祁连山综合观测网:青海湖流域地表过程综合观测网(混合草原超级站涡动相关仪-2018)

Qilian Mountains integrated observatory network: Dataset of Qinghai Lake integrated observatory network (eddy covariance system of Alpine meadow and grassland ecosystem Superstation, 2018)


该数据集包含了2018年9月2日至2018年12月18日的青海湖流域水文气象观测网高寒草甸草原混合草原超级站涡动相关仪观测数据。站点位于青海省天峻县苏里路旁侧,下垫面是高寒草甸和高寒草原的混合。观测点经纬度为:东经 98°35′41.62″E,北纬 37°42′11.47″N,海拔3718m。涡动相关仪的架高4.5m,采样频率是10Hz,超声朝向为西,超声风速温度仪(CSAT3A)与CO2/H2O分析仪(EC150)之间的距离约是17cm。

涡动相关仪的原始观测数据为10Hz,发布的数据是采用Eddypro软件处理的30分钟数据,其处理的主要步骤包括:野点值剔除,延迟时间校正,坐标旋转(二次坐标旋转),频率响应修正,超声虚温修正和密度(WPL)修正等。同时对各通量值进行质量评价,主要是大气平稳性(Δst)和湍流相似性特征(ITC)的检验。对Eddypro软件输出的30min通量值也进行了筛选:(1)剔除仪器出错时的数据;(2)剔除降水前后1h的数据;(3)剔除10Hz原始数据中每30min内缺失率大于10%的数据。观测数据的平均周期为30分钟,一天48个数据,缺失数据标记为-6999。12月18日-12月24日因仪器死机,导致数据缺失。

发布的观测数据包括:日期/时间Date/Time,风向Wdir(°),水平风速Wnd(m/s),侧向风速标准差Std_Uy(m/s),超声虚温Tv(℃),水汽密度H2O(g/m3),二氧化碳浓度CO2(mg/m3),摩擦速度Ustar(m/s),奥布霍夫长度L(m),感热通量Hs(W/m2),潜热通量LE(W/m2),二氧化碳通量Fc(mg/(m2s)),感热通量的质量标识QA_Hs,潜热通量的质量标识QA_LE,二氧化碳通量的质量标识QA_Fc。感热、潜热、二氧化碳通量的质量标识分为九级(质量标识1-3数据质量好,4-6数据质量较好,7-8数据质量较差(较插补数据好);9数据质量差))。数据时间的含义,如0:30代表0:00-0:30的平均;数据以*.xls格式存储。


数据文件命名方式和使用方法

年份+**观测网+站点名称+EC


本数据要求的引用方式 查看数据引用帮助 数据引用必读
数据的引用

李小雁. (2019). 祁连山综合观测网:青海湖流域地表过程综合观测网(混合草原超级站涡动相关仪-2018). 时空三极环境大数据平台, DOI: 10.11888/Meteoro.tpdc.270802. CSTR: 18406.11.Meteoro.tpdc.270802.
[Li, X. (2019). Qilian Mountains integrated observatory network: Dataset of Qinghai Lake integrated observatory network (eddy covariance system of Alpine meadow and grassland ecosystem Superstation, 2018). A Big Earth Data Platform for Three Poles, DOI: 10.11888/Meteoro.tpdc.270802. CSTR: 18406.11.Meteoro.tpdc.270802. ] (下载引用: RIS格式 | RIS英文格式 | Bibtex格式 | Bibtex英文格式 )

文章的引用

1. Li, X.Y., Yang, X.F., Ma, Y.J., Hu, G.R., Hu, X., Wu, X.C., Wang, P., Huang, Y.M., Cui, B.L., & Wei, J.Q. (2018). Qinghai Lake Basin Critical Zone Observatory on the Qinghai-Tibet Plateau. Vadose Zone Journal, 17(1).( 查看 | Bibtex格式)

2. Li, X.Y., Ma, Y.J., Huang, Y.M., Hu, X., Wu, X.C., Wang, P., Li, G.Y., Zhang, S.Y., Wu, H.W., Jiang, Z.Y., Cui, B.L., & Liu, L. (2016). Evaporation and surface energy budget over the largest high-altitude saline lake on the Qinghai-Tibet Plateau. Journal of Geophysical Research: Atmospheres, 121(18), 10470-10485.( 查看 | Bibtex格式)

使用本数据时必须引用“文章的引用”中列出的文献,并进行数据的引用


参考文献

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资助项目

泛第三极环境变化与绿色丝绸之路建设专项 (项目编号:XDA20000000) Pan-Third Pole Environment Study for a Green Silk Road-A CAS Strategic Priority A Program

数据使用声明

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  • 数据时间范围: 2018-09-11 至 2019-12-27
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Email: poles@itpcas.ac.cn

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