Key features of DTM
| Product Type | Digital Terrain Model (DTM) |
| Product Name | 5m-grid DTM |
| File Format | ArcInfo ASCII Grid (non-proprietary ASCII format) |
| File Name | Whole_HK_DTM_5m.asc |
| Coverage | Whole Territory of Hong Kong |
| Grid Size | 5m x 5m on ground |
| File Size | About 290MB |
| Accuracy | ±5m at 90% confidence level |
| Data Source | Derived from DOP5000 Series (December 2015 Release); sourced from Aerial Photographs taken in January, February 2014 and January 2015 |
| Publication Year | 2017 |
| Revision Date | Mar 2019 |
| Geo-referencing | Geo-referenced to the local coordinate system 'Hong Kong 1980 Grid' and 'Hong Kong Principal Datum' |
| Remark | Please download the file and open it with software that can view ArcInfo ASCII Grid (non-proprietary ASCII format) |
