Height file Westerschelde 2009

Height model of the plates in the Westerschelde in the form of a grid with a resolution of 2 meters where the height value is recorded in meters.

If there are no laser points near a grid cell, the cell remains empty (the cell gets a “nodata” value).

Important to know is that the value of a 2x2 meter grid cell is calculated from multiple laser points (the number depends on the point density of the base file). As a result, the influence of the measurement noise and outliers decreases and a slight degree of flattening occurs.

For further information see Quality Document

西谢尔德海域（Westerschelde）的板块高程模型以分辨率为2米的网格形式构建，高程值单位为米。
若某网格单元附近无激光点数据，则该单元将保留为空值（即赋值为"nodata（无数据）"值）。
需特别说明的是，单个2米×2米的网格单元的高程值由多组激光点计算得到（点的数量取决于源文件的点云密度）。此举可降低测量噪声与异常值的影响，但同时会产生轻微的高程平滑效应。
如需获取更多详细信息，请参阅质量文档。