Past, present and future of subsurface urban heat islands in China and Germany - implications for geothermal development

中国和德国地下城市热岛的过去、现在和未来——对地热开发的影响

基本信息

批准号：
391979809
负责人：
Professor Dr. Peter Bayer
金额：
--
依托单位：
Abteilung Ingenieurgeologie
依托单位国家：
德国
项目类别：
Research Grants
财政年份：
2018
资助国家：
德国
起止时间：
2017-12-31 至 2022-12-31
项目状态：
已结题

来源：
https://gepris.dfg.de/gepris/projekt/391979809?language=en
关键词：
Past present future subsurface urban

项目摘要

Cities have their roots in the ground. Here are the basements of buildings, essential infrastructure, vital freshwater and renewable energy resources. Here, soil and groundwater temperatures appear substantially increased when compared to ambient undisturbed conditions, i.e. the so-called subsurface urban heat islands (SUHIs). Better understanding of the mechanisms forming SUHIs and of the differences between those in different regions will be crucial for developing recipes for proactive urban ground management in the future. The focus of this project is, for the first time, on the comparison of SUHIs in two Chinese and German cities, Nanjing and Cologne. Both research groups have substantial experience in SUHI research in their countries, and they have precious databases from past measurements of soil and groundwater temperature. The purpose is to complement these with a new collaborative measurement program, and to learn from past and present SUHI characteristics about the so far unknown long-term dynamics. By field and laboratory-based experimental work and numerical simulation of ground temperature evolution with transient land use development, the future evolution of SUHIs will be revealed. By comparing the conditions first in German and Chinese cities, and then in selected further cities worldwide, the driving factors in different urban environments will be identified. Ultimately, more reliable predictions of the future subsurface development also in other cities without detailed site investigation is facilitated.

城市扎根于地面。这是建筑物，基本基础设施，重要的淡水和可再生能源的地下室。在这里，与环境不受干扰的条件，即所谓的地下城市热岛（Suhis）相比，土壤和地下水温度显着升高。更好地理解形成Suhis的机制以及不同地区的机制对于未来为积极主动的城市地面管理开发食谱至关重要。该项目的重点是在两个中国和德国城市的南京和科隆之间的Suhis进行比较。两个研究小组在其国家的Suhi研究中都有丰富的经验，并且从过去的土壤和地下水温度测量中都有宝贵的数据库。目的是通过新的协作测量计划来补充它们，并从过去和现在的Suhi特征中学习有关迄今未知的长期动态的特征。通过基于实验室和实验室的实验工作以及对瞬时土地利用开发的地面温度演化的数值模拟，Suhis的未来演变将被揭示。通过比较德国和中国城市的首先条件，然后在全球选定的其他城市中进行比较，将确定不同城市环境中的驱动因素。最终，在没有详细地点调查的其他城市中，对未来地下开发的更可靠的预测也得到了促进。