Study of Duct Characteristics Deduced from Low Latitude Ground Observations of Day-Time Whistler at Jammu

• 作者: M. Altaf M. M. Ahmad
• 来源期刊: 天文学与天体物理学国际期刊(英文)
• 学科: 医学
• 关键词: Electron Density Dispersion DUCT WHISTLERS IONOSPHERE
• 年，卷（期）: 2013,（3）
• 页码范围: 274-277
• 页数: 4页
• 分类号: R73

摘要

Propagation characteristics of low latitude whistler duct characteristics have been investigated based on day-time measurements at Jammu. The morphogical characteristics of low latitude whistlers are discussed and compared with characteristics of middle and high latitude whistlers. The Max. electron density (Nm) at the height of the ionosphere obtained from whistler dispersion comes out to be higher than that of the background which is in accordance with the characteristics of whistler duct. The equivalent width is found to be close to the satellite observations and the characteristics of whistler duct in low latitude ionosphere are similar to those in middle and high latitude ionosphere. The width of ducts estimated from the diffuseness of the whistler track observed during magnetic storm is found to lie in the range of 50 - 200 Km.