研究区域网格划分:纬度范围为22.16°N-22.52°N,经度范围为113.90°E-114.35°E,经纬度网格密度为8×8均匀划分;垂直方向上由探空信息拟合函数计算得到8000 m高度(DOY 129-DOY 135)PWV比例因子均值为0.982,最小值为0.973,8000 m高度...
εε技术:降低星历精度(加入随机变化) δδ技术:卫星钟加高频抖动,短周期快变化。 SA技术于2000年5月2日4时终止实施。 IGS分析中心: IGS 目前共有 12 个分析中心,它们是: (1) CODE:瑞士伯尼尔大学的欧洲定轨中心; (2) ESA/ESOC:欧洲航天局地面控制中心; (3) NGS:美国国家海洋与大气管理局; (4) USNO...
被引量: 4发表: 2013年 利用多GNSS分析澳大利亚极端降雨水汽变化 差产品/最终产品,计算2017年澳洲一次极端降雨过程中测站上空的天顶对流层延迟(ZTD)和大气可降水含量(PWV).结果表明:多系统GNSS联合解算的ZTD与国际GNSS服务(IGS)... 刘怡兵,周凌昊,范磊 - 《导航定位学报》 被引量: 0发表: 2024年 加载更多研究...
Matlab代码 GNSS-ZTD 相结合以得出 GNSS-PWV。.zip Matlab代码 GNSS-ZTD 相结合以得出 GNSS-PWV。.zip 上传者:m0_60703264时间:2024-06-02 exp4.zip_GNSS_eul2dcm_ins gnss_ins gps_vehicle SATELLITE 把激光陀螺捷联惯导系统和GNSS接收机固联于实验车实验仓中,接收机天线固联在实验车实验仓上方,车载计算机实...
The performance of multi-GNSS data for ZTD/PWV retrieval is also assessed and the accuracy is verified by CODE tropospheric products and Radiosonde observations. The statistical results show that: (1) There are significant differences in the PPP ZTD results obtained by different navigation systems, ...
Thanks to continuously operational GNSS, long-term PWV trends can be acquired globally, at a high frequency, allowing changes in the hydrological cycle, atmospheric radiation, and climate to be studied. The use of GNSS-derived PWV for atmospheric studies is now a well-established field of ...
While the use of the GNSS-ZTD and GNSS-PWV has been usually oriented to applications such as the study of extreme precipitation events or its integration in Numerical Weather Prediction models, there is very little literature exploring the potential of this variable for drought monitoring (Bordi ...
GNSS对流层水汽反演技术具有连续运行、全天候、高精度、高时空分辨率等优点,且测站布设成本低,投入使用快,可实现大范围高密度的实时水汽监测,该技术的出现是传统水汽探测技术的强有力补充,它不仅可以得到对流层中大气可降水量(precipitable water vapor, PWV)的二维空间分布,也可以通过层析成像技术(tomography technique)...
GNSS对流层水汽反演技术具有连续运行、全天候、高精度、高时空分辨率等优点,且测站布设成本低,投入使用快,可实现大范围高密度的实时水汽监测,该技术的出现是传统水汽探测技术的强有力补充,它不仅可以得到对流层中大气可降水量(precipitable water vapor, PWV)的二维空间分布,也可以通过层析成像技术(tomography technique)...
Furthermore, the daily and monthly average values, long-term trend, and change characteristics of the PWV were analyzed, using the high-precision inversion model. The results showed that the averaged PWV was higher in Central–Eastern China and Southern China and lower in Northwest China, ...