Calperum Chowilla Flux Data Release 2025_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 (v3.4.18) 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 Calperum Chowilla site was established in July 2010 and is managed by the University of Adelaide, coordinated by Prof Wayne Meyer and Prof David Chittleborough of the Landscape Futures Program as part of the Environment Institute. This is a former sheep grazing property that has been destocked and is being managed as a conservation area in this type of ecosystem. The landscape is flat with a series of low east–west sand dunes. The dunes are remnants of a previous dry era and are mostly now stabilized by mallee (multi-stemmed Eucalypt trees) and various shrubs. It is a semi-arid environment fringing the River Murray floodplains of the Riverland.

本次发布的数据集包含采用涡度协方差（eddy covariance）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。数据采用PyFluxPro（v3.4.18）进行处理，处理流程遵循Isaac等人（2017年）的研究方法。PyFluxPro可生成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）。
卡尔佩鲁姆乔伊拉（Calperum Chowilla）观测站始建于2010年7月，由阿德莱德大学（University of Adelaide）负责运维，景观未来计划（Landscape Futures Program）的韦恩·迈耶教授与戴维·奇特尔伯勒教授牵头协调，隶属于环境研究所（Environment Institute）。该站点前身为绵羊放牧牧场，现已停止放牧，并作为该生态系统类型下的保护区域进行管理。区域地势平坦，分布有一系列东西走向的低矮沙丘。这些沙丘是过往干旱时期的遗迹，如今大部分已被灌丛桉（mallee，多茎桉属树木）与各类灌木固定。该区域属于半干旱环境，毗邻里弗兰（Riverland）地区的墨累河（River Murray）泛滥平原。