![](/images/graphics-bg.png)
Estimation of surface soil moisture in a semi-arid, mountainous region using satellite microwave observations : a case study of southwestern region of Saudi Arabia
Other Title(s)
تقدير رطوبة التربة السطحية باستخدام الأمواج الدقيقة لتابع فوق المنطقة الجبلية الشبه جافة : دراسة حالة للمنطقة الجنوبية الغربية من المملكة العربية السعودية
Author
Mashashat, Abd al-Wahhab Sulayman
Source
Journal of King Abdul Aziz University : Meteorology, Environment and Arid land Agriculture Sciences
Issue
Vol. 6, Issue 1 (31 Dec. 1995), pp.57-71, 15 p.
Publisher
King Abdulaziz University Scientific Publishing Center
Publication Date
1995-12-31
Country of Publication
Saudi Arabia
No. of Pages
15
Main Subjects
Earth Sciences, Water and Environment
Topics
Abstract AR
يهتم هذا البحث بتطبيقات الأمواج الدقيقة السلبية على رطوبة التربة بسبب هطول الأمطار في المنطقة الجنوبية الغربية للملكة العربية السعودية.
تمت دراسة حالة للتحقق عن تجارب حرارات السطوع لرطوبة التربة.
الحالة الأولى عند صعود التابع (حوالي السادسة صباحا) و الثانية عند انحدار التابع (حوالي الساعة السادسة مساء). عن خلال الحالتين وجد أن حرارة السطوع المعيارية بالنسبة لدرجة حرارة سطح الأرض يمكن أن تدل عن رطوبة التربة السطحية.
كذلك وجد أن حرارة السطوع المعيارية ليست حساسة لرطوبة التربة عند وجود سحب ممطرة و التي يمكن معرفة وجودها من خلال فحص حرارة السطوع ذات تردد 85,5 جيجا هرتز.
Abstract EN
This study presents the use of passive microwaves to classify and estimate the surface soil moisture in a semi-arid, mountainou s regio n.
The southweste rn regio n of Saud i Arabia was chosen for this study.
Two case studies have been considered to investigate the response of Special Sensor Microwave/Imager (SSM/I) brightn ess temperature to soil moisture .
The first case is at satellite ascending overpass time (about 6:00 a.m.
local solar time) .
and the seco nd one is at satellite descend ing overpass time (about 6:00 p.m.
local solar time).
It is shown that normalized brightne ss temp er ature with respect to ground temp er ature may be interpreted in term s of the soil moisture in the surface layers.
Normalized brightn ess temper ature is not sensitive to soil moisture when precipitating cloud s are presen t.
The existence of precipitating clouds over the study area was determined through examination of the brightn ess temp er ature of frequ en cy 85.5 GHZ(Gigah ert z).
American Psychological Association (APA)
Mashashat, Abd al-Wahhab Sulayman. 1995. Estimation of surface soil moisture in a semi-arid, mountainous region using satellite microwave observations : a case study of southwestern region of Saudi Arabia. Journal of King Abdul Aziz University : Meteorology, Environment and Arid land Agriculture Sciences،Vol. 6, no. 1, pp.57-71.
https://search.emarefa.net/detail/BIM-397288
Modern Language Association (MLA)
Mashashat, Abd al-Wahhab Sulayman. Estimation of surface soil moisture in a semi-arid, mountainous region using satellite microwave observations : a case study of southwestern region of Saudi Arabia. Journal of King Abdul Aziz University : Meteorology, Environment and Arid land Agriculture Sciences Vol. 6, no. 1 (1995), pp.57-71.
https://search.emarefa.net/detail/BIM-397288
American Medical Association (AMA)
Mashashat, Abd al-Wahhab Sulayman. Estimation of surface soil moisture in a semi-arid, mountainous region using satellite microwave observations : a case study of southwestern region of Saudi Arabia. Journal of King Abdul Aziz University : Meteorology, Environment and Arid land Agriculture Sciences. 1995. Vol. 6, no. 1, pp.57-71.
https://search.emarefa.net/detail/BIM-397288
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references : p. 69-70
Record ID
BIM-397288