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Analysis of morphometric parameters of glacial cirques of Green Heights
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HojatAllah Biranvand *   1, Abdullah Saif1 , Maryam Sidi Segund2 |
1- Isfahan University
2- Lorestan University |
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Abstract: (32 Views) |
Morphometric and allometric investigations of glacial cirques provide the possibility of investigating the vertical and regional development, the degree of evolution, the direction of development, the relationship between the orientation of these landforms with the topographic elevation, the structural state of the bedrock and climatic factors. make The purpose of this research; Identification, classification and analysis of morphometric and allometric parameters of glacial cirques of Green Heights in Lorestan province. After the identification of 38 sub-glacial basins, 145 glacial cirques were identified in the area and classified on the slope map in two linear and polygonal formats. The cirque classification operations are based on Wilburg and Rodberg, Evans and Cooks methods. done accepted For the morphometry of these cirques, parameters such as (L), (W), (H), (L/W), (L/H), (W/H) and cirque size were used, and morphometric and allometric characteristics. They were extracted and analyzed by fitting power models on the longitudinal profile of cirques. According to the research results, there are 17 N1 category circuses, 28 N2 category circuses, 48 N3 category circuses, 37 N4 category circuses and 15 N5 category glacier circuses in these heights. In the circuses of category N1, N2 and N3, the average coefficient b on the longitudinal axis and the average coefficient a on the transverse axis of these circuses are more than 1. As a result, allometric and isometric behavior in these altitudes is positive for circuses of this category. Also, the average coefficient b on the longitudinal axis of N4 and N5 category circuses and the average coefficient a on the transverse axis of circuses of this category is less than 1. As a result, allometric and isometric behavior in these altitudes is negative for these cirques. Keywords: allometry, glacial cirques, morphometry, Green heights.
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Article number: 4 |
| Keywords: allometry, glacial cirques, morphometry, Green heights. |
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Full-Text [PDF 2915 kb]
(20 Downloads)
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Type of Study: Research |
Subject:
Special
Received: 2023/07/19 | Accepted: 2025/09/30 | Published: 2025/09/30
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