VALLEY MORPHOMETRY AND VALLEY INCISION RATE

Fluvial processes, one of the main actors in the development of the geomorphologic structure, are reflected most saliently by valleys in topographic surfaces. Analyses focusing on valley morphometry that present concrete and accurate data in terms of both existing geometries and formation and development processes play a significant part in explaining geomorphologic properties especially in fluvial morphogenetic regions. Unfavorable aspects such as the insufficiency of existing analysis methods in generating real values and impossibility of conducting process-based analysis have created barriers to achieve the expected success in comprehending valley morphometry. Therefore, in order to eliminate this shortcoming, this study established a methodology by identifying the problems to enlighten which parameters should be placed in what parts of the equation by citing how the parameters should be measured in order to ensure the generation of desired data on both analog and digital data bases. This methodological approach, expressed more clearly and comprehensibly with the help of illustrations and mathematical formulas, was finalized by correlating it with the elements and parameters with counterparts in the concrete field data. As a result, while it was possible to examine concrete quantities in valleys related to length, area and volume based on amount and ratio without limitations on area and section; it was also possible to present a methodological framework that allows process analysis in terms of the operations of the fluvial process and developmental course of the geo-morphological structure.

VADİ MORFOMETRİSİ VE VADİ KAZILIM ORANI

Jeomorfolojik yapının gelişimindeki başlıca aktörlerden olan flüvyal süreçlerin topografik satıhtaki en belirgin yansımasını vadiler temsil eder. Gerek mevcut geometrilerine gerekse oluşum ve gelişim süreçleri bakımından somut ve doğru verilerin ortaya konacağı vadi morfometrisine odaklanmış analizler, özellikle flüvyal morfojenetik bölgeler için jeomorfolojik özelliklerin açıklanmasında büyük pay sahibidir. Kullanılmakta olan analiz yöntemlerinin özellikle reel veriler üretilmesi konusunda bazı yetersizlikler barındırması ve süreç bazlı tahlillere imkân vermemesi gibi olumsuzluklar vadi morfometrisinin anlaşılmasında istenilen başarının elde edilmesine mani olmaktadır. Bu durumun ortadan kaldırılabilmesi için çalışmanın ana çerçevesinde, eksikliklerin belirlenerek ihtiyaç duyulan verilerin hem analog hem de dijital veri tabanları üzerinden üretilebilmesi için hangi parametrelerin ne şekilde ölçülerek denklemin neresine yerleştirileceği hususlarına ışık tutan bir metodoloji inşa edilmiştir. Bu kapsamda karmaşık bir geometriye sahip olan topografik satıh, daha anlaşılır kılınması için eşdeğeri olacak basit bir üçgen pirizmaya modellenerek uzunluk, alan ve hacim açısından kolayca hesaplanabilecek geometriye indirgenmiştir. İllüstrasyonlar ve matematiksel formüller marifetiyle daha açık ve anlaşılır bir ifadeye kavuşturulan söz konusu metodolojik yaklaşım, somut saha verilerindeki karşılığı olan unsur ve parametrelerle bağdaştırılarak son şekline kavuşturulmuştur. Çalışmanın nihayetinde vadilerde alan ve bölüm kısıtlaması olmaksızın mevcut geometrideki uzunluk, alan ve hacme dair somut niceliklerin miktar ve oran bazlı tetkiki sağlandığı gibi, flüvyal sürecin işleyişi ve jeomorfolojik yapının gelişme seyri bakımından da vetire analizi yapmaya imkân sunacak bir metodolojik çerçeve ortaya konmuştur.

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ISSN: 2667-5617
Yayın Aralığı: Yılda 6 Sayı
Başlangıç: 2006
Yayıncı: ASOS Eğitim Bilişim Danışmanlık Otomasyon Yayıncılık Reklam Sanayi ve Ticaret LTD ŞTİ