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Assessing Models For Ionospheric Weather Specifications Over Australia During The 2004 Climate And Weather Of The Sun-Earth-System (Cawses) Campaign, Jan Josef Sojka, D. C. Thompson, L. Scherliess, Robert W. Schunk, T. J. Harris Jan 2007

Assessing Models For Ionospheric Weather Specifications Over Australia During The 2004 Climate And Weather Of The Sun-Earth-System (Cawses) Campaign, Jan Josef Sojka, D. C. Thompson, L. Scherliess, Robert W. Schunk, T. J. Harris

All Physics Faculty Publications

The Utah State University (USU) Global Assimilation of Ionospheric Measurements (GAIM) program is developing assimilation models to specify ionospheric weather. In this study the Gauss Markov Kalman Filter (GMKF) GAIM model was used. The period 20 March through 19 April 2004, which spanned the Climate and Weather of the Sun-Earth-System (CAWSES) first study period, has been extensively studied to validate the performance of the GAIM model. Although the USU-GAIM model has both regional and global capabilities and can assimilate data from a wide variety of ionospheric observations, for this study the GMKF model was run in a global mode using …


Climatology Of Short-Period Gravity Wavesobserved Over Northern Australia During The Dawex Campaign And Their Dominant Sourceregions, Pierre-Dominique Pautet, Michael J. Taylor, A. Z. Liu, G. R. Swenson Jan 2005

Climatology Of Short-Period Gravity Wavesobserved Over Northern Australia During The Dawex Campaign And Their Dominant Sourceregions, Pierre-Dominique Pautet, Michael J. Taylor, A. Z. Liu, G. R. Swenson

All Physics Faculty Publications

The Darwin Area Wave Experiment (DAWEX) was designed to investigate the generation and propagation of gravity waves from intense regions of localized convection that occur regularly over northern Australia (in the vicinity of Darwin) during the premonsoon period. This multinational program was conducted during the austral spring 2001 using a range of coordinated optical, radar, and in situ balloon measurements. As part of this program, all-sky image observations of short-period gravity wave events in the near infrared OH nightglow emission (altitude ∼87 km) were made from two well-separated sites in northern Australia: Wyndham (15.5°S, 128.1°E) and Katherine (14.5°S, 132.3°E), over …