HR: 1340h
AN: SA13A-0232    [Abstracts]
TI: Coordinated Imaging and Lidar measurements of Noctilucent Cloud Dynamics over Poker Flat, Alaska, August 2005.
AU: * Nielsen, K
EM: knielsen@cc.usu.edu
AF: Center for Atmospheric and Space Sciences and Physics Department, Utah State University, Old Main Hill, Logan, UT 84322 United States
AU: Taylor, M J
EM: mtaylor@cc.usu.edu
AF: Center for Atmospheric and Space Sciences and Physics Department, Utah State University, Old Main Hill, Logan, UT 84322 United States
AU: Jensen, P F
SA13A-0232 AF: Geophysical Institute, University of Alaska, University of Alaska, Fairbanks, AK 99775 United States
AU: Collins, R L
SA13A-0232 AF: Geophysical Institute, University of Alaska, University of Alaska, Fairbanks, AK 99775 United States
AU: Su, L
SA13A-0232 AF: Geophysical Institute, University of Alaska, University of Alaska, Fairbanks, AK 99775 United States
AU: Thurairajah, B
SA13A-0232 AF: Geophysical Institute, University of Alaska, University of Alaska, Fairbanks, AK 99775 United States
AU: McDonald, J G
SA13A-0232 AF: Geophysical Institute, University of Alaska, University of Alaska, Fairbanks, AK 99775 United States
AU: Marlow, Z J
SA13A-0232 AF: Department of Computer Science, North Carolina State University, North Carolina State University, Raleigh, NC 27695 United States
AB: In conjunction with the 2005 Polar Aeronomy and Radio Science (PARS) Summer School coordinated observations of noctilucent clouds (NLC) were made from central Alaska during August 2005 using imaging and lidar instrumentation. The image measurements was made from a field site near Donnelly Dome (63° N, 145° W) to record NLC over the lidar facility located at Poker Flat Research Range (PFRR) approximately 160 km to the north. A combination of two low-light digital color video cameras and several digital SLR cameras were used to image the NLC field over PFRR using wide and narrow field optics. At the same time NLC observations were made using the NICT Rayleigh lidar to investigate their altitude, structure and backscatter strength. Strong NLC were imaged from Donnelly Dome on three consecutive nights (August 8-10). These events were extensive, filling the northern twilight sky and were observed for over 4 hours. In particular the display of August 9 was very bright and was observed to extend well to the south of PFRR. The lidar measurements on this night were the strongest NLC signal yet recorded at PFRR. In this talk we will present a comparison between the imaging and lidar data focusing on August 9 display which was highly dynamic and observed to split into two distinct layers separated by approximately 1 km after local midnight. The two data sets will be used to study the dynamics of this display.
DE: 3332 Mesospheric dynamics
SC: SPA-Aeronomy [SA]
MN: Fall Meeting 2005