Proceedings with Extended Abstracts (single PDF file) - Radio ...

and the local organizing committee, supported by Jicamarca personnel and universitystudents, kept track of the very pleasant and highly functional workshop performance.Session I.1 was on radar scatteringprocesses in the neutral atmosphere(convened by H. Luce and A. Muschinski).This session dealt with observational andtheoretical investigations (1) on how toseparate the effects of different scatteringmechanisms in the same data set, and on (2)radar echo characteristics in different radarconfigurations and their interpretations arepresented. Emphasis of the papers wasplaced on contributions that discuss newobservations (e.g., multi-beam, multifrequency,multi-receiver, and/or multiregimeradar observations, also intercomparisonswith in situ measurements) onthe basis of innovative, first-principle theoretical analysis. Invited talks were given by D.Fritts on direct numerical simulations of turbulence and radar backscatter, and by F.Dalaudier on combined radar and balloon observations. B. Balsley’s kite observations,which show very thin structures in the lower troposphere point into the direction ofunderstanding the highly specular radar returns as well.Yen-Hsyang Chu during Session I.2. (courtesy of J.Zavala)Session I.1 first speech by David Fritts.(courtesy of J. Zavala)Session I.2 was on D-, E-, and F-regioncoherent scattering (convened by D. Hyselland R.D. Palmer). It was devoted to thetheory and observation of coherent scatterfrom ionospheric irregularities at alllatitudes. Papers were presented. pertainingto such mature fields of study as the auroraland equatorial electrojets, PMSE, sporadicE-layers, and equatorial spread-F. Recentand planned campaigns like SEEK II,C/NOFS, and CIELO attest to the fact thatnumerous problems remain unsolved inthese areas. In addition, papers on emergingareas of research were given, includinglong-lived meteor trails, 150 km echoes,daytime spread-F, and mid-latitude spread-F. Novel experimental techniques such aspassive radar, networked radar, radar imaging, and coherent scatter Faraday rotation maypromote rapid progress in the areas outlined above. Reports describing new experimentalradar techniques were given also in section II. Invited papers were given by E. Kudeki on150-km echoes, J. Chau on E region studies at low-latitudes,W. Singer et al. on PMSE, F. Lind on E region irregularities at high latitudes, and S. Fukaoon the SEEK-2 campaign. Due to short-notice travel cancellation P. Chilson could not givehis invited talk on PMSE.13