SG Publications 1999

Journal Articles

Bergstrom, R.W. and P.B. Russell. 1999. Estimation of aerosol radiative effects over the mid-latitude North Atlantic region from satellite and in situ measurements. Geophys. Res. Lett. 26:1731-1734.

Bradshaw, J., D. Davis, J. Crawford, G. Chen, R. Shetter, M. Muller, G. Gregory, G. Sachse, D. Blake, B. Heikes, H. Singh, J. Mastromarino, and S. Sandholm. 1999. Photofragmentation two-photon laser-induced fluorescence detection of NO2 and NO: Comparison of measurements with model results based on airborne observations during PEM-Tropics-A. Geophys. Res. Lett. 26:471-474.

Brune, W. H., D. Tan, I. F. Faloona, H. Jaeglé, D. J. Jacob, B. G. Heikes, J. Snow, Y. Kondo, R. Shetter, G. W. Sachse, B. Anderson, G. L. Gregory, S. Vay, H. B. Singh, D. D. Davis, J. H. Crawford, and D. R. Blake. 1999. OH and HO2 chemistry in the north Atlantic free troposphere. Geophys. Res. Lett. 26:3077-3080.

Cho, John Y. N., R. E. Newell, T. P. Bui, E. V. Browell, M. A. Fenn, M. J. Mahoney, G. L. Gregory, G. W. Sachse, S. A. Vay, T. L. Kucsera, and A. M. Thompson. 1999. Observations of convective and dynamical instabilities in tropopause folds and their contribution to stratosphere-troposphere exchange. J. Geophys. Res. 104:21549-21568.

Crawford, J. H., D. Davis, J. Olson, G. Chen, S. Liu, G. Gregory, J. Barrick, G. Sachse, S. Sandholm, B. Heikes, H. Singh, and D. Blake. 1999. Assessment of upper tropospheric HOx sources over the tropical Pacific based on NASA GTE/PEM data: Net effect on HOx and other photochemical parameters. J. Geophys. Res. 104:16,255-16,273.

Drdla, K., R. F. Pueschel, A. W. Strawa, R. C. Cohen, and T. F. Hanisco. 1999. Microphysics and chemistry of sulfate aerosols at warm stratospheric temperatures. J. Geophys. Res. 104, D21, pp. 26737-26751.

Fenn, M. A., E. Browell C. Butler, W. Grant, S. Kooi, M. Clayton, G. Gregory, R. Newell, Y. Zhu, J. Dibb, H. Fuelberg, B. Anderson, A. Bandy, D. Blake, J. Bradshaw, B. Heikes, G. Sachse, S. Sandholm, H. Singh, R. Talbot, and D. Thornton. 1999. Ozone and aerosol distributions and airmass characteristics over the South Pacific during the burning season. J. Geophys. Res. 104:16,167-16,212.

Ferry, G. V., R. F. Pueschel, A. W. Strawa, Y. Kondo, S. D. Howard, S. Verma, M. J. Mahoney, T. P. Bui, J. R. Hannan, H. E. Fueldberg. 1999. Effects of aircraft on aerosol abundance in the upper troposphere. Geophys. Res. Lett. 26:2399-2402.

Ganapol, B., L. Johnson, C. Hlavka, D. Peterson and B. Bond. 1999. LCM2: a coupled leaf/canopy radiative transfer model. Remote Sensing of Environment, 70:153-166.

Gao, R. S., D. W. Fahey, L. A. Del Negro, S. G. Donnelly, E. R. Keim, J. A. Neuman, E. Teverovskaia, P. O. Wennberg, T. F. Hanisco, E. J. Lanzendorf, M. H. Proffitt, J. J. Margitan, J. C. Wilson, J. W. Elkins, R. M. Stimpfle, R. C. Cohen, C. T. McElroy, T. P. Bui, R. J. Salawitch, S. S. Brown, A. R. Ravishankara, R. W. Portmann, M. K. W. Ko, D. K. Weisenstein, and P. A. Newman. 1999. A comparison of observations and model simulations of NOx/NOin the lower stratosphere. Geophys. Res. Lett. 26:1153-1156.

Jaeglé, L., D. J. Jacob, W. H. Brune, I. C. Faloona, D. Tan, Y. Kondo, G. W. Sachse, B. Anderson, G. L. Gregory, S. Vay, H. B. Singh, D. R. Blake, and R. Shetter. 1999. Ozone production in the upper troposphere and the influence of aircraft during SONEX: Approach of NOx-saturated conditions. Geophys. Res. Lett. 26:3081-3084.

Jensen, E. J., W. G. Read, J. Mergenthaler, B. J. Sandor, L. Pfister, and A. Tabazadeh. 1999. High humidities and subvisible cirrus near the tropical tropopause. Geophys. Res. Lett. 26:2347-2350.

Keim, E. R., S. A. McKeen, R. S. Gao, S. G. Donnelly, R. C. Wamsley, L. A. DelNegro, D. W. Fahey, T. F. Hanisco, E. J. Lanzendorf, M. H. Proffitt, J. J. Margitan, E. J. Hintsa, L. Jaegle, C. R. Webster, R. D. May, D. C. Scott, R. J. Salawitch, J. C. Wilson, C. T. McElroy, E. L. Atlas, F. Frocke, and T. P. Bui. 1999. NOpartitioning from measurements of nitrogenand hydrogen radicals in the upper troposphere. Geophys. Res. Lett. 26:51-54.

Keller, R. L. and J. L. Dungan. 1999. Meta-modelling: A knowledge-based approach to facilitating model construction and reuse. Ecological Modelling 119: 89-116.

Kondo, Y., M. Koike, H. Ikeda, B. E. Anderson, K. E. Brunke, Y. Zhao, K. Kita, T. Sugita, H. B. Singh, S. C. Liu, A. Thompson, G. L. Gregory, R. Shetter, G. Sachse, S. A. Vay, E. V. Browell, and M. J. Mahoney. 1999. Impact of aircraft emission on NOx in the lowermost stratosphere at northern midlatitudes. Geophys. Res. Lett. 26:3065-3068.

Kshirsagar, R. J., L. P. Giver, C. Chackerian, Jr., and L. R. Brown. 1999. The Rovibrational intensities of the 2n3 band of 12C16O18O at 4639 cm-1. J. Quant. Spectrosc. Radiat. Transfer. 61:695-701.

Kshirsagar, R. J., L. P. Giver, and C. Chackerian, Jr. 1999. Line intensities in the 2n3 band of 12C16O17O at 4655.2 cm-1. J. Molecular Structure 482-483:295-300.

Liu, S. C. , H. Yu, B. Ridley, Y. Wang, D. D. Davis, Y. Kondo, M. Koike, B. E. Anderson, S. A. Vay, G. W. Sachse, G. L. Gregory, H. Fuelburg, A. Thompson, and H. Singh. 1999. Sources of reactive nitrogen in the upper troposphere during SONEX. Geophys. Res. Lett. 26:2441-2444.

Nepstad, D. C., A. Veríssimo, A. Alencar, C. Nobre, E. Lima, P. Lefebvre, P. Schlesinger, C. Potter, P. Moutinho, E. Mendoza, M. Cochrane, and V. Brooks. 1999. Large-scale impoverishment of Amazonian forests by logging and fire. Nature 398:505-508.

Potter, C. S. and S. A. Klooster. 1999. Detecting a terrestrial biosphere sink for carbon dioxide: Interannual ecosystem modeling for the mid-1980s. Climatic Change 42(3):489-503.

Potter, C. S., S. A. Klooster, and V. Brooks. 1999. Interannual variability in terrestrial net primary production: Exploration of trends and controls on regional to global scales. Ecosystems 2(1): 36-48.

Potter, C. S. 1999. Terrestrial biomass and the effects of deforestation on the global carbon cycle. BioScience. 49:769-778.

Potter, C. S. and S. A. Klooster. 1999. Dynamic global vegetation modeling (DGVM) for prediction of plant functional types and biogenic trace gas fluxes. Global Ecology and Biogeography Letters. 8(6): 473-488.

Potter, C. S., J. C. Coughlan, and V. Brooks. 1999. Investigations of BOREAS spatial data in support of regional ecosystem modeling. J. Geophys. Res. 104:27,771-27,788.

Russell, P. B., P. V. Hobbs, and L. L. Stowe. 1999. Aerosol properties and radiative effects in the United States Mid-Atlantic haze plume: An overview of the Tropospheric Aerosol Radiative Forcing Observational Experiment (TARFOX). J. Geophys. Res. 104:2213-2222.

Russell, P. B., J. M. Livingston, P. Hignett, S. Kinne, J. Wong, and P. V. Hobbs. 1999. Aerosol-induced radiative flux changes off the United States Mid-Atlantic coast: Comparison of values calculated from sunphotometer and in situ data with those measured by airborne pyranometer. J. Geophys. Res. 104:2289-2307.

Schmid, B., J. J. Michalsky, R. N. Halthore, M. C. Beauharnois, L. C. Harrison, J. M. Livingston, and P. B. Russell. 1999. Comparison of aerosol optical depth from four solar radiometers during the Fall 1997 ARM Intensive Observation Period. Geophys. Res. Lett. 26(17):2725-2728.

Schultz, M. G., D. J. Jacob, Y. Wang, J. A. Logan, E. L. Atlas, D. R. Blake, N. J. Blake, J. D Bradshaw, E. V. Browell, M. A. Fenn, F. Flocke, G. L. Gregory, B. G. Heikes, G. W. Sache, S. T. Sandholm, R. E. Shetter, H. B. Singh, and R. W. Talbot. 1999. On the origin of tropospheric ozone and NOx over the tropical south Pacific. J. Geophys. Res. 104:5829-5843.

Singh, H. B., A. Thompson, and H. Schlager. 1999. SONEX airborne mission and coordinated POLINAT-2 activity: Overview and accomplishments. Geophys. Res. Lett. 26:3053-3056.

Steele, H. M., K. D. Drdla, R. P. Turco, J. D. Lumpe, and R. M. Bevilacqua. 1999. Tracking polar stratospheric cloud development with POAM II and a microphysical model. Geophys. Res. Lett. 26:287-290.

Strawa, A. W., K. Drdla, G. V. Ferry, S. Verma, M. Yasuda, R. J. Salawitch, R. F. Pueschel, R. S. Gao, S. D. Howard, T. P. Bui, M. Loewenstein, and J. W. Elkins. 1999. Carbonaceous aerosol (Soot) measured in the lower stratosphere during POLARIS and its role in stratospheric chemistry. J. Geophys. Res. 104(D21): 26753-26766.

Tabazadeh, A., O. B. Toon, and E. J. Jensen. 1999. A surface chemistry model for nonreactive trace gas absorption on ice: Implications for nitric acid scavenging by cirrus. Geophys. Res. Lett. 26:2211-2214.

Talbot, R. W., J. Dibb, E. Scheuer, D. Blake, N. Blake, G. Gregory, G. Sachse, J. Bradshaw, S. Sandholm and H. Singh. 1999. Influence of biomass combustion emissions on the distribution of acidic trace gases over the southern Pacific basin during austral springtime. J. Geophys. Res. 104:5623-5634.

Talbot, R. W., J. E. Dibb, E. M. Scheuer, Y. Kondo, M. Koike, H. B. Singh, L. B. Salas, Y. Fukui, J. O. Ballenthin, R. F. Meads, T. M. Miller, D. E. Hunton, A. A. Viggiano, D. R. Blake, N. J. Blake, E. Atlas, F. Flocke, D. J. Jacobs, and L. Jaeglé. 1999. Reactive nitrogen budget during the SONEX mission. Geophys. Res. Lett. 26:3057-3060.

Tanre, D., L. A. Remer, Y. J. Kaufman, S. Mattoo, P. V. Hobbs, J. M. Livingston, P. B. Russell, and A. Smirnov. 1999. Retrieval of aerosol optical thickness and size distribution over ocean from the MODIS airborne simulator during TARFOX. J. Geophys. Res. 104:2261-2278.

Taylor, J. P., and A. S. Ackerman. 1999. A case study of pronounced perturbations to cloud properties and boundary layer dynamics due to aerosol emissions. Q. J. R. Meteorol. Soc. 125:2643-2661.

Thakur, A. N., H. B. Singh, P. Mariani, Y. Chen, Y. Wang, D. Jacob, G. Brasseur, J-F. Muller, and M. Lawrence. 1999. Distribution of reactive nitrogen species in the remote free troposphere: Data and model comparisons. Atmos. Environ 33:1403-1422.

Veefkind, J. P., G. de Leeuw, P. A. Durkee, P. B. Russell, P. V. Hobbs, and J. M. Livingston. 1999. Aerosol optical depth retrieval using ATSR-2 and AVHRR data during TARFOX. J. Geophys. Res. 104:2253-2260.

Wohlfrom, K.-H., T. Hauler, F. Arnold, H. Singh. 1999. Acetone in the free troposphere and lower stratosphere: Aircraft-based IMRMS and GC measurements over the North Atlantic and a first comparison. Geophys. Res. Lett. 26:2849-2852.

Book Chapters

Chackerian, Jr., C., R. J. Kshirsagar, L. P. Giver, and L. R. Brown. 1999. Absolute Rovibrational Intensities for the 1S+ v=3-0 Band of 12C16O Obtained with Kitt Peak and Bomem FTS Instruments. Pages 139-141 in Fourier Transform Spectrosopy: New Methods and Applications, OSA Technical Digest, Optical Society of America, Washington, DC.

Dungan, J. L. 1999. Conditional Simulation: An Alternative to Estimation for Achieving Mapping Objectives. Pages 135-152 in Spatial Statistics for Remote Sensing. Stein, van der Meer and Gorte, eds. Kluwer Academic Publishers.

Abstracts, Proceedings, and Conference Presentations

Ackerman, A. S., O. B. Toon, and D. E. Stevens. 1999. Dramatic responses of boundary layer and cloud dynamics due to changes in aerosol concentrations. MMM Seminar at NCAR. January, Boulder, CO.

Ackerman, A. S. 1999. Cloud microphysics on earth and elsewhere. From Giant Planets to Cool Stars. June, Flagstaff, AZ.

Ackerman, A. S., O. B. Toon, and D. E. Stevens. 1999. Reduction of trade-cumulus cloud cover due to solar heating by dark haze. INDOEX Workshop. September, Utrecht, NL.

Ackerman, A. S., O. B. Toon, and D. E. Stevens. 1999. Reduction of trade-cumulus cloud cover due to solar heating by dark haze. AGU Fall Meetings, December, San Francisco, CA.

Ambos, E. L., E. Metzger, E. W. Ng, M. Pine, M. Syvertson, and J. W. Skiles. 1999. Project ALERT: An effective regional partnership for pre-service teacher earth system science education. American Geophysical Union meetings, San Francisco, December 6-10.

Bauman, J. J., and P. B. Russell. 1999. Volcanic signatures in estimates of stratospheric aerosol size, distribution width, surface area, and volume deduced from global satellite-based observations. Fall Meeting, American Geophysical Union, 13-17 December, San Francisco.

Bergstrom, R. W., and P. B. Russell. 1999. North Atlantic aerosol radiative effects based on satellite measurements and aerosol intensive properties from TARFOX and ACE 2, 18th Annual Conference, American Association for Aerosol Research, 11-15 October, Tacoma.

Bergstrom, R. W., P. B. Russell, and H. Jonsson. 1999. Airborne solar radiant flux measurements during ACE 2. Eighteenth Annual Conference, American Association for Aerosol Research, 11-15 October, Tacoma.

Bergstrom, R. W. and P. B. Russell. 1999. North Atlantic aerosol radiative effects based on satellite measurements and aerosol intensive properties from TARFOX and ACE 2. IUGG99: XXII General Assembly of the International Union of Geodesy and Geophysics, July, Birmingham , ENGLAND.

Chackerian, Jr., C., R. S. Freedman, L. P. Giver, R. J. Kshirsagar, and L. R. Brown. 1999. Updated electric dipole moment function for carbon monoxide. Sixteenth Colloquium on High Resolution Molecular Spectroscopy. September 6-10 Universite de Bourgoge, Dijon, France.

Chatfield, R. B. 1999. Studying the effects of biomass burning out to 20,000 km. Institutes. of Physics and Astrogeophysics. April. Universidade de São Paulo, São Paulo, Brazil.

Chatfield, R.B., et al. 1999. Attributing sources for NOx observed in the Atlantic free troposphere during the SONEX period: Models and observations emphasize effects of aircraft. Gordon Conference on Atmospheric Chemistry. June 16. Newport, R.I.

Chatfield, R.B. 1999. The case for a return to the continental tropics: TRACE-B. Planning Workshop for Integration of Satellite Calibration/Validation and Research-Oriented Field Missions in the Next Decade. August 25. Snowmass Village, Colorado.

Chatfield, R.B., I. Faloona, W. Brune, Z. Guo, L. Jaeglé, Lyatt, and Y. Kondo. 1999. Quantifying the relative contribution of aircraft NOx during the SONEX period: How widespread was "superproduction" of O3 in the upper troposphere? Sixth Scientific Conference of the International Global Atmospheric Chemistry Project (IGAC). September 15. Bologna, Italy.

Cheung, F. K., E. W. Ng, H-L. Qiu, and J. W. Skiles. 1999. ALERT Digital Library. American Geophysical Union meetings, San Francisco, December 6-10. (abstract)

Collins, D. R., Jonsson, H. H., Seinfeld, J. H., Flagan, R. C., Gassó, S., Hegg, D. A, Russell, P. B., Schmid, B., Livingston, J. M., Öström, E., Noone, K. J., Russell, L. M. and Putaud, J. P. 1999. In situ aerosol size distributions and clear column radiative closure during ACE-2. American Association for Aerosol Research 1999 - Eighteenth Annual Conference, October 11-15, Tacoma, Washington, USA.

Drdla, K., et al. 1998. Microphysics of sulphate aerosols at warm stratospheric temperatures. AGU Fall Meeting. December, San Francisco, CA.

Dungan, J. L. 1999. Canopy cover predictions using ground observations and remotely sensed data. Ecological Society of America Annual Meeting, Spokane, WA. August.

Dungan, J. L. 1999. Predicting canopy cover using ground and remotely sensed data. AGU Fall Meeting. December, San Francisco, CA.

Dungan, J. L. 1999. Predicting vegetation amount using ground and remotely sensed data: Geostatistical alternatives. Spatial Statistics for Production Ecology: GIS, Remote Sensing and Modelling, Wageningen Agricultural University, The Netherlands.

Formenti P., T. Elias, E.J. Welton, J.P. Diaz, F. Exposito, B. Schmid, D. Powell, B.N. Holben, A. Smirnov, M.O. Andreae, C. Devaux, K. Voss, J. Lelieveld, J.M. Livingston, P.B. Russell, and P.A. Durkee. 1999. Altitude differentiated aerosol extinction over Tenerife (North Atlantic Ocean) during ACE-2 by means of ground and airborne photometry and lidar measurements. September 6-10, European Aerosol Conference, Prague.

Formenti P., T. Elias, E. J. Welton, J. P. Diaz, F. Exposito, B. Schmid, D. Powell, B. N. Holben, A. Smirnov, M. O. Andreae, C. Devaux, K. Voss, J. Lelieveld, J. M. Livingston, P. B. Russell, and P. A. Durkee. 1999. Altitude differentiated aerosol extinction over Tenerife (North Atlantic Ocean) during ACE-2 by means of ground and airborne photometry and lidar measurements. Sixth Scientific Conference of the International Global Atmospheric Chemistry Project (IGAC) September 13-17, Bologna, Italy.

Foschi, P.G., K.L. Pagan, M.E. Hervig, and M.D. Fromm. 1999.A comparison of remote sensing methods for detecting and studying PSCs: A case study of 18-20 February, 1996 in the Arctic. POAM Science Team Meeting, 20-22 October. Berkeley Springs, WV.

Ganapol, B., L. Johnson, and C. Hlavka. 1999. A coupled leaf/canopy nested radiative transfer model. Proceedings, American Nuclear Society Topical Meeting on Mathematics and Computation in Reactor Physics and Environmental Analysis. September, Madrid Spain.

Giver, L. P., C. Chackerian, Jr., R. S. Freedman, and P. Varanasi. 1999. Line intensity measurements in the 9650 to 9995 cm-1 region of the 041-000 water vapor band. Atmospheric Radiation Measurements Symposium. March, San Antonio, TX.

Giver, L. P., C. Chackerian, Jr., and P. Varanasi. 1999. Water vapor line intensity corrections for HITRAN’96: 0.40 to 1.24 mm (8036 to 25250 cm-1). Atmospheric Meeting. July, Birmingham, England.

Giver, L. P., C. Chackerian, Jr., and P. Varavasi. 1999. Long-path near-infrared line intensities for H2O. Atmospheric Spectroscopy Applications Meeting. September 1-3, Universite de Reims, Reims, France.

Giver, L. P., C. Chackerian, Jr., D. W. Schwenke, and P. Varanasi. 1999. Rovibrational assignments for 71 water vapor lines listed, but not assigned, in HITRAN’96: 0.87 to 1.00 mm (10000 to 11500 cm-1). Atmospheric Spectroscopy Applications Meeting. September 1-3, Universite de Reims, Reims, France.

Gualtieri, J., S. Chettri, R. Cromp, and L. Johnson. 1999. Support vector machine classifiers as applied to AVIRIS data. Proc. Eighth JPL Airborne Geoscience Workshop, 8-11 February, Pasadena CA.

Hervig, M.E., and K.L. Pagan. 1999. Properties of stratospheric and tropospheric clouds determined using AVHRR: Part I. AGU Spring Meeting. Boston, MA. May

Jensen, E. J. 1999. How effectively can freeze-drying by subvisible cirrus dehydrate air rising slowly across the tropical rropopause? Spring AGU meeting. Boston, MA.

Jensen, E. J., A. Tabazadeh, W. Read, S. Bauchum, and O. B. Toon. 1999. Persistent contrail frequencies calculated with UARS MLS humidity data. AEAP meeting. Virginia Beach, VA.

Jensen, E. J., O. B. Toon, S. A. Vay, J. Ovarlez, R. May, and P. Bui. 1999. Optically thin cirrus forming in supersaturated regions in the upper troposphere. AEAP meeting. Virginia Beach, VA.

Jensen, E. J. 1999. Lecture on contrails. NCAR Symposium on Ice in the Atmosphere. Spring, Boulder, CO.

Johnson, L., C. Hlavka, and B. Ganapol. 1999. Prediction of leaf and canopy reflectance with the LCM2 radiative transfer model. EOS, Transactions, American Geophysical Union 80(46): F62, 16 November, Supplement.

Jost, H. and M. Loewenstein. 1999. Argus: A lightweight TDL instrument to measure stratospheric tracers. Application of Tunable Diode and Other Infrared Sources for Atmospheric Studies and Industrial Processing Monitoring II, SPIE vol 3758. Denver, CO.

Livingston, J.M., Kapustin, V.N., Schmid, B., Russell, P.B., Quinn, P.K., Bates, T.S., Durkee, P.A., Nielsen, K., Freudenthaler, V., Wiegner, M., and Covert, D.S. 1999. Shipboard sunphotometer measurements of aerosol optical depth spectra during ACE 2 and comparison with selected ship, aircraft, and satellite measurements. Sixth Scientific Conference of the International Global Atmospheric Chemistry Project (IGAC) September 13-17, Bologna, Italy.

Michalsky J., B. Schmid, R. Halthore, C. Pavlovski, T. Ackerman, M. Beauharnois, L. Harrison, J. Livingston, and P. Russell. 1999. Comparison of sunphotometric measurements during the fall 1997 ARM intensive observation period. American Meteorological Society Conference on Atmospheric Radiation, 26 June-2 July Madison, Wisconsin.

Pagan, K. L., M. E. Hervig, P. G. Foschi, and D. Lubin. 1999. Properties of stratospheric and tropospheric clouds determined using AVHRR: Part II. AGU Spring Meeting, May. Boston, MA.

Pilewskie, P., M. Rabbette, P. V. Hobbs, and J. Caron. 1999. The solar radiative energy budget in the Arctic. Fifth Conference on Polar Meteorology. January 11-15, Dallas, TX.

Pilewskie, P., and M. Rabbette. 1999. The discrepancy between measured and modeled atmospheric absorption: Dependence on water vapor. Tenth Conference on Atmospheric Radiation. June 24-30, Madison, WI.

Potter, C., A. Torregrosa, S. Klooster, J. Coughlan, V. Brooks-Genovese, J. Dungan, and M. Bobo. 1999. Modeling seasonal and interannual variability in terrestrial ecosystem hydrologic fluxes for the Brazilian Amazon Region. NASA Land Surface Hydrology Investigator's Meeting. November 2-3, Columbia, Maryland.

Potter, C. S., S. A. Klooster, and V. Brooks-Genovese. 1999. Modeling terrestrial net primary production on regional to global scales: Use of satellite remote sensing inputs for multi-year studies. AGU Fall Meeting. December, San Francisco, CA.

Potter, C. S., V. Brooks-Genovese. J. Bubier, P. Crill, and P. LaFleur. 1999. Ecosystem modeling of methane and carbon dioxide fluxes for Boreal forest sites. AGU Fall Meeting. December, San Francisco, CA.

Potter, C. S., S. Klooster, C. R. de Carvalho, V. Brooks-Genovese, A. Torregrosa, J. Dungan, M. Bobo, and J. Coughlan. 1999. Modeling seasonal and interannual variability in ecosystem carbon cycling for the Brazilian Amazon Region. AGU Fall Meeting. December, San Francisco, CA.

Rabbette, M., and P. Pilewskie. 1999. Principal component analysis of Arctic solar spectral irradiance measurements. Fifth Conference on Polar Meteorology. January 11-15, Dallas, TX.

Redemann, J., P. B. Russell, R. P. Turco, B. Schmid, J. M. Livingston, R. W. Bergstrom, K.-N. Liou, R. F. Pueschel, E. V. Browell, P. A. Durkee, H. H. Jonsson, D. R. Collins, R. C. Flagan, J. H. Seinfeld, S. Gassó, E. Öström, K. J. Noone, E. J. Welton, K. J. Voss, H. R. Gordon, D. M. Powell, and J. A. Reagan. 1999. Synthesis of remote sensing and in situ measurements of dust aerosol events. Workshop on Mineral Dust, June 9-11, Boulder, CO.

Redemann, J., P. B. Russell, P. Hamill. 1999. Measurements of modeling of aerosol absorption and single scattering albedo at ambient relative humidity. AGU Fall Meetings, December, San Francisco, CA.

Russell, P. B., J. M. Livingston, B. Schmid, R. W. Bergstrom, P. Hignett, P. V. Hobbs, and P. A. Durkee. 1999. North Atlantic aerosol properties and direct radiative effects: key results from TARFOX and ACE 2. International Conference and Workshops, Aerosols, Radiation Budget - Land Surfaces - Ocean Colour, January 18-22, Meribel, France.

Russell, P. B., J. M. Livingston, B. Schmid, R. W. Bergstrom, P. Hignett, P. V. Hobbs, and P. A. Durkee. 1999. North Atlantic aerosol properties and direct radiative effects: Key results from TARFOX and ACE 2. American Meteorological Society Conference on Atmospheric Radiation, 26 June-2 July Madison, Wisconsin.

Russell, P. B., R. W. Bergstrom, J. M. Livingston, and B. Schmid. 1999. North Atlantic aerosol properties for radiative impact assessments, derived from column closure analyses in TARFOX and ACE 2, IUGG99. XXII General Assembly of the International Union of Geodesy and Geophysics, 18-30 July Birmingham, England.

Russell P. B., R. W. Bergstrom, B. Schmid, J. M. Livingston, J. Redemann, P. K. Quinn, C. M. Carrico, M. J. Rood. 1999. North Atlantic aerosol single scattering albedos: TARFOX and ACE 2 results and their relation to radiative effects derived from satellite optical depths. EOS Trans. Amer. Geophys. Union, 80, F212.

Russell, P. B., R. W. Bergstrom, B. Schmid, and J. M. Livingston. 1999. North Atlantic aerosol properties for radiative impact assessments, derived from column closure analyses in TARFOX and ACE 2. Sixth Scientific Conference of the International Global Atmospheric Chemistry Project (IGAC) September 13-17, Bologna, Italy.

Russell, P. B., R. W. Bergstrom, B. Schmid. 1999. North Atlantic aerosol radiative impacts based on satellite measurements and aerosol intensive properties from TARFOX and ACE 2. Sixth Scientific Conference of the international Global Atmospheric Chemistry Project (IGAC), September, Bologna, Italy.

Russell, P. B. 1999. Aerosol properties and radiative effects in the United States Atlantic Haze Plume: Key results from the Tropospheric Aerosol Radiative Forcing Observational Experiment (TARFOX). Second ACE 2 Data Workshop, 13-16 April, Toulouse, France.

Russell, P. B. 1999. Summary of ACE 2 CLEARCOLUMN results from Tenerife, the Pelican aircraft, and the R/V Vodyanitskiy ship. Second ACE 2 Data Workshop. April 13-16, Toulouse, France.

Russell, P. B., B. Schmid, J. Redemann, J. M. Livingston, P. Pilewskie. 1999. Airborne sunphotometry and integrated analyses of smoke and haze aerosols, thin clouds, water vapor and ozone in SAFARI 2000: A proposed investigation. NASA EOS SAFARI 2000 Workshop. May 12-14, Boulder, CO.

Russell, P. B. and J. Bauman. 1999. 1984-1995 Evolution of stratospheric aerosol size, surface area and volume derived by combining SAGE II and CLAES extinction measurements. SAGE II Science Team meeting, Hamption University, August, Hamption, VA.

Russell, P. B., R. Bergstrom, B. Schmid, J. Redemann, J. M. Livingston, J. Redemann, P. K. Quinn, C. M. Carrico, M. J. Rood. 1999. North Atlantic Aerosol Single Scattering Albedos: TARFOX and ACE 2 results and their relation to radiative effects derived from satellite optical depth. AGU Fall Meetings, December, San Francisco, CA.

Schmid, B., Russell, P. B., J. M. Livingston, S. Gasso, D. Hegg, D. Collins, J. Seinfeld, E. Ostrom, K. Noone, P. Durkee, E. J. Welton, K. Voss, V. N. Kapustin, T. S. Bates, and P. K. Quinn. 1999. Clear column closure studies of urban-marine and mineral-dust aerosols using aircraft, ship, satellite and ground-based measurements in ACE-2. International Conference and Workshops, Aerosols, Radiation Budget - Land Surfaces - Ocean Colour. January 18-22, Meribel, France.

Schmid, B, Russell, P. B., J. M. Livingston, S. Gasso, D. Hegg, D. Collins, J. Seinfeld, E. Ostrom, K. Noone, P. Durkee, E. J. Welton, K. Voss, V. N. Kapustin, T. S. Bates, and P. K. Quinn. 1999. Clear column closure studies of urban-marine and mineral-dust aerosols using aircraft, ship, satellite and ground-based measurements in ACE-2. ARM Science Team Meeting, 22-26 March, San Antonio, Texas.

Schmid, B., Russell, P. B., J. M. Livingston, S. Gasso, D. Hegg, D. Collins, J. Seinfeld, E. Ostrom, K. Noone, P. Durkee, E. J. Welton, K. Voss, V. N. Kapustin, T. S. Bates, and P. K. Quinn. 1999. Clear sky column closure studies of urban-marine and mineral-dust aerosols using aircraft, ship, satellite and ground-based measurements in ACE-2. American Meteorological Society Conference on Atmospheric Radiation. 26 June-2 July, Madison, Wisconsin.

Schmid B, D. Collins, S. Gassó, E. Öström, D. Powell, E. Welton, P. Durkee, J. Livingston, P. Russell, R. Flagan, J. Seinfeld, D. Hegg, K. Noone, K. Voss, H. Gordon, J. Reagan, and J. Spinhirne. 1999. Clear-sky closure studies of tropospheric aerosol and water vapor during ACE-2 using airborne sunphotometer, airborne in-situ, space-borne, and ground-based measurements. EOS Trans. Amer. Geophys. Union, 80, F193.

Schmid, B., J. M. Livingston, P. B. Russell, P. A. Durkee, H. Jonsson, D. Collins, R. C. Flagan, J. Seinfeld, S. Gasso, D. A. Hegg, E. Ostrom, K. J. Noone, E. J. Welton, K. Voss, H. R. Gordon, P. Formenti, and M. O. Andreae. 1999. Clear sky closure studies of lower tropospheric aerosol and water vapor during ACE 2 using airborne sunphotometer, airborne in-situ, space-borne, and ground-based measurements. Sixth Scientific Conference of the International Global Atmospheric Chemistry Project (IGAC). September 13-17, Bologna, Italy.

Seitz, J. C., H. D'Antoni, and J. W. Skiles. 1999. Correlation of TOMS ozone and ground-based UV-B measurements for Ushuaia, Argentina. American Geophysical Union meetings, San Francisco, December 6-10.

Singh, H. B. 1999. Impact of aircraft emissions on NOx and ozone. Seminar, UC Berkeley. June.

Singh, H. B. 1999. Upper tropospheric photochemistry. Presentation at the IUGG conference, United Kingdom. August.

Singh, H. B. 1999. Role of oxygenated hydrocarbons in the atmosphere. H. Julian Allen award presentation. August.

Skiles, J. W. 1999. An Associate of Arts in Community Colleges for Training in Earth Science (ACTES) Project. The Earth Observer 11(3):27-29. (May/June)

Strawa, A. W. 1998. Carbonaceous aerosols and photochemistry in POLARIS. AGU Fall meetings. December, San Francisco, CA.

Strawa, A. W. 1999. Aerosols and geography. Mission Geography Team. May.

Tabazadeh, A. 1998. Nitric acid scavenging by ice particles: Implication for ozone production in the upper troposphere. AGU Fall Meeting. December, San Francisco, CA.

Tabazadeh, A. 1999. Conditions for denitrification in the winter polar stratosphere. NASA HSRP meeting. April, Virginia Beach, VA.

Tabazadeh, A. 1999. Quantifying denitrification and its effect on ozone recovery. AGU Spring Meeting. May, Boston, MA.

Tabazadeh, A. 1999. Denitrification and dehydration conditions inferred from upper atmosphere research satellite observations. NCAR invited talk. July, Boulder, CO.

NASA Tech Memoranda

Johnson, L.F. 1999. Response of Grape Leaf Spectra to Phylloxera Infestation. NASA Report #CR208765.

WWW pages and CD-ROMS

Russell, P. B. [webmaster D. McIntosh]. 1999. Tropospheric Aerosol Radiative Forcing Observational Experiment, a field project of the International Global Atmospheric Chemistry Project (IGAC) Focus 8, Atmospheric Aerosols. http://geo.arc.nasa.gov/sgg/tarfox/index.html

Russell, P. B. [webmaster D. McIntosh]. 1999. TARFOX Science Team (TST) Preliminary Data and Information Web Page. http://geo.arc.nasa.gov/sgg/tarfox/TST/TSTpw.html

Schmid, B., et al. [webmaster D. McIntosh]. 1999. ACE-2 DATA @ NASA Ames Research Center, North Atlantic Regional Aerosol Characterization. Experiment, http://geo.arc.nasa.gov/sgg/ACE-2/