SE.ACMF Meteorological observations — Wind direction hourly value

Purpose: Describes current weather and over time the climate. Basis for forecasting and climate studies. Unit: degrees Characteristics: Wind direction measured at measuring stations. Average over 10 minutes each and every three hours. Design: Date, time value and quality. Quality codes: Green = Verified and accepted values. Yellow = Suspected values, aggregated values, roughly controlled archive data and uncontrolled real-time data (last 2 hours). Limits: 0 to 360 degrees (When the wind speed is 0 m/s, the wind direction is set to 0 degrees. 360 degrees represent the north, 90 degrees east, etc.) For more info see: https://www.smhi.se/data/meteorologi/vind Delivery: Data is delivered in two different ways. 1. Via a user interface where measurement series can be downloaded for one station at a time. Data can be downloaded for the last 24 hours, the last four months or the full time series except for the last three full months (historical reviewed). 2. Via a machine-machine solution (Atom flow rate). There, the same measurement series as above can be obtained as well as real-time data. These are the last hour’s readings. They can be retrieved for one measuring station at a time or for all active measuring stations.用途：描述当前天气及随时间演变的气候状况，为天气预报与气候研究提供核心依据。 单位：角度。 数据特征：由地面气象观测站实测风向，每3小时对连续10分钟的观测结果取一次平均值。 数据字段构成：包含日期、时间戳与质量标识字段。 质量编码规则：绿色标识代表经核验通过的有效数据；黄色标识涵盖疑似异常值、聚合值、经过初步管控的归档数据，以及未经过滤校验的近2小时实时观测数据。 取值范围：0至360角度。注：当风速为0米/秒时，风向取值固定为0度；其中360度对应正北，90度对应正东，其余方位依此类推。 更多详情请参阅：https://www.smhi.se/data/meteorologi/vind 数据交付方式：提供两种数据交付渠道： 1. 用户界面下载：支持单次单站获取观测序列数据，可下载的时间范围包括近24小时、近4个月，以及除近3个完整自然月外的完整历史观测序列（已完成审核的历史数据）。 2. 机器对机器（M2M）方案（Atom 数据流）：可获取上述同类型的观测序列数据，同时支持获取近1小时的实时观测数据。该渠道支持单次单站检索，或一次性获取全部活跃观测站的观测数据。