About the return period of a catastrophe [PDF]
When a natural hazard event like an earthquake affects a region and generates a natural catastrophe (NatCat), the following questions arise: how often does such an event occur? What is its return period (RP)?
M. Raschke
doaj +3 more sources
Fitting the return period of dengue fever epidemic in Guangdong province of China [PDF]
Objectives: The prevention and control of dengue fever (DF) has been a major public health issue in Guangdong (GD) province, China. This study aims to analyze the return period (RP) and the return level (RL) of DF epidemic in GD, to help the formulation ...
Siqing Zeng +5 more
doaj +2 more sources
Abstract The design rainfall intensity and its return period of the combined interceptor sewer is an important factor affecting CSO occurrence. However, we often use the interceptor ratio (or interceptor multiple, n0) to design the interceptor sewer, and its equivalent design return period is often ignored.
Xingpo Liu, Liu Xingpo
exaly +2 more sources
Spatial frequency analysis of annual extreme daily precipitation across Japan
Study region: Japan. Study focus: In this study, we analyzed the spatial frequency of annual extreme daily precipitation (AEDP) across Japan once every 100 years.
Hajime Yanagisawa +2 more
doaj +1 more source
Frequency Analysis of Precipitation Anomaly Percentage and Stream Flow Drought Using Copula Functions [PDF]
The purpose of this research is to joint frequency analyze of precipitation anomaly percentage as a meteorological drought index and flow rate at Chalekhmaz station located in the Zarinerood basin at south of Lake Urmia in the period of 1995-2016, which ...
Mohammad Nazeri Tahroudi +1 more
doaj +1 more source
Determining the Maximum Flood Discharge Using the Response Surface Methodology in Darrehrood Sub-Basins, Ardebil Province [PDF]
It is impossible to manage water resources in basins without the accurate determination of the peak flood discharge. Therefore, this study was carried out to determine the peak flood discharge for the return period of 10, 25, 50, and 100 years using RSM ...
Yaser Hoseini
doaj +1 more source
A Study Of Some Hydrological Aspects For Spillway Design of A Small Dam In The North of Iraq [PDF]
This research is to evaluation and analyzing the main aspects of spillway design for Chaq-Chaq dam in north of Iraq in Suleimaniya governorate, with help of the hydraulic, hydrologic and climate data collecting.
Sahar A. Mohammad
doaj +1 more source
The Effect of a Short Observational Record on the Statistics of Temperature Extremes
In June 2021, the Pacific Northwest experienced a heatwave that broke all previous records. Estimated return levels based on observations up to the year before the event suggested that reaching such high temperatures is not possible in today's climate ...
Joel Zeder +4 more
doaj +1 more source
An update on multivariate return periods in hydrology [PDF]
Abstract. Many hydrological studies are devoted to the identification of events that are expected to occur on average within a certain time span. While this topic is well established in the univariate case, recent advances focus on a multivariate characterization of events based on copulas.
Benedikt Gräler +4 more
openaire +6 more sources
Towards preparation of design spectra for Serbian national annex to Eurocode 8: Part II. Usage of the UHS approach instead of normalized spectral shapes scaled by a single PSHA parameter [PDF]
Eurocode 8 spectra are scaled by the peak ground acceleration values that are defined for the given site through a probabilistic seismic hazard analyses (PSHA).
Bulajić Borko Đ. +2 more
doaj +1 more source

