the amount and tendency of sedimentation and siltation reduces the efficiency of the reservoir; f... more the amount and tendency of sedimentation and siltation reduces the efficiency of the reservoir; for this, the local farmer dwells in the reservoir face water scarcity. The main objective of this study is to give priority for river sub -basins development by determine the hydrological parameters. Toposheet 65 k/5, k/6, k/7, k/10 and k/11 with scale 1:50,000 were used for drainage analysis. In this study, drainage network delineation and morphometric parameters were performed using onscreen digitization on 1:50,000 topographic maps through GIS environs. Sub-basins 9, 11, 13, 14, 17 and 21 obtained high priorities for soil conservation and management program. The study reveals watershed prioritization would be very useful in number of watershed management practices and soil conservation program for reducing rates of deposition and sedimentation in the basin especially in the reservoir. Keyword: Morphometry, Tandava river basin, GIS technology, watershed prioritization
Tandava River Basin experiencing undeterministic flood, overflow in the reservoir and soil erosio... more Tandava River Basin experiencing undeterministic flood, overflow in the reservoir and soil erosion due to surface runoff. This study aiming to blend the application of Remote Sensing (RS) and Geographic Information System (GIS) techniques to estimate surface runoff based on the land use/land cover, hydrological soil group, rainfall data (P), Potential Maximum Retention (S), Antecedent Moisture Condition (AMC), and Weighted Curve Number (CN). Soil Conservation Service (SCS) model is used for surface runoff estimation. The data for the above mention parameters are acquires from different governmental offices and all SCS model parameters are derived by using remote sensing and GIS techniques. From middle of June to October, the river basin as a whole and the remaining subbasins generated considerable amount of runoff because of monsoon season rainfall in these regions. During June to October, in most of the sub-basins, around 90% of annual runoff occurred except in the subbasin 1, 7 an...
Soil erodability that correlated with barren or void vegetation cover land has an outlandish resu... more Soil erodability that correlated with barren or void vegetation cover land has an outlandish result in the lower part of the study area. This study aim to analysis the soil erosion risk of G Madugula Mandal, Visakhapatnam district. The study combines both remote sensing and GIS techniques to obtain severe erosion risk zones in the study area by taking into consideration of ancillary data such as Soil, DEM and LandSat satellite data. The method verified and cross checked by ground truth data. The results show that, Very Low and Low classes are scattered in all over the study area due to the randomization of the Land units and represent almost 76.14% of the study area. The Very Low class is occupying 50.67% of the study area in correspondence to valley fills or foot slopes, where the low slope gradient allows the accumulation of materials transported by water or Ch. Vasudeva Rao, G. Ashenafi Tolessa, E. Aminnedu- Erosion risk identification study using RUSLE model in G. Madugula Mandal, Visakhapatnam District, A.P., India EUROPEAN ACADEMIC RESEARCH - Vol. II, Issue 9 / December 2014 12247 gravity. The High class is mainly concentrated in the Kumbidisingi Panchiteat at Solamulu and in a small unit in Solabham Panchiteat Mallipadu village representing 17.36% of the study area. Therefore, appropriate soil conservation measure should be taking place in order to further prevent soil loss.
Groundwater contamination due to sea water intrusion is a well known problem in Madhurawada panch... more Groundwater contamination due to sea water intrusion is a well known problem in Madhurawada panchayat( group of villages). This study attempt to give answers the hydrogeochemistry nature of groundwater chemical parameters in Madhurawada Panchayat. In the study we apply existing field bore well and dug well observation which incorporate with laboratory water sample examination according to WHO and BIS standards and of course indirect questioning with the villager. The result has shown the contamination level of EC, TDS, TH, Ca+, Na, Cl-, F-, and Fe in the Paradesipalem, Boravanipalem, KommadiJn, Marikavalasa, Thotlakonda, Jodugullapalem and Boddapalem in both bore well and dug wells above the limit of permissible limit for drinking limit. Calcium and magnesium are the dominant cations present in groundwater next to sodium and chloride in this region. Therefore, requisition should be taking at the time of groundwater usage.
Tandava River Basin experiencing undeterministic flood, overflow in the reservoir and soil erosio... more Tandava River Basin experiencing undeterministic flood, overflow in the reservoir and soil erosion due to surface runoff. This study aiming to blend the application of Remote Sensing (RS) and Geographic Information System (GIS) techniques to estimate surface runoff based on the land use/land cover, hydrological soil group, rainfall data (P), Potential Maximum Retention (S), Antecedent Moisture Condition (AMC), and Weighted Curve Number (CN). Soil Conservation Service (SCS) model is used for surface runoff estimation. The data for the above mention parameters are acquires from different governmental offices and all SCS model parameters are derived by using remote sensing and GIS techniques. From middle of June to October, the river basin as a whole and the remaining sub-basins generated considerable amount of runoff because of monsoon season rainfall in these regions. During June to October, in most of the sub-basins, around 90% of annual runoff occurred except in the sub-basin 1, 7 and 17.therefore such model helps to estimate surface runoff and support to take flood prevention measures, soil conservation action and Check dam recommendation.
the amount and tendency of sedimentation and siltation reduces the efficiency of the reservoir; f... more the amount and tendency of sedimentation and siltation reduces the efficiency of the reservoir; for this, the local farmer dwells in the reservoir face water scarcity. The main objective of this study is to give priority for river sub -basins development by determine the hydrological parameters. Toposheet 65 k/5, k/6, k/7, k/10 and k/11 with scale 1:50,000 were used for drainage analysis. In this study, drainage network delineation and morphometric parameters were performed using onscreen digitization on 1:50,000 topographic maps through GIS environs. Sub-basins 9, 11, 13, 14, 17 and 21 obtained high priorities for soil conservation and management program. The study reveals watershed prioritization would be very useful in number of watershed management practices and soil conservation program for reducing rates of deposition and sedimentation in the basin especially in the reservoir. Keyword: Morphometry, Tandava river basin, GIS technology, watershed prioritization
Tandava River Basin experiencing undeterministic flood, overflow in the reservoir and soil erosio... more Tandava River Basin experiencing undeterministic flood, overflow in the reservoir and soil erosion due to surface runoff. This study aiming to blend the application of Remote Sensing (RS) and Geographic Information System (GIS) techniques to estimate surface runoff based on the land use/land cover, hydrological soil group, rainfall data (P), Potential Maximum Retention (S), Antecedent Moisture Condition (AMC), and Weighted Curve Number (CN). Soil Conservation Service (SCS) model is used for surface runoff estimation. The data for the above mention parameters are acquires from different governmental offices and all SCS model parameters are derived by using remote sensing and GIS techniques. From middle of June to October, the river basin as a whole and the remaining subbasins generated considerable amount of runoff because of monsoon season rainfall in these regions. During June to October, in most of the sub-basins, around 90% of annual runoff occurred except in the subbasin 1, 7 an...
Soil erodability that correlated with barren or void vegetation cover land has an outlandish resu... more Soil erodability that correlated with barren or void vegetation cover land has an outlandish result in the lower part of the study area. This study aim to analysis the soil erosion risk of G Madugula Mandal, Visakhapatnam district. The study combines both remote sensing and GIS techniques to obtain severe erosion risk zones in the study area by taking into consideration of ancillary data such as Soil, DEM and LandSat satellite data. The method verified and cross checked by ground truth data. The results show that, Very Low and Low classes are scattered in all over the study area due to the randomization of the Land units and represent almost 76.14% of the study area. The Very Low class is occupying 50.67% of the study area in correspondence to valley fills or foot slopes, where the low slope gradient allows the accumulation of materials transported by water or Ch. Vasudeva Rao, G. Ashenafi Tolessa, E. Aminnedu- Erosion risk identification study using RUSLE model in G. Madugula Mandal, Visakhapatnam District, A.P., India EUROPEAN ACADEMIC RESEARCH - Vol. II, Issue 9 / December 2014 12247 gravity. The High class is mainly concentrated in the Kumbidisingi Panchiteat at Solamulu and in a small unit in Solabham Panchiteat Mallipadu village representing 17.36% of the study area. Therefore, appropriate soil conservation measure should be taking place in order to further prevent soil loss.
Groundwater contamination due to sea water intrusion is a well known problem in Madhurawada panch... more Groundwater contamination due to sea water intrusion is a well known problem in Madhurawada panchayat( group of villages). This study attempt to give answers the hydrogeochemistry nature of groundwater chemical parameters in Madhurawada Panchayat. In the study we apply existing field bore well and dug well observation which incorporate with laboratory water sample examination according to WHO and BIS standards and of course indirect questioning with the villager. The result has shown the contamination level of EC, TDS, TH, Ca+, Na, Cl-, F-, and Fe in the Paradesipalem, Boravanipalem, KommadiJn, Marikavalasa, Thotlakonda, Jodugullapalem and Boddapalem in both bore well and dug wells above the limit of permissible limit for drinking limit. Calcium and magnesium are the dominant cations present in groundwater next to sodium and chloride in this region. Therefore, requisition should be taking at the time of groundwater usage.
Tandava River Basin experiencing undeterministic flood, overflow in the reservoir and soil erosio... more Tandava River Basin experiencing undeterministic flood, overflow in the reservoir and soil erosion due to surface runoff. This study aiming to blend the application of Remote Sensing (RS) and Geographic Information System (GIS) techniques to estimate surface runoff based on the land use/land cover, hydrological soil group, rainfall data (P), Potential Maximum Retention (S), Antecedent Moisture Condition (AMC), and Weighted Curve Number (CN). Soil Conservation Service (SCS) model is used for surface runoff estimation. The data for the above mention parameters are acquires from different governmental offices and all SCS model parameters are derived by using remote sensing and GIS techniques. From middle of June to October, the river basin as a whole and the remaining sub-basins generated considerable amount of runoff because of monsoon season rainfall in these regions. During June to October, in most of the sub-basins, around 90% of annual runoff occurred except in the sub-basin 1, 7 and 17.therefore such model helps to estimate surface runoff and support to take flood prevention measures, soil conservation action and Check dam recommendation.
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Papers by Ashenafi Gurmu
Ch. Vasudeva Rao, G. Ashenafi Tolessa, E. Aminnedu- Erosion risk identification
study using RUSLE model in G. Madugula Mandal, Visakhapatnam District,
A.P., India
EUROPEAN ACADEMIC RESEARCH - Vol. II, Issue 9 / December 2014
12247
gravity. The High class is mainly concentrated in the Kumbidisingi Panchiteat at Solamulu and in a small unit in Solabham Panchiteat Mallipadu village representing 17.36% of the study area. Therefore, appropriate soil conservation measure should be taking place in order to further prevent soil loss.
Ch. Vasudeva Rao, G. Ashenafi Tolessa, E. Aminnedu- Erosion risk identification
study using RUSLE model in G. Madugula Mandal, Visakhapatnam District,
A.P., India
EUROPEAN ACADEMIC RESEARCH - Vol. II, Issue 9 / December 2014
12247
gravity. The High class is mainly concentrated in the Kumbidisingi Panchiteat at Solamulu and in a small unit in Solabham Panchiteat Mallipadu village representing 17.36% of the study area. Therefore, appropriate soil conservation measure should be taking place in order to further prevent soil loss.