This article reports the outcomes of the FAIRNESS COST Action (CA20108), a coordinated European initiative aimed at advancing micrometeorological data toward compliance with the FAIR (Findable, Accessible, Interoperable, Reusable) principles. The article presents three core achievements: (i) a structured inventory of urban and rural micrometeorological networks across Europe; (ii) the design and deployment of the FAIR Micrometeorological Portal, providing a digital infrastructure for data discovery, access, and standardized metadata description; and (iii) methodological guidance for quality control, gap detection, and gap filling tailored to the specific characteristics of micrometeorological time series. By providing both technical infrastructure and community-driven standards, the FAIRNESS outputs advance micrometeorological data from isolated datasets into coherent, reusable resources. Beyond technical developments, the FAIRNESS systematically addressed gaps in knowledge and skills within the micrometeorological community. A key outcome is the beginner-oriented book Micrometeorological Measurements - An Introduction for Beginners, which provides structured guidance on measurement design, instrumentation, data management, and quality assurance. In parallel, FAIRNESS implemented a comprehensive capacity-building programme, including summer schools, workshops, and short-term scientific missions, targeting both domain-specific competencies and transferable skills such as FAIR data stewardship, interdisciplinary collaboration, and practical problem solving. Together, these efforts contribute to strengthening the long-term usability of micrometeorological data and fostering a more integrated, FAIR-oriented research culture within the European meteorological community.

翻译：本文报告了 FAIRNESS 欧洲科技合作行动（CA20108）的成果，这是一项旨在推动微气象数据符合 FAIR（可查找、可访问、可互操作、可复用）原则的欧洲协调倡议。文章阐述了三大核心成就：（i）欧洲城乡微气象网络的结构化清单；（ii）设计并部署了公平微气象门户，为数据发现、访问和标准化元数据描述提供了数字基础设施；（iii）针对微气象时间序列的特殊性，提供了质量控制、数据缺失检测及填补的方法论指导。通过提供技术基础设施和社区驱动标准，FAIRNESS 项目的产出将微气象数据从孤立数据集转变为连贯、可复用的资源。除技术开发外，FAIRNESS 还系统性地解决了微气象界在知识与技能方面的短板。一项关键成果是面向初学者的著作《微气象测量——初学者导论》，该书为测量设计、仪器选型、数据管理和质量保证提供了结构化指导。与此同时，FAIRNESS 实施了一项全面的能力建设计划，包括暑期学校、研讨会和短期科学任务，重点培养领域专业技能，如 FAIR 数据管理、跨学科协作和实际问题解决等可迁移能力。这些努力共同促进了微气象数据的长期可用性，并在欧洲气象学界内培育了一种更加一体化、以 FAIR 为导向的研究文化。