نتایج جستجو برای: gully morphology

تعداد نتایج: 146786  

2012
M. A. Jolaoso

The problem of environmental degradation is becoming very real in Nigeria. It is also becoming a major source of insecurity locally. In recent times, flooding which affects most parts of the country has resulted in displacement of communities in most states of the federation. While flooding is largely a natural phenomenon, the upgrading of environmental infrastructure should be complemented wit...

2016
Chen Cao Peihua Xu Yihong Wang Jianping Chen Lianjing Zheng

This study focused on producing flash flood hazard susceptibility maps (FFHSM) using frequency ratio (FR) and statistical index (SI) models in the Xiqu Gully (XQG) of Beijing, China. First, a total of 85 flash flood hazard locations (n = 85) were surveyed in the field and plotted using geographic information system (GIS) software. Based on the flash flood hazard locations, a flood hazard invent...

2001
SHANNON GOWANS SASCHA K. HOOKER

It is postulated that deep-water foraging in sperm whales, Physeter macrocephalus, has led to communal care of young and long-term female bonds. By studying the social organization of a second, unrelated, deep-diving species, the northern bottlenose whale, we investigated the role that deep diving may play in the evolution of cetacean sociality. Northern bottlenose whales in a deep-water canyon...

Journal: :Computers & Geosciences 2011
Aykut Akgün Necdet Türk

Erosion is one of themost important natural hazard phenomena in theworld, and it poses a significant threat to Turkey in terms of land degredation and desertification. To cope with this problem, we must determine which areas are erosion-prone. Many studies have been carried out and different models and methods have been used to this end. In this study, we used a logistic regression to prepare a...

Journal: :PROCEEDINGS OF HYDRAULIC ENGINEERING 1999

Journal: :Water 2023

The Gully Consolidation and Highland Protection (GCHP) project is crucial in preventing gully erosion the Loess Plateau. However, there are new problems after completion of GCHP project, such as secondary disasters caused by sudden changes water flow paths. To study impact different measures on runoff sediment production, we conducted a series scouring experiments using similarity principle, ta...

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