WMOD00268

• Applicant: CWCB
• Sponsor Name: USBR
• Project Name: Final Report Weather Damage Mitigation Program
• Title: Numerical Simulations of Snowpack Augmentation for Drought Mitigation Studies in the Colorado Rocky Mountains
• Prepared For: USBR - WDMP
• Prepared By: Curt Hartzell, Dr. William Cotton, Joe Busto
• Date: 9/1/2005
• State: CO
• Weather Modification - Doc Type: Scientific Study

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MSL: Mean Sea Level

MST: Mountain Standard Time

NAM (formerly Eta) model: North American Meso operational model from
NOAA's National Centers for Environmental Prediction (NCEP).

NAS: National Academy of Sciences

NCEP: National Centers for Environmental Prediction

NOAA: National Oceanic and Atmospheric Administration

NRCS: Natural Resources Conservation Service

Nucleation: The initiation of a phase change of a substance to a lower
thermodynamic energy state (i.e., vapor to liquid condensation, vapor to solid
deposition, or liquid to solid freezing).

Nuclei: A particle of any nature upon which, or the location at which, molecules
of water or ice accumulate as a result of a phase change to a more condensed
state; an agent of nucleation.

NWS: National Weather Service

Orographic cloud: A cloud whose form and extent is determined by the
distributing effects of orography (i.e., mountains), which causes lifting and
condensation in the passing flow of air. Because these clouds are linked to the
terrestrial relief, their location changes very slowly, if at all.

Overseeding: Condition in a cloud where an excess of nuclei are available,
thereby creating a competition for the available cloud droplets or water vapor,
possibly preventing any of them from growing to the appropriate size necessary
to reach the ground.

PC:PeffionaICompu~r

PI: Principal Investigator

RAMS: Regional Atmospheric Modeling System

Rawinsonde: A method of upper-air observation consisting of an evaluation of
the wind speed and direction, temperature, pressure, and relative humidity aloft
by means of a balloon-borne radiosonde tracked by a radio direction-finder.

Reclamation: United States Department of the Interior, Bureau of Reclamation

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