Comparison of Digital Elevation Modle "DEM" and Triangulated lrregular Network "TIN" Based Slope Calculations' Impact of Data Models on Surface Terrain Indexes
| المصدر: | مجلة دراسات الخليج والجزيرة العربية |
|---|---|
| الناشر: | جامعة الكويت - مجلس النشر العلمي |
| المؤلف الرئيسي: | Qoradi, Mofareh D. (Author) |
| المجلد/العدد: | س43, ع164 |
| محكمة: | نعم |
| الدولة: |
الكويت |
| التاريخ الميلادي: |
2017
|
| التاريخ الهجري: | 1438 |
| الشهر: | يناير / ربيع الأول |
| الصفحات: | 17 - 31 |
| DOI: |
10.34120/0382-043-164-008 |
| ISSN: |
0254-4288 |
| رقم MD: | 809238 |
| نوع المحتوى: | بحوث ومقالات |
| اللغة: | الإنجليزية |
| قواعد المعلومات: | HumanIndex, EcoLink |
| مواضيع: | |
| رابط المحتوى: |
عدد مرات التحميل
17
| المستخلص: |
This paper addressed building an evaluation model to compare slope computed from digital elevation models (DEMs) and triangulated irregular networks (TINs) based on sample slope random points. The study used Moran’s statistics to calculate slope differences between DEM and TIN results, where the slope average difference was about 9.46 degrees in the model starting with DEM and about 1.94 degrees in the model starting with TIN. In addition, the midpoint displacement method (MPDM) was employed to calculate differences between slopes computed from the northeast to the southwest corner of the dataset based on sample random points by Monte Carlo simulation; the study found no spatial trend in slope differences running from northeast to southwest through the datasets. The study recommends considering the use of DEM and TIN to create other surface-like slopes, hillshade, aspect, and hydrological analysis or when converting among them. |
|---|---|
| ISSN: |
0254-4288 |
عناصر مشابهة
-
Drone-Based Digital Terrain Model for the Classification of Karst Topography Texture
بواسطة: Doumit, Jean A. منشور: (2020) -
GIS-Based Network Analysis To Determine A Service Area for Current Civil Defense Centers In Riyadh, Saudi Arabia
بواسطة: Qoradi, Mofareh D. منشور: (2015) -
Using GIS Technique for Defining Stream Network Delineating Basins and Generate Areas Affected by Water Using Digital Elevation Models in Ta’if City, Saudi Arabia
بواسطة: Al Khammash, Majed منشور: (2012) -
Geomorphological Evaluation of Using the Digital Elevation Model "DEM" for Identifying the Morphmetrical Characteristics of Basins: Case Study Wadi Abu Had, Eastern Desert, Egypt
بواسطة: Abou Raiah, Ahmed Mohamed Ahmed منشور: (2015) -
Apport de la Télédétection et des SIG pour la Réalisation de la Carte D'occupation des Sols: Cas de la Wilaya de Djelfa
بواسطة: Oukil, Youcef منشور: (2020)
