hmt-west end user perspective end user perspective ... hmt-west hmt-west legacy hmt-east ......
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HMT-West End User Perspective
Michael Anderson CA State Climatologist
Climate Prediction Applications Workshop March 2, 2010
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Talk Overview
• HMT West and California
• DWR Engagement
• Evaluation
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Leve
l of e
ffort
/ ac
tivity
Fi
eld
Wor
k A
naly
sis
American River
Key Eastern U.S. Watershed
Key Central U.S. Watershed
Fiscal Year
HMT-West
HMT-West Legacy
HMT-East
HMT-East Legacy
HMT-Central
Regions of Focus
NOAA Hydrology Program (Water Resources Data Assimilation)
NOAA Science and Technology Infusion Program (Hydrometeorology Testbed)
98 99 00 01 02 03 04 05 06 07 08 09 10 11 12 13
West Coast/Russian River
Caljet Pacjet
Proof of concept
HMT Prototype
Hydrometeorology Testbed Timeline
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Lake Tahoe
Folsom Lake
Sacramento
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Data Acquisition Computer Field Sites Used at sites where at least one of the instruments requires
a computer to acquire its data
• Types of instrumentation at these sites:
– radars, GPS-Met receivers, precipitation disdrometers, surface meteorology, precipitation gauges, soil moisture, snow depth
• Modes of communication at these sites:
– telephone/modem – satellite internet
Example: Big Bend (BBD)
precipitation gauge
trailer to house computer(s)
precipitation disdrometer GPS-Met receiver precipitation
gauge
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DWR Engagement
• Field Assistance
• Review Committee
• Future Investment
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Future Investment
• Cooperative Venture Between DWR, NOAA ESRL and Scripps Institute of Oceanography
• Snow Level Radar, Total Column Water Vapor, Soil Moisture Instrumentation
• Ensemble Modeling, Forecast Tool Development
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Evaluation
• Better QPF
• Longer Lead Time
• Incorporation into Operational Environment
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Sample Web product display for Big Bend
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Rain >10 mm/h: >12.5 m/s; >2 cm
Rainfall Intensity Derived From Thresholds of Forcing (upslope wind) and Fuel (water vapor)
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A Histogram of AR Strength
Conclusion: The Fall 2006 event in the Pac-NW was associated with a landfalling atmospheric river. This is similar to the Ralph et al. (2006, GRL) result for the Russian River floods from 1997-2006.
The event was tied for 2nd in terms of maximum IWV out of 118 events.
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Conclusions
• HMT-West has enabled opportunity for investment in equipment and decision support tools to aid emergency response in CA
• Further development needed to fully transition research ideas and outcomes into existing or planned operational environment