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Tuesday

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Tuesday, 27 June 2023
Opening
08:30 to 09:15 Arrival and registration
09:15 to 09:30 Opening remarks
Video recording
Florian Pappenberger (ECMWF)
Session 1: AR Recon in Water Year 2023 - Part I

Moderator: David Lavers (ECMWF)

09:30 to 10:00 AR Recon Motivation and Achievements
Presentation slides
Video recording
Marty Ralph (CW3E)
10:00 to 10:20 US Air Force Reserve Command Perspective on AR Recon: Past, Present, and Future
Presentation slides
Video recording
Ryan Rickert (53 WRS Hurricane Hunters)
10:20 to 10:40 AR Recon 2023 Airborne Radio Occultation (ARO) Observations in Zonal ARs and Cutoff Lows
Presentation slides
Video recording
Jennifer Haase (Scripps Institution of Oceanography, UCSD)
10:40 to 11:10 Group photo and coffee break
11:10 to 11:25 Mesoscale Analysis of Landfalling Atmospheric Rivers in California during December 2022 and January 2023
Presentation slides
Video recording
Brian Kawzenuk (Center for Western Weather and Water Extremes)
11:25 to 11:45 Impacts of Long-Duration Weather Balloon Observations on North American Forecasts
Presentation slides
Video recording
Todd Hutchinson (WindBorne Systems)
11:45 to 12:00 Overview of US West Coast Observations: Radiosondes and Ground-Based Hydrometeorological Networks
Presentation slides
Video recording
Anna Wilson (Scripps Institution of Oceanography, UCSD)
12:00 to 12:30 Discussion
Video recording
12:30 to 14:00 Lunch break
Session 2: AR Recon in Water Year 2023 - Part II

Moderator: Anna Wilson (Center for Western Weather and Water Extremes)

14:00 to 14:15 NOAA G-IV Status Review
Presentation slides
Video recording
Richard Henning (NOAA Aircraft Operations Center)
14:15 to 14:30 Diagnosing Forecast Sensitivity of Atmospheric Rivers Using an Adjoint
Presentation slides
Video recording
James Doyle (Naval Research Laboratory)
14:30 to 15:00 Application of Ensemble Sensitivity during the 2022/2023 AR-Recon Season
Presentation slides
Video recording
Ryan Torn (University at Albany, SUNY)
15:00 to 15:30 Importance of AR Recon Observations to Water Management
Presentation slides
Video recording
Cary Talbot (US Army Corps of Engineers)
15:30 to 16:00 Discussion
Video recording
16:00 to 16:30 Break
Session 3: Poster session
Location: Weather Room
16:30 to 18:30 Reception and poster session

Wednesday

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Wednesday, 28 June 2023
Welcome

09:20 to 09:30 Welcome to day 2
Marty Ralph (CW3E)
Session 4: Modeling, DA and Impact Studies - Part I

Moderator: Jon Rutz (Center for Western Weather and Water Extremes)

09:30 to 10:00 NOAA Aircraft AR support: now and future
Presentation slides
Video recording
Nancy Hann (NOAA)
10:00 to 10:30 Unifying Targeted Aircraft Reconnaissance Observations for Improving Atmospheric River and Winter Storm Forecasts
Presentation slides
Video recording
Vijay Tallapragada (NOAA/NWS/NCEP/EMC)
10:30 to 10:50 Impact of Dropsonde Data on NCEP Operational GFS Forecasts from 2022-2023 Atmospheric River Reconnaissance
Presentation slides
Video recording
Xingren Wu (Axiom at EMC/NCEP/NOAA)
10:50 to 11:05 Coffee break
11:05 to 11:25 Atmospheric River Analysis and Forecast System (AR-AFS): Atmospheric River Reconnaissance 2023 Dropsonde Data Impact Study
Presentation slides
Video recording
Keqin Wu (Lynker at ECM/NCEP/NOAA)
11:25 to 11:45 Sub-Seasonal Prediction skill of GEFSv12 for Atmospheric Rivers and Associated Precipitation Forecasts over the U.S. West Coast
Presentation slides
Video recording
Murali Nageswara Rao Malasala (NOAA)
11:45 to 12:15 Improving Sampling Strategies for Atmospheric River Reconnaissance
Presentation slides
Video recording
Luca Delle Monache (CW3E/SIO/UCSD)
12:15 to 12:30 A Review of AR RECON Modeling, DA and Impact Studies at the U. S. Naval Research Laboratory
Presentation slides
Video recording
Carolyn Reynolds (Naval Research Laboratory)
James Doyle (Naval Research Laboratory)
12:30 to 13:30 Lunch break
Session 5: Modeling, DA and Impact Studies - Part II

Moderator: Xingren Wu (NOAA/National Centers for Environmental Prediction/Environmental Modeling Center)

13:30 to 14:00 The Utility of a Two-dimensional Forward Model for Bending Angle Observations in Regions with Strong Horizontal Gradients
Michael Murphy (GMAO, NASA Goddard Space Flight Center)
14:00 to 14:20 Observing System Experiments for the 2023 AR Recon Season
Presentation slides
Video recording
David Lavers (ECMWF)
14:20 to 14:30 Special presentation
Video recording
14:30 to 15:00 ARO at ECMWF: current activities and future plans
Presentation slides
Video recording
Sean Healy (ECMWF)
15:00 to 15:45 ECMWF 48r1 celebration
15:45 to 16:30 The World Weather Research Programme: Activities and Plans Relevant to AR Recon
Presentation slides
Video recording
Chris Davis (National Center for Atmospheric Research)
16:30 to 17:00 Ocean surface and subsurface measurements for AR Recon and subseasonal AR predictability
Presentation slides
Video recording
Timothy Higgins (University of Colorado Boulder)
Aneesh Subramanian (University of Colorado Boulder)
Workshop dinner
19:00 to 22:00 Bel and the Dragon, Reading town centre

Thursday

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Thursday, 29 June 2023
Welcome
10:00 to 10:05 Welcome to day 3
Vijay Tallapragada (NOAA/NWS/NCEP/EMC)
Session 6: Scientific Advances in Physical Process Understanding

Moderator: Sam Bartlett (Center for Western Weather and Water Extremes)

10:05 to 10:35 Precipitation efficiencies in a climatology of extratropical cyclones
Presentation slides
Video recording
Helen Dacre (University of Reading)
10:35 to 11:05 The effects of diabatic heating in WCBs on jet stream perturbations and predictability
Presentation slides
Video recording
John Methven (University of Reading)
11:05 to 11:35 The North Atlantic Waveguide, Dry Intrusion, and Downstream Impact Campaign (NAWDIC)
Presentation slides
Video recording
Christian Grams (IMK-TRO, Karlsruhe Institute of Technology)
11:35 to 12:00 Aircraft dropsonde observation of atmospheric rivers associated with tropical cyclones in the western North Pacific
Presentation slides
Video recording
Kazuhisa Tsuboki (Nagoya University)
12:00 to 12:30 Discussion
12:30 to 14:00 Lunch break
Session 7: The Future of AR Recon

Moderator: David Lavers (ECMWF)

14:00 to 15:45 Panel discussion on new directions and closing remarks

  • Marty Ralph, Center for Western Weather and Water Extremes
  • Vijay Tallapragada NOAA/National Centers for Environmental Prediction/Environmental Modeling Center
  • Florian Pappenberger, European Centre for Medium-Range Weather Forecasts


Video recording

NAWDIC Workshop 2023

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NAWDIC Workshop 2023, 30 June 2023
NAWDIC Workshop 2023
Moderator: David Lavers (ECMWF)
09:00 to 09:20 NAWDIC-HALO and NAWDIC-KITcube: Seamless observation strategy from synoptic- to micro-scale
Presentation slides
Video recording
Christian Grams (IMK-TRO, Karlsruhe Institute of Technology)
09:20 to 09:40 AR Recon and potential collaborations with NAWDIC
Presentation slides
Video recording
Marty Ralph (CW3E)
09:40 to 10:00 CAPRI - The UK contribution to NAWDIC
Presentation slides
Video recording
John Methven (University of Reading)
10:00 to 10:10 French contribution to ground-and airborne measurements of the lower troposphere during NAWDIC
Presentation slides
Video recording
Julian Quinting (Karlsruhe Institute of Technology)
10:10 to 10:30 U.S. plans for contributions to NAWDIC
Presentation slides
Video recording
Steven Cavallo (University of Oklahoma)
10:30 to 10:50 Hydrological Perspective
Presentation slides
Video recording
Andrew Wade (University of Reading)
10:50 to 11:20 Coffee break
11:20 to 12:30 Breakout Groups (Assigned)

  • Group 1: Atmospheric Rivers
    Moderator: Julian Quinting, Rapporteur: Jim Doyle
  • Group 2: Dry Intrusions
    Moderator: Christian Grams, Rapporteur: Anna Wilson

12:30 to 14:00 Lunch break
14:00 to 15:20 Case Study
15:20 to 15:45 Breakout Groups Report Out and Closing Discussion

Christian Grams (IMK-TRO, Karlsruhe Institute of Technology)