賴淑華 博士 (Dr. Shu-Hua Lai)

國立中央大學太空科學與科技研究中心 (CAPE, NCU)

October 23, 2026 (Friday), 15:00

S4-917, Chien-Shiung Building

研究緣起

近半個多世紀以來，人類正逐步將對月球的幻想與嚮往轉化為真實的開發。能走向這一步，除了有賴日新月異的新科技技術，更重要的是那份不滅的科學研究精神。你我皆知的「月有陰晴圓缺」，是月球繞地運行時因其相對於太陽與地球的位置改變，而在地球上呈現的「規律」。科學家卻可以透過長期觀測，並以數學與科學理論將這些觀測化為「可描述與預測的規則」，進而發揮實際應用價值，如曆法。

月球表面有許多局部的殘存微弱磁場，有些足以形成月表局部的「迷你磁層」，如同地球磁層，像個迷你防護罩保護著局部的月表免受到過多的太陽風輻射影響。同樣地，月球表面的迷你磁層也會隨著月球繞地運行、進出地球磁層，以及與太陽風相對位置的改變而週期性演化。隨著月球衛星酬載持續累積更豐富的磁場、電漿與粒子觀測資料，我們能否結合這些量測、數學方法與太空電漿物理，找出迷你磁層的變化規律，建立可信的週期預測模式？如此一來，才能評估特定月表區域是否能在不同月球軌道位置與太陽風條件下，提供穩定或可預報的屏蔽條件，並作為未來月球基地選址、太陽風暴露風險評估與長期任務規劃的重要科學依據。

Abstract

Lunar magnetic anomalies interact with the solar wind to form mini-magnetospheres and produce complex near-surface plasma environments. Lunar Prospector, Kaguya, and ARTEMIS observations have identified lunar external magnetic enhancement events (LEMEs), including shock-like enhancements whose occurrence exhibits an organized distribution along lunar orbit relative to Earth and the Sun. We propose a conceptual physics-based orbital-variation model of lunar mini-magnetospheres, constrained by these event distributions. The conceptual model will incorporate anomaly geometry and relative position, magnetic-field intensity, in situ magnetic-field observations, magnetopause height, solar-zenith-angle-dependent velocity shear, and solar-wind speed, direction, density, and temperature. Its core objective is to predict orbital variations in the spatial coverage of lunar mini-magnetospheres and in associated plasma dynamics. By transforming increasingly rich satellite observations into a predictive physical model, this work may support assessments of stable or predictable shielding conditions for lunar-base site selection and long-term mission planning.