Major Scientific Achievements

Table of Contents

A. In-flight Icing
    1. Background
    2. European Icing Climatology
    3. Icing Intensity Index
    4. Reported Versus "Real" Icing
    5. A freezing drizzle cloud in southeastern Alaska

B. Snowfall and Freezing Precipitation
    1. Background
    2. Freezing Drizzle Damage to 737 engines at DIA
    3. WSDDM system at Denver International Airport
    4. Addition of Freezing Drizzle Algorithm to Denver WSDDM
    5. Short-term Forecasting of Snow in the Northeast Corridor

C. Convective Weather Forecasting
    1. Background
    2. Field Deployments in FY 2003
    3. Variational Doppler Radar Analysis System (VDRAS)
    4. Forecast Demonstrations
    5. Quantitative Precipitation Nowcasting

D. Atmospheric Turbulence
    1. Background
    2. In-situ turbulence measurement algorithm
    3. Remote sensing of turbulence
    4. Turbulence forecasting
    5. Turbulence characterization
    6. Juneau Terrain-Induced Turbulence Project

E. Numerical Weather Prediction
    1. Background
    2. The Army Test and Evaluation Command project
    3. Metropolitan-area forecasting with the 4DWX modeling system
    4. Homeland-security applications

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F. Water Resources
    1. Background
    2. Surface hydrology for urban flash flood autonowcasting
    3. Water resource evaluation of rainfall enhancement - UAE and Oman
    4. Hydrologic aspects of land-atmosphere associated with CASES-97
    5. NAME Water Resources Research Project
    6. Distributed land surface modeling of large watersheds

G. Land-Surface/Atmospheric Interactions and Their Modeling
    1. Background
    2. IHOP/NCAR Soil Moisture, Soil Temperature, and Vegetation Observation Network
    3. Impact of Land-Atmospheric Interactions on Quantitative Precipitation Forecasts (QPF)
    4. Land Surface Model Development for Mesoscale Weather Models
    5. High Resolution Land Data Assimilation System Development
    6. Urban Heat Island Modeling

H. Remote Sensing
    1. Background
    2. Retrieval of DSD information
    3. Single antenna interferometry to measure wind
    4. Performance of Spaced Antenna (SA) Wind Estimators in Presence of Noise
    5. Remote Sensing of Liquid Water Content by Dual-wavelength Radar

I. Precipitation Enhancement
    1. Background
    2. Results from the UAE Feasibility Study on Rainfall Enhancement
    3. Development of the UAE Randomized Cloud Seeding Experiment

J. Ceiling and Visibility
    1. Background
    2. National Ceiling andVisibility System
    3. Visibility Nowcasts in Snowfall
    4. NE Winter Ceiling and Visibility Project
    5. NE Terminal Ceiling and Visibility
    6. San Francisco Airport Ceiling and Visibility

K. Oceanic Weather
    1. Background
    2. Progress Toward a Convective Nowcast Product
    3. Continuing Steps Toward an Integrated Oceanic Turbulence Product
    4. Initial steps toward volcanic ash products

L. Surface Transportation Weather
    1. Background
    2. Maintenance Decision Support System (MDSS)

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M. Statistics applications and forecast verification
    1. Background
    2. Statistical approach for forecasting in-flight icing
    3. Optimal observations for forecast verification
    4. An object-oriented approach for verifying spatial precipitation forecasts
    5. Verification of in-flight icing forecasts
    6. Methods for verifying oceanic weather forecasts

N. Technology Transfer Activities
    1. Background
    2. ADDS
    3. 4DWX

O. Contributions to NCAR Initiatives
    1. Background
    2. Water Cycle
    3. Wildfire
    4. Climate and Weather Assessments
    5. GIS

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