Preliminary considerations on the application of the Gavrilović method in GIS environment for the calculation of sediment produced by the catchment area of the Stilaro Fiumara (Calabria south-east)

2015 ◽  
Vol 33 ◽  
pp. 104-107 ◽  
Author(s):  
Carmine Vacca ◽  
Rocco Dominici
Keyword(s):  
Catchment Area ◽  
Gis Environment

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.

Present Condition Analysis and Design of Sewer Collector Recovery

2020 ◽  
Vol 15 (3) ◽  
pp. 184-195
Author(s):  
Réka Csicsaiová ◽  
Ivana Marko ◽  
Jaroslav Hrudka ◽  
Ivona Škultétyová ◽  
Štefan Stanko
Keyword(s):  
Catchment Area ◽  
Present Condition ◽  
Urban Catchment ◽  
Analysis And Design ◽  
Current State ◽  
Sewer Network

The aim of the study is to assess the hydraulic capacity of the sewer network and sewer collector recovery in the urban catchment area of Trnava.The analysis focuses on the evaluation of situations with different precipitation frequencies. Elaboration consists of modeling the current state of the assessed sewer collector B and subsequent loading of this collector by several block rainfalls. Based on the results of the analysis, the recovery of the sewer network proposed.

Équité environnementale et accessibilité aux parcs à Ho Chi Minh Ville (Vietnam)

2019 ◽  
Vol 29 (2) ◽  
pp. 135-158
Author(s):  
Anh Tu Hoang ◽  
Philippe Apparicio ◽  
Thi-Thanh-Hien Pham
Keyword(s):  
Catchment Area ◽  
Personnes Âgées ◽  
Groupes De Population

L’objectif de cet article est de poser un diagnostic d’équité environnementale quant à l’accessibilité aux parcs à Ho Chi Minh Ville (HCMV) pour quatre groupes de population (les enfants, les personnes âgées, les personnes faiblement et hautement scolarisées). Pour ce faire, deux mesures d’accessibilité calculées à partir de la distance réticulaire sont mises en œuvre dans les SIG : la distance au parc le plus proche (proximité immédiate) et la méthode du enhanced two-step floating catchment area (disponibilité en fonction de l’offre et de la demande). Puis, plusieurs modèles de régression sont construits avec, comme variables dépendantes, les mesures d’accessibilité et, comme variables indépendantes, les pourcentages des quatre groupes. Les résultats montrent que l’accessibilité aux parcs est très faible à HCMV : en moyenne, les habitants résident à 1,879 kilomètre du parc le plus proche et on retrouve uniquement 0,286 hectare de parc pour 1 000 habitants dans un rayon de deux kilomètres. De plus, les jeunes enfants subissent une double iniquité avec de plus faibles proximité et disponibilité de parcs comparativement au reste de la population.

Integrated development strategy of the catchment area of the Tisza river

2014 ◽  
pp. 31-36
Author(s):  
Pompei Cocean ◽  
Ana-Maria Pop ◽  
Lelia Papp
Keyword(s):  
Development Strategy ◽  
Catchment Area ◽  
Contemporary Literature ◽  
Great Emphasis ◽  
East Europe ◽  
South East Europe ◽  
Living Space ◽  
Main Challenge ◽  
Transnational Cooperation ◽  
Tisza River

The main challenge for mankind has always been to eliminate the borders of its living space, as well as to explore and discover its new faces. Contemporary literature strengthens this postulate. It is the preference of the experts of various fields in spatial analysis is to consider space to be repairable, changeable and organisable. In accordance with this axiom, the five affected countries in the catchment area of the Tisza river (Hungary, Romania, Ukraine, Slovakia and Serbia) worked out an integrated, mutual standpoint to support the problems of the catchment area and to exploit its opportunities with the aim to support transnational cooperation. They laid great emphasis on the existing resources which could become the driving force behind regional development directions. This study contains the summarised outcomes of the TICAD project (SEE/A 638/4.2./X) which was drawn up as a result of cooperation between renowned institutions of the five affected countries within the South East Europe Transnational Cooperation Programme (lead partner: VÁTI, Hungary).

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