Search Results

You are looking at 1 - 10 of 11 items for :

  • Plains Elevated Convection At Night (PECAN) x
  • All content x
Clear All
Yun Lin, Jiwen Fan, Jong-Hoon Jeong, Yuwei Zhang, Cameron R. Homeyer, and Jingyu Wang

in ice-related processes, which is induced by freezing of a larger amount of cloud water as a result of warm rain suppression (so-called cold-phase invigoration; e.g., Khain et al. 2005 ; Rosenfeld et al. 2008 ), and (ii) enhanced condensation latent heating due to much larger drop surface area resulting from the formation of a larger number of small droplets (so-called warm-phase invigoration; e.g., Fan et al. 2007 , 2018 ; Sheffield et al. 2015 ; Lebo 2018 ). Recently, there have been a

Restricted access
J. C. Hubbert

. There are several other techniques that have been used for the calibration of . An engineering calibration method characterizes the gain of different signal paths of the radar with power meter measurements and solar power measurements ( Zrnić et al. 2006 ; Hubbert et al. 2008b ). However, this technique has proven to have unacceptable uncertainty for S-Pol, and for the Next Generation Weather Radar (NEXRAD) polarimetric Weather Surveillance Radar-1988 Doppler (WSR-88DP) radars ( Ice et al. 2014

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

extraordinary atmospheric undular bore . Quart. J. Roy. Meteor. Soc. , 108 , 937 – 956 , https://doi.org/10.1002/qj.49710845813 . 10.1002/qj.49710845813 Sukoriansky , S. , B. Galperin , and V. Perov , 2005 : Application of a new spectral theory of stably stratified turbulence to atmospheric boundary layer over sea ice . Bound.-Layer Meteor. , 117 , 231 – 257 , https://doi.org/10.1007/s10546-004-6848-4 . 10.1007/s10546-004-6848-4 Surcel , M. , M. Berenguer , and I. Zawadzki , 2010

Full access
David J. Bodine and Kristen L. Rasmussen

) in solid (dashed) black contours; (c) NCEP–NCAR reanalysis mean sea level pressure (hPa; solid black contours) and precipitable water (shaded contours); and (d) TRMM 3B42 total precipitation (mm) from 1200 UTC 5 Jul to 1200 UTC 6 Jul 2015. NCEP–NCAR reanalysis data are plotted at 0000 UTC 6 Jul 2015, and the location of the KFSD WSR-88D is shown by the blue star. The study focuses on the mature stage of the MCS. For interested readers, an animation of KFSD base elevation Z is provided to show

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

kt; 1 kt = 0.5144 m s −1 ), and sea level pressure (contours; hPa), (b) 300-hPa absolute vorticity ( , shaded; ×10 −5 s −1 ), wind barbs (kt), and geopotential height (contours; dam), (c) 850-hPa potential temperature (shaded; K), geopotential height (contours; dam), and wind barbs (kt), and (d) 925-hPa Petterssen horizontal frontogenesis function [shaded; K (100 km × 3 h) −1 ], geopotential height (contours; dam), and wind vectors (m s −1 ) using the RAP analysis valid at 0300 UTC 6 Oct 2014. A

Full access
Sean Stelten and William A. Gallus Jr.

, 1593 – 1606 , doi: 10.1175/JAM2294.1 . 10.1175/JAM2294.1 Sukoriansky , S. , B. Galperin , and V. Perov , 2005 : Application of a new spectral theory of stably stratified turbulence to the atmospheric boundary layer over sea ice . Bound.-Layer Meteor. , 117 , 231 – 257 , doi: 10.1007/s10546-004-6848-4 . 10.1007/s10546-004-6848-4 Szoke , E. J. , J. Brown , and B. Shaw , 2004 : Examination of the performance of several mesoscale models for convective forecasting during IHOP. 20th Conf. on

Full access
Jonathan E. Thielen and William A. Gallus Jr.

( Bryan and Morrison 2012 ; Cintineo et al. 2014 ; Clark et al. 2014 ; Grasso et al. 2014 ). For instance, in a study of a German squall line, even though all microphysical schemes tested were found to overpredict reflectivity intensity but underpredict areal coverage of lower values, especially in the stratiform rain regions, the degrees differed ( Gallus and Pfeifer 2008 ). Also, ice microphysics are well known to exert a substantial influence on the simulated stratiform regions (e.g., Fovell

Full access
Aaron Johnson and Xuguang Wang

.1175/1520-0493(2000)128<2077:UICAMP>2.0.CO;2 Sukoriansky , S. , B. Galperin , and V. Perov , 2005 : Application of a new spectral theory of stably stratified turbulence to atmospheric boundary layers over sea ice . Bound.-Layer Meteor. , 117 , 231 – 257 , doi: 10.1007/s10546-004-6848-4 . 10.1007/s10546-004-6848-4 Tao , W.-K. , and Coauthors , 2003 : Microphysics, radiation, and surface processes in the Goddard Cumulus Ensemble (GCE) model . Meteor. Atmos. Phys. , 82 , 97 – 137 , doi: 10.1007/s00703-001-0594-7 . 10

Full access
Aaron Johnson, Xuguang Wang, and Samuel Degelia

. Rev. , 132 , 3019 – 3032 , doi: 10.1175/MWR2830.1 . 10.1175/MWR2830.1 Snyder , C. , and F. Zhang , 2003 : Assimilation of simulated Doppler radar observations with an ensemble Kalman filter . Mon. Wea. Rev. , 131 , 1663 – 1677 , doi: 10.1175//2555.1 . 10.1175//2555.1 Sukoriansky , S. , B. Galperin , and V. Perov , 2005 : Application of a new spectral theory of stably stratified turbulence to atmospheric boundary layers over sea ice . Bound.-Layer Meteor. , 117 , 231 – 257 , doi

Full access
Matthew D. Flournoy and Michael C. Coniglio

0000 UTC 6 Jul 2015 (from the Storm Prediction Center archive). Fig . 3. As in Fig. 2 , but for 2-m temperature (red and magenta contours every 5°F), 2-m dewpoint temperature (blue dashed contours shaded every 4°F), and pressure reduced to mean sea level (black contours every 4 hPa). Fig . 4. Skew T –log p diagram and 0–6-km hodograph (kt in upper left) from a radiosonde launched at 0325 UTC 6 Jul 2015 at the location of the star in Fig. 5 . The dashed red line is the virtual temperature, and

Full access