Water Resources Information System

Need

World over, Water is becoming more and more a scarce and valuable resource and needs to be managed better. Vassar solutions in “Water Resource Information” provide visibility to various Water Assets and Environmental factors.

Solution

Vassar’s Water Resource Information System provide solutions to bring sensor data, mobile input data, mathematical model derived data, satellite data, web-based data and all other relevant data to one data platform to bring real time visibility to all the water related assets for a large state, county, district or block.

  • Rainfall
  • Ground Water
  • Reservoirs – Major, Medium and Minor
  • Soil Moisture
  • Rivers and Streams
  • Irrigation Canals
  • Environmental factors like temperature, humidity, sunshine, wind speed etc.
Value
  • All water and environment related data in one central place
  • One source of truth for all Water and Environmental factors related data
  • Heat maps and GIS portal for better visualization

Water Balance and Water Audit

Need

To manage a valuable resource like water, one needs to understand the amount of different water assets available and where and also be able to audit the supply, storage and usage/loss aspects. Vassar offers solutions for understanding Water Balance and Water Audit for a geography, Hydrological basin and for a given time period.

Solution

Using the Water Assets data from different sources, Vassar Solutions provides the Water Balance for a large geography like a state. This data can be drilled down from State to District to Block to Village giving real time water available at the Water Asset.

Water Audit Solutions from Vassar Labs take into account the following equation to show real time Water Audit for a particular political boundary, River Basin, Minor Basin and Micro Basin. The Water Audit can be done for a selected time period as well.

    Inflow

  • Inflow into State: Quantity received through major rivers
  • Rainfall: Real-time visibility into “mm” and Quantity received

    Change in Storage

  • Ground Water: Change in Ground Water Level and Storage in the period
  • Soil Moisture: Change in Soil Moisture level
  • Reservoirs: Change in Reservoir storage

    Outflow

  • Evapotranspiration:Remote Sensing Data. Evapotranspiration based on Temperature, Humidity and Wind Speed
  • Outflow to Sea: Quantity let out to the sea from major rivers
  • Utilization: Agricultural, Industrial and Residential utilization with some approximations
  • Surface and Sub-Surface Flows: Left over
Value
  • A large state can understand better the balance of Water Assets at any given point of time and also be able to do audits for a basin, geography or a time period
  • Facilitates better management of Water

Village Water Budget

Need

Participatory Water Management is key to better management of Water Resources and an interactive Decision Support system at a village level based on current Supply and Demand is required for the same.

Solution

The village water budget is a Decision Support System that computes the water supply and demand in a village taking into account different Demand and Supply factors. In the supply side, the Rainfall Supply, Water Conserved, Excess run-off information, Initial Soil Moisture, Groundwater Available & Water received from major reservoirs is taken into account. The demand side consists of demand from Agriculture, Domestic, Livestock & Industrial uses. The system shows a village to be Water Surplus/Deficit.

Value

The system shows the number of Water Conservation Structures and the amount of Water being conserved, excess Run-Off which can be conserved with additional WC structures.

Easy tool for Decision makers to design programs at village level for participatory water conservation and management.



Ground Water Resource Estimation

Need

Estimating Ground Water Resources is done manually at present and is done once in three years typically. There is a need to automate Ground Water Assessment, Categorization and Evaluation. This helps in understanding and visualizing the areas that are at various stages of exploitation of ground water.

Solution

Vassar Labs Ground Water Resource Estimation System integrates data from Rainfall, Ground Water Levels, Various Applied Irrigation data, Water demand data, draft and various geology components to compute recharge and draft through various components. The System brings all recharge, draft and hydro-geological components together to provide the full life-cycle view of ground water.

Value
  • Identify the villages and areas where Dynamic GW is Over Exploited, Under Exploited and Safe.
  • Better Water Conservation Management based on GW Recharge, draft and potential.
  • Automation of Ground Water Resource Assessment, Categorization and Evaluation.



Minor Reservoirs Vegetation Estimation

Need

To find the infiltration and the extent of infiltration in & around minor reservoirs.

Solution

A machine learning algorithm based on the Normalized Differential Vegetation Index (NDVI) and Normalized Differential Water Index (NDWI) is used for automatic classification and segmentation of satellite imagery to know the levels of vegetation in Minor Reservoirs. The system also tracks the vegetation on an on-going basis based on satellite imagery.

Value
  • Key stakeholders get information regarding the extent of vegetation in a minor reservoir thus impacting the water storage capacity.
  • Corrective actions can be planned and taken to ensure that the Minor Reservoirs are used to their maximum potential.
  • Audit and efficacy of jungle/vegetation clearing efforts of Minor Reservoirs.

Reservoir Management

Need

To have all the reservoir related information such as estimation of inflows and outflows based on Rainfall-Runoff, Demand, Gross Capacity, Current Storage and Flood Cushion etc. at a Reservoir type and River Basin view in a predictive Decision Support System.

Solution

A consolidated dashboard that uses IoT based sensors that tracks the Time-tagged information about the Full Reservoir Level information such as Current storage, Dead Storage, Flood cushion etc. Based on upstream releases and rainfall run-off routing, system computes inflow to reservoir along with specific rules that can be configured for each reservoir and helps in optimizing the releases from reservoir based on inflows – both predicted and current, demand and other factors that affect the operations of the reservoir.

Value
  • Based on predicted and current inflows, demand, flood cushion and other parameters, optimized reservoir releases.
  • Unified dashboard that gives a holistic view of the reservoir.

Soil Moisture based Irrigation and Canal Management

Need

No visibility of Water Flow at important points in the irrigation canal network and need for a decision support to advise releases based on Soil Moisture and Crop Needs.

Solution

To bring in transparency in the flow of water in canals, water level and soil moisture sensors are placed at critical locations.
This helps the stakeholders to
i) Regulate water to farms based on the soil moisture
ii) Raise advisories based on Crop Specific water requirement based on

  • Soil Type
  • Type of the crop
  • Age of the Crop
  • Soil Moisture content
Benefit
  • Transparency in water flows at different critical points in the canal network
  • Advisories based on Soil Moisture and required water content

Watershed Management

Need

A solution that looks at Rainfall-runoff, slope, LULC and other parameters and provides decision support on best possible sites for a Water Conservation structure and effectiveness of existing structures.

Approach

Vassar Labs solution for water shed management takes into account different parameters like Slope of the land, Land Use Land Cover, Soil texture, Location in the drainage network consisting of second and third order streams, existing water conservation structures and their capacity, Rainfall-runoff to identify best possible locations for new water conservation structures. It also provides the efficacy of existing water conservation structures and where new structures can be built to conserve and recharge ground water.

Benefit
  • Decision support for identification of new water conservation structures
  • Effectiveness of existing water conservation structures
  • Mobile app to guide the field staff