A GPS network for tropospheric tomography in the framework of the Mediterranean hydrometeorological observatory Cévennes-Vivarais (south-eastern France) [PDF]
, 2014 International audienceThe Mediterranean hydrometeorological observatory Cévennes-Vivarais (OHM-CV) coordinates hydrometeorological observations (radars, rain gauges, water level stations) on a regional scale in southeastern France.
Brenot, Hugues +9 more
core +4 more sources
Remote Sensing, 2020 Global navigation satellite systems (GNSSs) have become an important tool to derive atmospheric products, such as the total zenith tropospheric delay (ZTD) and precipitable water vapor (PWV) for weather and climate studies.
Jinglei Zhang +7 more
doaj +1 more source
GPS tomography: validation of reconstructed 3-D humidity fields with radiosonde profiles [PDF]
Annales Geophysicae, 2013 Water vapor plays an important role in meteorological applications; GeoForschungsZentrum (GFZ) therefore developed a tomographic system to derive 3-D distributions of the tropospheric water vapor above Germany using GPS data from about 300 ground ...
M. Shangguan +6 more
doaj +1 more source
Precipitable Water Vapour and Zenith Total Delay time series and models over Slovakia and vicinity
Contributions to Geophysics and Geodesy, 2010 More than 50 permanent GNSS (Global Navigation Satellite Systems) stations are processed continually within the Central European Permanent Network. Zenith Total Delay (ZTD), one of the processing outputs, reflects a delay of the GNSS signal caused by ...
Miroslava IGONDOVÁ, Dušan CIBULKA
doaj +1 more source
Investigating tropospheric effects and seasonal position variations in GPS and DORIS time-series from the Nepal Himalaya [PDF]
, 2009 Geodetic time-series from continuous GPS (cGPS) and 1 DORIS stations across the Himalaya of central Nepal show strong seasonal fluctuations observed on the horizontal and vertical components.
Avouac, Jean-Philippe +5 more
core +3 more sources
Preliminary Results on Tropospheric ZTD Estimation by Smartphone
Remote Sensing, 2021 The Global Navigation Satellite System (GNSS) receiver is one of the many sensors embedded in smartphones. The early versions of the Android operating system could only access limited information from the GNSS, allowing the related Application Program ...
Lorenzo Benvenuto +3 more
doaj +1 more source
Mesoscale GPS Zenith Delay assimilation during a Mediterranean heavy precipitation event [PDF]
Advances in Geosciences, 2008 The impact of assimilating Zenith Total delay (ZTD) observations from a mesoscale ground-based GPS network over Western Europe is evaluated for the heavy precipitation event of 5–9 September 2005 over Southern France.
X. Yan +4 more
doaj
Comparison of GPS tropospheric delays derived from two consecutive EPN reprocessing campaigns from the point of view of climate monitoring [PDF]
Atmospheric Measurement Techniques, 2016 The main purpose of this research was to acquire information about consistency of ZTD (zenith total delay) linear trends and seasonal components between two consecutive GPS reprocessing campaigns.
Z. Baldysz +4 more
doaj +1 more source
Kinematic ZTD Estimation from Train-Borne Single-Frequency GNSS: Validation and Assimilation
Remote Sensing, 2021 Water vapour is one of the most important parameters utilized for the description of state and evolution of the Earth’s atmosphere. It is the most effective greenhouse gas and shows high variability, both in space and time.
Matthias Aichinger-Rosenberger +2 more
doaj +1 more source
A New Global ZTD Forecast Model Based on Improved LSTM Neural Network
IEEE Journal of Selected Topics in Applied Earth Observations and Remote SensingZenith tropospheric delay (ZTD), consisting of zenith hydrostatic delay (ZHD) and zenith wet delay (ZWD), is a significant contributor to errors in precise positioning using the global navigation satellite system (GNSS) precise point positioning (PPP ...
Lin He +7 more
doaj +1 more source