Comparative Influences of Precipitation and River Stage on Groundwater Levels in Near-River Areas

Sustainability

Incheol Kim²  Donggyu Park²  Doohyun Kyung²  Garam Kim²  Sunbin Kim¹  Junhwan Lee² 

[1] Coastal and Environmental Engineering Division, Korea Institute of Ocean Science and Technology, Ansan 15627, Korea;School of Civil and Environmental Engineering, Yonsei University, Seoul 03722, Korea;

关键词: groundwater level;    precipitation;    moving average;    river stage;    seasonal variation;    climate change;    correlation analysis;    estimation method;   

DOI  :  10.3390/su8010001

来源: mdpi

【 摘 要 】

The sustainable performance of foundations of various urban buildings and infrastructures is strongly affected by groundwater level (GWL), as GWL causes changes in the stress state within soil. In the present study, the components affecting GWL were investigated, focusing on the effects of precipitation and river stage. These components were analyzed using a six-year database established for hydrological and groundwater monitoring data. Five study regions for which daily measured precipitation, river stage, and GWL data were available were compared. Different periods of precipitation, geographical characteristics, and local surface conditions were considered in the analysis. The results indicated that key influence components on GWL are different depending on the hydrological, geological, and geographical characteristics of the target regions. River stage had the strongest influence on GWL in urban areas near large rivers with a high ratio of paved surface. In rural areas, where the paved surface area ratio and soil permeability were low, the moving average showed a closer correlation to GWL than river stage. A moving average-based method to predict GWL variation with time was proposed for regions with a low ratio of paved surface area and low permeability soils.

【 授权许可】

CC BY   
© 2015 by the authors; licensee MDPI, Basel, Switzerland.