North Temperate Lakes LTER: High Frequency Meteorological and Dissolved Oxygen Data - Trout Bog Buoy 2003 - 2014

The instrumented buoy on Trout Bog is equipped with a dissolved oxygen sensor, a thermistor chain, and meteorological sensors that provide fundamental information on lake thermal structure, weather conditions, and lake metabolism. Data are usually collected every 10 minutes with occasional periods of 2 minute data for short periods to answer specific questions. The D-Opto dissolved oxygen sensor is 0.5m from the lake surface, thermistors are placed every 0.5-1m throughout the water column, and meteorological sensors measure wind speed, wind direction, relative humidity, and air temperature. After correcting for flux to or from the atmosphere and vertical mixing within the water column, high frequency measurements of dissolved gases such as carbon dioxide and oxygen can be used to estimate gross primary productivity, respiration, and net ecosystem productivity, the basic components of whole lake metabolism. Sampling Frequency: varies for instantaneous sample. averaged to hourly and daily values from one minute samples Number of sites: 1

特劳特沼泽（Trout Bog）上的搭载式监测浮标配备了溶解氧传感器（dissolved oxygen sensor）、热敏电阻链（thermistor chain）与气象传感器（meteorological sensors），可获取湖泊热结构、天气状况及湖泊代谢的基础信息。常规数据采集间隔为10分钟，偶尔会在短时段内采用2分钟的采集频率以响应特定研究问题。D-Opto型溶解氧传感器布设于距湖面0.5米处，热敏电阻在整个水柱中以0.5至1米的间距布设，气象传感器则监测风速、风向、相对湿度与空气温度。在校正了大气与水体间的气体通量以及水柱内的垂直混合效应后，高频监测的溶解气体（如二氧化碳与氧气）数据可用于估算总初级生产力（gross primary productivity）、呼吸作用（respiration）与生态系统净生产力（net ecosystem productivity）——这三者是全湖代谢的基本组成要素。采样频率：瞬时采样的频率存在差异；可基于1分钟采样数据平均得到小时级与日级数据集。监测点位数量：1个