Robson Creek Flux Data Collection

This dataset consists of measurements of the exchange of energy and mass between the surface and the atmospheric boundary-layer in tropical forest using eddy covariance techniques. The Robson Creek site is part of the FNQ Rainforest Site along with affiliated monitoring sites at Cape Tribulation (Daintree Rainforest Observatory) and Cow Bay (Daintree Discovery Centre). The flux station is located at the foothills of the Lamb Range, part of the Wet Tropics World Heritage Area, and north-west of a 25 hectare census plot established by CSIRO in 2012. The forest is classified as Regional Ecosystem (RE) 7.3.36a, complex mesophyll vine forest (Queensland Government 2006). There are 211 species in the adjacent 25ha plot, and average tree height is 28m, ranging from 23 to 44 m. Elevation of the site is 711m and mean annual precipitation is 2000mm. The upland rainforests of the Atherton Tablelands are some of the most biodiverse and carbon dense forests in Australia. The landform of the 25ha plot which is in the dominant wind direction from the station is moderately inclined with a low relief, a 30 m high ridge running north/south through the middle of the plot and a 40 m high ridge running north/south on the eastern edge of the plot. The instruments are mounted on a free standing station at 40m. 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. This data is also available at http://data.ozflux.org.au . Note: Level 3 data for 2015 - 2018 were updated in 2018 correcting a rainfall issue in 2015 and a wind direction issue 2016 - 2018. A data gap from 2019-02-14 - 2019-02-21 was due to a major power supply failure.

本数据集包含采用涡度协方差（eddy covariance）技术测得的热带森林地表与大气边界层之间的能量与物质交换观测数据。Robson Creek站点是FNQ雨林站点的组成部分，与位于苦难角（戴恩树雨林观测站）和考湾（戴恩树探索中心）的附属监测站点共同构成该监测网络。通量观测站坐落于拉姆山脉山麓，隶属于湿热带世界遗产区域，地处澳大利亚联邦科学与工业研究组织（CSIRO）2012年设立的25公顷普查样地西北侧。该森林被归类为区域生态系统（Regional Ecosystem，RE）7.3.36a型复合叶层藤本林（昆士兰州政府，2006年）。毗邻的25公顷样地内共记录有211个物种，树木平均高度为28米，高度分布区间为23至44米。该观测站点海拔为711米，年平均降水量达2000毫米。阿瑟顿台地的高地雨林是澳大利亚生物多样性与碳密度最高的森林生态系统之一。该25公顷样地处于观测站的主导风向范围内，地形以缓倾斜低起伏地貌为主，样地中部有一条南北走向的30米高山脊，样地东侧边缘则分布有一条南北走向的40米高山脊。观测仪器架设於高度为40米的独立观测塔上。研究采用开放式涡度通量技术，对热通量、水汽通量与二氧化碳通量进行观测。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。该数据集亦可通过http://data.ozflux.org.au 公开获取。备注：2015至2018年的Level 3级数据已于2018年完成更新，修正了2015年的降雨量记录误差以及2016至2018年的风向记录误差。2019年2月14日至2019年2月21日期间的数据缺失，系因一次大规模供电故障所致。