Eddy covariance data measured at the CAP LTER flux tower located in the west Phoenix, AZ neighborhood of Maryvale from 2011-12-16 through 2012-12-31

The CAP LTER maintains a flux tower to facilitate neighborhood-scale investigations of atmospheric processes in a Phoenix, AZ suburb. Capitalizing on comprehensive measurements of energy (heat and radiation) and matter (water and carbon dioxide) exchanges between the atmosphere and the urban surface, this project adds significantly to research investigating how urbanization affects local weather, climate, and air quality. An antenna-mounted array of sophisticated sensors measuring temperature, humidity, and wind speed and direction at high temporal resolutions facilitates the calculation of energy and material fluxes. The residential setting where the tower is positioned was selected on account of the homogeneous building design (single-story, single-family, detached dwellings) representative of many neighborhoods throughout the greater Phoenix metropolitan area. To avoid the influence of localized turbulence and material fluxes created by anomalous surface objects, the antenna extends vertically approximately 75 ft to sample neighborhood-scale fluxes. This dataset contains 30-minute post-processed eddy covariance data measured at the CAP LTER tower located in the west Phoenix neighborhood of Maryvale from Dec 16 2011 to Dec 31 2012.

CAP长期生态研究站点（CAP LTER）搭建并运维了一座通量塔（flux tower），以支持美国亚利桑那州凤凰城郊区的社区尺度大气过程研究。本项目依托大气与城市下垫面之间能量（热量与辐射）和物质（水与二氧化碳）交换的综合观测数据，为探究城市化如何影响局地天气、气候与空气质量的研究提供了重要支撑。一套安装于天线的精密传感器阵列可实现高时间分辨率的温度、湿度、风速及风向观测，为能量与物质通量的计算提供支撑。通量塔选址的居住区采用了统一的建筑设计（单层独立独栋住宅），这一设计模式代表了大凤凰城都会区多数社区的典型特征。为规避异常地表物体引发的局地湍流与物质通量干扰，该天线垂直高度约75英尺，以采集社区尺度的通量数据。本数据集包含2011年12月16日至2012年12月31日期间，位于凤凰城西部玛丽维尔社区的CAP LTER通量塔所采集的30分钟级后处理涡动协方差（eddy covariance）数据。