Global Geodetic Observing System: The Reference for Earth System Monitoring and featuring VLBI component
Convener:
Kosuke Heki
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Co-conveners:
Martin Sehnal,
Allison Craddock,
Esther Azcue,
Anastasiia Walenta,
Minghui Xu,
Aletha de Witt
Orals
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Mon, 15 Apr, 14:00–15:45 (CEST) Room G2
Posters on site
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Attendance Tue, 16 Apr, 16:15–18:00 (CEST) | Display Tue, 16 Apr, 14:00–18:00 Hall X2
Posters virtual
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Attendance Tue, 16 Apr, 14:00–15:45 (CEST) | Display Tue, 16 Apr, 08:30–18:00 vHall X2
Very Long Baseline Interferometry (VLBI) is a key contributor to the GGOS, primarily through the development and role-out of the VLBI Global Observing System (VGOS) by the International VLBI Service for Geodesy and Astronomy (IVS). VLBI stands apart as the sole method with the capability to establish and sustain the International Celestial Reference Frame (ICRF). The ICRF3 was constructed using VLBI data at the standard S/X frequencies, along with observations at K-band and X/Ka-band, making it the first multi-frequency frame. The backward compatibility with the running legacy VLBI network is to be considered as a tool to bridge nearly 40 years of legacy and last 4 years of VGOS observations. VGOS antennas were designed with two aims: to increase the measurement precision, from a cm-level to the GGOS goal of 1 mm; to increase the observational cadence, from 2-3 sessions per week to continuous observations. In this session we explicitly seek contributions to revisit the original goals and map the future VLBI contribution to GGOS. Besides this, we welcome the contributions dedicated to the satellite tracking with the fast VGOS antennas, an approach that promises to enhance and homogenize the reference frame determination.
14:00–14:05
Introduction
GGOS-General
14:25–14:35
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EGU24-14602
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Highlight
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On-site presentation
14:35–14:45
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EGU24-10584
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On-site presentation
14:55–15:05
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EGU24-19106
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Highlight
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On-site presentation
GGOS-Very long baseline interferometry
15:05–15:15
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EGU24-3287
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ECS
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On-site presentation
15:35–15:45
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EGU24-15350
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ECS
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On-site presentation
X2.14
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EGU24-1314
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Highlight
X2.17
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EGU24-584
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ECS
vX2.3
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EGU24-15420
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ECS