PECAN Science Workshop Presentations

Scientific Overview of PECAN Research Components

Observations of Low-Level Jets during PECAN — Richard D. Clark (Millersville University), Todd D. Sikora (FP3), Qing Wang, Belay Demoz (FP2), and Thomas Parish (UWYO K/A), Petra Klein (CLAMPS), and students.

Pristine nocturnal elevated convective initiation: A preliminary climatology and evaluation of predictability during PECAN — Sean A. Stelten and W. A. Gallus, Jr. (presented by Brian Squitieri, Iowa State University)

Simulated nocturnal convective systems from the PECAN field experiment – D. Parker (North Carolina State University), R. S. Schumacher, C. L. Ziegler, M. I. Biggerstaff, M. C. Coniglio, E. R. Mansell, and T. J. Schuur

Bores as a Dynamical Framework for Understanding and Predicting Nocturnal Convection – D. Parsons (University of Oklahoma), K. Haghi and B. Blake

Status of PECAN Data Sets I

PECAN Data Management Update: Scot Loehrer (NCAR/EOL), Linda Echo Hawk, and Linda Cully

EOL Datasets: S-Pol, WV DIAL, ISS: Tammy Weckwerth (NCAR/EOL) et al.

Airborne Compact Raman Lidar data collected during PECAN: Zhien Wang (U Wyoming), D. Wu and B. Geerts

LASE Measurements of Water Vapor and Aerosols During PECAN: Rich Ferrare (NASA Langley), A. Nehrir, S. Kooi, C. Butler, A. Notari, J. Collins, J. Hair, S. Spuler, Dave Turner, B. Demoz, R. Clark

 Status and processing of microphysical data collected during the 2015 PECAN project: Greg M McFarquhar (U Illinois), D. M. Stechman, Robert M. Rauber, Brian F. Jewett, Robert A. Black, David P. Jorgensen, Michael M. Bell, Terry J. Schuur

New Software Tools For Radar “Big Data” from PECAN: Michael M. Bell (Colorado State University), M. Dixon, W.-C. Lee

MCS Science 

Analyzing errors in MCS forecasts with PECAN sounding observations Russ Schumacher (Colorado State University), J. Peters, E. Nielsen, M. Parker, S. Hitchcock, M. Coniglio, and C. Ziegler

Kinematics and thermodynamics of the severe 5-6 July 2015 South Dakota MCS during PECAN: Conrad L. Ziegler (NOAA/NSSL), M. I. Biggerstaff, M. C. Coniglio, E. R. Mansell, M. D. Parker, R. S. Schumacher, T. J. Schuur, and R. L. Miller

Plains Elevated Convection At Night (PECAN):  Preliminary Multi-Platform Analyses of Severe Surface Wind Production in Nocturnal MCSs: Karen Kosiba and Josh Wurman, Center for Severe Weather Research, Boulder, CO

Microphysical and thermodynamic structure of two nocturnal elevated mesoscale convective systems sampled during the 2015 PECAN project: Daniel M. Stechman (U of Illinios), G. M. McFarquhar, R. M. Rauber, B. F. Jewett, R. A. Black, D. P. Jorgensen, M. M. Bell, T. J. Schuur

Design and implementation of a GSI-based convection-allowing ensemble data assimilation and forecast system for the PECAN field experiment. — Aaron Johnson, Xuguang Wang and Samuel Degelia, University of Oklahoma

LLJ Science

Nocturnal boundary-layer structure and evolution of the low-level jet during PECAN — Petra M. Klein (University of Oklahoma), E. N. Smith, D. D. Turner, and E. Fedorovich

Atmospheric Surface Layer Turbulence and Profiles Measurements from PECAN FP2 Site at Greensburg, Kansas: Qing Wang, R. Yamaguchi, R. J. Lind, M. K. Beall, G. R. Eberle (Naval Postgraduate School), John A. Kalogiros (National Observatory of Athens, Athens, Greece), Belay Demoz (University of Maryland, Baltimore County, Maryland) – presented by Mike Beall

A baroclinic nocturnal low-level jet over the Great Plains: Alan Shapiro, Joshua Gebauer, and Evgeni Fedorovich,  University of Oklahoma

Effects of shallow slope on the evolution of numerically simulated nocturnal low-level jets: Evgeni Fedorovich (University of Oklahoma), Jeremy Gibbs (OU/CIMMS and University of Utah) and Alan Shapiro (University of Oklahoma)

Status of PECAN data sets II

Summary and highlights of PECAN FP2 measurements: Belay Demoz (University of Maryland at Baltimore County), Kevin Vermeesch, David Whiteman, Brian Caroll, Lorenza Cooper, Monique Walker, Bruce Gentry, Huailin Chen, David Turner, Martin Cadirolla, Sium Tesfay, Amber Emory, Qing Wang, and Dial Hoang

Comparison of lidar water vapor measurements at Fixed PISA 2: Kevin Vermeesch (University of Maryland Baltimore County, Baltimore, MD), David Whiteman, Zhien Wang, Richard Ferrare, and Belay Demoz

Highlights of MIPS measurements during the PECAN field campaign: Kevin Knupp (University of Alabama in Huntsville)

Thermodynamic Profiling in the Boundary Layer from the AERIs at the PISA Sites: David Turner (NOAA)

A First Look at NASA X-Band Atmospheric Doppler Ground-based Radar (X-BADGER) Data from the PECAN FP2 Site in Greensburg, Kansas: Amber Emory (NASA Goddard), Stephen Nicholls, Michael Coon, Belay Demoz, and James Carwell

Drop-size distribution measurements in mesoscale convective systems during PECAN: David J. Bodine (University of Oklahoma), Kristen L. Rasmussen, Katja Friedrich, Karen Kosiba, Joshua Wurman, and Paul Kucera

Convective Initiation Science

Studies of convection initiation during PECAN using high-resolution EnKF data assimilation – Jim Marquis, University of Colorado-Boulder, Josh Wurman (CSWR), Glen Romine (NCAR), Tammy Weckwerth (NCAR), and Jim Wilson (NCAR)

The role of the nocturnal low-level jet in convection initiation over eastern Kansas on 2 June 2015: Joshua Gebauer, Alan Shapiro, Evgeni Fedorovich, and Petra Klein (University of Oklahoma)

Understanding and predicting nocturnal convection initiation using an ensemble-based multi-scale data assimilation system – Sam Degelia, Xuguang Wang (University of Oklahoma) and David Stensrud

Elevated convection initiation on 24 June 2015 during PECAN: A Case Study  Scott Kehler and John Hanesiak (Centre for Earth Observation Science, University of Manitoba)

Bore Science

Application of linear wave theory to observations of a bore on July 11th, 2015: Kevin Haghi (University of Oklahoma), David Parsons, Alan Shapiro and Steven

Evolution and vertical structure of an undular bore observed on 20 June 2015 during PECAN: Dana Mueller, Bart Geerts, Min Deng, and Zhien Wang, University of Wyoming

Influence of bores on nocturnal convective initiation during PECAN and the Canadian prairies: A case study analysis: Kyle Ziolkowski and John Hanesiak (University of Manitoba)

Insights from AERIs during the 2015 PECAN campaign: Timothy Wagner (University of Wisconsin), David Loveless, Jonathan Gero, Denny Hackel, David Turner, W. Gregory Blumberg, Kenneth Cook, Henry Downey, Wayne Feltz, Wagner et al.

Breakout Reports


LLJ Science

PECAN Data Sets

Convective Initiation Science

Bore Science


An Overview of the 20 June 2015 Convective Initiation Event during PECAN

Analysis of a Severe MCS and Nocturnal Tornadogenesis sampled by PECAN on 5-6 July 2015

Elevated Convection Initiation on 24 June 2015 during PECAN

Evaluating the use of RAP analyses for model validation as compared to PECAN observations for Great Plains LLJ events

Kinematics Thermodynamics and Microphysics of the 25-26 June 2015 Kansas MCS during PECAN