Preparation of International Solar Terrestrial Energy Program

国际科学理事会向每个相应国家推荐了日地能源方案项目，作为日地物理学科学委员会的国际合作研究项目。本研究的目的是从国际和国家两个方面的观点出发，确定方案筹备阶段的项目结构，这些项目涵盖从太阳到地球大气层的日地关系领域的全部范围。通过行星际空间、磁层、电离层、中层大气、平流层和对流层的能量输运是研究的主要内容，主要集中在与太阳黑子活动有关的变量分量，即太阳黑子的能量输运。紫外线能量和太阳风能量在整个日地空间的传输是STEP的主要目标，作为国家级的活动，1990年4月在日本召开了第一届STEP研讨会，研究STEP的详细规划;研究结果以日文发表，这些项目的摘要也以英文发表。通过这项研究项目的活动，STEP国家方案的国际联系已经建立。具体项目是：（一）筹备建立地区性STEP地基气球和火箭情况中心;（二）筹备建立STEP模拟促进办公室;（三）规划与美国航天局、欧空局、国际宇宙组织和宇航研究所等四个空间机构编制的卫星方案合作的地基观测设施。

The project of the Solar Terrestrial Energy Program (STEP) has been recommended from ICSU to each corresponding country to pursue as SCOSTEP (Science Committee on Solar Terrestrial Physics) international colloboration studies. The present studies aim then to establish the structure of the projects in the preparation phase of the program both from the sides of the international and national stand points of viewes.The projects cover the total range of the fields in the solar terrestrial relationship starting from the sun to the earth's atmosphere. The energy transport through the regions of the interplanetary space, magnetosphere, ionosphere, middle atmosphere, stratosphere, and troposphere is main subjects of the studies mainly beeing focussed on the variable components associated with the sun spot activities ; i, e. The transport of energy of ultra violet and the solar wind energy through the whole solar-terrestrical space are key objectives.As the national activities the first STEP symposium has been held in April, 1990 to study the detail planning of STEP in Japan ; the results are published in Japanese, and abstracts of these programs have also been published in EnglishThrough the activity of this study program, the international connection of the STEP national program has been established. The detailed items are :i) Preparation of the regional STEP ground-based ballom and rocket-born situation center.ii) Preparation of the establishment of a STEP simulation promotion office.iii) Planning of ground based observation facilities collaborating with the satellite programs prepared by four space agencies such as NASA, ESA, Inter Cosmos and ISAS.Thus, towards the implimentation of the national STEP program with intimate collaborations with international counter parts preparation of STEP has successfully been carried out by the present program.