Search Results - "Zondlo, M. A"

Open-path, quantum cascade-laser-based sensor for high-resolution atmospheric ammonia measurements by Miller, D. J, Sun, K, Tao, L, Khan, M. A, Zondlo, M. A

“…We demonstrate a compact, open-path, quantum cascade-laser-based atmospheric ammonia sensor operating at 9.06 μm for high-sensitivity, high temporal…”
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Atmospheric observations of Arctic Ocean methane emissions up to 82° north by Kort, E. A., Wofsy, S. C., Daube, B. C., Diao, M., Elkins, J. W., Gao, R. S., Hintsa, E. J., Hurst, D. F., Jimenez, R., Moore, F. L., Spackman, J. R., Zondlo, M. A.

“…Uncertainty in the future atmospheric burden of methane—a potent greenhouse gas—represents an important challenge to the development of realistic climate…”
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Cloud-scale ice-supersaturated regions spatially correlate with high water vapor heterogeneities by Diao, M, Zondlo, M. A, Heymsfield, A. J, Avallone, L. M, Paige, M. E, Beaton, S. P, Campos, T, Rogers, D. C

“…Cirrus clouds have large yet uncertain impacts on Earth's climate. Ice supersaturation (ISS) – where the relative humidity with respect to ice (RHi) is greater…”
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An aircraft-based upper troposphere lower stratosphere O3, CO, and H2O climatology for the Northern Hemisphere by Tilmes, S., Pan, L. L., Hoor, P., Atlas, E., Avery, M. A., Campos, T., Christensen, L. E., Diskin, G. S., Gao, R.-S., Herman, R. L., Hintsa, E. J., Loewenstein, M., Lopez, J., Paige, M. E., Pittman, J. V., Podolske, J. R., Proffitt, M. R., Sachse, G. W., Schiller, C., Schlager, H., Smith, J., Spelten, N., Webster, C., Weinheimer, A., Zondlo, M. A.

“…We present a climatology of O3, CO, and H2O for the upper troposphere and lower stratosphere (UTLS), based on a large collection of high‐resolution research…”
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Impacts of biomass burning in Southeast Asia on ozone and reactive nitrogen over the western Pacific in spring by Kondo, Y., Morino, Y., Takegawa, N., Koike, M., Kita, K., Miyazaki, Y., Sachse, G. W., Vay, S. A., Avery, M. A., Flocke, F., Weinheimer, A. J., Eisele, F. L., Zondlo, M. A., Weber, R. J., Singh, H. B., Chen, G., Crawford, J., Blake, D. R., Fuelberg, H. E., Clarke, A. D., Talbot, R. W., Sandholm, S. T., Browell, E. V., Streets, D. G., Liley, B.

“…Aircraft measurements of ozone (O3) and its precursors (reactive nitrogen, CO, nonmethane hydrocarbons) were made over the western Pacific during the Transport…”
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A flexible and robust neural network IASI‐NH3 retrieval algorithm by Whitburn, S., Van Damme, M., Clarisse, L., Bauduin, S., Heald, C. L., Hadji‐Lazaro, J., Hurtmans, D., Zondlo, M. A., Clerbaux, C., Coheur, P.‐F

“…In this paper, we describe a new flexible and robust NH3 retrieval algorithm from measurements of the Infrared Atmospheric Sounding Interferometer (IASI). The…”
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Aircraft measurements of BrO, IO, glyoxal, NO2, H2O, O2–O2 and aerosol extinction profiles in the tropics: comparison with aircraft-/ship-based in situ and lidar measurements by Volkamer, Rainer, Baidar, S., Campos, T. L., Coburn, S., DiGangi, J. P., Dix, B., Eloranta, E. W., Koenig, T. K., Morley, B., Ortega, I., Pierce, B. R., Reeves, M., Sinreich, R., Wang, S., Zondlo, M. A., Romashkin, P. A.

“…Here, tropospheric chemistry of halogens and organic carbon over tropical oceans modifies ozone and atmospheric aerosols, yet atmospheric models remain largely…”
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Measurements of OH, H2SO4, and MSA during Tropospheric Ozone Production About the Spring Equinox (TOPSE) by Mauldin III, R. L., Cantrell, C. A., Zondlo, M. A., Kosciuch, E., Ridley, B. A., Weber, R., Eisele, F. E.

“…Data from OH, H2SO4, and MSA measurements performed during Tropospheric Ozone Production About the Spring Equinox (TOPSE) are presented. Model simulations of…”
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Aircraft measurements of BrO, IO, glyoxal, NO 2 , H 2 O, O 2 –O 2 and aerosol extinction profiles in the tropics: comparison with aircraft-/ship-based in situ and lidar measurements by Volkamer, R., Baidar, S., Campos, T. L., Coburn, S., DiGangi, J. P., Dix, B., Eloranta, E. W., Koenig, T. K., Morley, B., Ortega, I., Pierce, B. R., Reeves, M., Sinreich, R., Wang, S., Zondlo, M. A., Romashkin, P. A.

“…Tropospheric chemistry of halogens and organic carbon over tropical oceans modifies ozone and atmospheric aerosols, yet atmospheric models remain largely…”
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Correction to "An aircraft-based upper troposphere lower stratosphere O3, CO, and H2O climatology for the Northern Hemisphere" by Tilmes, S., Pan, L. L., Hoor, P., Atlas, E., Avery, M. A., Campos, T., Christensen, L. E., Diskin, G. S., Gao, R.-S., Herman, R. L., Hintsa, E. J., Loewenstein, M., Lopez, J., Paige, M. E., Pittman, J. V., Podolske, J. R., Proffitt, M. R., Sachse, G. W., Schiller, C., Schlager, H., Smith, J., Spelten, N., Webster, C., Weinheimer, A., Zondlo, M. A.

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Chemistry and microphysics of polar stratospheric clouds and cirrus clouds by Zondlo, M A, Hudson, P K, Prenni, A J, Tolbert, M A

“…Ice particles found within polar stratospheric clouds (PSCs) and upper tropospheric cirrus clouds can dramatically impact the chemistry and climate of the…”
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Uptake of HNO3 on ice under upper tropospheric conditions by Zondlo, Mark A., Barone, Stephen B., Tolbert, Margaret A.

“…The uptake of HNO3 on thin ice films was investigated under upper tropospheric temperature and pressure conditions using a Knudsen cell reactor and FTIR…”
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Peroxy radical behavior during the Transport and Chemical Evolution over the Pacific (TRACE-P) campaign as measured aboard the NASA P-3B aircraft by Cantrell, Christopher A., Edwards, G. D., Stephens, S., Mauldin, R. L., Zondlo, M. A., Kosciuch, E., Eisele, F. L., Shetter, R. E., Lefer, B. L., Hall, S., Flocke, F., Weinheimer, A., Fried, A., Apel, E., Kondo, Y., Blake, D. R., Blake, N. J., Simpson, I. J., Bandy, A. R., Thornton, D. C., Heikes, B. G., Singh, H. B., Brune, W. H., Harder, H., Martinez, M., Jacob, D. J., Avery, M. A., Barrick, J. D., Sachse, G. W., Olson, J. R., Crawford, J. H., Clarke, A. D.

“…Peroxy radical concentrations were measured aboard the NASA P‐3B aircraft during the Transport and Chemical Evolution over the Pacific (TRACE‐P) campaign in…”
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Estimating scalar turbulent fluxes with slow-response sensors in the stable atmospheric boundary layer by Allouche, Mohammad, Sevostianov, Vladislav I, Zahn, Einara, Zondlo, Mark A, Dias, Nelson Luís, Katul, Gabriel G, Fuentes, Jose D, Bou-Zeid, Elie

“…Conventional and recently developed approaches for estimating turbulent scalar fluxes under stable atmospheric conditions are evaluated, with a focus on gases…”
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Quantifying uncertainties from mobile-laboratory-derived emissions of well pads using inverse Gaussian methods by Caulton, Dana R, Li, Qi, Bou-Zeid, Elie, Fitts, Jeffrey P, Golston, Levi M, Pan, Da, Lu, Jessica, Lane, Haley M, Buchholz, Bernhard, Guo, Xuehui, McSpiritt, James, Wendt, Lars, Zondlo, Mark A

“…Mobile laboratory measurements provide information on the distribution of CH4 emissions from point sources such as oil and gas wells, but uncertainties are…”
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Bridging the spatial gaps of the Ammonia Monitoring Network using satellite ammonia measurements by Wang, Rui, Pan, Da, Guo, Xuehui, Sun, Kang, Clarisse, Lieven, Van Damme, Martin, Coheur, Pierre-François, Clerbaux, Cathy, Puchalski, Melissa, Zondlo, Mark A

“…Ammonia (NH3) is a key precursor to fine particulate matter (PM2.5) and a primary form of reactive nitrogen. The limited number of NH3 observations hinders the…”
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Development and characterization of an airborne-based instrument used to measure nitric acid during the NASA Transport and Chemical Evolution over the Pacific field experiment by Zondlo, Mark A., Mauldin, R. Leon, Kosciuch, Ed, Cantrell, Christopher A., Eisele, Fred L.

“…A new inlet and instrument have been developed for the rapid measurement of gas phase nitric acid (HNO3) from an airborne platform. The inlet was kept near…”
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Validation of MUSES NH3 observations from AIRS and CrIS against aircraft measurements from DISCOVER-AQ and a surface network in the Magic Valley by Cady-Pereira, Karen E, Guo, Xuehui, Wang, Rui, Leytem, April B, Calkins, Chase, Berry, Elizabeth, Sun, Kang, Müller, Markus, Wisthaler, Armin, Payne, Vivienne H, Shephard, Mark W, Zondlo, Mark A, Kantchev, Valentin

“…Ammonia is a significant precursor of PM2.5 particles and thus contributes to poor air quality in many regions. Furthermore, ammonia concentrations are rising…”
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Calibration of the Total Carbon Column Observing Network using aircraft profile data by Wunch, D., Toon, G. C., Wennberg, P. O., Wofsy, S. C., Stephens, B. B., Fischer, M. L., Uchino, O., Abshire, J. B., Bernath, P., Biraud, S. C., Blavier, J.-F. L., Boone, C., Bowman, K. P., Browell, E. V., Campos, T., Connor, B. J., Daube, B. C., Deutscher, N. M., Diao, M., Elkins, J. W., Gerbig, C., Gottlieb, E., Griffith, D. W. T., Hurst, D. F., Jiménez, R., Keppel-Aleks, G., Kort, E. A., Macatangay, R., Machida, T., Matsueda, H., Moore, F., Morino, I., Park, S., Robinson, J., Roehl, C. M., Sawa, Y., Sherlock, V., Sweeney, C., Tanaka, T., Zondlo, M. A.

“…The Total Carbon Column Observing Network (TCCON) produces precise measurements of the column average dry-air mole fractions of CO2, CO, CH4, N2O and H2O at a…”
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Impact of nitric acid on ice evaporation rates by Warshawsky, Matthew S., Zondlo, Mark A., Tolbert, Margaret A.

“…Recent studies have suggested that nitric acid uptake by ice clouds may decrease ice evaporation rates and thereby prolong the cloud lifetimes. To test this…”
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