MIDAS Open: UK daily weather observation data, v202407

The UK daily weather observation data contain meteorological values measured on a 24 hour time scale. The measurements of sunshine duration, concrete state, snow depth, fresh snow depth, and days of snow, hail, thunder and gail were attained by observation stations operated by the Met Office across the UK operated and transmitted within DLY3208, NCM, AWSDLY and SYNOP messages. The data span from 1887 to 2023. For details of observations see the relevant sections of the MIDAS User Guide linked from this record for the various message types.

This version supersedes the previous version of this dataset and a change log is available in the archive, and in the linked documentation for this record, detailing the differences between this version and the previous version. The change logs detail new, replaced and removed data. These include the addition of data for calendar year 2023.

This dataset is part of the Midas-open dataset collection made available by the Met Office under the UK Open Government Licence, containing only UK mainland land surface observations owned or operated by the Met Office. It is a subset of the fuller, restricted Met Office Integrated Data Archive System (MIDAS) Land and Marine Surface Stations dataset, also available through the Centre for Environmental Data Analysis - see the related dataset section on this record. Currently this represents approximately 95% of available daily weather observations within the full MIDAS collection.

英国每日气象观测数据集包含以24小时为时间尺度测得的气象参数值。日照时长、混凝土状态、积雪深度、新增积雪深度以及降雪、冰雹、雷暴与大风日数等观测项，由英国气象局（Met Office）在英国各地运营的观测站获取，并通过DLY3208、NCM、AWSDLY及SYNOP报文完成传输。数据集时间跨度为1887年至2023年。若需了解观测细节，请查阅本记录中针对各类报文类型所关联的MIDAS（Met Office Integrated Data Archive System）用户指南相关章节。

本版本已取代该数据集的过往版本，存档文件及本记录的关联文档中均提供更新日志，详述本版本与过往版本间的差异。更新日志详细说明了新增、替换及移除的数据内容，其中包含2023日历年的观测数据增补。

本数据集是英国气象局（Met Office）依据《英国开放政府许可》发布的Midas-open数据集集合（Midas-open dataset collection）的一部分，仅包含英国气象局所拥有或运营的英国本土陆地表面观测数据。该数据集是更完整的受限版英国气象局综合数据档案系统（MIDAS）陆地与海洋地面站数据集的子集，该完整数据集亦可通过环境数据分析中心获取，详情请查阅本记录的相关数据集章节。目前，本数据集约占完整MIDAS数据集集合中可用每日气象观测数据的95%。