Tumbarumba Flux Data Release 2021_v1

This data release consists of flux tower measurements of the exchange of energy and mass between the surface and the atmospheric boundary-layer in semi-arid eucalypt woodland using eddy covariance techniques. It been processed using PyFluxPro (v3.3.0) as described in Isaac et al. (2017), https://doi.org/10.5194/bg-14-2903-2017. PyFluxPro takes data recorded at the flux tower and process this data to a final, gap-filled product with Net Ecosystem Exchange (NEE) partitioned into Gross Primary Productivity (GPP) and Ecosystem Respiration (ER). For more information about the processing levels, see https://github.com/OzFlux/PyFluxPro/wiki.
The Tumbarumba flux station is located in the Bago State Forest in south eastern New South Wales. It was established in 2000 and is managed by CSIRO Marine and Atmospheric Research. The forest is classified as wet sclerophyll, the dominant species is Eucalyptus delegatensis, and average tree height is 40m. Elevation of the site is 1200m and mean annual precipitation is 1000mm. The Bago and Maragle State Forests are adjacent to the south west slopes of southern New South Wales and the 48,400 ha of native forest have been managed for wood production for over 100 years. The instrument mast is 70m tall. Fluxes of heat, water vapour and carbon dioxide are measured using the open-path eddy flux technique. Supplementary measurements above the canopy include temperature, humidity, wind speed, wind direction, rainfall, incoming and reflected shortwave radiation and net radiation. Profiles of temperature, humidity and CO2 are measured at seven levels within the canopy. Soil moisture content is measured using Time Domain reflectometry, while soil heat fluxes and temperature are also measured. Hyper-spectral radiometric measurements are being used to determine canopy leaf-level properties. The Tumbarumba flux station is supported by TERN and the DCCEE through the ACCSP. For additional site information, see https://www.tern.org.au/tern-observatory/tern-ecosystem-processes/tumbarumba-wet-eucalypt-supersite/.

本数据集发布内容包含采用涡度协方差（eddy covariance）技术，对半干旱桉树林地内地表与大气边界层之间的能量与物质交换开展的通量塔观测数据。该数据集已按照Isaac等人（2017）的研究方法，使用PyFluxPro（v3.3.0）完成处理，相关文献DOI为https://doi.org/10.5194/bg-14-2903-2017。PyFluxPro可将通量塔记录的原始数据加工为最终的间隙填充数据集，并将生态系统净交换（Net Ecosystem Exchange, NEE）划分为总初级生产力（Gross Primary Productivity, GPP）与生态系统呼吸（Ecosystem Respiration, ER）。如需了解更多关于数据处理层级的详细信息，请访问https://github.com/OzFlux/PyFluxPro/wiki。

图姆巴伦巴（Tumbarumba）通量站坐落于新南威尔士州东南部的巴戈州立森林（Bago State Forest）内，该站于2000年建成，由澳大利亚联邦科学与工业研究组织（CSIRO）海洋与大气研究部负责运维。该森林被归类为湿润硬叶林，优势树种为德氏桉（Eucalyptus delegatensis），平均树高40米。站点海拔为1200米，年平均降水量达1000毫米。巴戈州立森林与马拉格尔州立森林毗邻，地处新南威尔士州南部西南坡区域，这片总面积48400公顷的原生森林已有百余年的木材生产经营历史。观测塔桅杆高度为70米，研究采用开路式涡度通量技术，对热量、水汽与二氧化碳的通量进行观测。冠层上方的补充观测项目包括气温、相对湿度、风速、风向、降雨量、入射与反射短波辐射以及净辐射。研究人员在冠层内的7个高度层级上，分别测定温度、湿度与二氧化碳的垂直分布廓线。土壤含水率采用时域反射法（Time Domain Reflectometry, TDR）进行测量，同时同步观测土壤热通量与土壤温度。本研究还采用高光谱辐射测量技术，以获取冠层叶片的生理生态属性参数。图姆巴伦巴通量站的运维得到了陆地生态系统研究网络（TERN）与气候变化与能源效率部（DCCEE）通过澳大利亚气候变化科学计划（ACCSP）提供的资助。如需获取该站点的更多详细信息，请访问https://www.tern.org.au/tern-observatory/tern-ecosystem-processes/tumbarumba-wet-eucalypt-supersite/