globalchange  > 气候减缓与适应
DOI: 10.1002/grl.50909
论文题名:
Phase Space Density matching of relativistic electrons using the Van Allen Probes: REPT results
作者: Morley S.K.; Henderson M.G.; Reeves G.D.; W. Friedel R.H.; Baker D.N.
刊名: Geophysical Research Letters
ISSN: 0094-8545
EISSN: 1944-8276
出版年: 2013
卷: 40, 期:18
起始页码: 4798
结束页码: 4802
语种: 英语
英文关键词: phase space density ; radiation belts ; relativistic electrons ; Van Allen probes
Scopus关键词: Adiabatic invariants ; Belt applications ; Cross calibration ; Magnetic field magnitudes ; Magnetic field models ; Non-adiabatic process ; Phase space densities ; Relativistic electron ; Magnetic fields ; Probes ; Radiation belts ; Uncertainty analysis ; Phase space methods ; belt ; calibration ; electron ; identification method ; instrumentation ; magnetic field ; measurement method ; quantitative analysis
英文摘要: Phase Space Density (PSD) matching can be used to identify the presence of nonadiabatic processes, evaluate accuracy of magnetic field models, or to cross-calibrate instruments. Calculating PSD in adiabatic invariant coordinates requires a global specification of the magnetic field. For a well specified global magnetic field, nonadiabatic processes or inadequate cross calibration will give a poor PSD match. We have calculated PSD(μ, K) for both Van Allen Probes using a range of models and compare these PSDs at conjunctions in L* (for given μ, K). We quantitatively assess the relative goodness of each model for radiation belt applications. We also quantify the uncertainty in the model magnetic field magnitude and the related uncertainties in PSD, which has applications for modeling and particle data without concurrent magnetic field measurements. Using this technique, we show the error in PSD for an energy spectrum observed by the relativistic electron-proton telescope (REPT) is a factor of ∼1.2 using the TS04 model. © 2013. American Geophysical Union. All Rights Reserved.
URL: https://www.scopus.com/inward/record.uri?eid=2-s2.0-84883795973&doi=10.1002%2fgrl.50909&partnerID=40&md5=468b4f6e0709971ceeff4754a9693c48
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/5809
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作者单位: Space Science and Applications, Los Alamos National Laboratory, Mail Stop D466, PO Box 1663, Los Alamos, NM 87545, United States

Recommended Citation:
Morley S.K.,Henderson M.G.,Reeves G.D.,et al. Phase Space Density matching of relativistic electrons using the Van Allen Probes: REPT results[J]. Geophysical Research Letters,2013-01-01,40(18).
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