PACJET Projects |
HMT 2004
PACJET 2003
PACJET 2002
PACJET 2001
CALJET 1998
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Publications |
Snow Level Detection (pdf)
Orographic Precipitation (pdf)
ETL S-band Radar (pdf)
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Data |
GWINDEX
West Coast RUC
ETL Profiler Network
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Background |
About Pacjet
CALJET Summary
Societal Impacts and User Input
Linkages to National Priorities
USWRP
Data Assimilation Implementation Plan
NSSL Briefing
Press Release
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Programs Documents |
PACJET 2001 and a
Long-term Effort to Improve 0-24h West Coast Forecasts
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PACJET Community |
NOAA Research:
ETL,
NSSL,
FSL
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National Weather Service Western Region:
Eureka,
Hanford,
Medford,
Monterey,
Oxnard,
Portland,
Reno,
Sacramento,
San Diego,
Seattle,
CNRRC,
NWRFC
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Office of Marine and Aviation Operations:
AOC
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Naval Postgradute School
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DRI CIASTA
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CIRES
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SUNY Stony Brook
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National Centers for Environmental Prediction:
EMC,
HPC,
MPC
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National Environmental Satellite, Data
and Information Service
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CIMSS
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CIRA
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Operational Forecasting Components |
COMET Precipitation
Presentation
West Coast RUC
Aircraft Obs via AWIPS
GWINDEX Poster
Applications Development
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Research Components |
Modeling Research Components
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Related Experiments |
Winter Storm Reconnaissance (Central Pac.)
IMPROVE (Microphysics)
THORPEX (Synoptic Targeting)
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Observing Systems |
NOAA P-3
Wind Profiler Network
Satellite Products
NOAA S-band Radar
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Contact |
Marty Ralph
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Planning Workshops |
2001 - Monterey, CA
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PACJET will be closely coordinated with the WSR program. As illustrated,
the two experiments cover complementary regions of the data
sparse Pacific ocean, with WSR focused on the central Pacific and PACJET
on the coastal areas. Cooperative plans have been underway for some
time, and will at least consist of coordination on the timing and
location of flight operations. The goals of coordination will be either
to cover the same storm using a sequence of flights, or by focusing all
flights on a single time.
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WSR and PACJET Experimental Regions
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THORPEX is a major experiment being planned for the Pacific Ocean in
2003-2005. PACJET incorporates several components that will aid in
preparing for this large experiment by testing new measurement techniques
that could be of value in THORPEX. In this respect, PACJET helps
accelerate progress toward THORPEX, and increases the chances for its
success. The most relevant testing in PACJET includes:
- Development of buoy-mounted wind profiling. The first prototype was
tested in March 2000 for 5 days on a SCRIPPS buoy. Preliminary
assessment of the data indicates that the key method for suppressing sea
clutter was successful, and thus the investment will be made to harden
the system for protracted deployment, testing, and validation during
PACJET.
- Realistic field testing of a promising UAV, the AEOSONDE. The goal
is to conduct at least one successful flight from Hawaii to the west
coast in the context of a significant storm and with over-the-horizon
communication with the UAV. The capabilities of the AEROSONDE appear to
be well suited to PACJET's goal of measuring the low-level jet. (Fig.
from Greg Holland).
- Testing coordination of up to 4 aircraft in sampling a target
specified by the ensemble transform technique as part of a coordinated
effort with the Winter Storms Reconnaissance program.
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Although the IMPROVE and PACJET experiments each have several
objectives, they share a common goal of better understanding of
microphysical conditions associated with heavy orographic precipitation
on the west coast. Efforts are being made to coordinate the experiments
in a way that helps each better realize its primary goals. For example,
the IMPROVE project's field work in winter 2000/2001 was recently
shifted from November/December 2000 to January/February 2001, which now
overlaps the observing period for PACJET, and a profiler that will be
deployed along the coast for PACJET will be sited to optimize its value
for IMPROVE. Numerous other possibilities for coordination and synergy
will be fully explored.
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