7 62983.97 62984.47 62984.22 206.8 63003.22 63003.72 63003.47 196.5 63019.97 63020.47 63020.22 212.7 63039.22 63039.72 63039.47 201.7 63053.78 63054.28 63054.03 238.8 63075.22 63075.72 63075.47 220.2 63091.97 63092.47 63092.22 213.4 63111.41 63111.91 63111.66 207.9 63128.09 63128.59 63128.34 197.9 63147.34 63147.84 63147.59 227.1 63164.09 63164.59 63164.34 207.6 63281.41 63281.91 63281.66 142.9 63298.09 63298.59 63298.34 139.0 63317.34 63317.84 63317.59 158.5 63331.91 63332.41 63332.16 135.5 63353.41 63353.91 63353.66 141.0 63370.09 63370.59 63370.34 139.0 63389.34 63389.84 63389.59 142.7 63406.09 63406.59 63406.34 117.3 63425.34 63425.84 63425.59 113.8 63442.09 63442.59 63442.34 107.9 63461.41 63461.91 63461.66 104.6 63478.09 63478.59 63478.34 120.6 63497.34 63497.84 63497.59 137.2 63514.09 63514.59 63514.34 115.5 63533.34 63533.84 63533.59 116.6 63549.97 63550.47 63550.22 112.9 63569.34 63569.84 63569.59 114.0 63586.09 63586.59 63586.34 103.8 63605.34 63605.84 63605.59 110.1 63622.09 63622.59 63622.34 108.7 63641.34 63641.84 63641.59 102.8 63657.97 63658.47 63658.22 94.6 63677.22 63677.72 63677.47 108.3 63693.97 63694.47 63694.22 106.8 63713.34 63713.84 63713.59 133.1 63730.09 63730.59 63730.34 120.0 63749.41 63749.91 63749.66 141.9 63765.97 63766.47 63766.22 118.7 63785.28 63785.78 63785.53 103.4 63801.97 63802.47 63802.22 120.0 63821.28 63821.78 63821.53 107.1 63837.97 63838.47 63838.22 127.7 63857.22 63857.72 63857.47 133.0 63873.97 63874.47 63874.22 124.0 63893.22 63893.72 63893.47 135.8 63907.78 63908.28 63908.03 140.2 63929.28 63929.78 63929.53 145.5 63943.78 63944.28 63944.03 99.5 63965.22 63965.72 63965.47 125.8 63981.97 63982.47 63982.22 106.5 64001.22 64001.72 64001.47 119.9 64017.97 64018.47 64018.22 109.1 64037.28 64037.78 64037.53 130.4 64053.97 64054.47 64054.22 118.6 64073.28 64073.78 64073.53 118.8 64089.97 64090.47 64090.22 118.1 64109.22 64109.72 64109.47 107.3 64125.97 64126.47 64126.22 113.4 64145.22 64145.72 64145.47 98.9 64161.97 64162.47 64162.22 110.0 64181.22 64181.72 64181.47 111.5 64197.97 64198.47 64198.22 98.3 64315.34 64315.84 64315.59 100.8 64332.09 64332.59 64332.34 77.1 64351.34 64351.84 64351.59 117.3 64368.09 64368.59 64368.34 86.2 64387.34 64387.84 64387.59 92.1 64404.09 64404.59 64404.34 86.2 64423.22 64423.72 64423.47 114.5 64439.97 64440.47 64440.22 89.5 64459.41 64459.91 64459.66 96.2 64476.09 64476.59 64476.34 87.6 64495.41 64495.91 64495.66 80.8 64512.09 64512.59 64512.34 86.1 64531.22 64531.72 64531.47 97.6 64547.97 64548.47 64548.22 84.9 64567.22 64567.72 64567.47 93.3 64583.97 64584.47 64584.22 87.3 64603.34 64603.84 64603.59 73.9 64617.91 64618.41 64618.16 86.2 64639.22 64639.72 64639.47 83.8 64655.97 64656.47 64656.22 75.6 64675.22 64675.72 64675.47 92.2 64691.97 64692.47 64692.22 76.3 64711.22 64711.72 64711.47 83.6 64727.97 64728.47 64728.22 74.5 64747.22 64747.72 64747.47 90.2 64763.97 64764.47 64764.22 76.4 64783.22 64783.72 64783.47 84.8 64799.97 64800.47 64800.22 73.1 64819.22 64819.72 64819.47 67.9 64835.97 64836.47 64836.22 76.1 64855.28 64855.78 64855.53 77.4 64869.78 64870.28 64870.03 93.0 64891.28 64891.78 64891.53 86.9 64907.97 64908.47 64908.22 80.4 64927.22 64927.72 64927.47 92.9 64943.97 64944.47 64944.22 82.4 64963.28 64963.78 64963.53 79.5 64979.97 64980.47 64980.22 83.5 64999.22 64999.72 64999.47 89.4 65013.78 65014.28 65014.03 87.4 65035.22 65035.72 65035.47 97.3 65049.78 65050.28 65050.03 92.6 65071.22 65071.72 65071.47 88.8 65085.78 65086.28 65086.03 85.4 65107.22 65107.72 65107.47 90.5 65123.97 65124.47 65124.22 86.9 65143.22 65143.72 65143.47 86.2 65159.97 65160.47 65160.22 80.9 65179.22 65179.72 65179.47 85.4 65195.97 65196.47 65196.22 90.6 65215.28 65215.78 65215.53 110.5 65229.78 65230.28 65230.03 84.8 65472.41 65472.91 65472.66 81.2 65489.09 65489.59 65489.34 68.3 65508.34 65508.84 65508.59 97.3 65524.97 65525.47 65525.22 88.4 65544.28 65544.78 65544.53 84.0 65560.97 65561.47 65561.22 87.1 65580.22 65580.72 65580.47 96.4 65596.97 65597.47 65597.22 80.4 65616.34 65616.84 65616.59 79.9 65632.97 65633.47 65633.22 80.5 65652.22 65652.72 65652.47 83.2 65668.97 65669.47 65669.22 81.9 65688.22 65688.72 65688.47 83.9 65704.97 65705.47 65705.22 80.5 65724.22 65724.72 65724.47 83.1 65738.78 65739.28 65739.03 92.3 65760.22 65760.72 65760.47 78.2 65774.78 65775.28 65775.03 74.8 65796.22 65796.72 65796.47 76.2 65812.97 65813.47 65813.22 82.4 65832.28 65832.78 65832.53 90.4 65846.78 65847.28 65847.03 77.1 65868.22 65868.72 65868.47 84.2 65884.97 65885.47 65885.22 79.9 65904.28 65904.78 65904.53 102.4 65920.97 65921.47 65921.22 76.4 65940.22 65940.72 65940.47 77.3 65956.97 65957.47 65957.22 80.0 65976.28 65976.78 65976.53 70.2 65992.97 65993.47 65993.22 76.7 66012.28 66012.78 66012.53 81.3 66028.97 66029.47 66029.22 75.9 66048.22 66048.72 66048.47 59.5 66064.97 66065.47 66065.22 59.8 66084.22 66084.72 66084.47 61.3 66098.78 66099.28 66099.03 75.6 66120.28 66120.78 66120.53 54.8 66134.78 66135.28 66135.03 44.1 66156.22 66156.72 66156.47 50.6 66170.78 66171.28 66171.03 58.2 66192.22 66192.72 66192.47 51.0 66206.78 66207.28 66207.03 45.0 66228.28 66228.78 66228.53 53.1 66244.97 66245.47 66245.22 43.2 66264.28 66264.78 66264.53 56.1 66278.78 66279.28 66279.03 39.0 66300.22 66300.72 66300.47 52.3 66316.97 66317.47 66317.22 45.8 66336.22 66336.72 66336.47 56.4 66350.78 66351.28 66351.03 51.1 66372.22 66372.72 66372.47 48.7 66386.78 66387.28 66387.03 47.9 66506.34 66506.84 66506.59 55.7 66520.91 66521.41 66521.16 56.9 66542.34 66542.84 66542.59 55.9 66559.09 66559.59 66559.34 47.8 66578.41 66578.91 66578.66 46.6 66595.09 66595.59 66595.34 47.6 66614.34 66614.84 66614.59 51.6 66631.09 66631.59 66631.34 46.1 66650.41 66650.91 66650.66 38.9 66664.91 66665.41 66665.16 54.8 66686.34 66686.84 66686.59 37.7 66700.91 66701.41 66701.16 53.4 66722.41 66722.91 66722.66 42.4 66736.91 66737.41 66737.16 48.4 66758.41 66758.91 66758.66 48.7 66775.09 66775.59 66775.34 42.3 66794.41 66794.91 66794.66 39.3 66811.09 66811.59 66811.34 42.0 66830.22 66830.72 66830.47 51.2 66844.91 66845.41 66845.16 49.8 66866.34 66866.84 66866.59 51.9 66883.09 66883.59 66883.34 41.6 66902.34 66902.84 66902.59 67.0 66919.09 66919.59 66919.34 56.6 66938.34 66938.84 66938.59 63.3 66952.78 66953.28 66953.03 69.2 66974.22 66974.72 66974.47 66.8 66991.09 66991.59 66991.34 68.4 67010.34 67010.84 67010.59 67.0 67027.09 67027.59 67027.34 62.6 67046.34 67046.84 67046.59 75.3 67062.97 67063.47 67063.22 63.1 67082.22 67082.72 67082.47 67.5 67098.97 67099.47 67099.22 62.9 67118.22 67118.72 67118.47 74.7 67132.91 67133.41 67133.16 77.4 67154.34 67154.84 67154.59 84.2 67170.97 67171.47 67171.22 83.7 67190.22 67190.72 67190.47 87.1 67206.97 67207.47 67207.22 87.6 67226.28 67226.78 67226.53 92.2 67240.78 67241.28 67241.03 95.6 67262.22 67262.72 67262.47 88.9 67278.97 67279.47 67279.22 79.2 67298.22 67298.72 67298.47 90.2 67312.78 67313.28 67313.03 86.4 67334.28 67334.78 67334.53 102.4 67350.97 67351.47 67351.22 84.0 67370.22 67370.72 67370.47 75.9 67386.97 67387.47 67387.22 73.8 67406.28 67406.78 67406.53 78.3 67422.97 67423.47 67423.22 88.0 67540.34 67540.84 67540.59 71.3 67557.09 67557.59 67557.34 81.4 67576.41 67576.91 67576.66 98.5 67593.09 67593.59 67593.34 81.5 67612.28 67612.78 67612.53 85.1 67628.97 67629.47 67629.22 85.9 67648.22 67648.72 67648.47 89.4 67664.97 67665.47 67665.22 81.6 67684.34 67684.84 67684.59 86.9 67701.09 67701.59 67701.34 86.6 67720.22 67720.72 67720.47 89.8 67736.97 67737.47 67737.22 87.3 67756.22 67756.72 67756.47 90.4 67772.97 67773.47 67773.22 86.0 67792.28 67792.78 67792.53 92.9 67808.97 67809.47 67809.22 86.2 67828.28 67828.78 67828.53 81.4 67844.97 67845.47 67845.22 86.1 67864.22 67864.72 67864.47 83.7 67880.97 67881.47 67881.22 87.8 67900.22 67900.72 67900.47 90.1 67916.97 67917.47 67917.22 86.2 67936.22 67936.72 67936.47 84.0 67952.97 67953.47 67953.22 86.8 67972.22 67972.72 67972.47 91.6 67988.97 67989.47 67989.22 85.6 68008.22 68008.72 68008.47 96.9 68024.97 68025.47 68025.22 92.3 68044.22 68044.72 68044.47 94.6 68060.97 68061.47 68061.22 91.4 68080.22 68080.72 68080.47 104.4 68094.78 68095.28 68095.03 86.5 68116.28 68116.78 68116.53 83.5 68132.97 68133.47 68133.22 86.8 68152.22 68152.72 68152.47 96.4 68168.97 68169.47 68169.22 90.1 68188.22 68188.72 68188.47 96.6 68204.97 68205.47 68205.22 99.0 68224.22 68224.72 68224.47 89.6 68240.97 68241.47 68241.22 86.9 68260.22 68260.72 68260.47 89.9 68276.97 68277.47 68277.22 83.1 68296.28 68296.78 68296.53 95.5 68312.97 68313.47 68313.22 95.0 68332.22 68332.72 68332.47 94.4 68348.97 68349.47 68349.22 97.1 68368.22 68368.72 68368.47 99.2 68384.97 68385.47 68385.22 99.8 68404.22 68404.72 68404.47 97.8 68420.97 68421.47 68421.22 103.8 68440.22 68440.72 68440.47 102.2 68456.97 68457.47 68457.22 106.9 68998.41 68998.91 68998.66 72.8 69015.09 69015.59 69015.34 82.8 69034.34 69034.84 69034.59 81.7 69051.09 69051.59 69051.34 78.0 69070.34 69070.84 69070.59 83.4 69087.09 69087.59 69087.34 80.7 69106.34 69106.84 69106.59 77.3 69123.09 69123.59 69123.34 81.7 69142.34 69142.84 69142.59 78.9 69159.09 69159.59 69159.34 84.5 69178.34 69178.84 69178.59 82.1 69195.09 69195.59 69195.34 82.0 69214.34 69214.84 69214.59 99.7 69231.09 69231.59 69231.34 90.9 69250.22 69250.72 69250.47 95.2 69266.97 69267.47 69267.22 87.7 69286.34 69286.84 69286.59 101.8 69300.91 69301.41 69301.16 77.2 69322.34 69322.84 69322.59 91.5 69336.91 69337.41 69337.16 93.5 69358.22 69358.72 69358.47 95.2 69372.78 69373.28 69373.03 76.9 69394.28 69394.78 69394.53 79.5 69410.97 69411.47 69411.22 84.4 69430.34 69430.84 69430.59 93.0 69447.09 69447.59 69447.34 89.7 69466.22 69466.72 69466.47 82.0 69482.97 69483.47 69483.22 77.2 69502.22 69502.72 69502.47 93.1 69518.97 69519.47 69519.22 72.5 69538.22 69538.72 69538.47 75.7 69554.97 69555.47 69555.22 73.9 69574.22 69574.72 69574.47 69.1 69590.97 69591.47 69591.22 64.8 69610.22 69610.72 69610.47 61.2 69626.97 69627.47 69627.22 67.4 69646.28 69646.78 69646.53 68.9 69660.78 69661.28 69661.03 77.1 69682.22 69682.72 69682.47 59.4 69696.78 69697.28 69697.03 65.6 69718.28 69718.78 69718.53 64.7 69734.97 69735.47 69735.22 83.5 69754.22 69754.72 69754.47 77.5