This paper discusses the experiences gained from designing, deploying and maintaining low-power wireless sensor networks in three geothermally active remote locations in Iceland. The purpose of deploying the network was to collect soil temperature data and investigate the impact of global warming on (sub)Arctic climate and subsequent carbon release. Functional networks from three sites with no direct access to power and the internet have been providing researchers with insight into the warming impacts since 2021. The network employs low-power wireless sensor nodes equipped with DASH7 communication protocol, providing real-time data and remote access to sensors and instruments deployed in the field. In addition to discussing the architecture and deployment of the network, we conduct a primary analysis using models and methods to demonstrate the feasibility of harvesting energy from the temperature gradient between geothermally active soil and air.

翻译：本文探讨了在冰岛三个地热活跃偏远地区设计、部署和维护低功耗无线传感器网络所获得的经验。部署该网络旨在收集土壤温度数据，并研究全球变暖对（亚）北极气候及后续碳排放的影响。自2021年以来，三个无法直接接入电网和互联网的站点所构建的功能性网络持续为研究人员提供关于气候变暖影响的观测数据。该网络采用配备DASH7通信协议的低功耗无线传感器节点，可实时获取数据并远程访问部署在野外的传感器与仪器。除讨论网络架构与部署实践外，我们通过模型与方法进行初步分析，论证了利用地热活跃土壤与空气间温度梯度进行能量收集的可行性。