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Article
Determining the optimal thin layer height for single-station ionospheric modeling and its influence on the estimation of DCB
The thin layer ionospheric height (TLIH) is a crucial parameter of the map** function (MF), directly impacting the accuracy of converting slant total electron content (TEC) to vertical TEC. Due to the comple...
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Article
The variation in basal channels and basal melt rates of Pine Island Ice Shelf
In recent years, there has been a significant acceleration in the thinning, calving and retreat of the Pine Island Ice Shelf (PIIS). The basal channels, results of enhanced basal melting, have the potential to...
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Article
Temporal and spatial changes of the basal channel of the Getz Ice Shelf in Antarctica derived from multi-source data
Basal melting is an important factor affecting the stability of the ice shelf. The basal channel is formed from uneven melting, which also has an important impact on the stability of the ice shelf. Therefore, ...
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Article
Estimation and Long-term Trend Analysis of Surface Solar Radiation in Antarctica: A Case Study of Zhongshan Station
Long-term, ground-based daily global solar radiation (DGSR) at Zhongshan Station in Antarctica can quantitatively reveal the basic characteristics of Earth’s surface radiation balance and validate satellite da...
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Article
Evaluation of vertical crustal movements and sea level changes around Greenland from GPS and tide gauge observations
To better monitor the vertical crustal movements and sea level changes around Greenland, multiple data sources were used in this paper, including global positioning system (GPS), tide gauge, satellite gravimet...
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Article
Quantitative analysis of Arctic ice flow acceleration with increasing temperature
This study explores the ice flow acceleration (21.1%) of Pedersenbreen during 2016–2017 after the extremely warm winter throughout the whole Arctic in 2015/2016 using in situ data and quantitatively analyses the ...
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Article
Time-Series Analysis of Subsidence in Nanning, China, Based on Sentinel-1A Data by the SBAS InSAR Method
Recent research has demonstrated that the Sentinel-1 constellation can be used for continuous tracking of ground deformation phenomena. In this study, the spatial–temporal subsidence characteristics in Nanning...
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Article
Assessment of spatial and temporal TEC variations derived from ionospheric models over the polar regions
A comprehensive evaluation of Global Positioning System (GPS) Klobuchar, Galileo broadcast NeQuick2, international reference ionosphere (IRI) and global ionospheric map (GIM) models in estimating ionospheric t...
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Article
Influence of spatial gradients on ionospheric map** using thin layer models
This study provides information about the influence of various ionospheric spatial gradients on the thin layer ionospheric model (TLIM). Particular attention is paid to the errors caused by the slant total ele...
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Article
GPS differential code biases considering the second-order ionospheric term
Differential code biases (DCBs) of the global positioning system (GPS) are generally estimated together with total electron content (TEC) along the signal transmission path through the ionosphere. However, bet...
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Article
Temporal and spatial variations of global ionospheric total electron content under various solar conditions
By utilizing the numerical technique of principal component analysis (PCA), this work analyses temporal and spatial variations of the ionosphere under various solar conditions during the period 1999–2013. Appl...
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Article
Co-seismic deformation derived from GPS observations during April 20th, 2013 Lushan Earthquake, Sichuan, China
We process the standard 30 s, static GPS data and the 1 s, high-rate GPS (HRGPS) data provided by the Crustal Movement Observation Network of China with GAMIT/GLOBK software package, and obtain the co-seismic ...
