Results 21 to 30 of about 166,488 (254)

Machine Learning-Based Estimation of Hourly GNSS Precipitable Water Vapour

open access: yesRemote Sensing, 2023
Water vapour plays a key role in long-term climate studies and short-term weather forecasting. Therefore, to understand atmospheric variations, it is crucial to observe water vapour and its spatial distribution.
Zohreh Adavi   +3 more
doaj   +1 more source

A Regional Model for Predicting Tropospheric Delay and Weighted Mean Temperature in China Based on GRAPES_MESO Forecasting Products

open access: yesRemote Sensing, 2021
Accurate tropospheric delay (TD) and weighted mean temperature (Tm) are important for Global Navigation Satellite System (GNSS) positioning and GNSS meteorology.
Liying Cao   +6 more
doaj   +1 more source

Determination of Weighted Mean Temperature (Tm) Lapse Rate and Assessment of Its Impact on Tm Calculation

open access: yesIEEE Access, 2019
In Global Navigation Satellite System (GNSS) meteorology, improved understanding of weighted mean temperature (Tm) variation and estimation is imperative because Tm is crucial to the quantification of precipitable water, which is an important parameter ...
Fei Yang   +5 more
doaj   +1 more source

Region-Specific and Weather-Dependent Characteristics of the Relation between GNSS-Weighted Mean Temperature and Surface Temperature over China

open access: yesRemote Sensing, 2023
Weighted mean temperature of the atmosphere, Tm, is a key parameter for retrieving the precipitable water vapor from Global Navigation Satellite System observations.
Minghua Wang   +7 more
doaj   +1 more source

Modelling and validation of the weighted mean temperature for Turkey

open access: yesMeteorological Applications, 2016
ABSTRACTWater vapour is involved in many atmospheric processes. Precipitation specifically relies on the amount of precipitable water vapour (PWV) or the water vapour content suspended in the atmosphere.Opportunities with regard to the conversion of existing continuous Global Navigation Satellite System (GNSS) stations to GNSS meteorology stations ...
Mekik, Cetin, Deniz, Ilke
openaire   +3 more sources

Weighted Mean Temperature Modelling Using Regional Radiosonde Observations for the Yangtze River Delta Region in China

open access: yesRemote Sensing, 2022
Precipitable water vapor can be estimated from the Global Navigation Satellite System (GNSS) signal’s zenith wet delay (ZWD) by multiplying a conversion factor, which is a function of weighted mean temperature (Tm) over the GNSS station.
Li Li, Yuan Li, Qimin He, Xiaoming Wang
doaj   +1 more source

Anomalous Zenith Total Delays for an Insular Tropical Location: The Tahiti Island Case

open access: yesRemote Sensing, 2022
The weighted mean temperature of the troposphere, Tm, is a key parameter in GNSS meteorology. It can be routinely derived based on meteorological data from radiosonde (RS) or numerical weather models. Alternatively, it can be also derived through a least-
Fangzhao Zhang   +3 more
doaj   +1 more source

A new voxel-based model for the determination of atmospheric weighted mean temperature in GPS atmospheric sounding [PDF]

open access: yesAtmospheric Measurement Techniques, 2017
The Global Positioning System (GPS) is a powerful atmospheric observing system for determining precipitable water vapour (PWV). In the detection of PWV using GPS, the atmospheric weighted mean temperature (Tm) is a crucial parameter for the ...
C. He   +7 more
doaj   +1 more source

Study on Sub-Regional Weighted Mean Atmospheric Temperature Modeling and Its Application in China

open access: yesRenmin Zhujiang, 2022
With the daily average surface temperature data from 1980 to 2010 provided by the China Meteorology Data Service Center and 64,131 observations in 2015 from 90 sounding stations,we firstly use the diffusion interpolation with barriers for interpolation ...
GAO Deheng, ZHANG Wei, SHEN Qinghua
doaj  

Fundamental Study of Weighting Factors for Calculating Mean Skin Temperature

open access: yesJournal of the Human-Environment System, 2006
It was proposed to calculate a formula for mean skin temperature weighted with both the heat transfer coefficient and skin surface area ratios. Calculating the mean skin temperature based on the heat balance equation between the human body and the environment yielded the formula with the weighting factor including not only the skin surface area ratio ...
Kouhei Kuwabara   +3 more
openaire   +2 more sources

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