Document Details

Document Type : Article In Journal 
Document Title :
Estimation of Minimum Land Surface Temperature Using the Special Sensor Microwave/Imager (SSM/I) over the Southwestern Region of Saudi Arabia
تقدير درجة الحرارة الصغرى لسطح الأرض بإستخدام مجس حساس للموجات الدقيقة (SSM/I) فوق المنطقة الجنوبية الغربية للملكة العربية السعودية
 
Document Language : English 
Abstract : The temperature of land surface over the southwest region of Saudi Arabia was inferred using passive microwave brightness temperatures sensed by the Special Sensor Microwave/Imager (SSM/I) on board a Defense Meteorological Satellite Program (DMSP). A linear regression analysis was used to correlate the SSM/I brightness temperatures or combinations of brightness temperatures with minimum screen air temperature (representing the minimum surface temperature) in a semi-arid, mountain region. Elevation correction and interpolation were performed. Two methods were used as “ground truth” for minimum air temperatures to investigate the response of SSM/I brightness temperatures to land surface temperatures (T1 and T2). It is shown that the brightness temperatures and the combination of brightness temperatures were poorly correlated with T1 and T2 where all data were used. Four methods were performed to determine the dry soil grid cells. Low correlation was found between brightness temperatures and combination of brightness temperatures and T1 and T2 over dry soil grid cells. Then the study area was divided into three regions: west, center, and east of the mountain. It is found that the brightness temperatures and combination of brightness temperatures were poorly correlated except that H37 channel showed the best channel response to T1 in the east region. A single pixel linear correlation was performed on all the dry soil grid cells. It was found that H37 is the best single SSM/I channel to investigate land surface minimum temperature (T1) and H19 is the best single SSM/I channel to investigate land surface minimum temperature (T2). 
ISSN : 1319-1039 
Journal Name : Meteorology, Environment and Arid Land Agriculture Sciences Journal 
Volume : 9 
Issue Number : 1 
Publishing Year : 1418 AH
1998 AD 
Article Type : Article 
Added Date : Sunday, July 29, 2012 

Researchers

Researcher Name (Arabic)Researcher Name (English)Researcher TypeDr GradeEmail
عبد الوهاب سليمان مشاطMASHAT, ABDUL-WAHAB SInvestigatorDoctorate 

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