Stream Temperature - Cinder Pipe (CNDP) Water year 2004-2005

Stream Temperature: Site: Cinder Pipe (CNDP): In the Baltimore urban long-term ecological research (LTER) project, (Baltimore Ecosystem Study, BES) we use the watershed approach to evaluate integrated ecosystem function. The LTER research is centered on the Gwynns Falls watershed, a 17,150 ha catchment that traverses a gradient from the urban core of Baltimore, through older urban residential (1900 - 1950) and suburban (1950- 1980) zones, rapidly suburbanizing areas and a rural/suburban fringe. Stream temperature is continuously measured throughout the Gwynns Falls watershed along with supplemental sites around Baltimore County/City. A total of 22 sites contain sensors (HOBO Pro v2 Water Temperature Data Logger - U22-001) that take an instantaneous temperature reading every 2 minutes. These data are downloaded on a monthly basis. This dataset is for Cinder Pipe, a storm drain outlet to the main stem of Spring Branch just off Cinder Road in Timonium, Maryland. The area draining the pipe is about 39 ha and is 8% forested and 22% impervious. Watershed information was taken from delineations created with USGS StreamStats at http://water.usgs.gov/osw/streamstats/maryland.html Purpose: Long-term monitoring of stream temperature in a suburban catchment. Theme keywords: stream, watershed, temperature, suburban, Baltimore Ecosystem Study Coordinates: Lat/Long 39.4408 (39 26 27) -76.6097 (-76 36 35) Review process for BES stream temperature data: Raw data were recorded and logged every 2-minutes using HOBO Pro v2 Water Temperature Data Logger - U22-001. Data are exported into Microsoft Excel documents. Then organized by site and by month Each month's data were entered into a pivot table in Microsoft Excel and daily means and counts of daily data points were calculated. Plots were graphed of sites with close geographic proximity on the same graph to illustrate possible outlier data. Missing and odd data were flagged, and notes taken from the field visits are provided where applicable.

溪流温度：站点：煤渣管道（Cinder Pipe，CNDP）：
在巴尔的摩城市长期生态研究（Long-Term Ecological Research，LTER）项目（即巴尔的摩生态研究计划，Baltimore Ecosystem Study, BES）中，我们采用流域方法评估综合生态系统功能。该LTER研究以格温斯福尔斯流域为核心，这是一片面积达17150公顷的集水区，其覆盖的环境梯度从巴尔的摩城市核心区出发，依次穿过1900-1950年建成的老旧城市住宅区、1950-1980年建成的郊区区域、快速郊区化区域，直至乡村/郊区边缘地带。
研究团队在整个格温斯福尔斯流域以及巴尔的摩县/市周边的补充监测站点持续监测溪流温度。共计22个站点部署了传感器（HOBO Pro v2水温数据记录仪，HOBO Pro v2 Water Temperature Data Logger - U22-001），每2分钟采集一次瞬时温度读数，数据每月进行一次下载。
本数据集对应煤渣管道站点，该站点为美国马里兰州蒂莫尼姆市锡德路（Cinder Road）附近春溪主河道的雨水排出口。该管道的汇水面积约39公顷，其中8%为林地，22%为不透水面。
流域边界信息源自美国地质调查局（USGS）StreamStats工具生成的汇水区划分成果，查询网址为http://water.usgs.gov/osw/streamstats/maryland.html。
数据集用途：对郊区集水区的溪流温度开展长期监测。
主题关键词：溪流、流域、温度、郊区、巴尔的摩生态研究计划
坐标：纬度/经度 39.4408（39°26′27″），-76.6097（-76°36′35″）
BES溪流温度数据审核流程：
原始数据通过HOBO Pro v2水温数据记录仪（HOBO Pro v2 Water Temperature Data Logger - U22-001）每2分钟进行一次记录与存储。数据被导出至Microsoft Excel文档，按站点与月份进行分类整理。随后将每月数据导入Microsoft Excel数据透视表，计算每日平均温度与每日有效数据点数量。将地理位置邻近的站点数据绘制于同一张图表中，用于识别潜在的异常数据。对缺失或异常数据进行标记，并在适用时附上野外考察的相关记录。