eReefs AIMS-CSIRO Statistics of hydrodynamic model outputs

This generated data set contains basic statistical products derived from the eReefs CSIRO hydrodynamic model v2.0 (https://research.csiro.au/ereefs) outputs at both 1km and 4km resolution, generated by the AIMS eReefs Platform (https://ereefs.aims.gov.au/ereefs-aims). These statistical products are derived from the original hourly model outputs available via the National Computing Infrastructure (NCI) (https://dapds00.nci.org.au/thredds/catalogs/fx3/catalog.html), and have been re-gridded from the original curvilinear grid used by the eReefs model into a regular grid so that the data files can be easily loaded into standard GIS software. These products are made available via a THREDDS server (https://thredds.ereefs.aims.gov.au/thredds/) in NetCDF format. For more information about the eReefs hydrodynamic modelling see https://research.csiro.au/ereefs/models/models-about/models-hydrodynamics/. This data set contains two (2) products, based on the periods over which the statistics are determined: daily, and monthly. * DAILY STATISTICS Method: This product is calculated from the original hourly model outputs, using the statistical calculation in question. - MEAN is calculated by summing all values for a grid cell for the given day, and dividing by the number of summed values. - MINIMUM is the minimum value of the grid cell for the given day. - MAXIMUM is the maximum value of the grid cell for the given day. - RANGE is the different between the maximum and minimum values of the grid cell for the given day. Data Dictionary: The following variables can be found in the Daily statistics product: - temp_mean: mean temperature for each grid cell for the day. - temp_min: minimum temperature for each grid cell for the day. - temp_max: maximum temperature for each grid cell for the day. - temp_range: difference between maximum and minimum temperatures for each grid cell for the day. - eta_mean: mean surface elevation for each grid cell for the day. - eta_min: minimum surface elevation for each grid cell for the day. - eta_max: maximum surface elevation for each grid cell for the day. - eta_range: difference between maximum and minimum surface elevation for each grid cell for the day. Depths: Depths at 1km resolution: -2.35m, -5.35m, -18.0m, -49.0m Depths are 4km resolution: -1.5m, -5.55m, -17.75m, -49.0m * MONTHLY STATISTICS Method: This product is calculated from the DAILY STATISTICS as described in the Data Dictionary section. Data Dictionary: The following variables can be found in the Monthly statistics product: - temp_min_min: the minimum value of the "temp_min" variable from the Daily statistics product. This equates to the minimum temperature for each grid cell for the corresponding month. - temp_min_mean: the mean value of the "temp_min" variable from the Daily statistics product. This equates to the mean minimum temperature for each grid cell for the corresponding month. - temp_max_max: the maximum value of the "temp_max" variable from the Daily statistics product. This equates to the maximum temperature for each grid cell for the corresponding month. - temp_max_mean: the mean value of the "temp_max" variable from the Daily statistics product. This equates to the mean maximum temperature for each grid cell for the corresponding month. - temp_mean: the mean value of the "temp_mean" variable from the Daily statistics product. This equates to the mean temperature for each grid cell for the corresponding month. - temp_range_mean: the mean value of the "temp_range" variable from the Daily statistics product. This equates to the mean range of temperatures for each grid cell for the corresponding month. - eta_min_min: the minimum value of the "eta_min" variable from the Daily statistics product. This equates to the minimum surface elevation for each grid cell for the corresponding month. - eta_min_mean: the mean value of the "eta_min" variable from the Daily statistics product. This equates to the mean minimum surface elevation for each grid cell for the corresponding month. - eta_max_max: the maximum value of the "eta_max" variable from the Daily statistics product. This equates to the maximum surface elevation for each grid cell for the corresponding month. - eta_max_mean: the mean value of the "eta_max" variable from the Daily statistics product. This equates to the mean maximum surface elevation for each grid cell for the corresponding month. - eta_mean: the mean value of the "eta_mean" variable from the Daily statistics product. This equates to the mean surface elevation for each grid cell for the corresponding month. - eta_range_mean: the mean value of the "eta_range" variable from the Daily statistics product. This equates to the mean range of surface elevations for each grid cell for the corresponding month. Depths: Depths at 1km resolution: -2.35m, -5.35m, -18.0m, -49.0m Depths are 4km resolution: -1.5m, -5.55m, -17.75m, -49.0m Limitations: This dataset is based on a spatial and temporal model and as such is an estimate of the environmental conditions. It is not based on in-water measurements, and thus will have a spatially varying level of error in the modelled values. It is important to consider if the model results are fit for the intended purpose.本生成数据集包含源自澳大利亚联邦科学与工业研究组织（Commonwealth Scientific and Industrial Research Organisation, CSIRO）eReefs水动力模型v2.0（https://research.csiro.au/ereefs）1km与4km分辨率输出结果的基础统计产品，由澳大利亚海洋科学研究所（Australian Institute of Marine Science, AIMS）eReefs平台（https://ereefs.aims.gov.au/ereefs-aims）生成。 此类统计产品源自澳大利亚国家计算基础设施（National Computing Infrastructure, NCI）提供的原始逐小时模型输出结果（https://dapds00.nci.org.au/thredds/catalogs/fx3/catalog.html），并已从eReefs模型原有的曲线网格重采样为规则网格，以便数据文件可便捷加载至标准地理信息系统（Geographic Information System, GIS）软件中。本数据集通过THREDDS服务器（https://thredds.ereefs.aims.gov.au/thredds/）以网络通用数据格式（Network Common Data Form, NetCDF）提供访问。如需了解eReefs水动力建模的更多详情，请访问https://research.csiro.au/ereefs/models/models-about/models-hydrodynamics/。 本数据集包含两类统计产品，按统计周期划分为日度统计产品与月度统计产品。 一、日度统计产品 计算方法： 本产品基于原始逐小时模型输出结果，通过下述统计方法计算得到： - 均值（MEAN）：对给定日期内某网格单元的所有数值求和后除以总样本量。 - 最小值（MINIMUM）：给定日期内某网格单元的最小数值。 - 最大值（MAXIMUM）：给定日期内某网格单元的最大数值。 - 极差（RANGE）：给定日期内某网格单元的最大值与最小值之差。 数据字典： 日度统计产品包含以下变量： - temp_mean：当日各网格单元的平均水温。 - temp_min：当日各网格单元的最低水温。 - temp_max：当日各网格单元的最高水温。 - temp_range：当日各网格单元的水温极差（最高水温与最低水温之差）。 - eta_mean：当日各网格单元的平均海面高度。 - eta_min：当日各网格单元的最低海面高度。 - eta_max：当日各网格单元的最高海面高度。 - eta_range：当日各网格单元的海面高度极差（最高海面高度与最低海面高度之差）。 水深层次： 1km分辨率对应的水深层次：-2.35m、-5.35m、-18.0m、-49.0m 4km分辨率对应的水深层次：-1.5m、-5.55m、-17.75m、-49.0m 二、月度统计产品 计算方法： 本产品基于前文数据字典中描述的日度统计产品计算得到。 数据字典： 月度统计产品包含以下变量： - temp_min_min：日度统计产品中temp_min变量的最小值，对应当月各网格单元的最低水温。 - temp_min_mean：日度统计产品中temp_min变量的均值，对应当月各网格单元的平均最低水温。 - temp_max_max：日度统计产品中temp_max变量的最大值，对应当月各网格单元的最高水温。 - temp_max_mean：日度统计产品中temp_max变量的均值，对应当月各网格单元的平均最高水温。 - temp_mean：日度统计产品中temp_mean变量的均值，对应当月各网格单元的平均水温。 - temp_range_mean：日度统计产品中temp_range变量的均值，对应当月各网格单元的平均水温极差。 - eta_min_min：日度统计产品中eta_min变量的最小值，对应当月各网格单元的最低海面高度。 - eta_min_mean：日度统计产品中eta_min变量的均值，对应当月各网格单元的平均最低海面高度。 - eta_max_max：日度统计产品中eta_max变量的最大值，对应当月各网格单元的最高海面高度。 - eta_max_mean：日度统计产品中eta_max变量的均值，对应当月各网格单元的平均最高海面高度。 - eta_mean：日度统计产品中eta_mean变量的均值，对应当月各网格单元的平均海面高度。 - eta_range_mean：日度统计产品中eta_range变量的均值，对应当月各网格单元的平均海面高度极差。 水深层次： 1km分辨率对应的水深层次：-2.35m、-5.35m、-18.0m、-49.0m 4km分辨率对应的水深层次：-1.5m、-5.55m、-17.75m、-49.0m 局限性说明： 本数据集基于时空模型构建，仅为环境条件的估算结果，并非基于原位水下测量数据，因此模型输出值存在空间异质性误差。使用者需结合具体应用场景，评估模型结果是否符合预期用途。