Nanosatellites deployed in vertical profile drive

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Spire Global has developed, tested and deployed a constellation of nanosatellites with high-quality global navigation satellite system (GNSS) receivers. Data from the satellites will provide high-quality measurements (vertical profiles) of atmospheric temperature, pressure and water vapor via GNSS-occultation. The new constellation involves eight satellites capable of producing a minimum of 1,000 profiles a day. Spire’s launch schedule aims to increase this to at least 100,000 profiles a day within two years, providing a daily vertical sounding of the atmosphere in each 100 x 100km square across the planet. The methodology uses publicly funded and publicly available research and development on GNSS radio occultation (GNSS-RO) carried out by various research groups, including that responsible for the ongoing Constellation Observing System for Meteorology, Ionosphere, and Climate (COSMIC) constellation. Spire’s data access models conform to the World Meteorological Organization’s (WMO) Resolution 40, which governs the provision of meteorological data. For example, the company’s “purchase once, distribute everywhere” license allows for unlimited worldwide redistribution, meaning that data is free at the point of use for public weather predictions. The satellites are manufactured in Glasgow, Scotland, UK, and can be built and launched within weeks due to their small size.

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Helen has worked for UKi Media & Events for more than a decade. She joined the company as assistant editor on Passenger Terminal World and has since progressed to become editor of five publications, covering everything from aviation, logistics and automotive to meteorology. She has a love for travel and property and has redeveloped three houses in three years. When she’s not editing magazines, she’s running around after her two boys and their partner in crime, Pete the pug.

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