CEDAR Incoherent Scatter Radar Data Base from NCAR/HAO
Entry ID:
INCOHERENT_SCATTER_RADAR
|
Summary
The Coupling, Energetics, and Dynamics of Atmospheric Regions (CEDAR)
at the National Center for Atmospheric Research/High Altitude
Observatory (NCAR/HAO) incoherent-radar data base was established in
1985 by the institutions that operate the incoherent scatter radars in
Jicamarca/Peru (12S,284E,DIP=1N), Arecibo/Puerto Rico
(18N,293E,DIP=51N), St. Santin/France ... (45N,2E, DIP=61N), Millstone
Hill/Mass. USA (43N,288E,DIP=73N), Chatanika/Alaska USA (65N,213E),
and Eiscat/Scandinavia (70N,19E). The Chatanika radar was moved to
Sondrestrom/Greenland (67N,309E) in 1982. A radar operating from
Shigaraki, Japan began operating in 1986.
Incoherent scatter radars transmit very high power pulses at
frequencies above 50 mhz. The scattering occurs at small-scale plasma
fluctuations. The back-scattered power is proportional to the
electron density in the scattering volume (in many cases an on-site
ionosonde is used for calibration). the shape and Doppler broadening
of the received spectrum allow determination of electron and ion
temperature and ion composition and the shift against the transmitter
frequency indicates the line-of-sight ion drift. Multi-receiver
facilities like St. Santin and Eiscat allow measurements of all
velocity vector components. In addition simple aeronomic theory
together with a geomagnetic field model is often used to derive
neutral wind, neutral temperature, atomic oxygen density, and electric
field.
Below about 100 km and above about 800 km the ionospheric electron
densities become so low that the signal-to-noise ratio is no longer
acceptable for reliable data reduction.
Measurements are usually conducted during 2 to 3 days each month. The
temporal and spatial resolution depends on the mode used: long
integration times provide high sensitivity but low time resolution;
large backscatter volumes provide good signal-to-noise ratio but poor
altitude resolution. Typically the time resolution ranges from 1 to 30
minutes and the altitude resolution from a few to 100 km.
The Incoherent Scatter Radar (ISR) data base at CEDAR consists of the
following:
1. Jicamarca ISR data from the Jicamarca Radio Observatory in Peru
which has operated since 1963. The contact person is Wesley
Swartz. Faraday rotation data is available from David Hysell. The
Jicamarca Radio Observatory is operated by the Geophysical Institute
of Peru, Ministry of Education, with support from the National Science
Foundation through Cornell University.
2. Arecibo ISR data from the National Astronomy and Ionosphere Center
in Arecibo, Puerto Rico. The radar has been in operation since
1963. The contact person is Qihou Zhou. Arecibo Observatory is
operated by Cornell University under the National Science Foundation.
3. ISR data from the Middle and Upper atmosphere (MU) radar from
Shigaraki, Japan. The radar has been in operation since 1986. The
contact person is Shoichiro Fukao. The MU radar belongs to the Radio
Atomospheric Science Center of Kyoto Observatory.
4. ISR data from the fixed zenith antenna and the steerable antenna at
Millstone Hill, Haystack Observatory. The radar has been in operation
since 1960. The contact person is John Holt. The Millstone Hill ISR is
supported by the National Science Foundation.
5. ISR data from the quarristatic system in France operated between
1963-1987. The contact person is Christine Amory-Mazaudier. The ISR is
supported by the Institut d'Astronomie et de Geophysique and by the
Direction des Recherches et Moyens d'Essais.
6. ISR data from Chatanika radar in Alaska was opeated by SRI
International between 1971 and 1982. The radar was moved to
Sonderstrom, Greenland. The contact person is John Kelly. The radar
is supported by the NSF.
7. ISR data from the tristatic European Scatter System (EISCAT) in
Scandanavia has been in operation since 1981. A system is located in
Tromso, Norway and Kiruna, Sweden, and Sodankyla, Finland. The
contact person is Peter Collis. EISCAT is supported by organizations
in Finland, France, Germany, Japan, Norway, Sweden, and the UK.
8. ISR data from the Sondrestrom radar at Sondre Stromfjord, Greenland
has been in operation since 1983. The radar was moved from Chatanika,
Alaska by SRI International. The contact person is John Kelly. The
radar is upported by the NSF.
The CEDAR Data Base is accessible through the WWW and ftp, but users
must have a valid access form, available from the WWW or ftp (see
Access and Use constraints) or contact Barbara Emery
(emery@hao.ucar.edu). See the WWW site for additonal information on
accessing the data and Rules of the Road procedures.
http://cedarweb.hao.ucar.edu/catalog/Rules.html
Related URL
Geographic Coverage
Spatial coordinates
Data Set Citation
Temporal Coverage
Location Keywords
Science Keywords
ISO Topic Category
Platform
Instrument
Project
Access Constraints
Data are accessible via CEDAR WWW site, ftp and/or from individual
CEDAR investigators.
Access to the CEDAR Data Base requires submission of an access form
available from:
http://cedarweb.hao.ucar.edu/catalog/accreq.html
Use Constraints
Use of CEDAR data must follow established Rules of the Road:
http://cedarweb.hao.ucar.edu/catalog/Rules.html
Acknowledgement of the instruments and of the CEDAR Data Base is required.
Ancillary Keywords
Originating Center
Data Center
Distribution
Distribution Media:
online ftp, WWW, various media
Distribution Size:
varies
Distribution Format:
varies
Fees:
free or cost of reproduction
|
Personnel
CHRISTINE
AMORY-MAZAUDIER
Role:
INVESTIGATOR
Phone:
(33) 1 48 86 1263 x 3378
Fax:
(33) 1 48 89 4433
Email:
mazaudier at cetp.ipsl.fr
Contact Address:
CRPE
4 avenue de Neptune
City:
Saint-Maur CEDEX
Postal Code:
94107
Country:
France
ROY
BARNES
Role:
TECHNICAL CONTACT
Phone:
(303) 497-1230
Fax:
(303) 497-1137
Email:
bozo at ucar.edu
Contact Address:
National Center for Atmospheric Research
Scientific Computing Division
P.O. Box 3000
City:
Boulder
Province or State:
CO
Postal Code:
80307
Country:
USA
DIETER
BILITZA
Role:
DIF AUTHOR
Phone:
301-286-0190
Fax:
301-286-1771
Email:
Dieter.Bilitza-1 at nasa.gov
Contact Address:
NASA
Goddard Space Flight Center
Mailstop 672.0
City:
Greenbelt
Province or State:
MD
Postal Code:
20771
Country:
USA
PETER
COLLIS
Role:
INVESTIGATOR
Phone:
(46) 980-70160
Fax:
(46) 980-76161
Email:
peter at eiscathq.irf.se
Contact Address:
EISCAT Scientific Association
Box 812
City:
Kiruna
Postal Code:
S-981 28
Country:
Sweden
SHOICHIRO
FUKAO
Role:
INVESTIGATOR
Phone:
(81) 774-33-5343
Fax:
(81) 774-31-8463
Email:
fukao at kurasc.kyoto-u.ac.jp
Contact Address:
The Science Center
Kyoto University
Gokanosyo, Uji
City:
Kyoto
Postal Code:
611
Country:
Japan
JOHN
HOLT
Role:
INVESTIGATOR
Phone:
781-981-5625
Fax:
781-981-5766
Email:
jmh at haystack.mit.edu
Contact Address:
MIT Haystack Observatory
Off Route 40
City:
Westford
Province or State:
MA
Postal Code:
01886
Country:
USA
DAVID
HYSELL
Role:
INVESTIGATOR
Phone:
864-656-4349
Fax:
864-656-0805
Email:
daveh at vlasov.phys.clemson.edu
Contact Address:
Department of Physics
Clemson University
205 Kinard Laboratory
City:
Clemson
Province or State:
SC
Postal Code:
29634
Country:
USA
JOHN
KELLY
Role:
INVESTIGATOR
Phone:
415-859-3749
Fax:
415-322-2318
Email:
kelly at sri.com
Contact Address:
Geoscience and Engineering Center
SRI International
333 Ravenswood Avenue
City:
Menlo Park
Province or State:
CA
Postal Code:
94025
Country:
USA
ERHAN
KUDEKI
Role:
INVESTIGATOR
Phone:
217-333-4153
Fax:
217-333-5624
Email:
kudeki at uiuc.edu
Contact Address:
Computer and Systems Research Laboratory
Department of Electrical and Computer Engineering
University of Illinois
City:
Urbana
Province or State:
IL
Postal Code:
61801
Country:
USA
ARTHUR
D.
RICHMOND
Role:
INVESTIGATOR
Phone:
(303)497-1570
Fax:
303-497-1589
Email:
richmond at ucar.edu
Contact Address:
National Center for Atmospheric Research
High Altitude Observatory
P.O. Box 3000
City:
Boulder
Province or State:
CO
Postal Code:
80307
Country:
USA
WESLEY
SWARTZ
Role:
INVESTIGATOR
Phone:
607-255-7120
Fax:
607-255-6236
Email:
wes at ee.cornell.edu
Contact Address:
School of Electrical Engineering
316 Rhodes Hall
Cornell University
City:
Ithaca
Province or State:
NY
Postal Code:
14853
Country:
USA
QIHOU
ZHOU
Role:
INVESTIGATOR
Phone:
809-878-2612
Fax:
809-878-1861
Email:
zhou at naic.edu
Contact Address:
Arecibo Observatory
P.O. Box 995
Province or State:
ARECIBO
Country:
PUERTO RICO
|
Publications/References
Alcayd D., editor, Incoherent Scatter Theory, Practice and Science,
Technical Report 97/53 from a collection of lectures given in Cargese,
Corsica, 1995, EISCAT Scientific Association, 314 pp, November 1997.
Blanc, M., Electrodynamics of the ionosphere from incoherent scatter:
A review, J. Geomag. Geoelectr., 31, 137-164, 1979.
Emery, B.A. and ... Barnes, R. M. 1998. CEDAR Data Base
Catalogue. National Center for Atmospheric Research (NCAR), Boulder,
CO.
http://cedarweb.hao.ucar.edu/catalog/cat.toctext.html
Evans, J.V., Theory and practice of ionosphere study by Thomson
scatter radar, Proc. IEEE, 57, 496-530, 1969.
Evans, J.V., Incoherent scatter contributions to studies of the
dynamics of the lower thermosphere, Rev. Geophys. Space Phys., 16,
195-216, 1978.
Evans, J.V., W.L. Oliver, Jr., and J.E. Salah, Thermospheric
properties as deduced from incoherent scatter measurements,
J. Atmos. Terr. Phys., 41, 259-278, 1979.
Creation and Review Dates
Last DIF Revision Date:
2005-07-28
|
|
Links
