Characterization of cumulus cloud fields using trajectories in the center of gravity versus water mass phase space: 1. Cloud tracking and phase space description
Published Date:
2016
Source:
Journal of Geophysical Research-Atmospheres, 121(11), 6336-6355.
We study the evolution of warm convective cloud fields using large eddy simulations of continental and trade cumulus. Individual clouds are tracked a posteriori from formation to dissipation using a 3-D cloud-tracking algorithm, and results are presented in the phase space of center of gravity altitude versus cloud liquid water mass (CvM space). The CvM space is shown to contain rich information on cloud field characteristics, cloud morphology, and common cloud development pathways, together facilitating a comprehensive understanding of the cloud field. In this part we show how the meteorological (thermodynamic) conditions that determine the cloud properties are projected on the CvM phase space and how changes in the initial conditions affect the clouds' trajectories in this space. This part sets the stage for a detailed microphysical analysis that will be shown in part II.
Sullivan, J. T.; McGee, T. J.; Langford, A. O.; Alvarez, R. J.; Senff, C. J.; Reddy, P. J.; Thompson, A. M.; Twigg, L. W.; Sumnicht, G. K.; Lee, P.; Weinheimer, A.; Knote, C.; Long, R. W.; Hoff, R. M.;
Published Date:
2016
Source:
Journal of Geophysical Research-Atmospheres, 121(17), 10377-10390.
Description:
A high-ozone (O-3) pollution episode was observed on 22 July 2014 during the concurrent Deriving Information on Surface Conditions from Column and Vertically Resolved Observations Relevant to Air Quality (DISCOVER-AQ) and Front Range Air Pollution an...
Skinner, P. S.; Wheatley, D. M.; Knopfmeier, K. H.; Reinhart, A. E.; Choate, J. J.; Jones, T. A.; Creager, G. J.; Dowell, D. C.; Alexander, C. R.; Ladwig, T. T.; Wicker, L. J.; Heinselman, P. L.; Minnis, P.; Palikonda, R.;
Published Date:
2018
Source:
Weather and Forecasting, 33(5), 1225-1250.
Description:
An object-based verification methodology for the NSSL Experimental Warn-on-Forecast System for ensembles (NEWS-e) has been developed and applied to 32 cases between December 2015 and June 2017. NEWS-e forecast objects of composite reflectivity and 30...
Hayes, P. L.; Carlton, A. G.; Baker, K. R.; Ahmadov, R.; Washenfelder, R. A.; Alvarez, S.; Rappengluck, B.; Gilman, J. B.; Kuster, W. C.; de Gouw, J. A.; Zotter, P.; Prevot, A. S. H.; Szidat, S.; Kleindienst, T. E.; Offenberg, J. H.; Ma, P. K.; Jimenez, J. L.;
Published Date:
2015
Source:
Atmospheric Chemistry and Physics, 15(10), 5773-5801.
Description:
Four different literature parameterizations for the formation and evolution of urban secondary organic aerosol (SOA) frequently used in 3-D models are evaluated using a 0-D box model representing the Los Angeles metropolitan region during the Califor...
Jordan, C. E.; Pszenny, A. A. P.; Keene, W. C.; Cooper, O. R.; Deegan, B.; Maben, J.; Routhier, M.; Sander, R.; Young, A. H.;
Published Date:
2015
Source:
Journal of Geophysical Research-Atmospheres, 120(2), 678-694.
Description:
The Nitrogen, Aerosol Composition, and Halogens on a Tall Tower campaign (February-March 2011) near Boulder, Colorado, investigated nighttime ClNO2 production and processing. Virtually all particulate Cl was in the form of ionic Cl-. The size distrib...
Manfred, K. M.; Washenfelder, R. A.; Wagner, N. L.; Adler, G.; Erdesz, F.; Womack, C. C.; Lamb, K. D.; Schwarz, J. P.; Franchin, A.; Selimovic, V.; Yokelson, R. J.; Murphy, D. M.;
Published Date:
2018
Source:
Atmospheric Chemistry and Physics, 18(3), 1879-1894.
Description:
Particle morphology is an important parameter affecting aerosol optical properties that are relevant to climate and air quality, yet it is poorly constrained due to sparse in situ measurements. Biomass burning is a large source of aerosol that genera...
Journal of Geophysical Research-Atmospheres, 123(15), 7950-7973.
Description:
In this study, we analyze a set of agroclimatological indices across West Africa and assess their projected changes for the future. We apply the regional climate model CCLM (COnsortium for Small-scale MOdelling in CLimate Mode) with a high spatial re...
Rollins, A. W.; Thornberry, T. D.; Atlas, E.; Navarro, M.; Schauffler, S.; Moore, F.; Elkins, J. W.; Ray, E.; Rosenlof, K.; Aquila, V.; Gao, R. S.;
Published Date:
2018
Source:
Journal of Geophysical Research-Atmospheres, 123(23), 13549-13559.
Description:
Sulfur dioxide (SO2) is one of the primary source gases for aerosols in the atmosphere. Even at low concentrations, its presence in the upper troposphere and lower stratosphere (UT/LS) provides an important source for aerosol nucleation and growth, a...
Fairall, C. W.; Matrosov, S. Y.; Williams, C. R.; Walsh, E. J.;
Published Date:
2018
Source:
Journal of Atmospheric and Oceanic Technology, 35(3), 593-608.
Description:
The NOAA W-band radar was deployed on a P-3 aircraft during a study of storm fronts off the U.S. West Coast in 2015 in the second CalWater (CalWater-2) field program. This paper presents an analysis of measured equivalent radar reflectivity factor Z(...
Coggon, M. M.; Veres, P. R.; Yuan, B.; Koss, A.; Warneke, C.; Gilman, J. B.; Lerner, B. M.; Peischl, J.; Aikin, K. C.; Stockwell, C. E.; Hatch, L. E.; Ryerson, T. B.; Roberts, J. M.; Yokelson, R. J.; de Gouw, J. A.;
Published Date:
2016
Source:
Geophysical Research Letters, 43(18), 9903-9912.
Description:
Volatile organic compounds (VOCs) emitted from residential wood and crop residue burning were measured in Colorado, U.S. When compared to the emissions from crop burning, residential wood burning exhibited markedly lower concentrations of acetonitril...
Sheng, J. X.; Jacob, D. J.; Turner, A. J.; Maasakkers, J. D.; Sulprizio, M. P.; Bloom, A. A.; Andrews, A. E.; Wunch, D.;
Published Date:
2018
Source:
Atmospheric Chemistry and Physics, 18(9), 6483-6491.
Description:
We use observations of boundary layer methane from the SEAC(4)RS aircraft campaign over the Southeast US in August-September 2013 to estimate methane emissions in that region through an inverse analysis with up to 0.25 degrees x 0.3125 degrees (25 x ...
Lamy, K.; Portafaix, T.; Brogniez, C.; Godin-Beekmann, S.; Bencherif, H.; Morel, B.; Pazmino, A.; Metzger, J. M.; Auriol, F.; Deroo, C.; Duflot, V.; Goloub, P.; Long, C. N.;
Published Date:
2018
Source:
Atmospheric Chemistry and Physics, 18(1), 227-246.
Description:
Surface ultraviolet radiation (SUR) is not an increasing concern after the implementation of the Montreal Protocol and the recovery of the ozone layer (Morgenstern et al., 2008). However, large uncertainties remain in the prediction of future changes...
Creamean, J. M.; Maahn, M.; de Boer, G.; McComiskey, A.; Sedlacek, A. J.; Feng, Y.;
Published Date:
2018
Source:
Atmospheric Chemistry and Physics, 18(2), 555-570.
Description:
The Arctic is warming at an alarming rate, yet the processes that contribute to the enhanced warming are not well understood. Arctic aerosols have been targeted in studies for decades due to their consequential impacts on the energy budget, both dire...
Dias, J.; Gehne, M.; Kiladis, G. N.; Sakaeda, N.; Bechtold, P.; Haiden, T.;
Published Date:
2018
Source:
Monthly Weather Review, 146(6), 1763-1784.
Description:
Despite decades of research on the role of moist convective processes in large-scale tropical dynamics, tropical forecast skill in operational models is still deficient when compared to the extratropics, even at short lead times. Here we compare trop...
Sea surface temperature anomalies (SSTA) in portions of the extratropics are known to recur from one winter to the next without persisting through the intervening summer. Previous studies identified only a limited number of midlatitude regions where ...
Koss, A. R.; Sekimoto, K.; Gilman, J. B.; Selimovic, V.; Coggon, M. M.; Zarzana, K. J.; Yuan, B.; Lerner, B. M.; Brown, S. S.; Jimenez, J. L.; Krechmer, J.; Roberts, J. M.; Warneke, C.; Yokelson, R. J.; de Gouw, J.;
Published Date:
2018
Source:
Atmospheric Chemistry and Physics, 18(5), 3299-3319.
Description:
Volatile and intermediate-volatility non-methane organic gases (NMOGs) released from biomass burning were measured during laboratory-simulated wildfires by protontransfer-reaction time-of-flight mass spectrometry (PTRToF). We identified NMOG contribu...
Nakamura, R.; Varsani, A.; Genestreti, K. J.; Le Contel, O.; Nakamura, T.; Baumjohann, W.; Nagai, T.; Artemyev, A.; Birn, J.; Sergeev, V. A.; Apatenkov, S.; Ergun, R. E.; Fuselier, S. A.; Gershman, D. J.; Giles, B. J.; Khotyaintsev, Y. V.; Lindqvist, P. A.; Magnes, W.; Mauk, B.; Petrukovich, A.; Russell, C. T.; Stawarz, J.; Strangeway, R. J.; Anderson, B.; Burch, J. L.; Bromund, K. R.; Cohen, I.; Fischer, D.; Jaynes, A.; Kepko, L.; Le, G.; Plaschke, F.; Reeves, G.; Singer, H. J.; Slavin, J. A.; Torbert, R. B.; Turner, D. L.;
Published Date:
2018
Source:
Journal of Geophysical Research-Space Physics, 123(2), 1260-1278.
Description:
We present characteristics of current layers in the off-equatorial near-Earth plasma sheet boundary observed with high time-resolution measurements from the Magnetospheric Multiscale mission during an intense substorm associated with multiple dipolar...
Su, L. P.; Patton, E. G.; de Arellano, J. V. G.; Guenther, A. B.; Kaser, L.; Yuan, B.; Xiong, F. L. Z.; Shepson, P. B.; Zhang, L.; Miller, D. O.; Brune, W. H.; Baumann, K.; Edgerton, E.; Weinheimer, A.; Misztal, P. K.; Park, J. H.; Goldstein, A. H.; Skog, K. M.; Keutsch, F. N.; Mak, J. E.;
Published Date:
2016
Source:
Atmospheric Chemistry and Physics, 16(12), 7725-7741.
Description:
The emission, dispersion, and photochemistry of isoprene (C5H8) and related chemical species in the convective boundary layer (CBL) during sunlit daytime were studied over a mixed forest in the southeastern United States by combining ground-based and...
Elvidge, E. L.; Bonisch, H.; Brenninkmeijer, C. A. M.; Engel, A.; Fraser, P. J.; Gallacher, E.; Langenfelds, R.; Muhle, J.; Oram, D. E.; Ray, E. A.; Ridley, A. R.; Rockmann, T.; Sturges, W. T.; Weiss, R. F.; Laube, J. C.;
Published Date:
2018
Source:
Atmospheric Chemistry and Physics, 18(5), 3369-3385.
Description:
In a changing climate, potential stratospheric circulation changes require long-term monitoring. Stratospheric trace gas measurements are often used as a proxy for stratospheric circulation changes via the "mean age of air" values derived from them. ...
We describe a two-channel broadband cavity enhanced absorption spectrometer (BBCEAS) for aircraft measurements of glyoxal (CHOCHO), methylglyoxal (CH3COCHO), nitrous acid (HONO), nitrogen dioxide (NO2), and water (H2O). The instrument spans 361-389 a...
Garfinkel, C. I.; Gordon, A.; Oman, L. D.; Li, F.; Davis, S.; Pawson, S.;
Published Date:
2018
Source:
Atmospheric Chemistry and Physics, 18(7), 4597-4615.
Description:
A series of simulations using the NASA Goddard Earth Observing System Chemistry-Climate Model are analyzed in order to aid in the interpretation of observed interannual and sub-decadal variability in the tropical lower stratosphere over the past 35 y...
Heiblum, R. H.; Altaratz, O.; Koren, I.; Feingold, G.; Kostinski, A. B.; Khain, A. P.; Ovchinnikov, M.; Fredj, E.; Dagan, G.; Pinto, L.; Yaish, R.; Chen, Q.;
Published Date:
2016
Source:
Journal of Geophysical Research-Atmospheres, 121(11), 6356-6373.
Description:
In Part I of this work a 3-D cloud tracking algorithm and phase space of center of gravity altitude versus cloud liquid water mass (CvM space) were introduced and described in detail. We showed how new physical insight can be gained by following clou...
Earth System Research Laboratory (U.S.), Global Systems Division,
Published Date:
2012
Series:
NOAA technical memorandum OAR GSD ; 55
Description:
"This survey was commissioned by the National Weather Service (NWS), U.S. Department of Commerce. Its purpose is to obtain a fairly comprehensive inventory of aviation weather products available at the middle of calendar year 2011. The survey will be...
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