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Facilitating Heliophysics Research by the Virtual Wave Observatory (VWO) Context Data Search CapabilityWave phenomena, ranging from freely propagating electromagnetic radiation (e.g., solar radio bursts, AKR) to plasma wave modes trapped in various plasma regimes (e.g., whistlers, Langmuir and ULF waves) and atmospheric gravity waves, are ubiquitous in the heliosphere. Because waves can propagate, wave data obtained at a given observing location may pertain to wave oscillations generated locally or from afar. While wave data analysis requires knowledge of wave characteristics specific to different wave modes, the search for appropriate data for heliophysics wave studies also requires knowledge of wave phenomena. In addition to deciding whether the interested wave activity is electrostatic (i.e., locally trapped) or electromagnetic (with propagation over distances), considerations must be given to the dependence of the wave activity on observer's location or viewing geometry, propagating frequency range and whether the wave data were acquired by passive or active observations. Occurances of natural wave emissions i the magnetosphere (e.g, auroral kilometric radiation) are often dependent also on the state (e.e., context) of the magnetosphere that varies with the changing solar wind, IMF and geomagnetic conditions. Fung and Shao [2008] showed recently that magnetospheric state can be specified by a set of suitably time-shifted solar wind, IMF and the multi-scale geomagnetic response parameters. These parameters form a magnetospheric state vector that provides the basis for searching magnetospheric wave data by their context conditions. Using the IMAGE Radio Plasma Imager (RPI) data and the NASA Magnetospheric State Query System (MSOS) [Fung, 2004], this presentation demonstrates the VWO context data search capability under development and solicits feedback from the Heliophysics research community for improvements.
Document ID
20090033877
Acquisition Source
Goddard Space Flight Center
Document Type
Conference Paper
Authors
Fung, Shing F.
(NASA Goddard Space Flight Center Greenbelt, MD, United States)
Shao, Xi
(Maryland Univ. College Park, MD, United States)
Garcia, Leonard N.
(ADNET Systems, Inc. Potomac, MD, United States)
Galkin, Ivan A.
(Massachusetts Univ. Lowell, MA, United States)
Benson, Robert F.
(NASA Goddard Space Flight Center Greenbelt, MD, United States)
Date Acquired
August 24, 2013
Publication Date
January 1, 2009
Subject Category
Solar Physics
Meeting Information
Meeting: 2009 American Geophysical Union Fall Meeting
Location: San Francisco, CA
Country: United States
Start Date: December 14, 2009
End Date: December 18, 2009
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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