عنوان	Multivariate statistical analysis of relationship between tectonic activity and drainage behavior in Qorveh-Dehgolan basin Kurdistan, Iran
نوع پژوهش	مقاله چاپ‌شده در مجلات علمی
کلیدواژه‌ها	Factor analysis; morphotectonic analysis; principal factor axis; Qorveh-Dehgolan basin; Sanandaj–Sirjan Zone; varimax rotation
چکیده	In this study, morphotectonic analysis was performed to investigate the influence of tectonic activity on drainage network in Qorve-Dehgolan basin, located in Sanandaj - Sirjan Zone (SSZ). Eight watersheds were delineated using burnt DEM and eleven morphotectonic indices including stream length gradient index (SL); drainage basin asymmetry (Af); hypsometric curve (HC); hypsometric integral (HI); roughness (R); elongation ratio (Re); mountain front sinuosity (Smf); basin shape (Bs); curvature of surface (C), basin slope (Sb) and river sinuosity index (K) were calculated. The higher altitude watersheds specifically showed various anomalies in the calculated indices. These indices when subjected to factor analysis (using Varimax rotation) resulted in extraction of “steepness factor” and “asymmetric factor” as two principal factors influencing the drainage network. The integrated analysis revealed that steepness factor, indicating ongoing tectonism, plays a significant role in the hydrology of higher altitude watersheds, whereas asymmetric factor is more dominant in lower altitude watersheds.
پژوهشگران	پیام سجادی (نفر اول)، آمیت سینگ (نفر دوم)، سومیترا موخرجی (نفر سوم)، پینگ پینگ لو (نفر چهارم)، کامران چپی (نفر پنجم)، ممند سالاری (نفر ششم به بعد)