天文学进展
天文學進展
천문학진전
PROGRESS IN ASTRONOMY
2013年
3期
267-286
,共20页
史良文%申成龙%汪毓明%沈芳
史良文%申成龍%汪毓明%瀋芳
사량문%신성룡%왕육명%침방
太阳风%日冕物质抛射%行星际空间%空间天气
太暘風%日冕物質拋射%行星際空間%空間天氣
태양풍%일면물질포사%행성제공간%공간천기
solar wind%coronal mass ejections%interplanetary space%space weather
随着观测手段、理论模型和数值方法的发展,人们对各种太阳风扰动如日冕物质抛射,以及相关的空间天气效应的认识和理解越来越深入。为获取行星际背景磁场、背景太阳风参数和日冕物质抛射、激波等太阳风扰动的传播参数,人们建立发展了各种模式;在这些获取的参数基础上,建立了各种太阳风扰动的传播模式,从而为空间天气预报提供了必要的经验和理论模型支持。根据这些模式所研究和描述物理量的不同,将这些参数获取模式和传播预报模式分为背景磁场获取模式、背景太阳风参数获取模式、日冕物质抛射传播参数获取模式、日冕物质抛射偏转模式、日冕物质抛射(激波)传播模式以及基于三维磁流体力学的数值模拟方法,并分别概述性地总结了各种模式的特点及其用途。
隨著觀測手段、理論模型和數值方法的髮展,人們對各種太暘風擾動如日冕物質拋射,以及相關的空間天氣效應的認識和理解越來越深入。為穫取行星際揹景磁場、揹景太暘風參數和日冕物質拋射、激波等太暘風擾動的傳播參數,人們建立髮展瞭各種模式;在這些穫取的參數基礎上,建立瞭各種太暘風擾動的傳播模式,從而為空間天氣預報提供瞭必要的經驗和理論模型支持。根據這些模式所研究和描述物理量的不同,將這些參數穫取模式和傳播預報模式分為揹景磁場穫取模式、揹景太暘風參數穫取模式、日冕物質拋射傳播參數穫取模式、日冕物質拋射偏轉模式、日冕物質拋射(激波)傳播模式以及基于三維磁流體力學的數值模擬方法,併分彆概述性地總結瞭各種模式的特點及其用途。
수착관측수단、이론모형화수치방법적발전,인문대각충태양풍우동여일면물질포사,이급상관적공간천기효응적인식화리해월래월심입。위획취행성제배경자장、배경태양풍삼수화일면물질포사、격파등태양풍우동적전파삼수,인문건립발전료각충모식;재저사획취적삼수기출상,건립료각충태양풍우동적전파모식,종이위공간천기예보제공료필요적경험화이론모형지지。근거저사모식소연구화묘술물리량적불동,장저사삼수획취모식화전파예보모식분위배경자장획취모식、배경태양풍삼수획취모식、일면물질포사전파삼수획취모식、일면물질포사편전모식、일면물질포사(격파)전파모식이급기우삼유자류체역학적수치모의방법,병분별개술성지총결료각충모식적특점급기용도。
With the development of observation technology, theoretical models and numerical sim-ulation methods, people’s understanding of solar wind disturbances, e.g., coronal mass ejections (CMEs), and their resultant space weather effects are continuously advanced. Various models have been developed to obtain the parameters of interplanetary magnetic field (IMF), solar wind plasma, CMEs, shocks, and other disturbances. These models have formed the necessary supports for space weather forecasting. According to the function and purpose, these models could be classified as background IMF obtaining models, background solar wind obtaining models, CME kinematic parameters obtaining models, CME deflection models, CME (shock) propagation models and numerical MagnetoHydro-Dynamic (MHD) simulation methods. In this paper, we give a brief review of these models. First, the background IMF models are introduced, such as the potential field source surface (PFSS) model and the current sheet-source surface (CSSS) model. Then, the Wang-Sheeley-Arge (WSA) model and the interplanetary scintillation (IPS) model, which could be used to get the back-ground solar wind parameters, are also reviewed. In addition, the models to get the CME’s prop-agation parameters are reviewed, for example: type II radio bursts model, various cone models, graduated cylindrical Shell (GCS) model and some triangulation models. It is important in space weather forecasting that if and when the solar wind disturbances will arrive at the Earth. In this paper, we show the coronal hole (CH) compression models, the magnetic energy density gradient models (MEDG) and the magnetic frozen-in models. These models could be used to forecast whether a CME would arrive at the Earth. In addition, we also introduce the shock time of arrival model (STOA), the interplanetary shock propagation model (ISPM), the Hakamada-Akasofu-Fry (HAF) model and the shock propagation model (SPM), which were developed to forecast solar wind disturbance arrival time. Finally, we give a brief review of MHD numerical simulation models about the propagation of the solar wind disturbance.