Retrieval of refractivity fields from GNSS tropospheric delays: theoretical and data-based evaluation of collocation methods and comparisons with GNSS tomography [0.03%]
基于GNSS对流层延迟的折射率场反演：联合方法的理论和数据检验以及与GNSS层析的比较
Endrit Shehaj,Alain Geiger,Markus Rothacher et al.
Endrit Shehaj et al.
This paper focuses on the retrieval of refractivity fields from GNSS measurements by means of least-squares collocation. Collocation adjustment estimates parameters that relate delays and refractivity without relying on a grid. It contains ...
Gap filling between GRACE and GRACE-FO missions: assessment of interpolation techniques [0.03%]
GRACE和GRACE Follow-On任务间的插空：评估插值技术
Hugo Lecomte,Severine Rosat,Mioara Mandea
Hugo Lecomte
We propose a benchmark for comparing gap-filling techniques used on global time-variable gravity field time-series. The Gravity Recovery and Climate Experiment (GRACE) and the GRACE Follow-On missions provide products to study the Earth's t...
Improved GPS tropospheric path delay estimation using variable random walk process noise [0.03%]
基于随机游走过程噪声的改进型GPS对流层路径延迟估计方法
Zachary M Young,Geoffrey Blewitt,Corné Kreemer
Zachary M Young
Accurate positioning using the Global Positioning System relies on accurate modeling of tropospheric delay. Estimated tropospheric delay must vary sufficiently to capture true variations; otherwise, systematic errors propagate into estimate...
Bridging the gap between GRACE and GRACE Follow-On by combining high-low satellite-to-satellite tracking data and satellite laser ranging [0.03%]
结合高低轨卫星间测距和卫星激光测距数据联测弥补GRACE与GRACE FO资料间断性研究
Matthias Weigelt,Adrian Jäggi,Ulrich Meyer et al.
Matthias Weigelt et al.
The satellite missions GRACE and GRACE Follow-On have undoubtedly been the most important sources to observe mass transport on global scales. Within the Combination Service for Time-Variable Gravity Fields (COST-G), gravity field solutions ...
An improved equation of latitude and a global system of graticule distance coordinates [0.03%]
纬度改进计算公式及格网距坐标全球系统
Geoffrey Blewitt
Geoffrey Blewitt
Two innovations are presented for coordinate time-series computation. First, an improved solution is given to a century-old problem, that is the non-iterative computation of conventional geodetic (CG: latitude, longitude, height) coordinate...
Offsets in tide-gauge reference levels detected by satellite altimetry: ten case studies [0.03%]
基于卫星测高发现的潮位计基准发生变化的十个案列分析研究
R D Ray,M J Widlansky,A S Genz et al.
R D Ray et al.
Comparing measurements of absolute sea level by satellite altimetry and relative sea level by a tide gauge can reveal errors in either measurement system. Combining the measurements can determine vertical land motion (VLM) at the tide gauge...
GNSS visibility and performance implications for the GENESIS mission [0.03%]
适用于GENESIS任务的GNSS视界及性能影响研究
Oliver Montenbruck,Peter Steigenberger,Steffen Thoelert et al.
Oliver Montenbruck et al.
The GENESIS mission prepared for launch in 2027 integrates the four space-geodetic techniques on a single spaceborne platform in medium Earth orbit. With its unique observations and alternative tie concepts, the mission aims to contribute t...
Reprocessed precise science orbits and gravity field recovery for the entire GOCE mission [0.03%]
全寿命重力场探测卫星GOCE的精密定轨及重力场反演研究
Daniel Arnold,Thomas Grombein,Lucas Schreiter et al.
Daniel Arnold et al.
ESA's Gravity field and steady-state Ocean Circulation Explorer (GOCE) orbited the Earth between 2009 and 2013 for the determination of the static part of Earth's gravity field. The GPS-derived precise science orbits (PSOs) were operational...
The Generalized Method of Wavelet Moments with eXogenous inputs: a fast approach for the analysis of GNSS position time series [0.03%]
带有外源输入的波let矩法的推广方法：GNSS位置时间序列分析的快速方法
Davide A Cucci,Lionel Voirol,Gaël Kermarrec et al.
Davide A Cucci et al.
The global navigation satellite system (GNSS) daily position time series are often described as the sum of stochastic processes and geophysical signals which allow to study global and local geodynamical effects such as plate tectonics, eart...
Lucia McCallum,Lim Chin Chuan,Hana Krásná et al.
Lucia McCallum et al.
Global geodetic VLBI is upgrading to its next-generation observing system, VGOS. This upgrade has turned out to be a process over multiple years, until VGOS reaches its full capabilities with the envisaged continuous observations. Until the...