Groundwater temperature as a tracer to estimate anthropogenic impacts: Past, present and future

Luminda Gunawardhana*, So Kazama

*المؤلف المقابل لهذا العمل

نتاج البحث

ملخص

We evaluated the potential variations of aquifer temperature attributed to anthropogenic effects in the past, present, and future in the Sendai Plain, Japan. To simulate the heat transport in the subsurface layers, the USGS numerical code (VS2DH) was used. For the climate predictions, HADCM3, MIROC and ECHAM5 models under the A2, A1B and Bl scenarios were used. The overall results from nine scenarios estimate 0.7-2.1°C subsurface temperature change in 2100 at 12 m depth which is notably higher than the past urbanization effect seen in Sendai. Moreover, groundwater temperature was considered as a proxy to develop a relationship between urbanization level and ground-surface temperature change. Results suggest that approximately 0.6°C ground surface temperature reduction can be achieved in the long-term by reducing the urban ratio by 10% in highly urbanized areas. These results imply the necessity of considering aquifer temperature variations attributed to climate change in habitat restoration programmes.

اللغة الأصليةEnglish
عنوان منشور المضيفConceptual and Modelling Studies of Integrated Groundwater, Surface Water, and Ecological Systems
الصفحات10-16
عدد الصفحات7
حالة النشرPublished - 2011
الحدثSymposium H01 on Conceptual and Modelling Studies of Integrated Groundwater, Surface Water, and Ecological Systems, Held During the 25th General Assembly of the International Union of Geodesy and Geophysics, IUGG 2011 - Melbourne, VIC
المدة: يونيو ٢٨ ٢٠١١يوليو ٧ ٢٠١١

سلسلة المنشورات

الاسمIAHS-AISH Publication
مستوى الصوت345
رقم المعيار الدولي للدوريات (المطبوع)0144-7815

Other

OtherSymposium H01 on Conceptual and Modelling Studies of Integrated Groundwater, Surface Water, and Ecological Systems, Held During the 25th General Assembly of the International Union of Geodesy and Geophysics, IUGG 2011
الدولة/الإقليمAustralia
المدينةMelbourne, VIC
المدة٦/٢٨/١١٧/٧/١١

ASJC Scopus subject areas

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