2012 ©
             Publication
Journal Publication
Title of Article Estimation of Missing GPS Precipitable Water Vapor Data by Zenith Wet Delay and Meteorological Data 
Date of Acceptance 9 May 2014 
Journal
     Title of Journal Advanced Materials Research 
     Standard SCOPUS 
     Institute of Journal Trans Tech Publications, Switzerland 
     ISBN/ISSN 1662-8985 
     Volume  
     Issue 931-932 
     Month
     Year of Publication 2014 
     Page 703-708 
     Abstract This article presents a statistical correlation between GPS precipitable water vapor and meteorological data, i.e., surface temperature, air pressure, relative humidity, dew point temperature, and water vapor pressure by using linear regression. The data, recorded over a 4-year period, was used as an estimation of missing GPS precipitable water vapor data from discontinuous recordings. A multiple linear regression equation showed a correlation among zenith wet delay(ZWD), water vapor pressure(e) and surface temperature(T) was ZWD(e,T) = 17.4952e-0.8281T-93.164, with a coefficient of determination(R 2 ) of 0.725, a mean absolute error of 8.71 mm, a root mean square error of 10.39 mm, and a mean absolute percentage error of 18.63%. The equation obtained can be used to estimate GPS precipitable water vapor data which is missing from recordings due to accident or technological error.  
     Keyword pwv, remote sensing, meteorological, rain, water management 
Author
557040031-4 Mr. PRAWIT UANG-AREE [Main Author]
Engineering Doctoral Degree

Reviewing Status มีผู้ประเมินอิสระ 
Status ตีพิมพ์แล้ว 
Level of Publication นานาชาติ 
citation false 
Part of thesis true 
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