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）维护了一座通量塔，以支持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的能量（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。塔上搭载了一套天线阵列式精密传感器，可实现高时间分辨率的气温、湿度、风速与风向测量，借此可计算能量与物质通量。通量塔选址的居民区采用了均匀一致的建筑设计——单层独立独栋住宅，这一特征能够代表大凤凰城都会区的多数社区。为避免异常地表物体引发的局地湍流与物质通量干扰，天线垂直架设高度约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通量塔所测得的30分钟后处理涡动协方差观测数据。