Cow Bay 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).

The Cow Bay flux station was established in December 2008 and managed by James Cook University. The forest is classified as complex mesophyll vine forest, there are 94 species in the core 1 Ha, and average tree height is 22 m. Elevation of the site is 90 m and mean annual precipitation is 3935 mm. The Daintree Rainforest is one of the most biodiverse forests in Australia. The instruments are mounted on a walk-up tourist tower at 35 m. 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, windspeed, wind direction, rainfall, incoming and reflected shortwave radiation and net radiation.The early years 2009 - 12 had several data gaps. Shadowing of the radiometric equipment continues to cause artifacts on the radiometers - these can be seen as reduction in downwelling radiation with solar inclination. The site is part of the FNQ Rainforest SuperSite - associated with the Daintree node, which is part of the TERN, Australia.

本数据集包含采用涡度协方差技术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。数据按照Isaac等人（2017）的方法，使用PyFluxPro（v3.4.17）进行处理。PyFluxPro可生成经过间隙填充的最终数据集，将净生态系统交换（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）。

考湾通量站（Cow Bay Flux Station）于2008年12月设立，由詹姆斯·库克大学（James Cook University）负责运维。该区域森林被归类为复杂叶肉藤本林，核心1公顷样地内分布有94个物种，树木平均高度为22米。观测场海拔90米，年平均降水量达3935毫米。丹翠雨林（Daintree Rainforest）是澳大利亚生物多样性最丰富的森林之一。观测仪器安装在高度35米的可步行观光塔上。采用开放式涡度通量技术测定热量、水汽与二氧化碳的通量。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。

2009至2012年的早期观测存在多处数据间隙。辐射观测设备的遮挡问题持续导致辐射计产生伪迹，表现为随太阳高度角变化的下行辐射强度降低。该观测场隶属于FNQ雨林超级站点（FNQ Rainforest SuperSite）的丹翠节点，属于澳大利亚陆地生态系统研究网络（Terrestrial Ecosystem Research Network, TERN）。