Results 41 to 50 of about 424 (165)
The global navigation satellite system (GNSS) radio occultation (RO) is becoming an essential component of National Oceanic and Atmospheric Administration (NOAA) observation systems.
Shu-peng Ho +4 more
doaj +1 more source
ABSTRACT Time‐correlated single‐photon counting (TCSPC) lidar enables high‐resolution 3D imaging at kilometer range. While previous works have covered long range TCSPC 3D imaging from either stationary or airborne platforms, this is, to the best of our knowledge, the first attempt that use a moving ground vehicle. Fusing measurements taken at different
Hannes Ovrén +2 more
wiley +1 more source
Global Navigation Satellite System (GNSS) Radio Occultation (RO) is a highly valuable remote sensing technique for probing the Earth’s atmosphere, due to its global coverage, high accuracy, long-term stability, and essentially all-weather capability.
Josef Innerkofler +6 more
doaj +1 more source
The FengYun-3E Global Navigation Satellite System (GNSS) occultation sounder II (FY-3E GNOS II) was launched on 5 July 2021. For the first time, based on the new GNOS II sensor, this mission realizes radio occultation (RO) and reflectometry observations ...
Congliang Liu +22 more
doaj +1 more source
Abstract Wind approximations, such as geostrophic and gradient wind, are limited in their ability to accurately represent atmospheric conditions in the presence of significant planetary wave activity. Those approximations, while widely applied in synoptic‐scale wind field estimation, fail to capture the full complexity of atmospheric dynamics under ...
Johannes Unegg, I. Nimac, J. Danzer
wiley +1 more source
The potential of observing atmospheric rivers with Global Navigation Satellite System (GNSS) radio occultation [PDF]
Atmospheric rivers (ARs) are comparatively narrow regions in the atmosphere that are responsible for most of the horizontal transport of water vapor in the extratropics, which are responsible for many extreme precipitation events and flooding at ...
B. Rahimi, U. Foelsche, U. Foelsche
doaj +1 more source
Recently, the NOAA has included GNSS (Global Navigation Satellite System) Radio Occultation (RO) data as one of the crucial long-term observables for weather and climate applications.
Shu-peng Ho +5 more
doaj +1 more source
Besides providing electron density profiles (EDP), GNSS Radio Occultation (GNSS-RO) measurements allow monitoring the frequency and the areas where ionospheric scintillations occur. In this work, RO measurements composing an experimental data set are processed with the back propagation (BP) method to estimate the location of sporadic E-clouds and ...
Ludwig Barbosa, Vinícius +5 more
openaire +2 more sources
Global Bottomside Ionospheric Modeling Based on GNSS‐RO Observations From the Tianmu‐1 Constellation
Abstract Radio occultation (RO) observations provide a crucial means for estimating the global Vertical Bottomside Electron Content (VBEC) in the ionosphere. However, the limited number of low Earth orbit (LEO) satellites in existing RO missions restricts the capability for high‐precision reconstruction of global VBEC spatiotemporal variations.
Linghuo Jian +4 more
wiley +1 more source
Radio occultation (RO) measurements performed by Global Navigation Satellite System (GNSS) receivers onboard low-earth orbit (LEO) satellites are commonly used for a variety of atmospheric applications, including ionospheric and space weather studies. We
Mohanty Shradha +2 more
doaj +1 more source

