Mapping shallow urban groundwater temperatures, a case study from Cardiff, UK
Mapping shallow urban groundwater temperatures, a case study from Cardiff, UK
复制标题
绘制城市浅层地下水温度图，英国卡迪夫的案例研究
DOI：
10.1144/qjegh2016-058
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发表时间：
2017
影响因子：
1.4
通讯作者：
D. Schofield
中科院分区：
文献类型：
--
作者：
G. Farr;A. Patton;D. Boon;D. James;B. Williams;D. Schofield
低焓地源供暖系统可以帮助我们减少对化石燃料的依赖，从而减少温室气体排放，提高能源安全。为了降低风险并支持城市地区地源加热系统的可持续发展、管制和管理，需要详细绘制地下水温度基线图。地下水温度在英国卡迪夫市的168个监测钻孔中进行测量，这些钻孔主要位于第四纪砂和砾石含水层。这些数据已被用于绘制英国首张全市浅层地下水温度地图。这张地图既可以用来支持地源供暖的发展，也可以作为衡量变化的详细基线。城市地下浅层地下水的温度比英国平均地下水温度高2摄氏度，而这种额外的热量是由城市热岛造成的。在第四纪浅层含水层中，季节波动带在地面以下7.1 ~ 15.5 m之间，平均为9.5 mbgl。包含第四纪和基岩含水层的更深层地下水温度剖面图表明，存在一个“人为影响带”，直到大约70 mbgl。
Low-enthalpy ground source heating systems can help to reduce our dependence on fossil fuels, in turn reducing greenhouse gas emissions and increasing energy security. To de-risk and support the sustainable development, regulation and management of ground source heating systems in urban areas, detailed baseline mapping of groundwater temperatures is required. Groundwater temperatures were measured in 168 monitoring boreholes primarily within a Quaternary sand and gravel aquifer in the city of Cardiff, UK. The data have been used to create the first city-wide map of shallow groundwater temperatures in the UK. This map can be used both to support development of ground source heating and to act as a detailed baseline from which to measure change. Shallow groundwater temperatures under the city were found to be 2°C warmer than the UK average groundwater temperature and this additional heat is attributed to the urban heat island. The zone of seasonal fluctuation varies from 7.1 and 15.5 m below ground level (mbgl) within the shallow Quaternary aquifer, averaging 9.5 mbgl. Deeper groundwater temperature profiles incorporating both the Quaternary and bedrock aquifers suggest that a ‘zone of anthropogenic influence’ exists down to about 70 mbgl.
影响因子：
11.4
作者：
S. Benz;P. Bayer;F. Goettsche;F. Olesen;P. Blum
通讯作者：
S. Benz;P. Bayer;F. Goettsche;F. Olesen;P. Blum