Search Results - "troposphere"

Interpolation of the GNSS Wet Troposphere Delay by Lo, Johnny, El-Mowafy, Ahmed

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Assessment of EGNOS Tropospheric Correction Model by Penna, Nigel

Subjects: “…EGNOS - GPS augmentation - troposphere…”
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Tropospheric ozone pollution, agriculture, and food security by Sarkar, A., Datta, Sambit, Singh, P.

“…Therefore, a normal approach for any nation / region is to strengthen its agricultural production for meeting future demands and provide food security. Tropospheric ozone (O 3 ), a secondary air pollutant and a major greenhouse gas, has already been recognized as a major component of predicted global climate change. …”
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Estimation of tropospheric wet delay from GNSS measurements by Lo, Johnny Su Hau

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Transformation of Neill Mapping Function For GPS Tropospheric Delay by Hamzah , Sakidin, Tay, Choo Chuan

“…The tropospheric delay is the product of zenith tropospheric delay and mapping function. …”
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Tropospheric delay effects on relative GPS height determination by Mohd. Zaki, Mohd. Zahlan, Kamarudin, Md. Nor

“…In the global positioning system (GPS) surveying for point positioning, one of the principal limiting error source is incorrect modeling of the delay experienced by GPS signal propagating through the electrically neutral atmosphere, usually referred to as the tropospheric delay. This paper concentrates on showing the result of an experimental work that has been conducted by integrating the Malaysian Active GPS Station (MASS) data and ground meteorological observations to analyze the variation occur to the GPS height determination due to the tropospheric delay. …”
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The effect of UNBabc mapping function modification to GPS tropospheric delay by Abd.N., Matori, H., Sakidin, M.R., Abu Bakar, A.R.M., Shariff, M.S.Md., Noorani, A., Mohamed, A., Ahmad

“…As the coefficient of the zenith tropospheric delay, the value of mapping function will affect total tropospheric delay. …”
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Effect of GPS tropospheric delay Neill mapping function simplification by Abd.N., Matori, H., Sakidin, M.R., Abu Bakar, A.R., Mohamed Shariff, M.S., Md Noorani, A., Mohamed

“…The mathematical modeling on the mapping function models should be revised and also simplified to improve the calculation of the GPS tropospheric delay. The zenith tropospheric delay can be amplified by a coefficient factor called mapping function to form total tropospheric delay. …”
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Prediction of the tropospheric scintillation for earth to satellite link in tropical climate by Rahim, Nadirah Abdul, Dao, Hassan, Islam, Md. Rafiqul, Ibrahim, Ahmad Fadzil Ismail

“…Most of them can predict tropospheric scintillation from 7 GHz to 20 GHz. All of them have been developed based on scintillation data collected from temperate climate. …”
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Performance evaluation of different troposphere delay models and mapping functions by El-Mowafy, Ahmed, Tuka, A.

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The effect of UNBabc mapping function modification to GPS tropospheric delay by Sakidin, Hamzah, Abu Bakar, Mohd Rizam, Mohamed Shariff, Abdul Rashid, Md Nooraini, Mohd Salmi, Matori, Abd. Nasir, Mohamed, Azhari, Ahamd, Asmala

“…As the coefficient of the zenith tropospheric delay, the value of mapping function will affect total tropospheric delay. …”
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Effect of GPS tropospheric delay Neill mapping function simplification by Sakidin, Hamzah, Abu Bakar, Mohd Rizam, Mohamed Shariff, Abdul Rashid, Md Noorani, Mohd Salmi, Matori, Abd. Nasir, Mohamed, Azhari

“…The mathematical modeling on the mapping function models should be revised and also simplified to improve the calculation of the GPS tropospheric delay. The zenith tropospheric delay can be amplified by a coefficient factor called mapping function to form total tropospheric delay. …”
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Temporal and spatial distribution of the mid-tropospheric CO₂ concentrations in Malaysia' by Othman, N. H., Muharam, Farrah Melissa, Ashaari, Zulfa Hanan, Othman, M. A., Othman, Melawani

“…From January 2009 to December 2012, the mid-tropospheric CO₂ concentrations increased gradually with annual growth rate about 1.293 ppmv/a. …”
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The Effects of UNBabc Mapping Function Modification To GPS Tropospheric Delay by Sakidin, H., Abu Bakar, M. R., Abdul Rashid, M. S., Matori, A. N., Mohamed, A., Asmala, A.

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The analysis of tropospheric aerosol concentration and distribution using NOAA AVHRR by Wan Kadir, Wan Hazli, Ibrahim, Ab. Latif, Rasib, Abdul Wahid, Mohd. Hassan, Aida Hayati, Zaini, Zawatil Azhani

“…This study presents the potentiality of using NOAA AVHRR data to obtain tropospheric aerosol distribution over Malaysian land area. …”
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The impact of tropospheric delay towards the accuracy of GPS height determination by Yahya, Mohd. Hafiz, Kamaruddin, Md. Nor

“…In order to determine the amount of GPS signal propagation delay, a computer program namely TROPO.exe has also been developed based on a refined Saastamoinen tropospheric model. Results show that the tropospheric delay is a distance-dependent error that will increase when the baseline lenght between two stations increases. …”
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The effect of tropospheric delay on GPS height differences along the equator by Dodo, Joe, Md. Nor, Kamarudin, Yahya, Mohd. Hafiz

“…The atmosphere related errors of ionosphere and troposphere constitute one of these potential errors. …”
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Precision analysis of troposphere sensing using GPS single-frequency signals by Wang, Kan, Khodabandeh, Amir, Teunissen, Peter

“…Various studies have been performed to investigate the accuracy of troposphere zenith wet delays (ZWDs) determined from GPS. …”
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Sensitivity of midnineteenth century tropospheric ozone to atmospheric chemistry-vegetation interactions by Hollaway, M., Arnold, S., Collins, Bill, Folberth, G., Rap, A.

“…We use an Earth System model (HadGEM2-ES) to investigate the sensitivity of midnineteenth century tropospheric ozone to vegetation distribution and atmospheric chemistry-vegetation interaction processes. …”
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Comparison of tropospheric scintillation models on earth-space paths in tropical region by Abdul Rahim, Nadirah, Islam, Md Rafiqul, Mandeep, J S, Dao, Hassan

“…This study presents the comparison of the cumulative distribution of tropospheric scintillation models in order to see which model suits the best with the measured one. …”
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