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Development of Doppler Lidar Systems Outline History Recent NASA Wind Lidar Development

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.

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Development of Doppler Lidar Systems Outline History Recent NASA Wind Lidar Development

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  1. Global Wind Measurements from Earth Orbit – Atmospheric Motion Vectors and Development of Doppler Lidar SystemsPresented to CGMS-41 Working Group II, WGII/6Dong L. Wu1, Michael J. Kavaya21NASA Goddard Space Flight Center2NASA Langley Research Center

  2. Overview Development of Doppler Lidar Systems Outline History Recent NASA Wind Lidar Development Potential for AMV Calibration/Validation Characteristics of Expected Wind Measurements from Earth Orbit Wind Lidar Systems Under NASA Development • Mission Concept Changes 1995 – 2013 • Aerosol target lidarto 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

  3. NASA/JPL MISR Cloud Motion Vectors • 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 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) [Baker et al., 2013] November October MISR Cloud Images Winds (arrow) and Heights (color) 2012

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