International Journal of Advanced Remote Sensing and Gis, Oct 31, 2014
For many centuries village tanks have been the backbone of the village economy in South Asia. Tan... more For many centuries village tanks have been the backbone of the village economy in South Asia. Tank storage structures are the prime water source to store rainwater and help farmers during crop growing period and provide stability to agricultural production. This resource has to be utilized properly by carrying out the On Farm Developmental works in its command area. The objective of the present study is to develop a GIS based Agricultural management of tank irrigation information system to facilitate the planning, operation and management of tank system. The study area selected was the Maragathapuram tank in Villupuram district served by the Ponnaiyar River. Developing agricultural tank information system involves the collection of various information of the command area. This information can be recorded and stored as different layers in GIS in the form of spatial and non-spatial data and GIS has the capability of integrating and analyzing spatial, non-spatial and multi-layered information available in different formats in framing various strategies for agricultural management and for socio-economic development. GIS based information system is also capable of generating outputs in the form of maps, tables and graphs that will help the irrigation engineers, agriculturalists, farmers and Government officials to monitor their performance of the tank at any place and time and take necessary steps to manage the resources effectively.
Journal of Environmental Hydrology Volume 20 Paper 2 January 2012 1 Treated municipal wastewater ... more Journal of Environmental Hydrology Volume 20 Paper 2 January 2012 1 Treated municipal wastewater is used as an input water source for recharge of groundwater using the Soil Aquifer Treatment (SAT) method. The aim of this study is to assess the treated waste water quality performance before and after SAT by using short term soil column development for aquifer recharge applications. The water quality parameters considered during, before, and after SAT are Biological Oxygen Demand, pH, Total Suspended Solids (TSS), Nitrite and Nitrate. The quality of effluents is improved after passage through the soil layers in the soil columns. The final effluent quality from the soil columns of the different sites show different performance percentages. The infiltration rate varied in all soil columns due to development of clogging layer at the top of the soils. WATER QUALITY PERFORMANCE OF SOIL AQUIFER TREATMENT (SAT) USING MUNICIPAL TREATED WASTEWATER OF CHENNAI CITY, INDIA
Mango, being the most perishable fruit, is facing the highest post harvest losses in India. An em... more Mango, being the most perishable fruit, is facing the highest post harvest losses in India. An emphasis should be given to develop the post harvesting supply chain entities like cold storage units, food processing units and market outlets. This should be done because they are mostly concentrated in and around the consumer markets which provide very little facilities to the marginal farmers during harvesting. Hence a scientific approach is needed to evolve a methodology to identify the existing Supply Chain Management (SCM) problems and enhance the overall efficiency of SCM network. This study mainly deals with the creation of a scientific database for mango supply chain in the study area. This could be used for checking the adequacy of all entities involved in the supply chain of mango and for finding the suitable measures to enhance the efficiency of the supply chain using Geographical Information System (GIS) technique.
Accumulated Sediment layer thickness is an important parameter to assess the capacity lost in any... more Accumulated Sediment layer thickness is an important parameter to assess the capacity lost in any reservoir. The study focuses on assessing the quantity and depth of sediment layers at various points of Wellington reservoir using geophysical survey method. This electrical resistivity survey was done in fifteen locations in Wellington reservoir using ABEM Terrameter SAS 1000 with Schlumberger electrode arrangement. The data interpretation was carried out using IX1D v2 software. The results revealed that the resistivity of deposited sediments carried by inflow water ranges from, 0.8 Ωm to 58 Ωm and Sampling of sediments was done in those vertical electrical sounding points to validate the results and to characterize the type of soil. The thickness of sediments is around 4m near embankments and around 0.5 m thickness in the far ends of the reservoir. This study also revealed the native bed level of the reservoir and also the total volume of sediments of about 30.51 × 106 m3 which is re...
Objectives: To identify the current agricultural practices, challenges faced in paddy agriculture... more Objectives: To identify the current agricultural practices, challenges faced in paddy agriculture and analyse the water delivery performance of tank using RS and GIS. To review and compare the current agriculture practices with the BIS and other standards and to propose BMP’s for paddy cultivation. Methods/Analysis: Random sampling of survey was taken and frequency analysis was done by questionnaire. The performance of irrigation system was carried out by rainfall frequency analysis by using Weibull’s formula. The water delivery performance was obtained by NDVI analysis. The current practices of paddy agriculture is analysed and compared with BIS 15930 (Part 1): 2010, TNAU and FAO reports to provide BMPs for improving the productivity. Findings: The NDVI values classified as high, low and normal water delivery performance for years of 2002, 2006, 2009 and 2011. The percentage of area under high vegetation of paddy in the year 2002 was 28% and increased to 31% in the year 2011, becau...
Daily rainfall data was collected for the arid district of Ananthapuramu, Andhra Pradesh state, I... more Daily rainfall data was collected for the arid district of Ananthapuramu, Andhra Pradesh state, India from 1981 to 2016 at the sub-district level and aggregated to monthly, annual and seasonal rainfall totals and the number of rainy days. The objective of this study is to evaluate the homogeneity, trend, and trend change points in the rainfall data. After quality checks and homogeneity analysis, a total of 27 rain gauge locations were considered for trend analysis. A serial correlation test was applied to all the time series to identify serially independent series. Non-Parametric Mann-Kendall test and Spearman’s rank correlation tests were applied to serially independent series. The magnitude of the trend was calculated using Sen’s slope method. For the data influenced by serial correlation, various modified versions of Mann-Kendall tests (Pre-Whitening, Trend Free Pre-Whitening, Bias Corrected Pre-Whitening and two variants of Variance Correction Approaches) were applied. A signifi...
Many of the irrigation tanks are interconnected forming cascades, allowing surplus flow of the up... more Many of the irrigation tanks are interconnected forming cascades, allowing surplus flow of the upstream tanks(s) and return flow from the upstream command area(s) to reach the tank immediately downstream. This facilitates reuse of water in the command area of the downstream tank, ...
Rainfall is converted into runoff and reaches the river and it becomes river flow. Geomorphologic... more Rainfall is converted into runoff and reaches the river and it becomes river flow. Geomorphological Instantaneous Unit Hydrograph (GIUH) based approach, which uses the geomorphologic parameters, is used to simulate basin runoff. Compilation of the required database consists of various geomorphic and other hydrologic characteristics used by the GIUH model is facilitated using Geographical Information System (GIS). The main aim of this study is develop 1-Hr Unit Hydrograph (UH) from the GIUH using Linear Geomorphological Model (LGM) with the help of GIS. Valliyar is one of the sub basins of Kodaiyar River Basin in Tamil Nadu, India. Valliyar is 5th order stream. Sixteen possible paths are identified for stream order 5 and block diagram for each path is prepared. The overland region for each path is delineated and measured with the help of GIS. GIUH is developed for 15 minutes time step using probability density function. Lagging the GIUH, 1-Hr Unit Hydrograph (UH) is prepared.
This study analyses meteorological, hydrological and agricultural droughts of an area and integra... more This study analyses meteorological, hydrological and agricultural droughts of an area and integrates using GIS. For retrieving and querying the data stored in the database interactively by the user, the study further looks at creating the GIS based Drought Information System. Palar and Thamiravaruni river basins, located in Northeast and Southwest parts of Tamil Nadu State, India, respectively were selected
International Journal of Advanced Remote Sensing and Gis, Oct 31, 2014
For many centuries village tanks have been the backbone of the village economy in South Asia. Tan... more For many centuries village tanks have been the backbone of the village economy in South Asia. Tank storage structures are the prime water source to store rainwater and help farmers during crop growing period and provide stability to agricultural production. This resource has to be utilized properly by carrying out the On Farm Developmental works in its command area. The objective of the present study is to develop a GIS based Agricultural management of tank irrigation information system to facilitate the planning, operation and management of tank system. The study area selected was the Maragathapuram tank in Villupuram district served by the Ponnaiyar River. Developing agricultural tank information system involves the collection of various information of the command area. This information can be recorded and stored as different layers in GIS in the form of spatial and non-spatial data and GIS has the capability of integrating and analyzing spatial, non-spatial and multi-layered information available in different formats in framing various strategies for agricultural management and for socio-economic development. GIS based information system is also capable of generating outputs in the form of maps, tables and graphs that will help the irrigation engineers, agriculturalists, farmers and Government officials to monitor their performance of the tank at any place and time and take necessary steps to manage the resources effectively.
Journal of Environmental Hydrology Volume 20 Paper 2 January 2012 1 Treated municipal wastewater ... more Journal of Environmental Hydrology Volume 20 Paper 2 January 2012 1 Treated municipal wastewater is used as an input water source for recharge of groundwater using the Soil Aquifer Treatment (SAT) method. The aim of this study is to assess the treated waste water quality performance before and after SAT by using short term soil column development for aquifer recharge applications. The water quality parameters considered during, before, and after SAT are Biological Oxygen Demand, pH, Total Suspended Solids (TSS), Nitrite and Nitrate. The quality of effluents is improved after passage through the soil layers in the soil columns. The final effluent quality from the soil columns of the different sites show different performance percentages. The infiltration rate varied in all soil columns due to development of clogging layer at the top of the soils. WATER QUALITY PERFORMANCE OF SOIL AQUIFER TREATMENT (SAT) USING MUNICIPAL TREATED WASTEWATER OF CHENNAI CITY, INDIA
Mango, being the most perishable fruit, is facing the highest post harvest losses in India. An em... more Mango, being the most perishable fruit, is facing the highest post harvest losses in India. An emphasis should be given to develop the post harvesting supply chain entities like cold storage units, food processing units and market outlets. This should be done because they are mostly concentrated in and around the consumer markets which provide very little facilities to the marginal farmers during harvesting. Hence a scientific approach is needed to evolve a methodology to identify the existing Supply Chain Management (SCM) problems and enhance the overall efficiency of SCM network. This study mainly deals with the creation of a scientific database for mango supply chain in the study area. This could be used for checking the adequacy of all entities involved in the supply chain of mango and for finding the suitable measures to enhance the efficiency of the supply chain using Geographical Information System (GIS) technique.
Accumulated Sediment layer thickness is an important parameter to assess the capacity lost in any... more Accumulated Sediment layer thickness is an important parameter to assess the capacity lost in any reservoir. The study focuses on assessing the quantity and depth of sediment layers at various points of Wellington reservoir using geophysical survey method. This electrical resistivity survey was done in fifteen locations in Wellington reservoir using ABEM Terrameter SAS 1000 with Schlumberger electrode arrangement. The data interpretation was carried out using IX1D v2 software. The results revealed that the resistivity of deposited sediments carried by inflow water ranges from, 0.8 Ωm to 58 Ωm and Sampling of sediments was done in those vertical electrical sounding points to validate the results and to characterize the type of soil. The thickness of sediments is around 4m near embankments and around 0.5 m thickness in the far ends of the reservoir. This study also revealed the native bed level of the reservoir and also the total volume of sediments of about 30.51 × 106 m3 which is re...
Objectives: To identify the current agricultural practices, challenges faced in paddy agriculture... more Objectives: To identify the current agricultural practices, challenges faced in paddy agriculture and analyse the water delivery performance of tank using RS and GIS. To review and compare the current agriculture practices with the BIS and other standards and to propose BMP’s for paddy cultivation. Methods/Analysis: Random sampling of survey was taken and frequency analysis was done by questionnaire. The performance of irrigation system was carried out by rainfall frequency analysis by using Weibull’s formula. The water delivery performance was obtained by NDVI analysis. The current practices of paddy agriculture is analysed and compared with BIS 15930 (Part 1): 2010, TNAU and FAO reports to provide BMPs for improving the productivity. Findings: The NDVI values classified as high, low and normal water delivery performance for years of 2002, 2006, 2009 and 2011. The percentage of area under high vegetation of paddy in the year 2002 was 28% and increased to 31% in the year 2011, becau...
Daily rainfall data was collected for the arid district of Ananthapuramu, Andhra Pradesh state, I... more Daily rainfall data was collected for the arid district of Ananthapuramu, Andhra Pradesh state, India from 1981 to 2016 at the sub-district level and aggregated to monthly, annual and seasonal rainfall totals and the number of rainy days. The objective of this study is to evaluate the homogeneity, trend, and trend change points in the rainfall data. After quality checks and homogeneity analysis, a total of 27 rain gauge locations were considered for trend analysis. A serial correlation test was applied to all the time series to identify serially independent series. Non-Parametric Mann-Kendall test and Spearman’s rank correlation tests were applied to serially independent series. The magnitude of the trend was calculated using Sen’s slope method. For the data influenced by serial correlation, various modified versions of Mann-Kendall tests (Pre-Whitening, Trend Free Pre-Whitening, Bias Corrected Pre-Whitening and two variants of Variance Correction Approaches) were applied. A signifi...
Many of the irrigation tanks are interconnected forming cascades, allowing surplus flow of the up... more Many of the irrigation tanks are interconnected forming cascades, allowing surplus flow of the upstream tanks(s) and return flow from the upstream command area(s) to reach the tank immediately downstream. This facilitates reuse of water in the command area of the downstream tank, ...
Rainfall is converted into runoff and reaches the river and it becomes river flow. Geomorphologic... more Rainfall is converted into runoff and reaches the river and it becomes river flow. Geomorphological Instantaneous Unit Hydrograph (GIUH) based approach, which uses the geomorphologic parameters, is used to simulate basin runoff. Compilation of the required database consists of various geomorphic and other hydrologic characteristics used by the GIUH model is facilitated using Geographical Information System (GIS). The main aim of this study is develop 1-Hr Unit Hydrograph (UH) from the GIUH using Linear Geomorphological Model (LGM) with the help of GIS. Valliyar is one of the sub basins of Kodaiyar River Basin in Tamil Nadu, India. Valliyar is 5th order stream. Sixteen possible paths are identified for stream order 5 and block diagram for each path is prepared. The overland region for each path is delineated and measured with the help of GIS. GIUH is developed for 15 minutes time step using probability density function. Lagging the GIUH, 1-Hr Unit Hydrograph (UH) is prepared.
This study analyses meteorological, hydrological and agricultural droughts of an area and integra... more This study analyses meteorological, hydrological and agricultural droughts of an area and integrates using GIS. For retrieving and querying the data stored in the database interactively by the user, the study further looks at creating the GIS based Drought Information System. Palar and Thamiravaruni river basins, located in Northeast and Southwest parts of Tamil Nadu State, India, respectively were selected
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Papers by Krishnaveni Muthiah