Elements of the Base Map in the Establishment of Sea Surface Temperature Maps
Article 7 of Circular 13/2018/TT-BTNMT stipulates the elements of the content of base maps as follows:
Base maps are established in accordance with the provisions of Article 9 of Circular No. 10/2017/TT-BTNMT.
Groups of base map data layers:
- The mathematical base layer group includes elements: map name, map frame presentation, kilometer grid, geographical coordinate grid, coordinate system notes, projection grid, central meridian, map scale, establishment method, legend, and other related objects;
- The hydrographic layer group includes basic hydrographic objects serving as a basis for representing the position, shape, and size of thematic content: coastline, coral reefs, rivers, sea dikes;
- The transportation layer group includes objects such as railways, highways, national roads, waterway routes, and ports;
- The residential layer group includes orientation points: People's Committee headquarters, important independent objects, and economic, cultural, and social structures with orientation significance;
- The topography layer group includes contour lines and depth points fully represented as in topographic maps with the same scale. For coastal topography (if any), it must be fully contiguous;
- The administrative boundary layer group is represented up to the provincial level for the mainland and up to the commune level for island areas;
- Annotations and explanatory notes.
- Sea and island place names and administrative boundaries must be updated according to the latest documents issued by the Ministry of Natural Resources and Environment.
The above are the stipulations for the elements of the content of base maps in the creation of sea surface temperature maps.
Sincerely!
