development of doppler lidar systems outline history recent nasa wind lidar development
DESCRIPTION
Global Wind Measurements from Earth Orbit – Atmospheric Motion Vectors and Development of Doppler Lidar Systems Presented to CGMS-41 Working Group II, WGII/6 Dong L. Wu 1 , Michael J. Kavaya 2 1 NASA Goddard Space Flight Center 2 NASA Langley Research Center. Overview. - PowerPoint PPT PresentationTRANSCRIPT
NASA, CGMS-41, July 2013
Coordination Group for Meteorological Satellites - CGMSCoordination Group for Meteorological Satellites - CGMS
Global Wind Measurements from Earth Orbit – Atmospheric Motion Vectors and Development of Doppler Lidar Systems
Presented to CGMS-41 Working Group II, WGII/6
Dong L. Wu1, Michael J. Kavaya2
1NASA Goddard Space Flight Center2NASA Langley Research Center
NASA, CGMS-41, July 2013
Coordination Group for Meteorological Satellites - CGMS
Development of Doppler Lidar SystemsOutline
1. History2. Recent NASA Wind Lidar Development3. Potential for AMV Calibration/Validation4. Characteristics of Expected Wind
Measurements from Earth Orbit
Mission Concept Changes 1995 – 2013
Aerosol target lidar to both aerosol & molecular CO2 gas laser to solid-state laser 9.11 microns to 1.06 and 2.1 microns Single shot measurement to shot accumulation Continuous conical scan to step-stare conical 1.6-m diameter telescope to 0.25-m diameter Single rotating telescope to 4 fixed telescopes 20 J aerosol lidar pulse energy to 0.25 J 525 km orbit height to 400 km
Lidar Name
Wind Tracer Target
Laser Wavelength
(microns)Detection Method Location
DAWN Aerosols 2 Coherent NASA Langley
TWiLiTE Molecules 0.355 DirectDouble-Edge
NASA Goddard
OAWL Aerosols 0.355Direct
Mach Zehnder Quad
Interferometer
Ball Aerospace
FIDDL Molecules 0.355 DirectDouble-Edge
Ball Aerospace
Wind Lidar Systems Under NASA Development
Overview
NASA, CGMS-41, July 2013
Coordination Group for Meteorological Satellites - CGMS
NASA/JPL MISR winds
Preliminary assimilation runs with NRL NAVGEM indicate that the impact of MISR CMVs ranks at the 7th in terms of global tropospheric moist total energy error norm.
Hurricane Sandy (Oct 28, 2012)
October November 2012MISR Cloud Images
Winds (arrow) and Heights (color)
[Baker et al., 2013]
Stereoscopic technique for cloud motion and height from NASA’s Terra satellite Global daily wind vectors at 17.6 km resolution since 2000 A positive impact found on the NRL NWP system
NASA/JPL MISR Cloud Motion Vectors