葫芦沟流域涡动协方差数据集(2011年10-12月)
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1.数据概述: 涡动协方差系统,是一种微气象学的测量方法。它采用涡度相关原理,利用快速响应的传感器来测量大气下垫面的物质交换和能量交换。开路涡动协方差系统的核心由CR1000数据采集器、CSAT3三维超声风速风向传感器、LI-7500开路CO2/H2O气体分析仪(EC150)组成。涡动协方差系统为本项目新购仪器,订购时间较长,2011年10月初安装,数据较短;此数据集是祁连站2011年10月1日—2011年12月31日30min涡动协方差数据。 2.数据内容: 观测项目有:水平风速Ux(m/s),水平风速Uy(m/s),垂直风速Uz(m/s),超声温度Ts(摄氏度),二氧化碳浓度co2(mg/m^3),水汽浓度h2o(g/m^3),气压press(KPa)。数据采样频率是每秒10Hz。 3.时空范围: 地理坐标:经度:99°52′E;纬度:38°15′N;海拔:3232.3m
1. Data Overview: Eddy covariance system is a micrometeorological measurement method. It adopts the eddy covariance principle and uses fast-response sensors to measure mass and energy exchanges between the atmosphere and the underlying surface. The core of the open-path eddy covariance system consists of a CR1000 data logger, a CSAT3 3-dimensional ultrasonic anemometer and wind direction sensor, and a LI-7500 open-path CO2/H2O gas analyzer (EC150). This eddy covariance system was newly purchased for this project, with a long ordering lead time, and was installed in early October 2011, with a relatively short data collection period. This dataset contains 30-minute eddy covariance data collected at Qilian Station from October 1, 2011 to December 31, 2011. 2. Data Content: Observation items include: horizontal wind speed Ux (m/s), horizontal wind speed Uy (m/s), vertical wind speed Uz (m/s), ultrasonic temperature Ts (°C), carbon dioxide concentration co2 (mg/m³), water vapor concentration h2o (g/m³), and atmospheric pressure press (KPa). The data sampling frequency is 10 Hz. 3. Spatial-Temporal Scope: Geographical coordinates: Longitude: 99°52′E; Latitude: 38°15′N; Elevation: 3232.3 m




