Water Level Measurements; Gensburg Markham Prairie; 2016-2017

Gensburg Markham Prairie comprises over 100 acres of well-preserved tallgrass prairie and wetland south of Chicago and is one of the Indian Boundary Prairies in Illinois. A U.S. National Natural Landmark, this site is valuable as a sentinel ecosystem for changing regional climate and a reference ecosystem for restoration and management of urban prairie nature preserves. In June of 2016, 10 piezometers containing water level sensors (InSitu LevelTroll 400 pressure transducers) were installed throughout the prairie, in addition to 8 of the same sensors deployed in ditches and surface channels in and around the prairie. The installation coincided with soil sampling and manual-visual characterization at each well location. Each sensor collects a water level measurement every 30 minutes. This installation and sampling campaign is a part of larger effort to assess surface water and groundwater dynamics in urban environments. Additional sensors, including soil moisture and electrical conductivity probes and a rain gauge, provide supplementary data for this project. This resource includes one year of data, from the installation of the sensors to the same date the following summer, capturing the effects of an unusually warm winter in the Chicago metro with very little snow and no extreme temperatures.

贡斯堡-马克汉姆草原位于芝加哥南部，占地面积超过100英亩，保留着完好的高草草原和湿地，是伊利诺伊州印度边界草原之一。作为美国国家自然地标，该地区作为区域气候变化监测的生态系统以及城市草原自然保护区恢复和管理的参照生态系统，具有重要的价值。2016年6月，在草原及其周边的沟渠和地表渠道中安装了10个含水位传感器的压力传感器（InSitu LevelTroll 400压力传感器），此外，还部署了8个相同的传感器。这一安装与在各个井位进行的土壤采样和手动视觉特征描述同时进行。每个传感器每30分钟收集一次水位测量数据。此次安装和采样活动是评估城市环境中地表水和地下水动态的更大努力的一部分。此外，包括土壤水分和电导率探头以及雨量计在内的额外传感器，为此项目提供了补充数据。本资源包含了一年的数据，从传感器的安装到次年夏季同一日期，记录了芝加哥大都会区异常温暖的冬季，几乎无雪且无极端温度的影响。