摘要
地球定向参数(EOP)是空间科学和地球科学的重要数据。EOP产品由国际地球自转及参考系统服务组织IERS提供,分为预报解、快速解和长期解。IERS EOP 05 C04是最新的IERS EOP产品,与ITRF2005一致。本文详细介绍了IERS 05 C04的组合流程,并采用频谱分析对其进行质量评价,结果表明IERS 05 C04的极移相对于IERS C04在X方向的7 d周期项,Y方向的14 d周期项有明显的改进。
Earth Orientation Parameter（ EOP） is important data for space and terrestrial scientific research. IERS is responsible for providing EOP products,including prediction products,rapid products and long-term products. IERS 05 C04 is the current IERS EOP product which is consistent with ITRF2005. This paper proposes IERS 05 C04 combination flow. Results show that IERS 05 C04 is improved at 7-day period term in the X direction and 14-day period term in the Y direction.
出处
《城市勘测》
2013年第2期109-112,共4页
Urban Geotechnical Investigation & Surveying
