Tumbarumba Flux Data Release 2024_v1

This release consists of flux tower measurements of the exchange of energy and mass between the surface and the atmospheric boundary-layer using eddy covariance techniques. Data were processed using PyFluxPro (v3.4.17) as described by Isaac et al. (2017). PyFluxPro produces a final, gap-filled product with Net Ecosystem Exchange (NEE) partitioned into Gross Primary Productivity (GPP) and Ecosystem Respiration (ER).

Tumbarumba flux station is located in 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 40 m. Elevation of the site is 1200 m and mean annual precipitation is 1000 mm. 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 70 m 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. Soil heat fluxes and temperature are also measured. Hyper-spectral radiometric measurements are being used to determine canopy leaf-level properties.

本数据集包含采用涡度协方差技术（eddy covariance techniques）获取的地表与大气边界层间能量与物质交换通量塔观测数据。数据使用PyFluxPro（v3.4.17）进行处理，处理流程参照Isaac等人（2017）的研究方法。PyFluxPro可生成经过间隙填充的最终数据集，并将生态系统净交换量（Net Ecosystem Exchange, NEE）划分为总初级生产力（Gross Primary Productivity, GPP）与生态系统呼吸量（Ecosystem Respiration, ER）。
坦巴拉姆巴通量站位于新南威尔士州东南部的巴戈州立森林（Bago State Forest），始建于2000年，由澳大利亚联邦科学与工业研究组织海洋与大气研究部（CSIRO Marine and Atmospheric Research）管理。该森林被归类为湿润硬叶林，优势树种为Eucalyptus delegatensis，平均树高40米。站点海拔1200米，年平均降水量1000毫米。巴戈与马雷格尔州立森林毗邻新南威尔士州南部西南坡，这片总面积达48400公顷的原生森林已有百余年的木材生产经营历史。仪器塔高70米，采用开放式涡度通量技术测量热、水汽与二氧化碳通量。冠层上方的补充观测项目包括气温、湿度、风速、风向、降雨量、入射与反射短波辐射以及净辐射。研究人员在冠层内七个高度层测量气温、湿度与二氧化碳的垂直廓线。土壤含水率采用时域反射仪（time domain reflectometry）测量，同时同步观测土壤热通量与土壤温度。团队还利用高光谱辐射测量技术获取冠层叶片级的生理生态属性。