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ABBY NORMAL Model
Entry ID: abbyNormal
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Summary
Abstract: The ABsorption BY the D and E Region of HF Signals with NORMAL Incidence or
the ABBYNORMAL Model calculates the D and E region (60-150 km) ionization
sources and ion-neutral chemistry to obtain an electron density profile. The
physics-based models within AbbyNormal are identical to the Data-Driven
D-Region model (DDDR), which was created under NASA/Living-with-a-Star funding
(NASW-02108). The AbbyNormal Model (DDDR) has simplified D region chemistry.
The number of minor neutral and ion species used within the DDDR is small
compared to the enormous number generally present. However, the goal of the
DDDR is to provide an electron density profile for the HF absorption
calculation. Thus, much of the detail of the ion chemistry is ignored, but
enough remains to include all important source and loss processes to obtain a
good electron density profile.

The AbbyNormal electron density profile and MSIS neutral atmosphere are used to
calculate HF signal loss in decibels per kilometer (Figure 1). The loss per
kilometer is the integrated for the vertical transit. The E region is included
because approximately 10% of the non-deviative absorption occurs in the E
region.
Related URL
Link: GET DATA
Description: View Ionosphere Models Simulation Results.

Link: GET SERVICE
Description: Request runs for the ABBY NORMAL model.
Service Citation
Originators: Dr. J. Vincent Eccles et al.
Title: ABBY NORMAL Model
Provider: Community Coordinated Modeling Center
URL: http://ccmc.gsfc.nasa.gov/models/modelinfo.php?model=ABBYNormal
Service Keywords
MODELS >SOLAR-ATMOSPHERE/SPACE-WEATHER MODELS   [Definition]
Science Keywords
SUN-EARTH INTERACTIONS >SOLAR ENERGETIC PARTICLE PROPERTIES >TOTAL ELECTRON CONTENT   [Definition]
SUN-EARTH INTERACTIONS >SOLAR ACTIVITY >SOLAR X-RAY EMISSIONS   [Definition]
SUN-EARTH INTERACTIONS >IONOSPHERE/MAGNETOSPHERE DYNAMICS   [Definition]
ISO Topic Category
GEOSCIENTIFIC INFORMATION
Keywords
Models
Space Models
Solar X-Ray Emissions
Hardy Electron Precipitation Model
Service Provider
Community Coordinated Modeling Center, Geospace Physics Lab, Heliospheric Science Division, Science and Exploration Directorate, Goddard Space Flight Center, NASA

Service Provider Personnel
Name: MICHAEL HESSE
Phone: 301-286-8224
Fax: 301-286-1648
Email: Michael.Hesse at nasa.gov
Contact Address:
NASA
Goddard Space Flight Center
Mailstop 674.0
 City: Greenbelt
Province or State: MD
Postal Code: 20771
Country: USA
Distribution Media
Distribution_Media: Online
Personnel
MARIA KUZNETSOVA
Role: TECHNICAL CONTACT
Phone: 301-286-9571
Email: Maria.M.Kuznetsova at nasa.gov
Contact Address:
NASA
Goddard Space Flight Center
Mailstop 674.0
City: Greenbelt
Province or State: MD
Postal Code: 20771
Country: USA

TYLER B. STEVENS
Role: SERF AUTHOR
Phone: (301) 614-6898
Fax: 301-614-5268
Email: Tyler.B.Stevens at nasa.gov
Contact Address:
NASA Goddard Space Flight Center
Global Change Master Directory
City: Greenbelt
Province or State: MD
Postal Code: 20771
Country: USA
Publications/References
Eccles, J. V., R. D. Hunsucker, D. Rice, and J. J. Sojka, Space weather effects
on midlatitude HF propagation paths: observations and a data-driven D-region
model, Space Weather, 3, S01002, doi:10.1029/2004SW000094, 2005.
Creation and Review Dates
SERF Creation Date: 2006-08-14
SERF Last Revision Date: 2008-06-04
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