Comparison of peak discharge and runoff characteristic estimates from the rational method to field observations for small basins in central Virginia

2006 ◽  
Author(s):  
Donald C. Hayes ◽  
Richard L. Young
Keyword(s):  
Rational Method ◽  
Peak Discharge ◽  
Field Observations

scholarly journals The floods in Greece: the case of Mandra in Attica

2018 ◽  
Vol 52 (1) ◽  
pp. 131 ◽  
Author(s):  
Georgios Soulios ◽  
Georgios Stournaras ◽  
Konstantinos Nikas ◽  
Christos Mattas
Keyword(s):  
Climate Change ◽  
Natural Disasters ◽  
Rational Method ◽  
Peak Discharge ◽  
Human Intervention ◽  
Return Periods ◽  
Flooding Event ◽  
Stream Characteristics ◽  
Extensive Damage

Floods are one of the most common natural disasters and are extremely dangerous in a global range since they can cause extensive damage to properties or losses in human lives. According to the opinion of many expert scientists, climate change has led to the increase of flooding phenomena over the last years worldwide, as well as in Greece. The aim of this paper is to examine the flooding event that occurred in Mandra area, Attica (Greece) on 14-15 November of 2017. The peak discharge of the Agia Ekaterini and Soures streams was calculated using the rational method (Giandotti) for return periods equal to 10, 100 and 1000 years. The stream characteristics were studied and their behavior during the flood was investigated. Many of the impacts were attributed to the human intervention in the streambeds.

Rational Method Time of Concentration Can Underestimate Peak Discharge for Hillslopes

2021 ◽  
Vol 147 (10) ◽  
pp. 06021014
Author(s):  
Dana Ariel Lapides ◽  
Anneliese Sytsma ◽  
Octavia Crompton ◽  
Sally Thompson
Keyword(s):  
Rational Method ◽  
Peak Discharge ◽  
Time Of Concentration

scholarly journals MEMBANGUN “SISTEM DINAMIS UNTUK MENGHITUNG DEBIT PUNCAK” (SDDP) DENGAN MENGGUNAKAN STELLA VERSI 9.0.2 (Uji Aplikasi Untuk Wilayah Banjir di Kecamatan Makasar Jakarta Timur)

2018 ◽  
Vol 5 (1) ◽  
Author(s):  
Robertus Haryoto Indriatmoko
Keyword(s):  
Key Words ◽  
Catchment Area ◽  
Rational Method ◽  
Peak Discharge ◽  
C Value ◽  
Rain Fall ◽  
Manual Calculation

Peak Discharge Dinamyc System (SDDP) is a program which apply to calculate peak of discharge a catchment area with area and rain fall intensity as parameters, with limited to maximal 50 km2 area and 100 mm/hour rain fall intensity. This program is develop by using System Dinamyc Stella version 9.0.2. Steps taken are, first by calculate runoff cooeficient use Bridge-Branch method and then calculate peak discharge with rational method. This program is tested on sub-catcment Makassar, East Jakarta and compare the result of the program with manual calculation, and concluded that no deviation between those 2 methods, and even more the SDDP program provide prediction of peak discharge with variable C value and data of calculation peak discharge with SDDP program presented in graphic and tabulation as well. Key words : Model, Sistem Dinamis, Stella, Banjir, Debit Puncak, Koefisien Aliran, Prediksi, Jakarta Timur

scholarly journals Model Hidrograf Akibat Perubahan Tataguna Lahan DAS Batang Kuranji (Studi Kasus Sub DAS Danau Limau Manis)

2017 ◽  
Vol 13 (1) ◽  
pp. 1
Author(s):  
Elvi Roza Syofyan ◽  
Amrizal Saidi ◽  
Bambang Istijono ◽  
Revalin Herdianto
Keyword(s):  
Land Use ◽  
Rational Method ◽  
Peak Discharge ◽  
Runoff Coefficient ◽  
Number Increase ◽  
Significant Change ◽  
Using Data

The purpose of the study is to look at changes in land use and hydrograph models of  Danau Limau Manis  Sub-watershed using  data 2011 until 2015.The results shows the change of  land use of Batang Kuranji Watershed,  Sub DAS Danau Limau Manis can decreased 3.03%  from 2011 to 2015. It due to the opening of new land. While shrub rose rose 0360%, because was due of changes of forests that have not done processing. For an others using of the land  the number increase 3.40%. It due to changes of forests and shrubs into failure land.. As the runoff coefficient (C) does not occur any significant change that is from 0.405 into 0.408. Peak discharge calculated by the Nakayasu method 128.02 m3 / dt, was greater by Rational method of 127,52  m3 / dt is caused no difference in the approach used.

On Methodology for Designing Architectural Lighting of Production Site Interior

2020 ◽  
pp. 10-21 ◽  
Author(s):  
Vladimir V. Voronov ◽  
Nikolay I. Shchepetkov
Keyword(s):  
Architectural Design ◽  
Comprehensive Approach ◽  
Scientific Methodology ◽  
Field Observations ◽  
Production Site ◽  
Artificial Illumination ◽  
Engineering Parameters ◽  
Architectural Lighting ◽  
Candidate Thesis

The article describes content of original and relevant but virtually forgotten thesis of V.V. Voronov on lighting of production site interiors by means of overhead natural (using three types of skylights) and artificial illumination, in order to elaborate scientific methodology for architectural design of more qualitative luminous environment on the basis of comprehensive approach and enhanced criteria framework of its evaluation using light engineering parameters. The thesis is unique in terms of the scope and quality of field and laboratory observations which are reflected not only in the text but also in the graphical attachments, namely photos, figures, schemes, drawings, charts, nomograms, and diagrams accompanied by specific measured or calculated parameters. The first part of the thesis contains theoretical basics and results of field observations conducted by different methods. This second part is the exposition of chapter 3 of the V.V. Voronov’s candidate thesis (1985). It describes the methodology for and the results of the experiments by means of planar and volumetric light simulation using the architectural lighting simulating assembly (chamber) which were conducted in MARKHI in 1970–1985.

Concerning the Concept of Light-Colour Arrangement of the Urban Environment in the Central Part of Tyumen

2020 ◽  
pp. 34-42
Author(s):  
Nikolay I. Shchepetkov ◽  
Svetlana B. Kapeleva ◽  
Denis V. Bugaev ◽  
Gregory S. Matovnikov ◽  
Anna S. Kostareva
Keyword(s):  
Urban Environment ◽  
Comprehensive Analysis ◽  
Assessment Criteria ◽  
Field Observations ◽  
General Plan ◽  
Design Solutions ◽  
Methodological Principles ◽  
The City

The article provides a comprehensive analysis of outdoor lighting in the central part of Tyumen (with consideration of conducted field observations) and prospects of its development on the basis of the general plan of illumination of the central part of the city being under design. Main provisions of this general plan as well as methodological principles and assessment criteria of design solutions illustrat-ed by photographs, schemes and visualisations of the illuminated objects are described.

IMPLEMENTASI KURIKULUM BERBASIS INDUSTRI DI SMK MITRA INDUSTRI MM2100 CIKARANG - BEKASI

2020 ◽  
Vol 8 (2) ◽  
pp. 81-88
Author(s):  
Bambang Nurcahyono ◽  
Rita Retnowati ◽  
Entis Sutisna
Keyword(s):  
Curriculum Development ◽  
Learning Process ◽  
Qualitative Method ◽  
Process Approach ◽  
Development Model ◽  
Field Observations ◽  
Work Patterns ◽  
Block System ◽  
Comprehensive Picture ◽  
Dual Base

INDUSTRIAL BASED CURRICULUM IMPLEMETATION AT SMK MITRA INDUSTRI MM2100 CIKARANG-BEKASIThis study aims to obtain a fact-based picture in the form of data and information regarding the implementation of an industry-based curriculum at SMK Mitra Industri MM2100. This study uses a qualitative method, which is to make a complex and comprehensive picture with detailed descriptions from the eyes of the informants to produce a comprehensive exposure based on clear and real findings, events, processes and results related to the implementation of an industry-based curriculum. Data obtained through interviews, field observations and documentation studies. Based on data analysis, the following results are obtained: 1). The curriculum development model used at SMK Mitra Industri MM2100, is a model of curriculum development that is problem-centered by integrating several disciplines to form a concept of attitudes, skills and knowledge in accordance with the demands and needs of the industry which are oriented to the vision, mission and goals of the school. 2). The learning process at SMK Mitra Industri MM2100 uses a block system, which is designed to be oriented towards the merging of instruction and construction, so that the learning process approach refers to the dual base program to fully and fully cultivate industrial work patterns. 3). Challenges and obstacles in the implementation of industrial-based curriculum in SMK Mitra Industri MM2100 in the form of not wanting to change the principles of school/mental blockage, focusing on knowledge, school target is focus on graduation of students, not on the distribution of work at industries and bad networking with industry which can be overcome through socialization to all elements of the school and stakeholders involved.

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