Learn about QSWAT, the hydrological model SWAT in QGIS

SWAT is an open source model that can be used with GIS data to simulate hydrological processes in basins. The SWAT complement is a tool to evaluate soil and water and basin management. The QGIS interface is called QSWAT. The latest version is QSWAT 1.4 which was released on Feb. 2, 2017.

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Parameter Optimization Simulation for a Basin Model with HEC HMS

Model optimization involves adjusting parameter values so that the simulated results match stream flows as closely as posible. The software have two different search algorithms for the optimization as well as a variety of objective functions to measure the goodness of fit between simulated and observed stream flow.

Optimization trials are quite simple to set up and compute. This tutorial show the complete procedure to run a optimization for a hydrological model on a andean basin.

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Hydrological Modeling for an Andean Basin with HECMS

HEC HMS is a software developed by the US Corps of Engineers that implements a series of hydrological methods to represent different physical process of the water cycle. The tools and options of HEC HMS make it a very versatile and powerful software for the hydrological simulation of different escenarios as extreme events on arid regions, or water balances in wet climates.

This tutorial shows the complete procedure to set up and simulate the hydraulic response of a 8 hour storms over a 20 hour period, model results are intended to show maximum flows and flow development with time. The area of study is a andean basin that was divided on two sub-basins (high and low part), each one has their own storm precipitation data. The model consider the use of hydrological components as subbasin, reaches and sinks.

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Hydrological Modeling at Basin Scale with HEC HMS Tutorial

This tutorial is about the hydrological modeling at basin scale using different hydrological process as:

  • Evapotranspiration
  • Baseflow
  • Interception
  • Surface accumulation

The tutorial uses the Soil Moisture Accounting method and compares the results with observed flow measurement on the basin.

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Design and implementation of groundwater monitoring systems

A monitoring network is a system where the level and quality records that the groundwater describes are generated, become available and are evaluated. These records are consistent, representative and long lasting.

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Environmental flow determination by hidrological modeling

The world water legislation has a common challenge: distribute fresh water resources in a fair, efficient and sustainable way. Traditionally, agriculture, industry, mining and municipalities have competed for these limited resources.

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Climate change impact on watershed response

Mathematical models of global climate can reproduce many aspects of the physical climate system. General Circulation Models (GCMs) simulate physical processes in the atmosphere, ocean, cryosphere, and on land surface. Predictive scenarios on climate change will be applied to selected GCM models and their output will be used on the PRMS hydrologic simulations.

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Development of a watershed-based water balance

Water balance is known as the balance of water entering the system and the water that leaves within a specified time, but to understand it better we need to understand: what is a watershed? Unterstood as a whole, a unity, as a system, as the space bounded by the union of all the headers that form the main river through the territory drained by a single natural drainage system.

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Case studies of watershed-based water balance

A watershed can be defined as “the topographic area within which apparent surface water runoff drains to a specific point on a stream or to a waterbody such as a lake” (Shimon, 2010), this way a watershed works as a large water collector converting water inputs into runoff and water storage (Chavarri, 2012). Knowing watershed´s hydrological characteristics (precipitation, runoff, evapotranspiration, and groundwater infiltration) allows to evaluate spatial and temporal water resources availability, it is useful for water resources allocation and flow control. Water balance is a tool that allows knowing basin characteristics by application of the mass conservation principle or continuity equation (Rose, 2004; Essam, 2007), according to rhis principle, any difference between inputs and outputs must be reflected in a change in the storage of water within the budget area (UNESCO, 1988; Shimon, 2010).

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MOD16 for actual evapotranspiration measurement

This project is part of NASA/EOS project to estimate global terrestrial evapotranspiration from earth land surface by using satellite remote sensing data. MOD16 global evapotranspiration product can be used to calculate regional water and energy balance, soil water status; hence, it provides key information for water resource management.

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Soil cover system design for mine waste dumps

Surface water and groundwater surrounding a mining operation can be significantly affected by contaminated seepage from the Acid Rock Drainage (ARD) in waste-dumps and tailing deposits. An evaluation for prevention and mitigation of environmental impacts generated by the DAR is necessary to minimize impact to the environment.

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What about landsat LDCM for water resources?

A Landsat satellite was launched one Monday (Feb. 11, 2013) from the Vanderberg Air Force Base in California. The LDCM or Landsat Data Continuity Mission joined the 15-year-old Landsat 7 and the 30-year-old Landsat 5. Since satellites are attracted by earth’s gravity, the launch of new satellites is important to preserve the continuity of the image registration.

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Bioremediation of tailings and waste dumps

Mining processes of mineral extraction are neither completely efficient nor able to recover all expended and reusable reagents and chemicals from them. The process effluents known as tailings are generally stored in surface reservoirs; in recent times of high volume related to the current extensive exploitation of low grade ores. Environmental regulations become harder due to the present and long-term risks involved in the storage of high quantities of heavy metals and chemicals. It is also important to consider that tailings do not provide any financial gain to the mining company, representing an external cost for the operation.

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Groundwater monitoring system implementation

A monitoring system is a platform where level and quality records that describe groundwater resources are generated, made available and evaluated. These records are consistent, representative and long lasting. Managing the aquifer to local or regional level is required in order to have environmental managers with easy access for comprehensive, representative and reliable information.

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