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Summary
The Coupling, Energetics, and Dynamics of Atmospheric Regions (CEDAR)
Data Base at NCAR/HAO holds information on theoretical models and
source code for several empirical models.

Theoretical models include:
AMIE: The Assimilative Mapping of Ionopsheric Electrodynamics.
Produces output on electric fields and conductances. Contact Arthur
Richmond or ... Barbara Emery.

CTIM and CTIP: The Coupled Thermosphere Ionosphere Model and Coupled
Thermosphere Ionopshere Plasmasphere model are global models of the
themosphere and ionosphere above 80 km. Contact person is Tim
Fuller-Rowell.

FLIP: The Field Line Interhemispheric Plasma model solves for plasma
densities and temperatures along flux tubes. The code is available from
Philip Richards.

GLOW: A thermospheric airglow model developed by Stan Solomon.

TIGCM, TIEGCM, and TIMEGCM: The Thermosphere/Ionosphere General
Circulation Model (TIGCM) has been expanded to solve for
electrodynamics (TIEGCM) in low and mid-latitudes, and extended to the
mesosphere (TIMEGCM). Contact Raymond Roble or Barbara Emery.

VSH: The Vector Spherical Harmonic produces thermospheric (110-1500
km) global neutral winds based on TIGCM model runs. Source code is
available from Timothy Killeen.

Empirical Models include:
APEX: a geomagnetic field model. Richmond (1995), Van Zandt , et. al
(1972).

CHIU: Chiu model electron densities. Chiu (1975)

E FIELD: gives quiet-day ionospheric electrostatic potential and E X B
drifts at 300 km for magnetic latitudes below 60 degrees during polar
minimum conditions. Richmond, et. al (1980).

HMR: gives electric potential and fields defined by Rich and Maynard
(1989) from patterns described by Heppner and Maynard (1987).

HPI: tables of interpolations of the NOAA satellite auroral electron
flux, Pederson and Hall conductance, and characteristic energy based
on the Hemispheric Power Index (HPI). Fuller-Powell and Evans (1987).

HWM: Horizontal Wind Model gives neutral winds. Hedin, et. al (1988),
Hedin, et. al (1991)

IRI: returns neutral temperatures and ionospheric parameters and ion
composition. Bilitza (1986).

IZMEM: Electric potentials and fields. Papitashvili, et. al (1994).

MAGFLD: geomagnetic field model for 1965-1995.

MH: Electric potentials and fields parameterized by HPI and Millstone
Hill data. Foster (1987), Foster, et. al (1986).

MSIS: returns neutral temperature and composition values. Hedin
(1983), Hedin (1987).

WEIMER: Electric potentials and fields. Weimer (1996).

Several of these models are also available from the National Space
Science Data Center (NSSDC) at NASA. See:
http://www.gsfc.nasa.gov/nssdc/nssdc_home.html
Bilitza (1990), Bilitza (1991), Bilitza (1992).

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

Link: GET DATA Description: CEDAR Data Base Catalogue

Geographic Coverage Spatial coordinates   

N: 90.0

S: -90.0

E: 180.0

W: -180.0

Data Set Citation

Dataset Creator: CEDAR Dataset Title: Theoretical and Empirical Models Dataset Series Name: CEDAR Data Base Dataset Release Place: Boulder, CO Dataset Publisher: NCAR/HAO Online Resource: http://cedarweb.hao.ucar.edu/catalog/cat.toctext.html

Location Keywords

GEOGRAPHIC REGION > GLOBAL VERTICAL LOCATION > IONOSPHERE VERTICAL LOCATION > THERMOSPHERE

Science Keywords

ATMOSPHERE > ATMOSPHERIC TEMPERATURE > AIR TEMPERATURE ATMOSPHERE > ATMOSPHERIC WINDS > UPPER LEVEL WINDS SUN-EARTH INTERACTIONS > SOLAR ENERGETIC PARTICLE FLUX > ELECTRON FLUX SUN-EARTH INTERACTIONS > SOLAR ENERGETIC PARTICLE PROPERTIES > PARTICLE DENSITY SUN-EARTH INTERACTIONS > SOLAR ENERGETIC PARTICLE PROPERTIES > PARTICLE DISTRIBUTION FUNCTIONS SOLID EARTH > GEOMAGNETISM > ELECTRICAL FIELD SOLID EARTH > GEOMAGNETISM > MAGNETIC FIELD SOLID EARTH > GEOMAGNETISM > REFERENCE FIELDS ATMOSPHERE > ATMOSPHERIC RADIATION > AIRGLOW ATMOSPHERE > ATMOSPHERIC ELECTRICITY > ELECTRIC FIELD SUN-EARTH INTERACTIONS > IONOSPHERE/MAGNETOSPHERE DYNAMICS > ELECTRIC FIELDS/ELECTRIC CURRENTS SUN-EARTH INTERACTIONS > IONOSPHERE/MAGNETOSPHERE DYNAMICS > GEOMAGNETIC FORECASTS SUN-EARTH INTERACTIONS > IONOSPHERE/MAGNETOSPHERE DYNAMICS > GEOMAGNETIC INDICES SUN-EARTH INTERACTIONS > IONOSPHERE/MAGNETOSPHERE DYNAMICS > MAGNETIC FIELDS/MAGNETIC CURRENTS SUN-EARTH INTERACTIONS > IONOSPHERE/MAGNETOSPHERE DYNAMICS > PLASMA WAVES SUN-EARTH INTERACTIONS > SOLAR ENERGETIC PARTICLE PROPERTIES > PARTICLE DENSITY > ELECTRON DENSITY

ISO Topic Category

CLIMATOLOGY/METEOROLOGY/ATMOSPHERE GEOSCIENTIFIC INFORMATION

Platform

MODELS

Project

CEDAR > Coupling, Energetics, and Dynamics of Atmospheric Regions

Quality

Refer to individual contacts for information.

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

Interested users should contact the modeller and in either work in
close cooperation with the modeller or use the model themselves.

Ancillary Keywords

AMIE APEX CEDAR CHIU CTIM CTIP E FIELD ELECTRON DENSITY ELECTROSTATIC POTENTIAL FLIP GEOMAGNETIC FIELDS GLOW HMR HPI HWM IONOSPHERIC DENSITY IRI IZMEM MAGFLD MH MODELS MSIS NCAR NEUTRAL TEMPERATURES NEUTRAL WINDS TIEGCM TIGCM TIMEGCM VSH WEIMER

Data Set Progress

IN WORK

Originating Center

NCAR/HAO

Data Center

Coupling, Energetics and Dynamics of Atmospheric Regions, High Altitude Observatory, National Center for Atmospheric Research, UCAR Data Center URL: http://cedarweb.hao.ucar.edu/ Data Center Personnel Name: BARBARA EMERY Phone: (303) 497-1596 Fax: (303) 497-1589 Email: emery 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

Distribution

Distribution Media: ftp, WWW Distribution Size: varies Distribution Format: varies Fees: None, may depend on cost of reproduction

Personnel

BARBARA EMERY Role: INVESTIGATOR Phone: (303) 497-1596 Fax: (303) 497-1589 Email: emery 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 TIM FULLER-ROWELL Role: INVESTIGATOR Phone: 303-497-5764 Fax: 303-497-3645 Email: tifr at sec.noaa.gov Contact Address: Space Enviornment Center/NOAA 325 Broadway City: Boulder Province or State: CO Postal Code: 80303 Country: USA TIMOTHY KILLEEN Role: INVESTIGATOR Phone: (734) 647-3435 Fax: (734) 763-0437 Email: tkileen at umich.edu Contact Address: Space Physics Research Laboratory University of Michigan 2455 Hayward City: Ann Arbor Province or State: MI Postal Code: 48109-2143 Country: USA GENE R. MAJOR Role: DIF AUTHOR Email: gsfc-gcmduso at mail.nasa.gov PHILIP RICHARDS Role: INVESTIGATOR Email: richards at cspar.uah.edu Contact Address: Computer Science Department Research Institute C-10 University of Alabama at Huntsville City: Huntsville Province or State: AL Postal Code: 35899 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 RAYMOND G. ROBLE Role: INVESTIGATOR Phone: 303-497-1562 Fax: 303-497-1589 Email: roble 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 STAN SOLOMON Role: INVESTIGATOR Email: solomon at tethys.colorado.edu Contact Address: University of Colorado LASP Campus Box 392 City: Boulder Province or State: CO Postal Code: 80309 Country: USA

Publications/References

Bilitza, D., International reference ionosphere: Recent developments,
Radio. Sci., 21, 343-346, 1986.

Bilitza, D., Solar-terrestrial models and application software,
National Space Science Data Center Report, NSSDC 90-19, Greenbelt, MD,
July, 1990.

Bilitza, D., Solar-terrestrial models at the National Space Science
Data Center, J. ... Atmos. Terr. Phys. 53, 1207-1211, 1991.

Bilitza, D., Solar-terrestrial models and application software,
Planet. Space Sci. 40, 541-579, 1992.

Chiu, Y.T., An improved phenomenological model of ionospheric
density, J. Atmos. Terr. Phys., 37, 1563-1570, 1975.

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

Foster, J. C., Radar deduced models of the convection electric field,
Proceedings of the International Symposium on Quanititative Modeling
of Magnetosphere-Ionosphere Coupling Processes, editors Y. Kamide and
R. A. Wolf, Kyoto, Japan, 71-76, 1987.

Foster, J. C., J. M. Holt, R. G. Musgrove, and D. S. Evans,
Ionospheric convection associated with discrete levels of particle
precipitation, Geophys. Res. Lett., 13, 656-659, 1986.

Fuller-Rowell, T. J., M. V. Codrescu, H. Rishbeth, R. J. Moffett and
S. Quegan, Response of the thermosphere and ionosphere to geomagnetic
storms, J. Geophys. Res., 99, 3896-3914, 1994.

Fuller-Rowell, T. J., D. Rees, S. Quegan, R. J. Moffett, and
M. V. Codrescu, A Coupled Thermosphere Ionosphere Model (CTIM), The
STEP Handbook, edited by R. W. Schunk, Utah State University, 217-238,
1996.

Fuller-Rowell, T. J. and D. S. Evans, Height-integrated Pedersen and
Hall conductivity patterns inferred from the TIROS-NOAA satellite
data, J. Geophys. Res., 92, 7606-7618, 1987.

Hedin, A. E., N. W. Spencer, and T. L. Killeen, Empirical global model
of upper thermosphere winds based on Atmosphere and Dynamics Explorer
satellite data, J. Geophys. Res., 93, 9959-9978, 1988.

Hedin, A. E., M. A. Biondi, R. G. Burnside, G. Hernandez,
R. M. Johnson, T. L. Killeen, C. Mazaudier, J. W. Meriwether,
J. E. Salah, R. J. Sica, R. W. Smith, N. W. Spencer, V. B. Wickwar,
and T. S. Virdi, Revised global model of thermosphere winds using
satellite and ground based observations, J. Geophys. Res., 96,
7657-7688, 1991.

Hedin, A.E., A revised thermospheric model based on mass spectrometer
and incoherent scatter data: MSIS-83, J. Geophys. Res., 88,
10170-10188, 1983.

Hedin, A.E., MSIS-86 thermospheric model, J. Geophys. Res., 92,
4649-4662, 1987

Heppner, J. P. and N. C. Maynard, Empirical high-latitude electric
field models, J. Geophys. Res., 92, 4467-4489, 1987.

Killeen, T. L., R. G. Roble and N. W. Spencer, A computer model of
global thermospheric winds and temperatures, Adv. Space Res., Vol. 7,
No. 10, 207-215, 1987.

Millward, G. H., R. J. Moffett, S. Quegan, and T. J. Fuller-Rowell, A
Coupled Thermosphere Ionosphere Plasmasphere model (CTIP), The STEP
Handbook, edited by R. W. Schunk, Utah State University, 239-280,
1996.

Millward, G. H., H. Rishbeth, T. J. Fuller-Rowell, A. Aylward,
S. Quegan and R. J. Moffett, Ionospheric F2 region seasonal and
semi-annual variations, J. Geophys. Res., 100, 5149-5156, 1995.

Papitashvili, V. O., B. A. Belov, D. S. Faermark, Ya. I. Feldstein,
S. A. Golyshev, L. I. Gromova, and A. E. Levitin, Electric potential
patterns in the northern and southern polar regions parameterized by
the interplanetary magnetic field, J. Geophys. Res., 99,
13,251-13,262, 1994.

Rich, F. J. and N. C. Maynard, Consequences of using simple analytical
functions for the high-latitude convection electric field,
J. Geophys. Res., 94, 3687-3701, 1989.

Richards, P. G., An improved algorithm for determining neutral winds
from the height of the F2 peak electron density, J. Geophys. Res., 96,
17,839-17,846, 1991.

Richmond, A. D., M. Blanc, B. A. Emery, R. H. Wand, B. G. Fejer,
R. F. Woodman, S. Ganguly, P. Amayenc, R. A. Behnke, C. Calderon, and
J. V. Evans, An empirical model of quiet-day ionospheric electric
fields at middle and low latitudes, J. Geophys. Res., 85, 4658-4664,
1980.

Richmond, A. D., Ionospheric electrodynamics using magnetic apex
coordinates, J. Geomag. Geoelectr., 47, 191-212, 1995.

Solomon, S. C. and V. J. Abreu, The 630 nm Dayglow, J. Geophys. Res.,
94, 6817-6824, 1989.

VanZandt, T. E., W. L. Clark and J. M. Warnock, Magnetic apex
coordinates: A magnetic coordinate system for the ionospheric F2
layer, J. Geophys. Res., 77, 2406-2411, 1972.

Weimer, D. R., A flexible, IMF dependant model of high-latitude
electric potentials having "space weather" applications, Geophysical
Research Letters, 23, 2549-2552,1996.

Creation and Review Dates

Last DIF Revision Date: 2006-10-13

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