Modelling Tropospheric Delays Using the Global Surface Meteorological Parameter Model GPT2

Role of meteorological variability in global tropospheric ozone during 19702008

[1] Interannual variation in global tropospheric ozone associated with meteorological variability is characterized in this study using a global chemical transport model CHASER. We focus on five meteorological variability: El Niño Southern Oscillation (ENSO), Indian Ocean Dipole (IOD), Arctic Oscillation (AO), Hadley, and monsoon circulations. Results show that the anomaly in tropospheric column...

Study of tropospheric ozone concentration trend of Kermanshah by meteorological parameter and ozone precursor and OMI images

Abstract: Clean air is a necessity for human well-being and health. Air pollution is a major threat to humans and other organisms and is considered as one of the environmental challenges. Today, with the increase in air pollution, the need to know more about the causes of its occurrence has been raised. The various consequences of air pollution have made air quality monitoring and control inev...

An improved global zenith tropospheric delay model

Improved Mapping of Tropospheric Delays

The authors compare several methods to map the a priori tropospheric delay of global positioning system (GPS) signals from the zenith direction to lower elevations. This is commonly achieved with so-called mapping functions. Dry mapping functions are applied to the hydrostatic delay; wet mapping functions are used to map the zenith wet delay to lower elevation angles. The authors compared the f...

the use of appropriate madm model for ranking the vendors of mci equipments using fuzzy approach

abstract nowadays, the science of decision making has been paid to more attention due to the complexity of the problems of suppliers selection. as known, one of the efficient tools in economic and human resources development is the extension of communication networks in developing countries. so, the proper selection of suppliers of tc equipments is of concern very much. in this study, a ...