Sensitivity Analysis for Effect of Changes in Input Data on Hydrological Parameters and Water Balance Components in the Catchment Area of Hungarian Lowland

Tran, Hop Quang

doi:10.2478/jengeo-2021-0007

Cited by 2 publications

(2 citation statements)

References 12 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Two catchments were chosen for the current study, where sufficient spatial data was available to enable the calibration of a proper model (Nagy et al, 2019). The calibration was performed by the sensitivity analysis of the changing input parameters of the model (Tran, 2021). By considering the future climatic scenarios and past extreme precipitation conditions, future trends of water balances were simulated.…”

Section: Methodsmentioning

confidence: 99%

Climate change as an environmental threat on the central plains of the Carpathian basin based on regional water balances

Quang¹,

Fehér²,

Túri³

et al. 2022

Geographica Pannonica

View full text Add to dashboard Cite

Climate change is an essential environmental challenge nowadays. Its effects are already being felt in multiple ways. In the future, we will also have to adapt to its effects because of our farming and our daily lives. In our research, we assessed the climate sensitivity of the lowland areas of Hungary through the changes in landscapes and the changes in groundwater resources that have the greatest impact on agriculture, using data from more than half of a century. We have quantified that at the mid-territory level (5-10 thousand km2) the groundwater resources show up to 3-5 km3/year changes in both positive and negative directions due to climatic effects. This significantly exceeds the anthropogenic water uses (the total water use of Hungary is about 5 km3 per year), so the effect of climate is the determining factor in the changes of regional water resources. Future changes in water circulation were modelled using the MIKE-SHE model in two micro-regions in Hungary. We have found that already at the level of the small catchments presented in our study, the water shortage increases by hundreds of millions of m3 per year due to the expected increase in temperature (mainly due to the increase in evapotranspiration), which cannot be compensated by current water supply solutions. Model simulations have confirmed previous results showing that groundwater movements play a very important role even in lowland landscapes. Based on our research, we would like to draw the attention of decision-makers and agricultural experts to the fact that current methods (irrigation, regional water transfers) are not sufficient for successful adaptation to climate change. So, it is not the limited precipitation but the inappropriate agricultural practices that cause a real threat in a changing climate. Based on our research, we have made a proposal for the adaptation of agriculture to climate change.

show abstract

Section: Methodsmentioning

confidence: 99%

Climate change as an environmental threat on the central plains of the Carpathian basin based on regional water balances

Quang¹,

Fehér²,

Túri³

et al. 2022

Geographica Pannonica

View full text Add to dashboard Cite

show abstract

“…ParFlow's water balance conceptual models are incomplete because, in fact, the groundwater division is difficult to determine; in many cases, the watershed of surface water and groundwater do not coincide, even in some basins, for example, in Dong-er catchment, surface water flow depends largely on underground flow from outside (Tran, 2021).…”

Section: Parflowmentioning

confidence: 99%

Water balance calculation capability of hydrological models

Tran

Feher

2022

AAK

Self Cite

View full text Add to dashboard Cite

Currently, in the world, there are many different hydrological models built and developed to solve problems related to the hydrological cycle. Each model has its specific mathematical foundations to describe physical processes in nature. Therefore, each model has its various characteristics: setting up the model, input data requirements, model calibration and verification, and output results. Water balance is still playing an important role in the effective management and use of water resources for agriculture. Based on the results of the hydrological parameter’s calculation, the water balance of the study basin can be calculated by the user or by the separated module of each model. Each hydrological models have its advantages and disadvantages. However, it is impossible to simulate hydrological processes and water balance completely accurately in nature. Still, simulation results can give us a view of the changing trend of hydrological components and the water balance. Model developers are gradually completing the shortcomings and improving the efficiency and accuracy so that the model can simulate reality with the highest accuracy. This paper sets out to review the fifteen hydrological models currently widely used in the world. Within the frame of the present study, some models are only briefly introduced; the rest are considered in more detail, from more aspects, from specific examples so that readers can decide for themselves which model is suitable for their study area and simulation needs, especially in the identity of the complex and unpredictable impacts of climate change on the agricultural sector.

show abstract

Sensitivity Analysis for Effect of Changes in Input Data on Hydrological Parameters and Water Balance Components in the Catchment Area of Hungarian Lowland

Cited by 2 publications

References 12 publications

Climate change as an environmental threat on the central plains of the Carpathian basin based on regional water balances

Climate change as an environmental threat on the central plains of the Carpathian basin based on regional water balances

Water balance calculation capability of hydrological models

Contact Info

Product

Resources

About