New Zealand Vertical land movement and sea rise projections

UPDATE from version v3: This update corrects a missing scenario (SSP3-7.0) with no VLM from the SLR projections tables. It also includes updated 0 entries for 2005 for both the VLM and noVLM projections. This dataset provides the estimated vertical land movement around the New Zealand coast and associated sea rise projections described by Naish et al., 2024: Naish, T. et al. (2024) The significance of vertical land movements at convergent plate boundaries in probabilistic sea-level projections for AR6 scenarios: the New Zealand case. Earth's Future README: NZ SeaRise Data Description This work is licensed under a Creative Commons Attribution 4.0 International (CC BY 4.0). Users can download two data sets for selected sites: (1) Site details and (2) Sea level projections. A brief description of these data is included below. 1. Site Details Provides location data and estimates of vertical land movement for each site. For the VLM file: id = site location Lon = longitude Lat = latitude Vertical Rate = average annual vertical velocity in mm/yr Vertical Rate BOP corrected (mm/yr) = average annual vertical velocity in mm/yr with a correction for a movement (see Hamling et al., 2016, Hamling et al., 2022) for details. NOTE: These are the vertical rates used for the sea level projections. 1-sigma uncertainty = Error estimate for vertical velocity in mm/yr Number of obs = Number of individual scatterers and/or GNSS used to estimate the vertical rate. QF = Quality factor for vertical velocity estimates of the land surface derived from InSAR data averaged for 2 km-spaced sites (1=good, 5=poor). This factor considers the number of observations available for each coastal location, the radial distance used to bin the observations and the distance to the nearest GNSS station. After selecting the optimal search radius, a distance weighted mean is calculated for of all the points with additional weight given to any available GNSS observations. Average distance between coastal point and observations =Average distance (in km) of all the points used to estimate the vertical rate from the coastal site indicated by the ID an lon, lat values. 2. Sea level projections tables Provides sea level projections data for each site. Table ‘NZSeaRise_proj_novlm.csv’ provides projections without estimates of local VLM and table ‘NZSeaRise_proj_vlm.csv’ provides projections that include estimates of local VLM. Example download table: Confidence = identifies low or medium confidence projection siteId = site location year = Projection year (Common Era) 0.17 = 17th percentile value 0.50 = 50th percentile (mean) value 0.83 = 83rd percentile value SSP ǀ scenario = Shared Socio-economic Pathway and relevant change in forcing at 2100 in W m2版本v3更新说明：本次更新修复了海平面上升（Sea Level Rise, SLR）投影表中缺失无垂直陆地运动（Vertical Land Movement, VLM）场景SSP3-7.0的问题，同时更新了2005年VLM与无VLM（noVLM）两类投影的0值条目。 本数据集提供新西兰沿海区域的垂直陆地运动估算结果，以及由Naish等人2024年提出的相关海平面上升投影： Naish, T. 等 (2024) 《汇聚板块边界垂直陆地运动对AR6场景概率海平面投影的意义——以新西兰为例》，《Earth's Future》 README： 新西兰海平面上升（NZ SeaRise）数据说明 本作品采用知识共享署名4.0国际许可协议（Creative Commons Attribution 4.0 International, CC BY 4.0）授权。用户可下载两类选定站点的数据集：(1) 站点详情数据集，(2) 海平面上升投影数据集。下文对这两类数据进行简要说明。 1. 站点详情 提供各站点的位置数据与垂直陆地运动估算结果。 针对VLM文件： id = 站点位置标识 Lon = 经度（longitude） Lat = 纬度（latitude） Vertical Rate = 年均垂直速率，单位：毫米/年 Vertical Rate BOP corrected (mm/yr) = 经BOP校正的年均垂直速率（单位：毫米/年），该值已针对陆地运动进行校正（详细信息参见Hamling等人2016、2022年研究）。注：该垂直速率为海平面上升投影所使用的核心参数。 1-sigma uncertainty = 垂直速率的误差估计值，单位：毫米/年 Number of obs = 用于估算垂直速率的独立散射体及/或全球导航卫星系统（Global Navigation Satellite System, GNSS）观测点总数 QF = 垂直速率估算质量因子：基于2公里间距站点的合成孔径雷达干涉测量（Interferometric Synthetic Aperture Radar, InSAR）数据计算得到的陆面垂直速率质量因子，取值范围为1（最优）至5（最差）。该因子综合考量了各沿海位置的可用观测点数、用于观测分箱的径向距离，以及与最近GNSS站点的距离。在选定最优搜索半径后，将对所有观测点计算距离加权均值，并为可用GNSS观测赋予额外权重。 Average distance between coastal point and observations = 沿海站点与观测点平均距离：用于估算垂直速率的所有观测点，与由id、经纬度标识的目标沿海站点之间的平均距离，单位：公里 2. 海平面上升投影表 提供各站点的海平面上升投影数据。其中，`NZSeaRise_proj_novlm.csv`为未包含本地VLM估算的投影结果，`NZSeaRise_proj_vlm.csv`为包含本地VLM估算的投影结果。 示例下载表字段说明： Confidence = 标识投影的置信等级（低置信度/中置信度） siteId = 站点位置标识 year = 投影年份（公元纪年） 0.17 = 17百分位数值 0.50 = 50百分位数值（即均值） 0.83 = 83百分位数值 SSP场景 = 共享社会经济路径（Shared Socio-economic Pathways, SSP）及2100年的辐射强迫变化量，单位：瓦/平方米