GPS measurement, as a methodological term, refers to the use of Global Positioning System receivers and associated processing techniques to determine the spatial position, velocity, and sometimes timing of an object or observation point relative to a defined reference frame (typically WGS84 or ITRF). Methodological considerations include signal acquisition from multiple satellites, dilution of precision, error sources (ionospheric and tropospheric delays, multipath, clock and ephemeris errors), and correction strategies such as differential GPS (DGPS), real-time kinematic (RTK), and post-processed kinematic (PPK). GPS measurement methods are widely integrated into geodesy, geophysics, navigation, and field data collection protocols for high-precision spatial analysis.
Global navigation satellite systems (GNSS), which include GPS, are traditionally used for positioning, timing, and mapping information. In an open-access study published Feb. 27 in Geophysical Research Letters, MIT Haystack ...
Earth Sciences
Mar 24, 2026
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A new data visualization illustrates how an experimental NASA technology can provide extra lead time to communities in the path of a tsunami. Called GUARDIAN (GNSS Upper Atmospheric Real-time Disaster Information and Alert ...
Earth Sciences
Mar 23, 2026
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SpaceX is set to launch its latest national security mission, yet another GPS satellite that was originally to have been launched by United Launch Alliance.
Space Exploration
Jan 27, 2026
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27
Ask someone on Earth for the time and they can give you an exact answer, thanks to our planet's intricate timekeeping system, built with atomic clocks, GPS satellites and high-speed telecommunications networks.
Astronomy
Dec 1, 2025
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Could global positioning systems become more precise and provide more accurate details on distances for users to get from point A to point B?
Quantum Physics
Oct 28, 2025
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82
Bacteria have long been a key source of lifesaving antibiotics, but most species cannot be grown in the lab—leaving their therapeutic potential untapped even as multidrug resistance becomes an increasingly urgent threat.
Cell & Microbiology
Sep 14, 2025
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218
In astronomy, larger distances are both a blessing and a curse. They can cause issues like longer communication times, which also requires more powerful equipment, and positioning uncertainty that can affect the outcomes ...
Planetary Sciences
Jul 30, 2025
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27
Optical quantum clocks developed at the University of Adelaide have been proven to outperform GPS navigation systems by many orders of magnitude. The clocks, which were put through their paces in naval exercises, were designed ...
Optics & Photonics
Jul 8, 2025
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269
The scientists who precisely measure the position of Earth are in a bit of trouble. Their measurements are essential for the satellites we use for navigation, communication and Earth observation every day.
Astronomy
Jun 30, 2025
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Earthquakes create ripple effects in Earth's upper atmosphere that can disrupt satellite communications and navigation systems we rely on. Nagoya University scientists and their collaborators have used Japan's extensive network ...
Earth Sciences
May 29, 2025
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