Impact of precipitation and evaporation change on flood runoff over Lake Baikal catchment

Grigor’ev, V. Yu.; Kharlamov, Maxim A.; Semenova, N. K.; Сазонов, А. А.; Chalov, Sergey

doi:10.1007/s12665-022-10679-0

Cited by 4 publications

(2 citation statements)

References 68 publications

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“…The situation with the frequency of floods and their consequences in Russia and the CIS as a whole is in line with global trends [6][7][8][9]. Severe floods can be distinguished in the basin of the Amur River [10], the drainage basin of Lake Baikal [11], the regions of the Sochi Black Sea Coast and Krasnodar Territory [12] and other regions. Catastrophic events with a flood depth of more than 1.5 m are among the most severe types of emergency situations.…”

Section: Introductionsupporting

confidence: 58%

The Problem of Effective Evacuation of the Population from Floodplains under Threat of Flooding: Algorithmic and Software Support with Shortage of Resources

et al. 2023

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Extreme flooding of the floodplains of large lowland rivers poses a danger to the population due to the vastness of the flooded areas. This requires the organization of safe evacuation in conditions of a shortage of temporary and transport resources due to significant differences in the moments of flooding of different spatial parts. We consider the case of a shortage of evacuation vehicles, in which the safe evacuation of the entire population to permanent evacuation points is impossible. Therefore, the evacuation is divided into two stages with the organization of temporary evacuation points on evacuation routes. Our goal is to develop a method for analyzing the minimum resource requirement for the safe evacuation of the population of floodplain territories based on a mathematical model of flood dynamics and minimizing the number of vehicles on a set of safe evacuation schedules. The core of the approach is a numerical hydrodynamic model in shallow water approximation. Modeling the hydrological regime of a real water body requires a multi-layer geoinformation model of the territory with layers of relief, channel structure, and social infrastructure. High-performance computing is performed on GPUs using CUDA. The optimization problem is a variant of the resource investment problem of scheduling theory with deadlines for completing work and is solved on the basis of a heuristic algorithm. We use the results of numerical simulation of floods for the Northern part of the Volga-Akhtuba floodplain to plot the dependence of the minimum number of vehicles that ensure the safe evacuation of the population. The minimum transport resources depend on the water discharge in the Volga river, the start of the evacuation, and the localization of temporary evacuation points. The developed algorithm constructs a set of safe evacuation schedules for the minimum allowable number of vehicles in various flood scenarios. The population evacuation schedules constructed for the Volga-Akhtuba floodplain can be used in practice for various vast river valleys.

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Section: Introductionsupporting

confidence: 58%

The Problem of Effective Evacuation of the Population from Floodplains under Threat of Flooding: Algorithmic and Software Support with Shortage of Resources

et al. 2023

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“…ERA5-Land is a reanalysis dataset with a spatial resolution of 0.1° × 0.1°, providing a consistent view of the evolution of land variables (Muñoz-Sabater et al, 2021). The temporal and spatial resolution of ERA5-Land makes this dataset useful for various land surface applications, such as flood or drought forecasting (Grigorev et al, 2022;Kageyama and Sawada, 2022). The four clusters identified as Revegetation -Humid area (RH), Revegetation -Semi-Humid area (RSH), Revegetation -Semi-Arid area (RSA), and Revegetation -Arid area (RA) were all driven by revegetation.…”

Section: Datamentioning

confidence: 99%

Hydrological Response to Vegetation Changes in the Yellow River Basin

Wang

Penny

et al. 2023

Preprint

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The Yellow River Basin (YRB) is confronted with significant conflicts between water, food, and ecology. A thorough understanding of the human stresses on eco-hydrological processes is essential for the sustainable management of the YRB. To simplify the complex nature-human interaction system, we developed an analysis framework based on vegetation change and the Budyko hypothesis. The intra-annual vegetation change was explored using phenological indicators, in addition to the inter-annual vegetation change represented by annual maximum NDVI. K-means clustering was used to identify seven patterns of vegetation change driven by different ecological projects, agricultural alterations, and climate change. To explore the hydrological responses to environmental changes revealed by vegetation, a distributed attribution analysis of runoff changes was conducted using the ERA5-Land dataset and an elasticity method based on the Budyko hypothesis. The results show that the hydrological-related landscape changed most in the semi-humid and semi-arid areas experiencing revegetation, and the aridity increased most in the upstream and downstream irrigation areas. Human-driven landscape changes contributed to 44.1% - 60.7% of the local runoff reduction within the YRB. Notably, agricultural changes intensified drought, similar to revegetation, and meanwhile, the combined effect of climate change and ecological engineering could magnify agricultural vulnerability. We propose the adoption of drought-tolerant crop planting and water transfer across watersheds to ensure water-food-ecology security.

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The climatic and river runoff trends in Central Asia: The case of Zhetysu Alatau region, the south-eastern part of Kazakhstan

Issaldayeva,

Alimkulov,

Raimbekova

et al. 2023

Heliyon

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Impact of precipitation and evaporation change on flood runoff over Lake Baikal catchment

Cited by 4 publications

References 68 publications

The Problem of Effective Evacuation of the Population from Floodplains under Threat of Flooding: Algorithmic and Software Support with Shortage of Resources

The Problem of Effective Evacuation of the Population from Floodplains under Threat of Flooding: Algorithmic and Software Support with Shortage of Resources

Hydrological Response to Vegetation Changes in the Yellow River Basin

The climatic and river runoff trends in Central Asia: The case of Zhetysu Alatau region, the south-eastern part of Kazakhstan

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