PREPARATION OF INTERNATIONAL SOLAR TERRESTRIAL ENERGY PROGRAM

太阳-地能计划（STEP）是1991年作为SCOSTEP（太阳-地物理科学委员会）国际合作研究项目启动的。本研究旨在建立项目的结构，并从国际和国内的角度对项目早期执行阶段的研究进行评估。这些项目涵盖了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、平流层和对流层区域的能量输送是研究的主要内容，主要集中在与太阳黑子活动相关的变分量上；即紫外线能量和太阳风能量在整个日地空间的传输是关键目标。作为全国性的活动，从1991年到1993年每年举行一次STEP专题讨论会，讨论STEP在日本的详细成果和产品；研究结果以日文发表，这些项目的摘要也以英文发表。通过这个研究项目的活动，STEP国家项目也建立了国际联系。该计划执行的主要项目是：1)建立区域性STEP地面、气球和火箭运载态势中心（GBRSC）。ii)建立STEP模拟推广办公室（SIMPO）。（三）协调地面观测设施与NASA、ESA、intercosmos和ISAS等四个空间机构编制的卫星方案。4)在日本建立交换STEP数据的数据网（STEP Net），建立STEP数据分析的核心计算机站。

The project of the Solar Terrestrial Energy Program (STEP) has started since 1991 as SCOSTEP (Science Committee on Solar Terrestrial Physics) international colloboration studies. The present studies aim then to establish the structure of the projects and to evaluate the research in the early execution phase of the program both from the sides of the international and notional 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 being 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 STEP symposia have been held in each year from 1991 to 1993 to discuss the detailed findings and products of STEP in Japan ; the results has been published in Japanese, and abstracts of these programs have also been published in English. Through the activity of this study program, the international connection of the STEP national program has also been established. The main items excuted in this program arei) Establishment of the regional STEP ground based, ballom, and rocket born situation center (GBRSC).ii) The establishment of STEP simulation promotion office (SIMPO).iii) Coordination of ground based observation facilities with the satellite programs prepared by four space agencies such as NASA, ESA, Inter Cosmos and ISAS.iv) Establishment of the data network to exchange the STEP data in Japan, so called STEP Net, and also establishment of the core computer stations for the STEP data analysis.