Search Results

You are looking at 1 - 10 of 21 items for :

  • Waves, oceanic x
  • Plains Elevated Convection At Night (PECAN) x
  • User-accessible content x
Clear All
Dana Mueller, Bart Geerts, Zhien Wang, Min Deng, and Coltin Grasmick

-lapse photography . J. Atmos. Oceanic Technol. , 27 , 1355 – 1361 , doi: 10.1175/2010JTECHA1472.1 . 10.1175/2010JTECHA1472.1 Crook , N. A. , 1986 : The effect of ambient stratification and moisture on the motion of atmospheric undular bores . J. Atmos. Sci. , 43 , 171 – 181 , doi: 10.1175/1520-0469(1986)043<0171:TEOASA>2.0.CO;2 . 10.1175/1520-0469(1986)043<0171:TEOASA>2.0.CO;2 Crook , N. A. , 1988 : Trapping of low-level internal gravity waves . J. Atmos. Sci. , 45 , 1533 – 1541 , doi: 10

Full access
Kevin R. Haghi, Bart Geerts, Hristo G. Chipilski, Aaron Johnson, Samuel Degelia, David Imy, David B. Parsons, Rebecca D. Adams-Selin, David D. Turner, and Xuguang Wang

radar tilt and ground clutter on wind measurements in clear air . J. Atmos. Oceanic Technol. , 22 , 649 – 663 , https://doi.org/10.1175/JTECH1737.1 . 10.1175/JTECH1737.1 Maslowe , S. A. , and L. G. Redekopp , 1980 : Long nonlinear waves in stratified shear flows . J. Fluid Mech. , 101 , 321 – 348 , https://doi.org/10.1017/S0022112080001681 . 10.1017/S0022112080001681 Miles , J. W. , 1980 : Solitary waves . Annu. Rev. Fluid Mech. , 12 , 11 – 43 , https://doi.org/10.1146/annurev

Open access
Shushi Zhang, David B. Parsons, and Yuan Wang

Doppler lidar . J. Atmos. Oceanic Technol. , 25 , 1267 – 1287 , https://doi.org/10.1175/2007JTECHA951.1 . 10.1175/2007JTECHA951.1 Lane , T. P. , and M. J. Reeder , 2001 : Convectively generated gravity waves and their effect on the cloud environment . J. Atmos. Sci. , 58 , 2427 – 2440 , https://doi.org/10.1175/1520-0469(2001)058<2427:CGGWAT>2.0.CO;2 . 10.1175/1520-0469(2001)058<2427:CGGWAT>2.0.CO;2 Lane , T. P. , and F. Zhang , 2011 : Coupling between gravity waves and tropical

Free access
David B. Parsons, Kevin R. Haghi, Kelton T. Halbert, Blake Elmer, and Junhong Wang

. Atmos. Oceanic Technol. , 25 , 1267 – 1287 , https://doi.org/10.1175/2007JTECHA951.1 . 10.1175/2007JTECHA951.1 Koch , S. E. , W. Feltz , F. Fabry , M. Pagowski , B. Geerts , K. M. Bedka , D. O. Miller , and J. W. Wilson , 2008b : Turbulent mixing processes in atmospheric bores and solitary waves deduced from profiling systems and numerical simulation . Mon. Wea. Rev. , 136 , 1373 – 1400 , https://doi.org/10.1175/2007MWR2252.1 . 10.1175/2007MWR2252.1 Lane , T. P. , and

Full access
J. W. Wilson, S. B. Trier, D. W. Reif, R. D. Roberts, and T. M. Weckwerth

advection. Other studies have discussed nocturnal initiation being associated with bores and gravity waves ( Pitchford and London 1962 ; Whiteman et al. 2006 ; Knupp 2006 ; Koch et al. 2008 ; Browning et al. 2010 ; Marsham et al. 2011 ) or warm advection and mesoscale convergence within the exit region of the low-level jet (e.g., Tuttle and Davis 2006 ; Stelten and Gallus 2017 ). Wilson and Roberts (2006) noted that midlevel convergence and conditional instability were major factors in

Full access
Coltin Grasmick, Bart Geerts, David D. Turner, Zhien Wang, and T. M. Weckwerth

solitary wave, finding that the wave passage reduced convective inhibition (CIN) and lowered the LFC, making CI more likely. However, other studies (e.g., Toms et al. 2017 ) have shown that propagating bores may lift parcels to their lifting condensation level (LCL) without producing CI. Thus, a better understanding of the mechanisms and conditions when these propagating wave structures trigger CI is needed. The present study analyzes nocturnal, elevated CI near an MCS outflow boundary during the

Full access
David M. Loveless, Timothy J. Wagner, David D. Turner, Steven A. Ackerman, and Wayne F. Feltz

. , 139 , 211 – 223 , https://doi.org/10.1175/2010MWR3376.1 . 10.1175/2010MWR3376.1 Coleman , T. A. , K. R. Knupp , and D. E. Herzmann , 2010 : An undular bore and gravity waves illustrated by dramatic time-lapse photography . J. Atmos. Oceanic Technol. , 27 , 1355 – 1361 , https://doi.org/10.1175/2010JTECHA1472.1 . 10.1175/2010JTECHA1472.1 Colman , B. R. , 1990 : Thunderstorms above frontal surfaces in environments without positive CAPE. Part I: A climatology . Mon. Wea. Rev

Full access
Manda B. Chasteen, Steven E. Koch, and David B. Parsons

absorption lidar, and a molecular Doppler lidar . J. Atmos. Oceanic Technol. , 25 , 1267 – 1287 , https://doi.org/10.1175/2007JTECHA951.1 . 10.1175/2007JTECHA951.1 Lindzen , R. , and K. Tung , 1976 : Banded convective activity and ducted gravity waves . Mon. Wea. Rev. , 104 , 1602 – 1617 , https://doi.org/10.1175/1520-0493(1976)104<1602:BCAADG>2.0.CO;2 . 10.1175/1520-0493(1976)104<1602:BCAADG>2.0.CO;2 Maddox , R. A. , 1980 : Meoscale convective complexes . Bull. Amer. Meteor. Soc. , 61

Full access
Bart Geerts, David Parsons, Conrad L. Ziegler, Tammy M. Weckwerth, Michael I. Biggerstaff, Richard D. Clark, Michael C. Coniglio, Belay B. Demoz, Richard A. Ferrare, William A. Gallus Jr., Kevin Haghi, John M. Hanesiak, Petra M. Klein, Kevin R. Knupp, Karen Kosiba, Greg M. McFarquhar, James A. Moore, Amin R. Nehrir, Matthew D. Parker, James O. Pinto, Robert M. Rauber, Russ S. Schumacher, David D. Turner, Qing Wang, Xuguang Wang, Zhien Wang, and Joshua Wurman

nocturnal environment that allows convection to become organized and propagate across the plains even as surface-based CAPE vanishes ( Heideman and Fritsch 1988 ; Tripoli and Cotton 1989a , b ). A multistep process is envisioned in which mesoscale convection over this region has its origin over the Rocky Mountains, which act as an elevated heat source. Convectively induced deep-tropospheric gravity waves emerge over the elevated terrain and propagate eastward, triggering nocturnal convective systems

Full access
Aaron Johnson, Xuguang Wang, Kevin R. Haghi, and David B. Parsons

. Rev. , 139 , 247 – 271 , https://doi.org/10.1175/2010MWR3422.1 . 10.1175/2010MWR3422.1 Martin , W. J. , and A. Shapiro , 2007 : Discrimination of bird and insect radar echoes in clear air using high-resolution radars . J. Atmos. Oceanic Technol. , 24 , 1215 – 1230 , https://doi.org/10.1175/JTECH2038.1 . 10.1175/JTECH2038.1 Maxworthy , T. , 1980 : On the formation of nonlinear internal waves from the gravitational collapse of mixed regions in two and three dimensions . J. Fluid

Full access