Search results for gnss

Astronomy Mar 26, 2024

SMOS and Swarm team up to spot huge solar storm

The sun erupted over the weekend, flinging electromagnetic radiation towards Earth, even illuminating skies with spectacular aurora borealis. For the first time, ESA's unlikely space weather duo of SMOS and Swarm tracked ...

Earth Sciences Mar 20, 2024

Detecting heavy precipitation events directly with GPS data

An exceptionally severe storm swept over Zurich on 13 July 2021 shortly before 2 a.m., with howling squalls, constant lightning and torrential rain that awakened people with a start.

Space Exploration Mar 1, 2024

Proba-3's laser-precise positioning

An infrared view of a laser-based test campaign—taking place at Redwire Space in Kruibeke, Belgium—which represents crucial preparation for ESA's precision formation flying mission, Proba-3.

Earth Sciences Feb 7, 2024

On Hawaii's Kilauea, little stresses add up

Hawaii's Kilauea volcano is one of the most active in the world. Its eruption in 2018 was its largest in 200 years and among the costliest volcanic disasters in U.S. history. Devastating as it was to the Hawaiian landscape, ...

Earth Sciences Feb 1, 2024

Rapid climate change may be causing Greenland's bedrock to rise, forming small islands

While much of the world is grappling with rising sea levels due to the melting of Greenland's ice sheet, the situation on the Greenlandic mainland is almost the opposite. The land is rising faster than the current sea level.

Earth Sciences Jan 25, 2024

New satellite capable of measuring Earth precipitation from space

Measuring the amount of precipitation that falls in a specific location is simple if that location has a device designed to accurately record and transmit precipitation data. In contrast, measuring the amount and type of ...

Planetary Sciences Jan 22, 2024

Study uncovers the non-isotropic nature of tropospheric delay for high-precision GNSS positioning

Global navigation satellite systems (GNSSs) provide invaluable positioning data for countless applications, from everyday navigation to scientific research. Tropospheric delays, caused by the refractive properties of the ...

Environment Jan 22, 2024

Study uncovers the dynamics of extreme climate events in Guangdong using satellite data

A study published in the journal Satellite Navigation, researchers from Southern University of Science and Technology harnessed high-resolution data from an extensive network of GNSS stations focusing on Guangdong province, ...

Earth Sciences Dec 14, 2023

Advanced GNSS technique enhances accuracy in landslide monitoring

In a study published on 13 November 2023, in the journal Satellite Navigation, researchers from Chang'an University have developed a novel approach using the Precise Point Positioning (PPP) technique combined with a cumulative ...

Environment Oct 27, 2023

New-generation RO constellation 'spire' challenges COSMIC-2 in atmospheric remote sensing

In a recent study, scientists from the Aerospace Information Research Institute (AIR) under the Chinese Academy of Sciences (CAS) investigated the performance of a commercial Global Navigation Satellite System (GNSS) Radio ...

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