Results 21 to 30 of about 8,496,062 (195)
The magnitudes and timescales of global mean surface temperature feedbacks in climate models [PDF]
, 2011 Because of the fundamental role feedbacks play in determining the response of surface temperature to perturbations in radiative forcing, it is important we understand the dynamic characteristics of these feedbacks.
Jarvis, Andrew
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Estimating mean weighted temperature of the atmosphere for Global Positioning System applications [PDF]
Journal of Geophysical Research: Atmospheres, 1997 A water‐vapor‐weighted vertically averaged mean temperature of the atmosphere, Tm, is a key parameter in the retrieval of total water content from the measurements of Global Positioning System signal delays. The accuracy of precipitable water estimates is proportional to the accuracy of Tm.
Rebecca J. Ross, Simon Rosenfeld
openaire +1 more source
CONSTRUCTION OF REGIONAL WEIGHTED MEAN TEMPERATURE MODEL BASED ON OPTIMIZATION BP NEURAL NETWORK [PDF]
The International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2020 The tropospheric weighted mean temperature (Tm) is one of the key characteristic parameters in the troposphere, which plays an important role in the conversion of Zenith Wet Delay (ZWD) to atmospheric Precipitable Water Vapor (PWV).
Z. X. Chen +10 more
doaj +1 more source
Satellite Navigation, 2021 Precipitable Water Vapor (PWV), as an important indicator of atmospheric water vapor, can be derived from Global Navigation Satellite System (GNSS) observations with the advantages of high precision and all-weather capacity.
Liangke Huang +6 more
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A Global Conversion Factor Model for Mapping Zenith Total Delay onto Precipitable Water
Remote Sensing, 2022 The conversion factor is a key parameter for converting zenith wet delays (ZWD) into precipitable water vapour (PWV) with a mean value of 0.15, and the traditional method of calculating it is to model the weighted average temperature in the process of ...
Qingzhi Zhao +8 more
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Modeling of the weighted mean temperature based on the random forest machine learning approach [PDF]
, 2023 Atmospheric weighted mean temperature, Tm, is an important parameter in the Earth’s atmospheric water vapor sounding with the Global Navigation Satellite System (GNSS) technique.
Böhm, Johannes; orcid: +3 more
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Meteorological Applications, 2020 The important role of a humidity conversion factor in mapping the zenith wet delay (ZWD) onto precipitable water vapour (PWV) makes it a vital parameter in Global Navigation Satellite System (GNSS) meteorology.
Pengfei Xia +4 more
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, 2000 In this article, by mathematical induction and properties of the generalized weighted mean values, some general Steffensen pairs are ...
Qi, Feng, Guo, Bai-Ni
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Global annual methane emission rate derived from its current atmospheric mixing ratio and estimated lifetime [PDF]
Annales Geophysicae, 2014 We use the estimated lifetime of methane (CH4), the current methane concentration, and its annual growth rate to calculate the global methane emission rate.
G. R. Sonnemann +2 more
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Satellite Navigation, 2023 Tropospheric delay is a major error caused by atmospheric refraction in Global Navigation Satellite System (GNSS) positioning. The study evaluates the potential of the European Centre for Medium-range Weather Forecast (ECMWF) Reanalysis 5 (ERA5 ...
Ifechukwu Ugochukwu Nzelibe +2 more
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