Space Geodesy and Remote Sensing in the Southern Hemisphere

南半球空间大地测量学和遥感

• 批准号: 06044223
• 负责人: SHIBUYA Kazuo
• 金额: $ 4.03万
• 依托单位: National Institute of Polar Research
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for international Scientific Research
• 财政年份: 1994
• 资助国家: 日本
• 起止时间: 1994 至 1995
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-06044223/
• 关键词: GPS; IGS net; Precise gravimetry; GGP; ATGIA; Precise orbit; Southern hemisphere; Antarctica

1.Precise gravimetry(1) From the superconducting gravimeter records obtained at Syowa Station (39.6ﾟE,69.0ﾟS), analysis of the long-period tides was made.The ocean-tide corrected Mf and Mm delta factors are obtained as 1.169 +- 0.008, which are detectably larger than those of the 01 delta factor (1.157).(2) Our results are the first estimate of the Mf delta factor with inclusion of the realistic ocean tide modeling, and are submitted by Sato et al.(1996) to the Physics of the Earth and Planetary Interiors.2.Reference frame(1) We mede comparison of the VLBI determined ITRF92 coordinates and the DORIS determined ITRF92 coodinates of the SCAR GPS marker at Syowa Station.Although accurate discussion awaits more precise geodetic tie, discrepancy of the corresponding geocentric coordinate was 12 cm at the largest. The comparison analyzes were published in the Journal of Geodetic Society of Japan by Kanao et al. (1995).(2) Analyzes of SCAR92 GPS campaign data were continued with the processin … More g software of GAMIT+GLOBK.Analyzes of 10 days data with 17 Antarctic and southern hemisphere sites yielded large discrepancy of 10m for the X coordinate as compared with the corresponding VLBI-tied coordinate.The Y and Z coordinates were consistent each other within several centimeters.Thus we are now analyzing SCAR95 GPS campaign data set for comparison.3.International collaboration(1) We started cooperative tidal gravimetric research at Mawson Station with the Australian Geological Survey Organisation from November 1996.(2) We are now discussing to initiate Antarctic VLBI campaigns with participation of Syowa Station (Japan), Hobart (Australia), O'Higgins Station (Germany/Chile) and Hartebeesthoek (South Africa). Status report will be published by Shibuya (1996) to the Proceedings of APT95 Workshop.(3)Coordinated receivings of ERS-1/-2 SAR Tandem Mission over Antarctica were made and discussion of international program framework started to make digital elevation model (DEM) and to study ice dynamics studies. Less

1.精密重力仪(1)根据雪奥瓦台站(39.6ﾟE，69.0ﾟS)的超导重力仪记录，对长周期潮汐进行了分析，得到海潮校正后的Mf和mm增量因子为1.169±0.008，明显大于01增量因子的平均值(1.157)。(2)我们的结果是首次结合实际海潮模型估算了Mf增量因子。参考框架(1)我们比较了VLBI确定的ITRF92坐标和DORIS确定的SCAR GPS标记在Syowa站的ITRF92坐标。虽然准确的讨论还有待于更精确的大地联系，但对应的地心坐标的最大偏差是12厘米。Kanao等人在日本大地测量学会杂志上发表了这项比较分析。(2)对SCAR92GPS运动数据进行了…处理更多的GAMIT+GLOBK软件。对17个南极和南半球站点的10天数据进行分析，X坐标与对应的VLBI坐标相差10米。Y坐标和Z坐标在几厘米范围内彼此一致。因此，我们正在分析SCAR95 GPS运动数据集以供比较。3.国际合作(1)我们从1996年11月开始与澳大利亚地质调查局在莫森站进行合作潮汐重力测量研究。(2)我们正在讨论发起南极VLBI活动，日本的Syowa站，澳大利亚的Hobart站，奥希金斯站(德国/智利)和Hartebeesthoek(南非)。涉谷(1996年)将向APT95研讨会提交现状报告。(3)协调接收了南极ERS-1/-2SAR串列任务，并开始讨论国际方案框架，以制作数字高程模型(DEM)和研究冰动力学研究。较少

项目成果

Masaki Kanao: "A note on geodetic ties among the space geodesy sites at Syowa Station,Antarctica" Journal of Geodetic Society of Japan. (投稿中). (1995)

Masaki Kanao：“关于南极洲昭和站空间大地测量点之间的大地测量关系的说明”，日本大地测量学会杂志（1995 年）。

Hiroshi Miyaoka: "Low-latitude aurora on October 20-21,1989:An interpretation with magnetospheric particle simulation" Proceedings of International Conference on Magnetic Storms. 91-96 (1994)

宫冈浩：“1989年10月20-21日的低纬度极光：磁层粒子模拟的解释”国际磁暴会议论文集。

Masaki Kanao: "A note on geodetic ties among several reference points by different space geodetic techniques at Syowa Station, Antarctica" Journal of Geodetic Society of Japan. 41. 357-364 (1995)

Masaki Kanao：“关于南极洲昭和站不同空间大地测量技术的几个参考点之间的大地测量关系的说明”，日本大地测量学会杂志。