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Register a new userProcessing of satellite images for observing the iron oxides and texture in the soils from lower basin of Al-abrash river
معالجة صور فضائية لرصد اكاسيد الحديد والتركيب الميكانيكي في ترب من الحوض الادنى لنهر الابراش
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Added by
Damascus University رسالة ماجستير
Publication date
2016
fields
Agricultural Engineering
and research's language is
العربية
Created by
Shamra Editor
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تهدف هذه الدراسة إلى رصد محتوى التربة من أكاسيد الحديد والتركيب الميكانيكي والمادة العضوية وكربونات الكالسيوم ثم رسم خرائط توزع ونسبة العنصر المدروس ضمن سهل عكار جنوب محافظة طرطوس باستخدام صور التابع الصنعي (Rapideye ) تم أخذ العينات من الطبقة السطحية للتربة بطريقة الحفر الصغيرة بحيث تمثل جميع أنواع الترب في منطقة الدراسة
This study aims to monitor the soil content of iron oxides, mechanical composition, organic matter and calcium carbonate, then mapping the distribution and percentage of the studied element within the Akkar Plain, south of Tartous Governorate, using images of the artifact (Rapideye). The soil in the study area
References used
الشاطر , محمد سعيد , اكرم البلخي , ميساء الكبرا (2010) خصوبة التربة والتسميد . منشورات جامعة دمشق
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Orthorectification is the process of geometrically correcting imagery for geometric
distortions which can be caused by topography, camera geometry, and sensor related
errors. The output of orthorectification has the same geometric characteristics o
f a
traditional map. But getting areal or satellite images is an expensive process requiring
complex administrative procedures .
In this study we propose take advantage of free images available in the browser
Google Earth in order to produce an orthophoto. Then we will assess the horizontal
accuracy of the resulted orthophoto to know the limitations of its use engineering
applications such as maps production and updating. The proposed methodology is based on
the flight simulation process within Google Earth to acquire a stereoscopic pair of
overlapping images. After that, this pair will be oriented using control points. The oriented
pair is then used to generate a Digital Terrain Model (DTM) and to generate the
orthophoto. Later, we will examine the accuracy of this orthophoto by comparing it with a
topographic plane (scale 1/1000) and with a rectified satellite image of the same area.
This study includes a full analysis of climatic, vegetation, and topographical factors in Nabe Matta preserve (Drekish Region – Tartous Governorate – Syria), which is considered as the most important factors affecting forest fires. The data were coll
ected for each fire and analyzed by statistical programs (SPSS) and (EXCEL), and the relationship between these multiple factors and the phenomenon of recurrence of fire in one area (fire risk region) was studied. Then the data and the results of the analysis and multi relationship had been studied within the geographic information system software (GIS) to obtain the map of fire risk region, as well as results from topographic maps (1:50.000), aerial photographs (1:25.000), and the needed maps were designed for the study such as (slope map - aspect map - vegetation cover map - infrastructure map - fire risk region map),then places of monitoring towers and centers of rapid intervention in high-risk areas have been proposed for the occurrence of fires. These maps are considered as warning systems and with it we can predict the probability of any fire in the Preserve when the appropriate conditions are provided for it.
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