Experiments

2016


Deep Hail
Objectives investigate hail production in thunderstorms in particular thunderstorms that produce large hail accumulations on the ground. Since hail depth is not part of the severe weather reports, CU Boulder and the National Weather Service condiciting is experiment in which the general public is asked to report hail depth of thunderstorms.
Location/Duration

Colorado April-September 2016

  WFIP - DOE-NOAA-Private Sector Wind Forecast Improvement Project
Objectives WFIP is a DOE sponsored research project that aims to improve the skill
of NOAA's short-term weather forecast models at predicting foundational
weather parameters (for example, wind speed, turbulence intensity, and
icing conditions) that impact wind energy generation.
Location/Duration

Columbia River Gauge, OR; September 2015 - March 2017

 

2015


XPIA - A2e eXperimental Measurements Committee's Planetary Boundary Layer Instrument Assessment
Objectives conducted between March and April 2015 at the Boulder Atmospheric Observatory in collaboration with the educational outreach project Characterizing the Atmospheric Boundary Layer (CABL).
Location/Duration

Boulder Atmospheric Observatory March-May 2015

SCOOP - Study of Convective and Orographic Precipitation
Objectives Focuses on investigating the multi-scale interactions existing between kinematic and microphysical processes during orographic
precipitation events.
Location/Duration

Colorado Front Range, CO; 1 April - 31 Dec 2012

 

2012


ASCII - AgI Seeding Cloud Impact Investigation (CU site)
Objectives The goal of this activity is to study fundamental orographic precipitation processes and to investigate how glaciogenic seeding affects the size distributions and concentrations of supercooled water and ice particles in orographic clouds.
Location/Duration

Sierra Madre, WY;  4 January - 15 March 2012

SCOOP - Study of Convective and Orographic Precipitation
Objectives Focuses on investigating the multi-scale interactions existing between kinematic and microphysical processes during orographic
precipitation events.
Location/Duration

Colorado Front Range, CO; 1 April - 31 Dec 2012

 

2011


TOM - Teaching flow Over Mountains
Objectives The goal of this activity is to enhance undergraduate and graduate student learning in the atmospheric sciences by providing hands-on instrument experience, data analysis, and a practical application of scan strategy design to undergraduate students.
Location/Duration

Boulder, CO;  1 March - 15 April 2011


SCOOP - Study of Convective and Orographic Precipitation
Objectives Focuses on investigating the multi-scale interactions existing between kinematic and microphysical processes during orographic precipitation events.
Location/Duration

Colorado Front Range, CO; 1 Jan - 30 Nov 2011


 NREL - Comparing remote sensing and in-situ tower observations
Objectives We compared remote sensing devices, Windcube lidar and microwave radiometer, to meteorological in-situ tower measurements to demonstrate the accuracy of these measurements and to assess the utility of the remote sensing instruments in overcoming tower limitations.
Location/Duration

U.S. Department of Energy National Renewable Energy Laboratory’s National Wind Technology Center near Boulder, CO, 15 May - 31 October 2011

 

2010


The 2010 Durango Radar Experiment
Objectives Demonstrate the gap-filling potential of a small Doppler radar within the coverage area of the national Weather Service WSR-88D radar at Grand Junction, CO and examine the terrain-induced circulations favorable for storm formation and motion.
Location/Duration

Durango, CO;  1 August - 31 August  2010


Boulder Snow Experiment
Objectives Intercomparing reflectivity and rainfall rate measurements of MRRs and disdrometers                                                                                                    
Location/Duration

Boulder, CO; 1 Mar - 31 May 2010


ISPA 2010 - Inhibition of Snowfall by Pollution Aerosols
Objectives Studies the link between pollution aerosols and snowfall rates in the Mount Werner area near Steamboat Springs, Colorado                                               
Location/Duration

Steamboat Springs, CO; 14 Jan - 28 Feb 2010

 VORTEX2 - Verification of the Origins of Rotation in Tornadoes Experiment
Objectives Multi-agency field program to investigate (i) tornadogenesis, maintenance, and demise, (ii) tornado near-ground wind field, (iii) relationships among tornadoes, their parent thunderstorms, and the larger-scale environment, and (iv) numerical weather prediction of supercells and tornadoes.
Location/Duration

U.S. Great Plains;  1 May - 15 June 2010

2009


 VORTEX2 - Verification of the Origins of Rotation in Tornadoes Experiment
Objectives Multi-agency field program to investigate (i) tornadogenesis, maintenance, and demise, (ii) tornado near-ground wind field, (iii) relationships among tornadoes, their parent thunderstorms, and the larger-scale environment, and (iv) numerical weather prediction of supercells and tornadoes.
Location/Duration

U.S. Great Plains; 10 May - 13 June 2009


 The 2009 Gunnison Radar project
Objectives Demonstrate the gap-filling potential of a small Doppler radar within the coverage area of the national Weather Service WSR-88D radar at Grand Junction, CO and examine the terrain-induced circulations favorable for storm formation and motion.
Location/Duration

Gunnison, CO; 15 July - 31 August 2009

2008


 ROTATE 2008 - Radar Observations of Torndoes and Thunderstorm Experiment
Objectives Major goals are to collect observations that will enable the evaluation of tornadogenesis hypotheses and to continue studies of tornado vortex structure and climatology.
Location/Duration

U.S. Great Plains; 1 May - 31 May 2008


 Hurricane Ike
Objectives Understanding the impact of boundary-layer, thermodynamic, and microphyscal proceses on the structure, evolution, and intensity of storms remains one of the greatest challenges for forecasting rapid intensification of hurricanes.
Location/Duration

Galveston, TX; 18 September 2008

Older Projects:

Radar de Franche-Comte, INTERREG IIIa: Analyzing the added benefit of polarimetric measurements for rainfall rate estimation and forecast in the Alps, focusing on the influence of terrain and multiple water phases on the measurement accuracy of polarimetric quantities; international project between MeteoSwiss and the French weather service, Meteo France, (2005-2007).

Modernization of the Swiss national weather radar network: How to modernize the national weather radar network to better address users' needs, and conduct scientific requirements with the focus on utility ad feasibility of polarimetry for operational applications? (2005-2007).

International H2O project (IHOP 2000): Investigating kinematic and microphysical structures of a cold front and analyze the role of those structures relevant for convection initiation (2004-2005).

Convection and Precipitation/Electrification project (CaPE 1991): Conducting a statistical analysis of strength and frequency of misocyclones observed along thunderstorm outflows and the role of misocyclones on convection initiation (2004-2005).

Vertical Exchange and orography in the Alpine foreland (VERTIKATOR 2000): Using polarimetic Doppler radar together with three bistatic receivers to investigate the influence of orography on the onset of convection and downburst-producing thunderstorms using polarimetric radar data and wind-vector fields (2001-2004).

Frankfurt/Main International Airport (FRAPORT): Development of a concept of using weather-radar data (wind vector fields and radar reflectivity) for air-traffic management at Frankfurt/Main International Airport; project was commissioned by th Ministry of Transportation (2002-2003).

European COST, Action 717: Developing and testing concepts for an automated determination of radar-data quality for radar reflectivity, polarimetric parameters, and Doppler velocity for assimilation in numerical weather prediction models (2002-2004).

WakeVortex: Measurement and post-processing wind-vector fields to be assimilated into a numerical weather prediction model (2000-2004).

Atmospheric Dynamic Mission (ADM): Quality control algorithm for Doppler lidar measurements which should come into operation during the Atmospheric Dynamic Mission starting in 2007 (2002-2004).

Tropospheric Research Program (TSF): Investigation the influence of land-use heterogeneity on water and energy budgets (1993-1999).