Google Earth Engine ——数据全解析专辑（AHN Netherlands 0.5m DEM, Interpolated）荷兰0.5m 点云平方逆距离加权方法DEM！

The AHN DEM is a 0.5m DEM covering the Netherlands. It was generated from LIDAR data taken in the spring between 2007 and 2012.

This version contains both ground level samples and items above ground level (such as buildings, bridges, trees etc). The point cloud was converted to a 0.5m grid using an squared inverse distance weighting method

AHN DEM 是覆盖荷兰的 0.5m DEM。它是根据 2007 年至 2012 年春季拍摄的 LIDAR 数据生成的。

此版本包含地面样本和地面以上的项目（例如建筑物、桥梁、树木等）。使用平方逆距离加权方法将点云转换为 0.5m 网格。

Dataset Availability

2012-01-01T00:00:00 - 2012-01-01T00:00:00

Dataset Provider

AHN

Collection Snippet

ee.Image("AHN/AHN2_05M_RUW")

Resolution

0.5 meters

Bands Table

代码：

var dataset = ee.Image('AHN/AHN2_05M_RUW');
var elevation = dataset.select('elevation');
var elevationVis = {
  min: -5.0,
  max: 30.0,
};
Map.setCenter(5.76583, 51.855276, 16);
Map.addLayer(elevation, elevationVis, 'Elevation');

点云数据相比于之前的数据更加真实