Naval Research Laboratory,
Marine Meteorology Division (Code 7500)
Terrain-Induced Rotor Experiment (T-REX)
Welcome to the NRL-Monterey T-REX Project Page
T-REX Background
The Terrain-induced Rotor Experiment (T-REX) is the second phase of a coordinated effort to explore the structure and evolution of atmospheric rotors (intense low-level horizontal vorticies that form along an axis parallel to, and downstream of, a mountain ridge crest) as well as associated phenomena in complex terrain. The initial, exploratory, phase of this effort, the Sierra Rotors Project, completed its Special Observation Period (SOP) in early spring 2004 in Owens Valley, California. Experience gained and data collected in the Phase I SOP have been instrumental in formulating both the scientific objectives and experimental design of T-REX.
The main scientific objective of T-REX is a comprehensive study of the coupled mountain-wave, rotor, and boundary-layer system. Some complimentary scientific issues include stratospheric-tropospheric exchange and structure and evolution of the complex terrain boundary layer in the absence of rotors. The comprehensive T-REX data sets will also represent a unique test bed for the validation of numerical models, and are expected to be instrumental in achieving further significant improvements in mesoscale and microscale modeling and in the prediction of aviation hazards, downslope windstorms, and aerosol transport and dispersion.
The observational thrusts are two-fold: 1) comprehensive ground-based and airborne, in situ and remote sensing measurements during strongly perturbed conditions favoring rotor formation, and 2) comprehensive observations of complex terrain boundary layer structure and evolution from undisturbed to strongly perturbed. Constructive comments are appreciated.
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Science Contact
T-REX Real-Time COAMPS Forecasts (6 km and 2 km Resolution)
T-REX COAMPS Forecasts
Real-Time T-REX Linear Model Forecasts
Background
Limitations and Caveats
T-REX Sierra Nevada, CA
Northern Sierra Nevada, CA
Colorado Rockies Front Range
Andes
Archive
Archive of Recent Linear Forecasts
Observation Links
T-REX Observations: T-REX Catalog
T-REX Page (NCAR)
MAPR
Surface Network (DRI)
SRP Observations: SRP Page (NCAR)
MAPR
MISS
MGLASS
Soundings
Surface Network (DRI)
Satellite Images: NRL: Sierra
MRY
N. Calif.
Sat. Page
NWS: Sierra
UW: Sierra
NCAR: GOES
Modis: Vis
Vapor
Turbulence Observations: PIREPS (West)
PIREPS (U.S.)
PIREPS Java Tool
FSL
Surface Observations: NCAR
U. Wyoming
BIH
Oak Crk
Rock Crk
Owens Val
MRY
Hanford
Profilers: CA Wind Profilers
San Joaquin Valley
Visalia: low
high
Piedras Blancas: low
high
Fort Ord: low
high
NWS Sites: Monterey, CA
Hanford, CA
Reno, NV
Las Vegas, NV
Denver, CO
NWS Radars: U.S.
Monterey, CA
Reno, NV
Hanford, CA
Edwards AFB, CA
Las Vegas, NV
Soundings: Reno, NV
OAK
VBG
EDW
DRA
GJT
DNR
NCAR
Upper Air Analyses: 850 mb
700 mb
500 mb
300 mb
250 mb
200 mb
Forecast Links
Numerical Weather Prediction Forecasts
Navy Products: NOGAPS/COAMPS
COAMPS T-REX Forecasts
Predictability Products: NOGAPS Singular Vectors
NCEP Products: Goldengate
NCAR
NCEP
ECWMF Products: DLR
Wave and Turbulence Forecasts
NOAA Integrated Turbulence Forecast Algorithm (IFTA): 00 hr
03 hr
06 hr
09 hr
12 hr
Soaring Forecast (Reno, NV)
Linear Mountain Wave Interpretation Page for Glider Pilots
NOAA Turbulence Page (ADDS)
Sierra Rotors Project (Spring 2004) COAMPS Archive
Sierra Rotors Project (SRP) Archive
Recent Publications
Disclaimer
POC:Science Contact
Privacy Policy
Last updated: 28-Jul-2004
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