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Advanced Remote Sensing Technology in Modern Geodesy

A special issue of Remote Sensing (ISSN 2072-4292). This special issue belongs to the section "Remote Sensing in Geology, Geomorphology and Hydrology".

Deadline for manuscript submissions: 15 August 2024 | Viewed by 564

Special Issue Editors


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Guest Editor
Faculty of Civil Engineering, Warsaw University of Technology, Armii Ludowej 16, 00-637 Warsaw, Poland
Interests: earth orientation parameters; gravimetric satellite missions; changes in climate models to polar motion study; terrestrial water storage changes; advanced remote sensing technology to geophysical studies

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Guest Editor
Centrum Badań Kosmicznych Polskiej Akademii Nauk, Bartycka 18A, 00-716 Warsaw, Poland
Interests: earth orientation parameters; gravimetric satellite missions; changes in climate models to polar motion study; terrestrial water storage changes; advanced remote sensing technology to geophysical studies
Special Issues, Collections and Topics in MDPI journals

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Guest Editor
Centrum Badań Kosmicznych Polskiej Akademii Nauk, Bartycka 18A, 00-716 Warsaw, Poland
Interests: mapping; geoinformation; digital mapping; spatial analysis; geospatial science; spatial statistics; geostatistical analysis; earth observation; geovisualization; geo-processing

Special Issue Information

Dear Colleagues,

Modern geodesy is a discipline dedicated to measuring and understanding the Earth’s shape, gravitational field, and rotation, and it stands at the crossroads of scientific inquiry and technological innovation. Geodesy has many applications in navigation, mapping, environmental monitoring, and geophysics. The evolution of technology, marked by enhanced sensors, advanced networks, and improved communication systems, coupled with the influence of nanotechnology, has significantly shaped the landscape of modern geodesy. Key technological advancements, including the utilization of cutting-edge tools such as Interferometric Synthetic Aperture Radar (InSAR), Light Detection and Ranging (LIDAR), and various remote sensing missions such as Gravity Recovery and Climate Experiment (GRACE), GRACE Follow-On, Gravity Field and Steady-State Ocean Circulation Explorer (GOCE), as well as upcoming satellite missions, are critical drivers for the development of the geodesy.

Modern geodesy and remote sensing data have proven to be instrumental in developing integrated Earth system models, mapping variations in Earth’s gravitational field, monitoring land deformation and subsidence, observing mass changes within ice caps, glaciers, and polar ice sheets, and contributing to the study and surveillance of natural hazards such as earthquakes, landslides, and volcanic activity. Furthermore, they enable the creation of high-resolution topographic maps, terrain models, detailed images, and data about the Earth’s surface.

This Special Issue aims to comprehensively explore the applications and advancements in cutting-edge remote sensing technology within the realm of modern geodesy. We emphasize the recent advances in assimilating different types of geodetic and geophysical data, high-precision topographic mapping, and terrain modeling. We especially welcome contributions focusing on integrating machine learning and artificial intelligence techniques in interpreting geospatial data, highlighting the recent progress in statistics applied to Earth’s dynamic system. Furthermore, we welcome topics that encompass multi-constellation systems of Global Navigation Satellite Systems (GNSSs) aimed at augmenting the availability and reliability of positioning information.

Authors are encouraged to submit original papers that include but are not limited to the following topics:

  • Advanced InSAR techniques for precise deformation monitoring, studying tectonic activity, subsidence, and landslides.
  • High-density LiDAR for improved topographic mapping and 3D terrain modeling.
  • Advances in GNSSs for accurate positioning and navigating, including real-time kinematic (RTK) and precise point positioning (PPP) techniques.
  • Integration of GNSS with other geodetic techniques for improved reference systems.
  • Data integration from sensors (optical, radar, LiDAR) for enhanced geodetic insights.
  • Geospatial data processing and cloud computing used for efficient storage and processing of large remote sensing datasets.
  • Remote sensing applications in climate change studies.
  • Determining and monitoring the Earth’s gravitational field.
  • Exploiting precise geodetic measurements of the Earth’s rotation and advanced algorithms to monitor and predict Earth orientation parameters (EOP).
  • Integrating data from satellite gravimetry and hydrological models for improved monitoring of water resources.

Dr. Małgorzata Wińska
Prof. Dr. Jolanta Nastula
Dr. Justyna Śliwińska-Bronowicz
Guest Editors

Manuscript Submission Information

Manuscripts should be submitted online at www.mdpi.com by registering and logging in to this website. Once you are registered, click here to go to the submission form. Manuscripts can be submitted until the deadline. All submissions that pass pre-check are peer-reviewed. Accepted papers will be published continuously in the journal (as soon as accepted) and will be listed together on the special issue website. Research articles, review articles as well as short communications are invited. For planned papers, a title and short abstract (about 100 words) can be sent to the Editorial Office for announcement on this website.

Submitted manuscripts should not have been published previously, nor be under consideration for publication elsewhere (except conference proceedings papers). All manuscripts are thoroughly refereed through a single-blind peer-review process. A guide for authors and other relevant information for submission of manuscripts is available on the Instructions for Authors page. Remote Sensing is an international peer-reviewed open access semimonthly journal published by MDPI.

Please visit the Instructions for Authors page before submitting a manuscript. The Article Processing Charge (APC) for publication in this open access journal is 2700 CHF (Swiss Francs). Submitted papers should be well formatted and use good English. Authors may use MDPI's English editing service prior to publication or during author revisions.

Keywords

  • remote sensing techniques
  • GNSS positioning
  • InSAR techniques
  • LiDAR for topographic mapping
  • measuring the Earth’s shape
  • measuring Earth’s gravitational field
  • measuring Earth’s rotation

Published Papers (1 paper)

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Research

25 pages, 30172 KiB  
Article
Comprehensive Analysis on GPS Carrier Phase under Various Cutoff Elevation Angles and Its Impact on Station Coordinates’ Repeatability
by Sorin Nistor, Norbert-Szabolcs Suba, Aurelian Stelian Buda, Kamil Maciuk and Ahmed El-Mowafy
Remote Sens. 2024, 16(10), 1691; https://doi.org/10.3390/rs16101691 - 9 May 2024
Viewed by 435
Abstract
When processing the carrier phase, the global navigation satellite system (GNSS) grants the highest precision for geodetic measurements. The analysis centers (ACs) from the International GNSS Service (IGS) provide different data such as precise clock data, precise orbits, reference frame, ionosphere and troposphere [...] Read more.
When processing the carrier phase, the global navigation satellite system (GNSS) grants the highest precision for geodetic measurements. The analysis centers (ACs) from the International GNSS Service (IGS) provide different data such as precise clock data, precise orbits, reference frame, ionosphere and troposphere data, as well as other geodetic products. Each individual AC has its own strategy for delivering the abovementioned products, with one of the key elements being the cutoff elevation angle. Typically, this angle is arbitrarily chosen using generic values without studying the impact of this choice on the obtained results, in particular when very precise positions are considered. This article addresses this issue. To this end, the article has two key sections, and the first is to evaluate the impact of using the two different cutoff elevation angles that are most widely used: (a) 3 degrees cutoff and (b) 10 degrees cutoff elevation angle. This analysis is completed in two major parts: (i) the analysis of the root mean square (RMS) for the carrier phase and (ii) the analysis of the station position in terms of repeatability. The second key section of the paper is a comprehensive carrier phase analysis conducted by adopting a new approach using a mean of the 25-point average RMS (A-RMS) and the single-point RMS and using an ionosphere-free linear combination. By using the ratio between the 25-point average RMS and the single-point RMS we can define the type of scatter that dominates the phase solution. The analyzed data span a one-year period. The tested GNSS stations belong to the EUREF Permanent Network (EPN) and the International GNSS Service (IGS). These comprise 55 GNSS stations, of which only 23 GNSS stations had more than 95% data availability for the entire year. The RMS and A-RMS are analyzed in conjunction with the precipitable water vapor (PWV), which shows clear signs of temporal correlation. Of the 23 GNSS stations, three stations show an increase of around 50% of the phase RMS when using a 3° cutoff elevation angle, and only four stations have a difference of 5% between the phase RMS when using both cutoff elevation angles. When using the A-RMS, there is an average improvement of 37% of the phase scatter for the 10° cutoff elevation angle, whereas for the 3° cutoff elevation angle, the improvement is around 33%. Based on studying this ratio, four stations indicate that the scatter is dominated by the stronger-than-usual dominance of long-period variations, whereas the others show short-term noise. In terms of station position repeatability, the weighted root mean square (WRMS) is used as an indicator, and the results between the differences of using a 3° and 10° cutoff elevation angle strategy show a difference of −0.16 mm for the North component, −0.21 mm for the East component and a value of −0.75 mm for the Up component, indicating the importance of using optimal cutoff angles. Full article
(This article belongs to the Special Issue Advanced Remote Sensing Technology in Modern Geodesy)
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