A Novel Methodology for the Determination of Optimal Locations for the Establishment and Performance Assessment of Integrated GNSS CORS and SAR Corner Reflector Networks in the Advent of GGOS
Date Issued
April 2024
Author(s)
Advisor
Abstract
This doctoral thesis is intrinsically linked to the Cyprus Continuously Operating Natural
Hazards Monitoring and Prevention System, abbreviated CyCLOPS, a national strategic
research infrastructure devoted to systematically studying geohazards in Cyprus and the
EMMENA region. To date, the permanent segment of CyCLOPS is comprised by six
permanent sites, each housing a Tier-1 GNSS continuously operating reference stations
(CORS) co-located with two calibration-grade corner reflectors (CRs). The latter are
strategically positioned to account for both the ascending and descending tracks of SAR
satellite missions, including ESA's Sentinel-1.
The goal of CyCLOPS is to establish a reliable permanent station network across Cyprus,
featuring co-located GNSS and SAR CR configurations that continuous monitoring
geohazards. To fulfil this goal, it is essential to determine the most suitable sites for the
permanent installation of equipment, which guarantees the best performance of each
device that utilizes associated space-based technologies. Thus, a comprehensive
literature review was conducted to analyze such infrastructures, the required instruments
according to international standards, installation procedures, and the optimal spatial
distribution of stations to create an integrated nationwide network capable of providing
combined data of the two advanced space-based technologies, with maximum
performance and minimal error. Nonetheless, the review identified fragmented guidelines
regarding the co-location of SAR and GNSS permanent infrastructures. Furthermore, no
guidelines exist for the determination of the most suitable locations using a holistic
approach, in terms of criteria and required data.
Hazards Monitoring and Prevention System, abbreviated CyCLOPS, a national strategic
research infrastructure devoted to systematically studying geohazards in Cyprus and the
EMMENA region. To date, the permanent segment of CyCLOPS is comprised by six
permanent sites, each housing a Tier-1 GNSS continuously operating reference stations
(CORS) co-located with two calibration-grade corner reflectors (CRs). The latter are
strategically positioned to account for both the ascending and descending tracks of SAR
satellite missions, including ESA's Sentinel-1.
The goal of CyCLOPS is to establish a reliable permanent station network across Cyprus,
featuring co-located GNSS and SAR CR configurations that continuous monitoring
geohazards. To fulfil this goal, it is essential to determine the most suitable sites for the
permanent installation of equipment, which guarantees the best performance of each
device that utilizes associated space-based technologies. Thus, a comprehensive
literature review was conducted to analyze such infrastructures, the required instruments
according to international standards, installation procedures, and the optimal spatial
distribution of stations to create an integrated nationwide network capable of providing
combined data of the two advanced space-based technologies, with maximum
performance and minimal error. Nonetheless, the review identified fragmented guidelines
regarding the co-location of SAR and GNSS permanent infrastructures. Furthermore, no
guidelines exist for the determination of the most suitable locations using a holistic
approach, in terms of criteria and required data.
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