CEDAR Radar and Radio Facilities Site of Regular Operation  Primary Measurement Frequency Range Contact <email> Incoherent Scatter Radars Sondrestrom, Greenland Ionospheric plasma density temperature vecity 1290 MHz J. Kelly <kelly@sri.com> Millstone Hill Observatory, Massachusetts, USA  440 MHz  J. Foster <jcf@hydra.haystack.edu> Arecibo Observatory, Puerto Rico  430 MHz  C. Tepley <craig@naic.edu> Jicamarca, Peru  50 MHz  D. Farley <donf@ee.cornell.edu> MF Radars Aguadilla, Puerto Rico Winds & tides (~70-100 km) 1.95 MHz  M. Ierkic <ierkic@exodo.upr.clu.edu> Barking Sands, Kauai, Hawaii, USA Winds (~70-100 km) 1.98 MHz D. C. Fritts <dave@leonardo.colorado.edu>    Frequency Agile Radar EPCO, Resolute Bay, Canada Mesospheric winds, plasma irregularities  2-50 MHz  R. Tsunoda <Tsunoda@unix.sri.com>    SuperDarn HF Coherent Scatter Radar Network Arctic and Antarctic Regions Polar Convection 8-20 MHz  R. Greenwald <ray_greenwald@jhuapl.edu>    Julia Radar Jicamarc, Peru Equatorial spread-F & sporadic-E  50 MHz B. Balsley <balsley@terra.colorado.edu>   MEDAC Radar  (Attached to ST radars) Biak, Indonesia  Winds (~70-100 km)  50 MHz  S. Avery <savery@numbat.colorado.edu> Christmas Island Darwin, Australia Piura, Peru    Meteor Radar Durham, New Hampshire, USA  Winds (180-110 km) 38.6 MHz  R. Clarke <ron.clard@unh.edu>  Digital Ionosonde Bear Lake Observatory,Utah, USA  Ionospheric layer height  1.6-15 MHz F. T. Berkey <berkey@psi.sci.sdl.usu.edu> Scintillation Receivers  Ancon, Peru Equatorial F-region scintillations  244 MHz, L-band  C.E. Valladares <cesar@dl5000.bc.edu> * Taken from the Coupling, Energetics and Dynamics of Atmospheric Regions: CEDAR Phase III Report, 1996.      The International Space Weather Clearinghouse: A cooperative project among The Scientific Committee for Solar-Terrestrial Physics (SCOSTEP), Solar-Terrestrial Physics - Results, Applications, and Modeling Phase (S-RAMP) Project, The University of Michigan and the Windows to the Universe project Please send comments to the main author: Janet Kozyra (jukozyra@engin.umich.edu) Responsible Official: Hannu Koskinnen, S-RAMP Space Weather Committee Chairman, (Hannu.Koskinen@fmi.fi) Space Weather logo created by and provided courtesy of Gregory Urbanski (neenie@ibm.net). All rights reserved. Rollover graphic adapted from an original web background provided courtesy of Being Seen   Copyright 1998 University of Michigan