The significance of fluvial erosion, channel storage and gravitational processes in sediment production in a small mountainous catchment area

2008 ◽  
pp. 141-160 ◽  
Author(s):  
Karl-Friedrich Wetzel
Keyword(s):  
Catchment Area ◽  
Fluvial Erosion ◽  
Mountainous Catchment ◽  
Sediment Production ◽  
Gravitational Processes

scholarly journals Possibility of Using Selected Rainfall-Runoff Models for Determining the Design Hydrograph in Mountainous Catchments: A Case Study in Poland

Water ◽  
2020 ◽  
Vol 12 (5) ◽  
pp. 1450 ◽  
Author(s):  
Dariusz Młyński ◽  
Andrzej Wałęga ◽  
Leszek Książek ◽  
Jacek Florek ◽  
Andrea Petroselli
Keyword(s):  
Catchment Area ◽  
Peak Flow ◽  
Rainfall Runoff ◽  
Peak Flows ◽  
Mountainous Catchment ◽  
Mountainous Catchments ◽  
Relative Errors ◽  
Runoff Hydrographs

The aim of the study was to analyze the possibility of using selected rainfall-runoff models to determine the design hydrograph and the related peak flow in a mountainous catchment. The basis for the study was the observed series of hydrometeorological data for the Grajcarek catchment area (Poland) for the years 1981–2014. The analysis was carried out in the following stages: verification of hydrometeorological data; determination of the design rainfall; and determination of runoff hydrographs with the following rainfall-runoff models: Snyder, NRCS-UH, and EBA4SUB. The conducted research allowed the conclusion that the EBA4SUB model may be an alternative to other models in determining the design hydrograph in ungauged mountainous catchments. This is evidenced by the lower values of relative errors in the estimation of peak flows with an assumed frequency for the EBA4SUB model, as compared to Snyder and NRCS-UH.

scholarly journals OBSERVATION OF TOTAL LOAD FROM A MOUNTAINOUS CATCHMENT AREA IN THE ABE RIVER

2017 ◽  
Vol 10 (2) ◽  
pp. 84-91
Author(s):  
Reiji KONDO ◽  
Toshihiro HASHINOKI ◽  
Satoshi TUCHIYA
Keyword(s):  
Catchment Area ◽  
Total Load ◽  
Mountainous Catchment

scholarly journals Yield Erosion Sediment (YES): A PyQGIS Plug-In for the Sediments Production Calculation Based on the Erosion Potential Method

Geosciences ◽  
2020 ◽  
Vol 10 (8) ◽  
pp. 324
Author(s):  
Rocco Dominici ◽  
Salvatore Larosa ◽  
Antonio Viscomi ◽  
Luca Mao ◽  
Rosanna De Rosa ◽  
...  
Keyword(s):  
Sediment Yield ◽  
Final Stage ◽  
Catchment Area ◽  
Potential Method ◽  
Sediment Production ◽  
Yield Value ◽  
Basin Scale ◽  
Gis Environment ◽  
Production Calculation ◽  
Python Programming

The Erosion Potential Method is a model for qualifying the erosion severity and estimating the total annual sediment yield of a catchment. The method includes a diverse set of equations, which are influenced by different factors such as geology, morphology, climate and soil use. This study describes a PyQGIS YES plug-in, which allows a semiautomatized use of the Erosion Potential Method in Geographic Information System (GIS) environment. In detail, we developed a plug-in using Python programming language that is made up of a series of operations allowing one to estimate sediment production through a wizard procedure. The first stage consists of data preprocessing and involves: (i) loading of the layers (e.g., geological map); (ii) spatial selection of the catchment area; (iii) elaboration of loaded layers (e.g., clipping). During the second stage, the user assigns a relative coefficient to each factor either by selecting a preloaded value from bibliographic sources or by inserting a value inferred from field observations and data. The third stage includes the addition of rainfall and temperature values loaded as: average values, point shapefiles (the plug-in calculates the average monthly values) or tables (the plug-in creates the linear regression depending on altitude). During the final stage, the plug-in executes the equation of EPM Model obtaining the sediment yield value at basin scale. Additionally, the user can use the “squared cell” method choosing the appropriate option in the setting dialogue of the plug-in. This method divides the catchment area in a regularly-spaced grid which allows one to carry out the distribution map of the sediment production during the final stage.

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