奥地利地下水补给和水平衡的区域尺度评价

IF 4.7 2区地球科学 Q1 WATER RESOURCES

Journal of Hydrology-Regional Studies Pub Date : 2025-03-28 DOI:10.1016/j.ejrh.2025.102297

Hanna Zeitfogel, Mathew Herrnegger, Karsten Schulz

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引用次数: 0

摘要

研究区域研究区域为奥地利及其周边的跨界河流流域，面积为83 900 km2。研究重点了解区域地下水补给模式对可持续水资源管理至关重要。目前，奥地利缺乏完全空间分布的地下水补给图。这项研究的目的是建立一个全国性的水文模型，预测地下水补给和水平衡成分，径流和蒸散。采用1 km2空间分辨率和月分辨率的降雨径流COSERO模型。在模型校准中，评估了四个目标函数，以确定最适合我们建模目的的目标函数。此外，还集成了两阶段校准程序，以捕获水平衡动态和低流量特性。模型结果通过独立研究得到验证。该研究为世界气象组织（WMO） 1991-2020参考期提供了第一张奥地利范围内的完全空间分布的地下水补给图，以及更新的水平衡图。我们建立了一个一致的模型框架，作为未来气候变化影响评估的宝贵资源。模型模拟得出地下水长期平均补给速率为373 mm - 1年，650 mm - 1年径流和538 mm - 1年实际蒸散。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

Regional-scale assessment of groundwater recharge and the water balance for Austria

查看原文本刊更多论文

Regional-scale assessment of groundwater recharge and the water balance for Austria

Study Region

The study area covers Austria (83 900 km²) and neighboring regions with transboundary river basins.

Study Focus

Knowledge of regional groundwater recharge patterns is essential for sustainable water resource management. Currently, Austria lacks fully spatially distributed groundwater recharge maps. The study’s aim was to develop a nationwide hydrological model that predicts groundwater recharge and the water balance components runoff, and evapotranspiration.

We implemented the rainfall-runoff model COSERO with a 1 km² spatial and monthly temporal resolution. In model calibration, four objective functions were evaluated to determine the most suitable one for our modeling purpose. Additionally, a two-stage calibration procedure was integrated to capture both water balance dynamics and low-flow characteristics. Model results were verified against independent studies.

New Hydrological Insights for the Region

This study provides the first Austria-wide, fully spatially distributed groundwater recharge map for the World Meteorological Organization (WMO) reference period 1991–2020, along with updated water balance maps. We set up a consistent model framework, serving as a valuable resource for future climate change impact assessments.

The model simulations yielded a long-term average groundwater recharge rate in the magnitude of 373 mm year⁻¹, 650 mm year⁻¹ runoff, and 538 mm year⁻¹ actual evapotranspiration.

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来源期刊

Journal of Hydrology-Regional Studies Earth and Planetary Sciences-Earth and Planetary Sciences (miscellaneous)

CiteScore

6.70

自引率

8.50%

发文量

284

审稿时长

60 days

期刊介绍： Journal of Hydrology: Regional Studies publishes original research papers enhancing the science of hydrology and aiming at region-specific problems, past and future conditions, analysis, review and solutions. The journal particularly welcomes research papers that deliver new insights into region-specific hydrological processes and responses to changing conditions, as well as contributions that incorporate interdisciplinarity and translational science.