GNSS - ISDC

The term GNSS (Global Navigation Satellite Systems) comprises the different navigation satellite systems like GPS, GLONAS and the future Galileo as well as rawdata from GNSS microwave receivers and processed or derived higher level products and required auxiliary data. The results of the GZF GNSS technology based projects are used as contribution for maintaining and studying the Earth rotational behavior and the global terrestial reference frame, for studying neotectonic processes along plate boundaries and the interior of plates and as input to short term weather forecasting and atmosphere/climate research. Currently only selected products like observation data, navigation data (ephemeriden), meteorological data as well as quality data with a limited spatial coverage are provided by the GNSS ISDC.

GNSS（全球导航卫星系统）一词涵盖了诸如 GPS、GLONAS 以及未来即将问世的 Galileo 等不同的导航卫星系统，以及来自 GNSS 微波接收机的原始数据、经过处理或衍生的更高层次的产品，以及所需的辅助数据。基于 GZF GNSS 技术的项目成果被用作维护和研究地球自转行为以及全球大地测量参考框架的贡献，用于研究板块边界及其内部的构造运动过程，以及作为短期天气预报和大气/气候研究的基础。目前，GNSS 国际数据与服务中心仅提供诸如观测数据、导航数据（星历数据）、气象数据以及有限空间覆盖范围内的质量数据等精选产品。