نتایج جستجو برای: rainfalls sustain time and flood recurrence period

تعداد نتایج: 17033784  

2009
M. C. Llasat

The aim of this work is to introduce a systematic press database on natural hazards and climate change in Catalonia (NE of Spain) and to analyze its potential application to social-impact studies. For this reason, a review of the concepts of risk, hazard, vulnerability and social perception is also included. This database has been built for the period 1982–2007 and contains all the news related...

ژورنال: علوم آب و خاک 2022

Hydrological models for evaluating and predicting the amount of available water in basins, flood frequency analysis, and developing strategies to deal with destructive floods are expanding daily. In this study, HEC-GeoHMS and Arc Hydro extensions in ArcGIS software and the HEC-HMS model were used to simulate design flood hydrographs in the Aydooghmush basin in the northwest of Iran. SCS-CN, SCS...

Journal: :مرتع و آبخیزداری 0
وحید پایروند 1 دانش آموخته کارشناسی ارشد آبخیزداری، دانشگاه تهران، ایران علی سلاجقه استادیار دانشکده منابع طبیعی، دانشگاه تهران، ایران محمد مهدوی استاد دانشکده منابع طبیعی، دانشگاه تهران، ایران محمدعلی زارع چاهوکی استادیار دانشکده منابع طبیعی، دانشگاه تهران، ایران

one of the most appropriate approaches for flood forecasting is using peak discharge data of hydrometric stations in each region. however, lack of such stations or short duration of data in most parts of the country, make it necessary to use some alternative methods in order to estimate the flood discharge properly. one of these approaches is regional flood analysis method that in a region usin...

پایان نامه :دانشگاه تربیت معلم - تهران - دانشکده ادبیات 1390

this study is an outlook of iranians religious practices and customs in eras such as nasser one. it attempts to answer the main question, "religious practices and ceremonies in the society during naseri ruling" and other subsidiary questions with scientific and historical theories. iran was a traditional and religious community . people abided by their religious practices and duties within reli...

ژورنال: علوم آب و خاک 2019

Identifying the rainfall characteristics and understanding the rainfall-related processes is one of the key factors in the scientific management of water resources. Selection of the design storm is the first step in the estimation of the design flood. Determining temporal rainfall patterns is very important as one of the design rainfall properties in flood estimation and the design of drainage ...

Journal: :avicenna journal of dental research 0
n. rafieiyan assistant professor, oral medicine department, faculty of dentistry, hamadan university of medical sciences, iranسازمان اصلی تایید شده: دانشگاه علوم پزشکی همدان (hamadan university of medical sciences) m. hamian post graduate student, oral medicine department, faculty of dentistry, shahid beheshti university of medical sciences, iranسازمان اصلی تایید شده: دانشگاه علوم پزشکی شهید بهشتی (shahid beheshti university of medical sciences) f. anbari post graduate student, oral medicine department, faculty of dentistry, shahid beheshti university of medical sciences, iran ; post graduate student, oral medicine department, faculty of dentistry, shahid beheshti university of medical sciences, iranسازمان اصلی تایید شده: دانشگاه علوم پزشکی شهید بهشتی (shahid beheshti university of medical sciences) h.r. abdolsamadi associate professor, oral medicine department, faculty of dentistry, hamadan university of medical sciences, iranسازمان اصلی تایید شده: دانشگاه علوم پزشکی همدان (hamadan university of medical sciences)

we herein report a case of ventral side of tongue lipoma in a 60-year old man who referred to our department with a mass at the right ventral side of his tongue that had existed there for an unknown period of time. clinical examination revealed a yellowish nodular lesion measuring 1 cm in diameter. histological examination showed mature adipocytes and varying size vessels between lobules of the...

Journal: :Environmental Research Letters 2023

Abstract With the recurrence of high-impact extreme events and growing public demands to understand causes events, event attribution has emerged as a frontier climate change research. Typically, an study focuses on one individual that just occurred. Studies rarely examine human influence multiple in different times past. Here we conduct comprehensive analysis four heaviest precipitation Yangtze...

2014
Guangwei Huang

Attempts at flood management during the 20th century resulted in more flood disasters. To gain a better understanding of what went wrong, it is necessary to examine historical evidence, seek ancient wisdom and compare practices of flood management in different countries. This study examines flood management concepts and practices in China and Japan during different periods of time in history an...

2007
Jeffrey C. Andrews-Hanna Roger J. Phillips

[1] The Martian outflow channels were carved by the eruption of catastrophic floods from groundwater aquifers. This study models the time evolution of a typical outflow channel flood originating within a chaos region. The flood initiates when superlithostatic pore pressures within a confined aquifer lead to the propagation of hydrofractures through the confining cryosphere to the surface. The p...

Flash floods are considered to be one the worst kind of hazard. They are characterized by their suddenness, rarity, small scale, heavy rain and peak discharge, unpredictable, fast and violent movement. It has severe effects on human society in the form life losses, damages to property, roads, communication and on natural settings. Advances in hydrology, meteorology, engineering, using of GIS an...

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