The High Resolution Doppler Lidar (HRDL) is a system capable of measuring and mapping atmospheric velocities and backscatter with the high precision and sampling rate necessary for boundary layer studies important to understanding weather, climate and air quality. Research applications include:
Wavelength | 2.0218 µm (fully eye-safe) |
Pulse energy | 1.5 mJ |
Pulse rate | 200 Hz |
Frequency stability | 0.2 MHz |
Scan | Upper hemisphere |
Range Resolution | 30 m |
Time Resolution | 0.02 s (for 10 pulse average) |
Velocity Precision | 5 cm/s |
Minimum range | 0.2 km |
Maximum range | 2 - 9 km (typically 3 km) |
Laser | Tm:Lu,YAG diode-pumped, injection-seeded laser |
Platforms | ground, ship, aircraft |
Project Name | Date | Location | |
---|---|---|---|
XPIA 2015 | Experimental Measurement Campaign (XMC) for Planetary Boundary Layer (PBL) Instrument Assessment | March - June 2015 | Erie, Colorado (ground site) |
DJFlux 2014 | Denver-Julesburg Basin Flux Study | September - November 2014 | Erie, Colorado (ground site) |
FRAPPÉ 2014 | Front Range Air Pollution and Photochemistry Éxperiment | July - August 2014 | Erie, Colorado (ground site) |
LUMEX 2014 | Lidar Uncertainty Measurement EXperiment | June - July 2014 | Erie, Colorado (ground site) |
INFlux 2014 | Indiana Flux Study | May - June 2014 | Indianapolis, Indiana (ground site) |
TXFlux 2013 | Texas Flux Study | March - April, October 2013 | Texas (ground site) |
UBWOS 2013 | Uintah Basin Winter Ozone Study 2013 | January - February 2013 | Horsepool, Utah (ground site) |
Flux Study 2012 | Denver-Julesburg Basin CH4 Flux Study | April - May 2012 | Weld County, Colorado (ground site) |
UBWOS 2012 | Uintah Basin Winter Ozone Study 2012 | January - March 2012 | Horsepool, Utah (ground site) |
DYNAMO 2011 | Dynamics of the Madden-Julian Oscillation | September 2011 - January 2012 | Indian Ocean (R/V Revelle ship-based) |
Aircraft Plume Study | May 2001 | ||
TWICS 2011 | Turbine Wake and Inflow Characterization Study | April 2011 | Boulder, Colorado (ground site) |
VOCALS 2008 | VAMOS Ocean-Cloud-Atmosphere-Land Study | October - November 2008 | SE Pacific - Chile (R/V Ronald H. Brown ship based) |
TexAQS 2006 | Texas Air Quality Study 2006 | July - September 2006 | Houston, Texas / Gulf of Mexico (R/V Ronald H. Brown ship based) |
NEAQS 2004 | New England Air Quality Study 2004 | July - August 2004 | New England / Atlantic Coast (R/V Ronald H. Brown ship based) |
LLPJ | Lamar Low-Level Jet Program | September 2003 | Southeastern Colorado (ground site) |
IHOP | International H2O Project | May - June 2002 | Oklahoma (DLR Falcon, aircraft based) |
Bahamas | April - May 2000 | Bahamas | |
CASES | Cooperative Atmospheric Surface Exchange Study | October 1999 | Leon, Kansas |
Nauru 99 | June - July 1999 | Tropical Western Pacific | |
Vortex 99 | January 1999 | Huntsville, Alabama | |
LIFT | Lidars In Flat Terrain | August 1996 | Champaign/Urbana, Illinois |
MBLEX | Marine Boundary Layer Experiment | April - May 1995 | Pacific Ocean, off Monterey, California |
Grund, C.J., R.M. Banta, J.L. George, J.N. Howell, M.J. Post, R.A. Richter, A.M. Weickmann, High-Resolution Doppler Lidar for Boundary Layer and Cloud Research, Journal of Atmospheric & Oceanic Technology, 18(3), 376-393, 2001.
Wulfmeyer, V., A. Brewer, A. Weickmann, R. Richter, J. Vanandel, J. Howell, C. Grund, M. Hardesty, and P. Hildebrand, NCAR/NOAA high-resolution Doppler lidar for wind measurements and its potential for water-vapor differential absorption lidar, Book of Abstracts, Vol. 2, Fourth International Symposium on Tropospheric Profiling, 341-343, Snowmass, Colorado, September 1998.
Wulfmeyer, V., W.A. Brewer, C. Senff, S. Mayor, R. Marchbanks, J. Howell, A. Weickmann, R. Richter, C. Grund, and R.M. Hardesty, Performance and applications of the NOAA 2um High Resolution Doppler Lidar, 19th International Laser Radar Conference, NASA/CP--1998--207671/PT1, 573-576, Annapolis, Maryland, July 1998.
Grund, C.J., Coherent Doppler Lidar for Boundary Layer Wind Measurement Employing a Diode-pumped Tm:Lu,YAG Laser, Coherent Laser Radar, 19, 1995 OSA Technical Digest Series, 14-16, Optical Society of America, Washington, DC, 1995.