List of Articles Morphometry

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  1 - Investigation of Shape Properties of earth's surface Based on Morphometric indices Using GIS(Case Study: Fahliyan Basisn)
  hamid babolimoakher saeid negahban
  Analysis of the Properties of the earth's surface, which can be influenced by climatic, hydrological, intrinsic properties of formations and neotectonic activities, plays an important role in recognizing the physical Properties of the Watershed. On the other hand, under More

  Analysis of the Properties of the earth's surface, which can be influenced by climatic, hydrological, intrinsic properties of formations and neotectonic activities, plays an important role in recognizing the physical Properties of the Watershed. On the other hand, understanding the physical Properties of the Watershed is one of the first steps required in morphological and hydrological studies. This research tries to study the shape of the earth's surface in Fahliyan watershed using morphometric indices. For this purpose, 6 geomorphometric indices, total curvature, profile curvature, surface curvature, TRI index, TPI index and TWI index were selected and using the relationships for each index and using relevant extensions in ArcGis 10/3 software, each map These indicators were prepared. The results of calculating the total curvature show that more than half of the surface of the basin (52.80) has a concave curvature and 47.20 percent of it has convex curvature. Also, the lower and upper limits for curvature of the surface were -2.99 and 3.96 respectively and for the curvature of the profile were -4.87 and 4.2 respectively. Accordingly, the lower and upper limit of the TPI index, which divides the mode of nodule and bulge, was calculated as <-4.2 and >, respectively. The values of the TRI index, which are somewhat different from the height of one pixel with their adjacent eight pixels, were calculated from 0 to >14. And finally TWI index values that indicate the soil moisture condition in the order of <-1.5 to >5.5 calculated. The percentage of the area of each of these indicators in the Watershed, which was obtained in the results of this study, can be used in various watershed planning including erosion and sediment, Landform Classifcation, identifying and introducing areas involved with landslide hazard, flood studies, studying and studying resources Groundwater and ... to be used. Manuscript profile
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  2 - Morphometric age of Khatoon-Bagh cinder cone, NE of Mahabad, West Azerbaijan province
  Morteza Khalatbari Nafiseh Salehi Marzieh Faridi Masouleh
  Scoria cone near Khatoon-Bagh, NE of Mahabad in West Azerbaijan province consists of 3 Parts: Lower part containlayer of scoria, ash and tephra, middle part consist of volcanic bomb-bearing scoria and finally (Cupper part) a layer full of bomb. Their composition is main More

  Scoria cone near Khatoon-Bagh, NE of Mahabad in West Azerbaijan province consists of 3 Parts: Lower part containlayer of scoria, ash and tephra, middle part consist of volcanic bomb-bearing scoria and finally (Cupper part) a layer full of bomb. Their composition is mainly olivine basalt. The morphometric data used for morphologic age were either derived by manual measurement on topographic maps and by Digital Elevation Model-based (DEM) calculations. The main parameters of cone such as height, basal and crater diameter have been measured for calculation of Hco/Wco ratio and average slope angle. The main parameters show that the basal shape of this cinder cone is elliptical and at the crater is super elliptical, therefore can categorize it as horseshoe-shaped cone. The comparison of main parameters from a number of previous studied cinder cones from around the world suggest that dimensions of Khatoon-Bagh cone is similar to global average. Since with the increase in age and degradation of cone, the height, height to diameter and slope angle of cone will decrease, so Hco/Wco could be used for morphometric ages. According to Wood (1980b) and Sucipta et al. (2006) aging data and Porker (1972)’s relations, the relative age of Khatoon-Bagh cinder cone estimate 0.7-2 Ma which is in agreement with stratigraphic age in geological maps Manuscript profile