scholarly journals Identifying Dominant Runoff Processes at a Regional Scale – A GIS - Based Approach

2017 ◽  
Vol 11 (2) ◽  
pp. 19-33
Author(s):  
Fagbohun Babatunde Joseph ◽  
Olabode Oluwaseun Franklin ◽  
Adebola Abiodun Olufemi
Keyword(s):  
Overland Flow ◽  
Expert Knowledge ◽  
Regional Scale ◽  
Field Investigation ◽  
Deep Percolation ◽  
Flood Prediction ◽  
Percolation Process ◽  
Least Area ◽  
Expected Increase

Abstract Identifying landscapes with similar hydrological characteristics is useful for the determination of dominant runoff process (DRP) and flood prediction. Several approaches used for DRP-mapping differ in respect to time and data requirement. Manual approaches based on field investigation and expert knowledge are time consuming and difficult to implement at regional scale. Automatic GIS-based approach on the other hand require simplification of data but are easier to implement and it is applicable on regional scale. In this study, GIS-based automated approach was used to identify the DRPs in Anambra area. The result showed that Hortonian Overland Flow (HOF) has the highest coverage of 1508.3 Km2 (33.5%) followed by Deep Percolation (DP) with coverage of 1455.3 Km2 (32.3%). Subsurface Flow (SSF) is the third dominant runoff process covering 920.6 Km2 (20.4%) while Saturated Overland Flow (SOF) covers the least area of 618.4 Km2 (13.7%) of the study area. The result reveal that considerable amount of precipitated water would be infiltrated into the subsurface through deep percolation process contributing to groundwater recharge in the study area. However, it is envisaged that HOF and SOF will continue to increase due to the continuous expansion of built-up area. With the expected increase in HOF and SOF and the change in rainfall pattern associated with perpetual problem of climate change, it is paramount that groundwater conservation practices be considered to ensure continued sustainable utilization of groundwater in the study area.

scholarly journals Identifying Dominant Runoff Processes at a Regional Scale – A GIS - Based Approach

2018 ◽  
Vol 12 (1) ◽  
pp. 19-33
Author(s):  
Babatunde Joseph Fagbohun ◽  
Oluwaseun Franklin Olabode ◽  
Abiodun Olufemi Adebola
Keyword(s):  
Overland Flow ◽  
Expert Knowledge ◽  
Regional Scale ◽  
Field Investigation ◽  
Deep Percolation ◽  
Flood Prediction ◽  
Percolation Process ◽  
Least Area ◽  
Expected Increase

Abstract Identifying landscapes with similar hydrological characteristics is useful for the determination of dominant runoff process (DRP) and flood prediction. Several approaches used for DRP-mapping differ in respect to time and data requirement. Manual approaches based on field investigation and expert knowledge are time consuming and difficult to implement at regional scale. Automatic GIS-based approach on the other hand require simplification of data but are easier to implement and it is applicable on regional scale. In this study, GIS-based automated approach was used to identify the DRPs in Anambra area. The result showed that Hortonian Overland Flow (HOF) has the highest coverage of 1508.3 Km2 (33.5%) followed by Deep Percolation (DP) with coverage of 1455.3 Km2 (32.3%). Subsurface Flow (SSF) is the third dominant runoff process covering 920.6 Km2 (20.4%) while Saturated Overland Flow (SOF) covers the least area of 618.4 Km2 (13.7%) of the study area. The result reveal that considerable amount of precipitated water would be infiltrated into the subsurface through deep percolation process contributing to groundwater recharge in the study area. However, it is envisaged that HOF and SOF will continue to increase due to the continuous expansion of built-up area. With the expected increase in HOF and SOF and the change in rainfall pattern associated with perpetual problem of climate change, it is paramount that groundwater conservation practices be considered to ensure continued sustainable utilization of groundwater in the study area.

scholarly journals GIS-Based Sub-Basin Scale Identification of Dominant Runoff Processes for Soil and Water Management in Anambra Area of Nigeria

2017 ◽  
Vol 6 (2) ◽  
pp. 80-93 ◽  
Author(s):  
Babatunde Joseph Fagbohun ◽  
Oluwaseun Franklin Olabode ◽  
Abiodun Olufemi Adebola ◽  
Francis Omowonuola Akinluyi
Keyword(s):  
Overland Flow ◽  
Expert Knowledge ◽  
Regional Scale ◽  
Field Investigation ◽  
Deep Percolation ◽  
Percolation Process ◽  
Basin Scale ◽  
Least Area ◽  
Expected Increase

AbstractIdentifying landscapes having comparable hydrological characteristics is valuable for the determination of dominant runoff process (DRP) and prediction of flood. Several approaches used for DRP-mapping vary in relation to data and time requirement. Manual approaches which are based on field investigation and expert knowledge are time demanding and difficult to implement at regional scale. Automatic GIS-based approach on the other hand require simplification of data but is easier to implement and it is applicable on a regional scale.In this study, GIS-based automated approach was used to identify the DRPs in Anambra area. The result showed that Hortonian overland flow (HOF) has the highest coverage of 1508.3 km2(33.5%) followed by deep percolation (DP) with coverage of 1455.3 km2(32.3%). Subsurface flow (SSF) is the third dominant runoff process covering 920.6 km2(20.4%) while saturated overland flow (SOF) covers the least area of 618.4 km2(13.7%) of the study area. The result reveal that considerable amount of precipitated water would be infiltrated into the subsurface through deep percolation process contributing to groundwater recharge in the study area. However, it is envisaged that HOF and SOF will continue to increase due to the continuous expansion of built-up area. With the expected increase in HOF and SOF, and the change in rainfall pattern associated with perpetual problem of climate change, it is paramount that groundwater conservation practices should be considered to ensure continued sustainable utilization of groundwater in the study area.

scholarly journals Determination in the District Area Galunggung Sukaratu as Strategic Areas Amusement

2016 ◽  
Vol 4 (1) ◽  
pp. 86
Author(s):  
Thomas Bustomi
Keyword(s):  
Action Research ◽  
Regional Scale ◽  
Evaluation Criteria ◽  
Policy Formulation ◽  
Regional Economic Growth ◽  
Business World ◽  
Tourism Sector ◽  
Research Action ◽  
Official Data

This study entitled “Determining Region Galunggung in District Sukaratu As Strategic Area Nature”. The purpose of this policy is to increase the activity of the business world in the tourism sector in KGG - KS so as to improve the regional economic growth both on a district or on a regional scale Tasikmalaya regency. The method used in this research is action research (action research) using a qualitative approach. Results of the study were divided into four categories: problem identification, determination of the terms of problem solving, determination of alternative policy formulation and determination of the alternative selected as the end result of this policy formulation. Official data are not obtained, shall be carried out exploration data / information through other means in order to identify the problems become whole / full. In this research, a lack of data / information that is experienced by the researchers can be overcome because there is input from the community although its accuracy is lower. Meanwhile, the establishment of technical provisions troubleshooting is done based on a reference from the rules of the policy object. Each process / stages of policy formulation are not always able to generate a specific output. Determination of the technical provisions of Resolution “or the theory of public policy referred to as” the evaluation criteria Resolution “is one very important part in the process of policy formulation.

Direct Determination of the Velocity of Vortices in High-Tc Superconductors by a Non-Equilibrium Method

1998 ◽  
Vol 12 (29n31) ◽  
pp. 3288-3291
Author(s):  
I. Kirschner ◽  
R. Laiho ◽  
A. C. Bódi ◽  
E. Lähderanta ◽  
I. Vajda
Keyword(s):  
Magnetic Field ◽  
Temperature Gradient ◽  
Vortex Motion ◽  
Direct Determination ◽  
Field Investigation ◽  
High Tc Superconductors ◽  
High Tc ◽  
Pinning Centers ◽  
Non Equilibrium

As is shown, thermally assisted vortex motion can come into being in high-T c superconductors due to the applied temperature gradient. Its behavior strongly depends on the local and global microstructure of the samples, moreover on the temperature and magnetic field. Investigation of the density, size and intensity of the pinning centers of specimens leads to the conclusion that the higher homogeneity immediately weakens and the lower one strenghtens the pinning, thus the former promotes and the latter impedes the vortex motion. The non-equilibrium experimental technique together with a.c. susceptibility measurements render possible the direct determination of the velocity of vortices. Depending on the actual microstructural state of samples it has the values between 6 × 10-2 mm/s and 18 × 10-2 mm/s in the case of Y-Ba-Cu-O specimens investigated.

scholarly journals DETERMINATION OF COST OF PRODUCTION IN CONDITIONS OF UNCERTAINTY OF ORDERS

2016 ◽  
Vol 4 (4) ◽  
pp. 499-504
Author(s):  
Ольга Глод ◽  
Olga Glod ◽  
Виктор Ланкин ◽  
Viktor Lankin
Keyword(s):  
Fuzzy Logic ◽  
Expert Knowledge ◽  
Small Enterprises ◽  
Methodological Basis ◽  
Cost Of Production ◽  
The Cost

The purpose of this paper is to examine the model to determine the cost of production of small enterprises. The methodological basis for the model is a fuzzy logic based on expert knowledge. As a result, in this paper we consider an example of the model, determined the cost of production of confectionery

scholarly journals TERENO: German network of terrestrial environmental observatories

2016 ◽  
Vol 2 ◽  
Author(s):  
Heye Reemt Bogena
Keyword(s):  
Regional Scale ◽  
Scale Up ◽  
Climate Change Impacts ◽  
Integrated Modelling ◽  
Small Scale ◽  
Catchment Scale ◽  
Terrestrial Environment ◽  
Regional Analyses ◽  
Research Facilities

Central elements of the TERENO network are “terrestrial observatories” at the catchment scale which were selected in climate sensitive regions of Germany for the regional analyses of climate change impacts. Within these observatories small scale research facilities and test areas are placed in order to accomplish energy, water, carbon and nutrient process studies across the different compartments of the terrestrial environment. Following a hierarchical scaling approach (point-plot-field) these detailed information and the gained knowledge will be transferred to the regional scale using integrated modelling approaches. Furthermore, existing research stations are enhanced and embedded within the observatories. In addition, mobile measurement platforms enable monitoring of dynamic processes at the local scale up to the determination of spatial pattern at the regional scale are applied within TERENO.

scholarly journals Effect of intestinal chylomicron secretory blockade on apolipoprotein synthesis in the newborn piglet

1992 ◽  
Vol 283 (1) ◽  
pp. 81-85 ◽  
Author(s):  
D D Black
Keyword(s):  
Small Intestine ◽  
Newborn Piglet ◽  
Mrna Levels ◽  
Cellular Regulation ◽  
Apo B ◽  
Normal Increase ◽  
Expected Increase

Pluronic L-81 is a hydrophobic surfactant which blocks intestinal chylomicron secretion at the pre-Golgi level without affecting triacylglycerol uptake and re-esterification. To study the effects of such blockade on apolipoprotein synthesis, newborn female piglets received 24 h intraduodenal infusions of low-triacylglycerol, or high-triacylglycerol with or without Pluronic L-81, diets, followed by determination of apolipoprotein (apo) B-48, A-I and A-IV synthesis and content and apo B and A-IV mRNA levels in the small intestine. Jejunal apo B-48 content, synthesis and mRNA levels were down-regulated below basal levels by the addition of Pluronic to the high-triacylglycerol infusion. The normal increase in apo A-I synthesis induced by triacylglycerol absorption was ablated in both jejunum and ileum, even though the expected increase in apo A-I content in jejunum still occurred. Although attenuated, the expected increase in jejunal apo A-IV synthesis and mRNA levels with triacylglycerol absorption was still present with Pluronic treatment. These results suggest very different mechanisms of cellular regulation and trafficking for the various apolipoproteins incorporated into nascent intestinal chylomicrons. Apo B may be specifically down-regulated by the chylomicron secretory blockade induced by Pluronic L-81.

Quantitative determination of sterols and other alcohols in overland flow from grazing land and possible source materials

2005 ◽  
Vol 39 (13) ◽  
pp. 2964-2978 ◽  
Author(s):  
David Nash ◽  
Rhys Leeming ◽  
Leigh Clemow ◽  
Murray Hannah ◽  
David Halliwell ◽  
...  
Keyword(s):  
Quantitative Determination ◽  
Overland Flow ◽  
Grazing Land ◽  
Source Materials

scholarly journals Debris-flow activity in five adjacent gullies in a limestone mountain range

2015 ◽  
Vol 42 (1) ◽  
Author(s):  
Klaus Schraml ◽  
Markus Oismüller ◽  
Markus Stoffel ◽  
Johannes Hübl ◽  
Roland Kaitna
Keyword(s):  
Debris Flow ◽  
Debris Flows ◽  
National Park ◽  
Regional Scale ◽  
Field Investigation ◽  
Mountain Range ◽  
Sediment Sources ◽  
Aerial Vehicle ◽  
Flow Activity ◽  
Local Variability

Abstract Debris-flows are infrequent geomorphic phenomena that shape steep valleys and can repre-sent a severe hazard for human settlements and infrastructure. In this study, a debris-flow event chro-nology has been derived at the regional scale within the Gesäuse National Park (Styria, Austria) using dendrogeomorphic techniques. Sediment sources and deposition areas were mapped by combined field investigation and aerial photography using an Unmanned Aerial Vehicle (UAV). Through the analysis of 384 trees, a total of 47 debris-flows occurring in 19 years between AD 1903 and 2008 were identified in five adjacent gullies. Our results highlight the local variability of debris-flow activi-ty as a result of local thunderstorms and the variable availability of sediment sources.

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