Bundaberg Urban Glow Data

This dataset represents measurements collected from a network of 75 urban glow sensors within the Bundaberg Region. The principal data sets are point data representing the readings from the Sky Quality Meter (SQM) sensors. Data from all sensors are processed every 15 minutes using natural neighbour interpolation to generate a raster of urban glow across two sub-networks (City and Coastal).\r\n\r\n__Vector Point Data__\r\n\r\nThe point data are contained as individual feature classes for each processing time within an ArcGIS file geodatabase\r\n\r\n* ID: The SQM site identifier\r\n* Description: The locality and the number of the SQM in that locality.\r\n* deviceGroup: The categorisation of the SQM devices for processing of the data within sub-networks (i.e. coastal network or city network)\r\n* obsLocalTime: The date and time in Australian Eastern Standard time (UTC+10) of the observation\r\n* magnitude: SQM reading is a numeric value indicating the relative brightness of the night sky. Lower numbers indicate a brighter sky, while higher numbers indicate a darker sky. A dark sky with minimal light pollution typically registers as 22 or above. Units are measured in magnitudes per square arc second.\r\n* skyTemp: The temperature of the nearest object (i.e. clouds) in a 10 degree field of view above the sensor. This value will be low if there is nothing, but higher if there is cloud.\r\n* ambTemp: Measurement of ambient air temperature taken at the specified point in time.\r\n* cloudCover: skyTemp & ambTemp reading values are translated as follows:\r\n * no cloud cover\r\n * minimal effects from cloud cover\r\n * moderate/medium effects from cloud cover\r\n * high impact from cloud cover\r\n\r\n__Raster Data__\r\n \r\nA Natural Neighbour interpolation has been performed using the sites with valid SQM values to produce a Geotiff raster to depict the hot spots or bright areas of urban glow\r\n\r\n__Mapbooks__\r\n\r\nThe input points and the generated hotspot raster are compiled into a nightly PDF map book for easy interpretation of the results.\r\n\r\nThe Reducing Urban Glow project page can be found here https://www.bundaberg.qld.gov.au/environment/reducing-urban-glow本数据集涵盖班达伯格（Bundaberg）区域内75个城市夜光传感器网络采集的测量数据。核心数据集为表征天空质量计（Sky Quality Meter, SQM）传感器读数的点数据。所有传感器的采集数据每15分钟会通过自然邻域插值法进行处理，以生成覆盖两个子网络（城区与沿海片区）的城市夜光分布栅格图层。 ## 矢量点数据 矢量点数据以独立要素类的形式，按每个处理时刻存储于ArcGIS文件地理数据库中，各字段说明如下： * **ID**：天空质量计站点标识符 * **Description**：所在区域及该区域内天空质量计的编号 * **deviceGroup**：用于对子网络（即沿海网络或城区网络）内的数据进行处理的天空质量计设备分类标签 * **obsLocalTime**：观测时刻的澳大利亚东部标准时间（UTC+10） * **magnitude**：天空质量计读数，为表征夜空相对亮度的数值。数值越低代表夜空越亮，数值越高则代表夜空越暗。光污染极低的暗夜环境通常读数为22及以上，单位为每平方角秒星等（magnitudes per square arc second） * **skyTemp**：传感器上方10度视场内的近场温度（即云层温度）。无遮挡物时该数值偏低，存在云层时则偏高 * **ambTemp**：对应时刻采集的环境空气温度 * **cloudCover**：基于skyTemp与ambTemp的观测值得到的云量影响等级，分为以下四类： * 无云覆盖 * 云覆盖影响极小 * 云覆盖影响中等/一般 * 云覆盖影响显著 ## 栅格数据 通过对拥有有效天空质量计读数的测点执行自然邻域插值，生成了用于展示城市夜光热点区域（即亮度较高区域）的GeoTIFF栅格图层。 ## 制图册 输入点数据与生成的热点栅格数据会被整合为每日更新的PDF制图册，以便于直观解读分析结果。 可通过以下链接访问“减轻城市光污染”项目页面：https://www.bundaberg.qld.gov.au/environment/reducing-urban-glow