黑河综合遥感联合试验：大野口关滩森林站涡动相关通量数据集

该数据集包含了从2007年12月27日至2012年3月31日的大野口关滩森林站涡动相关通量数据。站点位于甘肃省张掖市南部的大野口关滩，观测点的经纬度为100°15′E，38°32′N，海拔高度2835m。观测场处在黑河上游大野口子流域关滩阴坡的森林内，林内主要是高约15-20m的云杉，地面覆盖有厚约10cm的苔藓，植被生长情况良好。
原始观测项目有：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）及超声信号异常标志diag_csat。 仪器架高是20.02m，超声朝向是方位角74°，Li-7500与CSAT3距离是30cm，数据采样频率是每秒10Hz。
数据分三级发布：Level0为原始仪器数据；Level1为Campbell公司自带软件实时输出的通量数据，包括显热通量（Hs）、潜热通量（LE_wpl）以及CO2通量（Fc_wpl）；Level2为后处理的30分钟通量数据，处理过程包括野点剔除、坐标旋转、频率响应修正、WPL修正以及初步质量控制等。处理后的数据以.csv格式逐月存储。命名规则为：站点名+数据级别+EC+数据日期。建议普通用户使用Level2数据。详细信息请参见下面“其他在线资源”中的“气象水文通量数据使用指南”和“涡动相关通量观测指导手册”。

This dataset contains eddy covariance flux observations collected at Dayekou Guantan Forest Station from December 27, 2007 to March 31, 2012. The station is located in Dayekou Guantan, southern Zhangye City, Gansu Province, with the observation point at coordinates 100°15′E, 38°32′N, and an altitude of 2835 m. The observation site is situated in the forest on the shady slope of Guantan within the Dayekouzi watershed of the upper Heihe River. The forest is predominantly composed of spruces with a height of 15–20 m, the ground is covered with approximately 10 cm thick moss, and the vegetation grows vigorously. The original 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/m^3), water vapor concentration h2o (g/m^3), atmospheric pressure press (KPa), and the ultrasonic signal anomaly flag diag_csat. The instrument mounting height is 20.02 m, the ultrasonic azimuth angle is 74°, the distance between the Li-7500 and CSAT3 sensors is 30 cm, and the data sampling frequency is 10 Hz. The data is released in three levels: Level 0 corresponds to raw instrument data; Level 1 refers to flux data output in real time by Campbell's proprietary built-in software, including sensible heat flux (Hs), latent heat flux (LE_wpl), and CO2 flux (Fc_wpl); Level 2 consists of post-processed 30-minute flux data, with processing steps including outlier rejection, coordinate rotation, frequency response correction, WPL correction, and preliminary quality control, among others. The processed data is stored monthly in .csv format, following the naming convention: station name + data level + EC + data date. Regular users are recommended to use Level 2 data. For detailed instructions, please refer to the "Meteorological and Hydrological Flux Data Usage Guide" and "Eddy Covariance Flux Observation Manual" listed in the "Other Online Resources" section below.

搜集汇总

背景与挑战

背景概述

该数据集包含2007年12月至2012年3月甘肃省大野口关滩森林站的涡动相关通量观测数据，涵盖风速、温度、二氧化碳浓度等多种参数，数据分为原始、实时输出和后处理三个级别，适合不同研究需求。