碩士 / 國立中央大學 / 太空科學研究所 / 99 / Previous studies show that the ionospheric density is grater in the summer nighttime than daytime around the Weddell Sea region, which is named Weddell Sea Anomaly (WSA). In this research, measurement of an electron temperature probe (ETP) onboard the Experimental Scientific Education Micro-Satellite/Tatyana-2 (ESEMS/T-2) at 1000LT and 2200LT during December 2009-January 2010 are analyzed. ESEMS/T-2 observes anomalous enhancements in the ionosphere electron temperature, while DEMETER probes anomalous electron temperature enhancements and electron density reductions concurrently. Cross-comparisons between observations among ESEMS/T-2, DEMETER, and FORMOSAT-3/COSMIC that confirms existences of the nighttime electron density and daytime electron temperature anomalies over the Weddell Sea region. A further investigation on the observations and simulations of the horizontal wind model HWM93 shows that the northward meridional wind along the Earth’s magnetic field is essential to form the electron density enhancement in the Weddell Sea latitude.
| Identifer | oai:union.ndltd.org:TW/099NCU05069083 |
| Date | January 2011 |
| Creators | Fu-yuan Chang, 張富淵 |
| Contributors | Jann-yenq Liu, 劉正彥 |
| Source Sets | National Digital Library of Theses and Dissertations in Taiwan |
| Language | zh-TW |
| Detected Language | English |
| Type | 學位論文 ; thesis |
| Format | 53 |
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