In the article "Global 30-meter 100% Land and Water Cover Elevation", we shared with you 30-meter DEM data with 100% global coverage, including seabed elevation.
Although the data has no dead angle coverage in the world, the resolution is only 30 meters.
Here, I would like to share with you another elevation data that is better than 10 meters, but it only covers the whole country at present.
Better than 10 meters elevation
Better than 10 m elevation data, with a total of 789 TIF files.
789 TIF files
Although the number of files in this elevation data is small, the individual file size is large, with a total size of 0.98 TB.
0.98T size
Each TIF file can be opened and viewed in professional GIS software such as GlobalMapper, QGIS or ArcGIS.
GlobalMapper中查看
The resolution of the data is better than 10 meters, and the 3D scene based on it is better than 12.5 meters and 30 meters.
Better than 10 m elevation coverage
Elevation data better than 10 meters is currently only covering the whole country.
Data coverage
The data is based on the WGS84 coordinate system for water scripture note 9 (standard TMS level 10) tiles for blocking, and the number of each tile is used as the number of the file.
Data is connected to charts
How to download better than 10 meters elevation
Elevations greater than 10 meters can be downloaded from the Water Meridian Micromap (referred to as the "Micromap"), and you need to make sure that menu 1 is checked in the Elevation Data menu before downloading.
Choose better than 10 meters elevation
Once you have made sure that you have selected the correct data source, you can select the target range by boxing and double-clicking to create a new download task.
Box select the range
When you create a new task, you can select the highest level to download the data, level 17.
Create a task
After the data is downloaded, it can be opened and viewed in GIS software such as Global Mapper.
Check out the download results
The data can be downloaded in the micromap because it has been sliced and packaged as a DAT file and can be called up from the micromap.
The data is co-sliced and packaged into 789 DAT files, which are 1.08 TB in size.
At the same time, it can also be privatized and deployed based on the Water Scripture Note Map Service.
Write at the end
This article shares the number of DEM data files, storage size, and coverage at an elevation of better than 10 meters.
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参考资料：SJZ/SJ 27-2024