Atmospheric Rivers in Africa Observed with GNSS-RO and Reanalysis Data [PDF]
Remote SensingAtmospheric Rivers (ARs) transport significant amounts of moisture and cause extreme precipitation events, yet their behavior over Africa is not well understood. This study addresses this gap by analyzing the occurrence, seasonal variability, and spatial
Linda Martina Maier +2 more
doaj +3 more sources
Global GNSS-RO Electron Density in the Lower Ionosphere
Remote Sensing, 2022 Lack of instrument sensitivity to low electron density (Ne) concentration makes it difficult to measure sharp Ne vertical gradients (four orders of magnitude over 30 km) in the D/E-region.
Dong L. Wu +2 more
doaj +4 more sources
Stratospheric gravity waves in a post-limb sounder era: can GNSS-RO be used to extend the SABER QBO-driving record? [PDF]
Atmospheric Measurement TechniquesThe quasi-biennial oscillation (QBO) is a slowly repeating cycle of winds which dominates tropical lower-stratospheric dynamics and has been described as the “heartbeat of the stratosphere”. However, it is challenging to represent in weather and climate
M. Almowafy +3 more
doaj +4 more sources
Using the Commercial GNSS RO Spire Data in the Neutral Atmosphere for Climate and Weather Prediction Studies [PDF]
Remote Sensing, 2023 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 +2 more sources
Joint 1DVar retrievals of tropospheric temperature and water vapor from Global Navigation Satellite System radio occultation (GNSS-RO) and microwave radiometer observations [PDF]
Atmospheric Measurement TechniquesGlobal Navigation Satellite System radio occultation (GNSS-RO) and microwave radiometry (MWR) are two of the most impactful spaceborne remote sensing techniques for numerical weather prediction (NWP).
K.-N. Wang +6 more
doaj +2 more sources
Efficient collocation of global navigation satellite system radio occultation soundings with passive nadir microwave soundings [PDF]
Atmospheric Measurement Techniques, 2023 Radio occultation (RO) using the global navigation satellite system (GNSS) can be used to infer atmospheric profiles of microwave refractivity in the Earth's atmosphere.
A. Meredith +3 more
doaj +1 more source
Remote Sensing, 2023 The global navigation satellite system radio occultation (GNSS-RO) is an important means of space-based meteorological observation. It is necessary to test the Global Navigation Satellite System Occultation signal receiver on the ground before the ...
Wei Li +9 more
doaj +1 more source
Atmosphere, 2022 The development of global navigation satellite systems (GNSSs) and multi-system compatible radio occultation (RO) techniques provides favorable conditions and opportunities for increasing the number of occultation events and improving their ...
Congliang Liu +6 more
doaj +1 more source
Commercial GNSS Radio Occultation on Aerial Platforms With Off-The-Shelf Receivers
Navigation, 2022 In recent decades, GNSS radio occultation (RO) soundings have proven to be an invaluable input to global weather forecasting. The success of government programs such as COSMIC is now complemented by commercial low-cost cubesats.
Bryan C. Chan +10 more
doaj +1 more source
Planetary boundary layer height retrieval using GNSS Radio Occultation over Egypt
Egyptian Journal of Remote Sensing and Space Sciences, 2022 Global Navigation Satellite System (GNSS) Radio Occultation (RO) is an excellent remote sensing technique for sounding the atmosphere. GNSS satellites send signals through the atmosphere of the Earth, and a GNSS receiver mounted on a Low Earth Orbit (LEO)
Mohamed Zhran, Ashraf Mousa
doaj +1 more source