Regression analysis in modeling of air surface temperature and factors affecting its value in Peninsular Malaysia

Jasim M. Rajab; Mohd Zubir M. Jafri; Hwee-San Lim; Khiruddin Abdullah

doi:10.1117/1.OE.51.10.101702

21 May 2012 Regression analysis in modeling of air surface temperature and factors affecting its value in Peninsular Malaysia

Jasim M. Rajab, Mohd Zubir M. Jafri, Hwee-San Lim, Khiruddin Abdullah

Author Affiliations +

Optical Engineering, Vol. 51, Issue 10, 101702 (May 2012). https://doi.org/10.1117/1.OE.51.10.101702

Abstract

This study encompasses air surface temperature (AST) modeling in the lower atmosphere. Data of four atmosphere pollutant gases (CO, O₃, CH₄, and H₂O_vapor) dataset, retrieved from the National Aeronautics and Space Administration Atmospheric Infrared Sounder (AIRS), from 2003 to 2008 was employed to develop a model to predict AST value in the Malaysian peninsula using the multiple regression method. For the entire period, the pollutants were highly correlated (R = 0.821) with predicted AST. Comparisons among five stations in 2009 showed close agreement between the predicted AST and the observed AST from AIRS, especially in the southwest monsoon (SWM) season, within 1.3 K, and for in situ data, within 1 to 2 K. The validation results of AST with AST from AIRS showed high correlation coefficient (R = 0.845 ?starttoend?0.918), indicating the model's efficiency and accuracy. Statistical analysis in terms of β showed that H₂O_vapor (0.565 to 1.746) tended to contribute significantly to high AST values during the northeast monsoon season. Generally, these results clearly indicate the advantage of using the satellite AIRS data and a correlation analysis study to investigate the impact of atmospheric greenhouse gases on AST over the Malaysian peninsula. A model was developed that is capable of retrieving the Malaysian peninsulan AST in all weather conditions, with total uncertainties ranging between 1 and 2 K.

Citation Download Citation

Jasim M. Rajab, Mohd Zubir M. Jafri, Hwee-San Lim, and Khiruddin Abdullah "Regression analysis in modeling of air surface temperature and factors affecting its value in Peninsular Malaysia," Optical Engineering 51(10), 101702 (21 May 2012). https://doi.org/10.1117/1.OE.51.10.101702

Published: 21 May 2012

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available