PRIDE Alaska Coastal Climatologies Wind/Wave Alaska Coastal Climatologies Wind/Wave Workshop Anchorage, Alaska August 2, 2005 Storm Track Capabilities at CPC: Storm Track Capabilities at CPC: Monitoring and Research Monitoring and Research Jon Gottschalck , Tim Eichler, Wayne Higgins, and Vern Kousky
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PRIDE Alaska Coastal Climatologies Wind/Wave Workshop Anchorage, Alaska
Storm Track Capabilities at CPC: Monitoring and Research. Jon Gottschalck , Tim Eichler, Wayne Higgins, and Vern Kousky. PRIDE Alaska Coastal Climatologies Wind/Wave Workshop Anchorage, Alaska. August 2, 2005. Outline. 1. Overview of Climate/Weather Monitoring 2. Storm Track Monitoring - PowerPoint PPT Presentation
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PRIDE Alaska Coastal Climatologies Wind/WaveAlaska Coastal Climatologies Wind/Wave WorkshopAnchorage, Alaska
August 2, 2005
Storm Track Capabilities at CPC:Storm Track Capabilities at CPC:Monitoring and ResearchMonitoring and Research
Jon Gottschalck, Tim Eichler, Wayne Higgins, and Vern Kousky
1. Overview of Climate/Weather Monitoring
2. Storm Track Monitoring
-- Algorithm, data, and other specifics
-- Storm track monitoring web page components and utility
3. Preliminary Research Work
-- Storm Track Climatology
-- Interannual Variability
-- ENSO composites
4. Upcoming Plans
OutlineOutline
A Broader View – Linking Climate and Weather at CPCA Broader View – Linking Climate and Weather at CPC-- Coordinated effort to monitor, assess and predict climate phenomena and their linkage to weather events
-- CPC monitoring web pages [ENSO, MJO, Teleconnection Indices (PNA, AO, NAO), blocking, storm tracks]
-- Most are highly relevant to Alaska weather (storms wind/wave events)
ENSO MJO AO Blocking Storm Tracks
CLIMATE WEATHER
PNANAO
Talk Focus
Storm Track MonitoringStorm Track Monitoring
Storm Tracking SpecificsStorm Tracking Specifics
Algorithm developed at CDC -- Serreze (1995) and Serreze et al. 1997
Identifies SLP minima with a threshold of 1 mb (adjustable)
Storms are tracked by analyzing the position of systems between time steps and applying a maximum distance threshold between candidate pairings (800 km)
Maximum distance moved north, south, or west restrictions applied
GDAS 6-hourly, 2.5° x 2.5° spatial resolution for realtime monitoring
Data is converted to an equal area projection for tracking purposes
Example Storm Track MapExample Storm Track Map
Storm Tracks from February 14, 2005 – March 15, 2005
Slow moving storms off California coast in early February