Dataset from Burchard et al. (2026): "Estuarine mixing"
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Model data from the numerical setup of the tidal Elbe presented in Reese et al. (2026): "The role of the shoal - salt mixing mechanisms in a partially mixed tidal estuary with channel-shoal geometry" [1], used to create the figures shown in Burchard et al. (2026): "Estuarine Mixing" [2] Each file contains data for a sequence of ten days, with the starting day given through the file naming convention: YYYYMMDD_description.nc4 The numerical model uses adaptive vertical coordinates, with the number of each vertical grid layer given in the output coordinate "level". level=1 corresponds to the bottommost layer, level=40 is the surface layer. Certain variables are given in salinity class bins of dimension salt_s instead of vertical coordinates as listed below. Explanation of each data set: 202404*_Mean_review__allvars.nc4: Variables in Euclidean space (time, z,y,x) salt_mean: salinity s(x,y,z,t) (g/kg) velocities in global x- and y-directions, , velx3d_mean, vely3d_mean, respectively (m/s) grid metrics as given in the respective netcdf header description Each file contains data for a sequence of ten days, with the starting day given through the file naming convention: YYYYMMDD_description.nc4 Total data coverage: 1 month (April 2024) Temporal resolution: 12h 25min (~M2 tidal period); averaged over each period Fig. 8, C1 202404*_DiaMixing_Mean_review__allvars.nc4: Variables in salinity (S-)space (time, S,y,x) salt_s: salinity class S (g/kg), local physical (hpmS_s_mean) and numerical (hnmS_s_mean) mixing per salinity class salt_s Further transports (volume, salt, salinity squared) and grid metrics as given in the respective netcdf header description Each file contains data for a sequence of ten days, with the starting day given through the file naming convention: YYYYMMDD_description.nc4 Total data coverage: 1 month (April 2024) Temporal resolution: 12h 25min (~M2 tidal period); averaged over each period Fig. 2, 4, 8 20240416_Neap__reduced_cutout.nc4: High-resolution output at peak neap tide in Euclidean space (time, z,y,x) for a select section of the inner estuary Estuarine parameters (horizontal velocities, salinity, diffusivity, local mixing) and grid metrics as given in the netcdf header description Local bathymetry, where values <0 correspond to elevations above mean sea level, and values =-10m correspond to unfloodable land Contains data for a sequence of selected tidal cycles around peak neap tide Total data coverage: 2 days (2024/04/17 00:00:00 to 2024/04/19 00:00:00) Temporal resolution: 10min snapshots Fig. 12 Further documentation, including all provided variables, their respective meaning and physical dimensions, can be found in the header of each netcdf file. Python scripts (py_scripts.zip): Fig_2_TEF.py: Fig. 2 Fig4_bulk_Knudsen.py: Fig. 4 Fig8_universal_law.py: Fig. 8 Fig12_vertical_profiles_only-neap_formatted.py: Fig. 12 FigC1_salinity_distribution.py: Fig. C1 [1] L. Reese, M. Becker, P. Holtermann, X. Li, H. Burchard, 2026: The role of the shoal - salt mixing mechanisms in a partially mixed tidal estuary with channel-shoal geometry. Cont. Shelf Res., https://doi.org/10.1016/j.csr.2026.105669. [2] Burchard, H., Klingbeil, K., Li, X., Reese, L., and Geyer, R. (2026): Estuarine mixing. Ocean Science, accepted for publication.
本数据集基于Reese等人（2026）发表的《滩涂-盐度混合机制在具有滩涂-水道几何形态的部分混合型潮汐河口的作用》[1]中易北河潮汐数值试验设置生成，用于绘制Burchard等人（2026）发表的《河口混合》[2]中的相关图表。 所有文件均包含连续10天的数值试验数据，文件命名规则为`YYYYMMDD_description.nc4`，其中`YYYYMMDD`代表数据起始日期。 本数值模型采用自适应垂向坐标，垂向网格层数由输出坐标`level`标识：`level=1`对应最底层，`level=40`对应表层。部分变量以盐度类分箱形式存储（维度为`salt_s`），而非下文所列的垂向坐标。 各数据集说明如下： ### `202404*_Mean_review__allvars.nc4` 数据位于欧几里得空间维度（时间、z、y、x）： - `salt_mean`：盐度`s(x,y,z,t)`，单位为克每千克（g/kg） - 全局x、y方向流速分别为`velx3d_mean`与`vely3d_mean`，单位为米每秒（m/s） - 网格度量参数详见对应NetCDF文件头描述。 所有文件均包含连续10天的数值试验数据，文件命名规则为`YYYYMMDD_description.nc4`，其中`YYYYMMDD`代表数据起始日期。 总数据覆盖时长：1个月（2024年4月） 时间分辨率：12小时25分钟（近似M2潮汐周期），每个周期内取平均。 对应图表：图8、图C1 ### `202404*_DiaMixing_Mean_review__allvars.nc4` 数据位于盐度（S）空间维度（时间、S、y、x）： - `salt_s`：盐度类S，单位为g/kg - 各盐度类`salt_s`对应的局地物理混合项`hpmS_s_mean`与数值混合项`hnmS_s_mean` - 其余输运量（体积、盐度、盐度平方）及网格度量参数详见对应NetCDF文件头描述。 所有文件均包含连续10天的数值试验数据，文件命名规则为`YYYYMMDD_description.nc4`，其中`YYYYMMDD`代表数据起始日期。 总数据覆盖时长：1个月（2024年4月） 时间分辨率：12小时25分钟（近似M2潮汐周期），每个周期内取平均。 对应图表：图2、图4、图8 ### `20240416_Neap__reduced_cutout.nc4` 针对河口内选定区域的高分辨率输出数据，位于欧几里得空间维度（时间、z、y、x），对应小潮高潮时段： - 河口参数（水平流速、盐度、扩散系数、局地混合项）及网格度量参数详见该NetCDF文件头描述。 - 局地水深数据：数值小于0代表高于平均海平面的地形，数值为-10m代表不可淹没的陆地。 本文件包含小潮高潮前后选定潮汐周期的连续数据，总数据覆盖时长为2天（2024年4月17日00:00:00至2024年4月19日00:00:00），时间分辨率为10分钟快照数据。 对应图表：图12 其余文档（含所有提供变量的定义、物理量纲）详见各NetCDF文件的文件头。 #### Python脚本（`py_scripts.zip`）： - `Fig_2_TEF.py`：用于生成图2 - `Fig4_bulk_Knudsen.py`：用于生成图4 - `Fig8_universal_law.py`：用于生成图8 - `Fig12_vertical_profiles_only-neap_formatted.py`：用于生成图12 - `FigC1_salinity_distribution.py`：用于生成图C1 --- [1] Reese L, Becker M, Holtermann P, Li X, Burchard H. 2026: The role of the shoal-salt mixing mechanisms in a partially mixed tidal estuary with channel-shoal geometry[J]. Continental Shelf Research, https://doi.org/10.1016/j.csr.2026.105669. [2] Burchard H, Klingbeil K, Li X, Reese L, Geyer R. 2026: Estuarine mixing[J]. Ocean Science, 已录用.
