Collated OzSET (Australian Surface Elevation Table) data (NESP MaC 1.11)

Tidal wetlands are vulnerable to accelerated rates of sea-level rise projected by climate models. Assessing the resilience, or vulnerability, of these environments requires measurements of rates of vertical accretion, subsidence and elevation gain across a range of coastal settings. The Surface Elevation Table (SET) technique is applied globally to assess the extent of vertical adjustment of tidal wetlands to sea-level rise over decadal timescales. This enables measurement of whether wetlands are keeping pace with sea level rise (measured at tide gauges), or subsiding relative to local sea level rise and thus vulnerable to permanent inundation and loss.Australia’s network of Surface Elevation Tables is one of the most extensive in the world, consisting of over 200 benchmark monitoring stations from Westernport Bay, Victoria to Darwin Harbour, NT. This record describes the consolidated SET data collated from the Australian network (OzSET) as at 2022. This data can be used for analysing change to the elevation of wetlands wetlands at the study sites encompassed by OzSET.

潮汐湿地（Tidal wetlands）极易受到气候模型预测的加速海平面上升的影响。评估此类湿地生态系统的恢复力（或脆弱性），需在多样海岸环境中开展垂直沉积速率、沉降速率与高程抬升速率的实测工作。地表高程监测台（Surface Elevation Table，SET）技术已在全球范围内得到广泛应用，用于评估十年时间尺度下潮汐湿地对海平面上升的垂直调整幅度。借此可监测湿地能否跟上验潮站测得的海平面上升速率，或是相对于本地海平面上升发生沉降，进而面临永久性淹没与生态丧失的风险。澳大利亚地表高程监测台网络是全球规模最为庞大的同类监测网络之一，共计包含200余个基准监测站，覆盖范围从维多利亚州韦斯特波特湾延伸至北领地（Northern Territory，NT）达尔文港。本数据集记录了截至2022年从澳大利亚地表高程监测台网络（OzSET）整合汇编得到的标准化SET数据。该数据集可用于分析OzSET覆盖研究区域内湿地的高程变化特征。