Application of Geostatistical Methods to Estimate Groundwater Level Fluctuations
Publish place: International journal of Advanced Biological and Biomedical Research، Vol: 6، Issue: 1
Publish Year: 1397
نوع سند: مقاله ژورنالی
زبان: English
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شناسه ملی سند علمی:
JR_IJABBR-6-1_002
تاریخ نمایه سازی: 3 آذر 1398
Abstract:
Keeping the water table at a favorable level is quite significant for a sustainable management of groundwater plans. Various management measures need to know the spatial and temporal behavior of groundwater. Therefore, the measurement of groundwater levels are generally carried out at spatially random locations in the field; whereas, most of the groundwater models requires these measurement at a pre-specified grid. Geostatistical techniques could produce an accurate map of groundwater level. Naishaboor plain with 4190 sq km was selected due to presence of over 48 observation wells, mostly with more than 20 years of record. A universal kriging and co-kriging - with level of surface as auxiliary variable - estimator has been used to model groundwater level for three kind of climate condition (wet, normal and dry) and three levels (maximum, average and minimum). The result showed the Gaussian model selected as the best variogram. Furthermore, the RMSE and MRE indicated that kriging method was more accurate than co-kriging in mapping the groundwater level; although, there was not distinct difference.
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Authors
Khaled Ahmadaali
Assistant Professor, Department of Arid and Mountainous Regions Reclamation, Faculty of Natural Resource, University of Tehran, Iran
Hamed Eskandari Damaneh
PhD Student of Desertification, Faculty of Natural Resource, University of Tehran, Iran
Bahareh Jabalbarezi
M.Sc. Expert in Management of Desertification, Faculty of Natural Resource, University of Tehran, Iran
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