Initial Atmosphere and Ionosphere Results from PlanetiQ's First GNSS RO Satellite
Abstract
PlanetiQ has been developing an entirely new GNSS radio occultation (RO) system. Our first GNOMES satellite is scheduled to launch in August 2020, following several months of COVID-19 related launch delays. The GNSS RO receivers will acquire atmosphere and ionosphere profiles for weather, space weather and climate analysis and forecasting applications and research. Each receiver tracks the 4 GNSS constellations, GPS, GLONASS, Galileo and BeiDou, acquiring as many as 2700 occultations per day, once the GNSS constellations are fully populated.
The GNSS RO receiver-antenna system is designed to meet or exceed COSMIC-2 performance specifications including 2000 v/v signal to noise ratios that enable detection of super-refraction and routine profiling down to the surface through the planetary boundary layer, across the entire globe, a key objective established by the 2018 National Academies Decadal Survey. It will also acquire high rate ionosphere scintillation measurements up to at least 500 km altitude. Each receiver's capabilities and performance will be improved on orbit as signal processing upgrades and refinements are made utilizing the receiver's full programmability on orbit. The second GNOMES satellite is scheduled to launch in December and the global coverage provided by the first two satellites will be comparable to that of COSMIC-2B. Within 3 years, the constellation will consist of approximately 20 satellites producing 50,000 occultations per day, 12,500 occultations per 6 hour NWP cycle and 2000 occultations every hour, equivalent to COSMIC's 24 hour sampling, with full global and diurnal coverage. The number of satellites can be increased further if still denser spatio-temporal sampling is desired. We are presently evaluating the addition of PAZ-style dual polarization precipitation measurements and surface reflections and will be adding an ATOMMS LEO to LEO occultation capability as well. We will present initial atmosphere and ionosphere results from the GNOMES-1 spacecraft at the conference.- Publication:
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AGU Fall Meeting Abstracts
- Pub Date:
- December 2020
- Bibcode:
- 2020AGUFMIN029..05K
- Keywords:
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- 1918 Decision analysis;
- INFORMATICS;
- 1942 Machine learning;
- INFORMATICS;
- 4301 Atmospheric;
- NATURAL HAZARDS;
- 4335 Disaster management;
- NATURAL HAZARDS