qdgc Mauritius ...

• Main Author: Larsen, Ragnvald
• Format: Dataset
• Language: unknown
• Published: Zenodo 2022
• Subjects: Mauritius; qdgc; geopackage; geocode; Africa; South Pole; South pole
• Online Access: https://dx.doi.org/10.5281/zenodo.6036658; https://zenodo.org/record/6036658

QDGC tables delivered in geopackage file QDGC represents a way of making (almost) equal area squares covering a specific area to represent specific qualities of the area covered. The squares themselves are based on the degree squares covering earth. Around the equator we have 360 longitudinal lines , and from the north to the south pole we have 180 latitudinal lines. Together this gives us 64800 segments or tiles covering earth. Within each geopackage file you will find a number of tables with these names: -tbl_qdgc_01 -tbl_qdgc_02 -tbl_qdgc_03 -tbl_qdgc_04 -tbl_qdgc_05 -etc The attributes for each table are: qdgc Unique Quarter Degree Grid Cell reference string area_reference Country level_qdgc QDGC level cellsize degrees decimal degree for the longitudal and latitudal length of the cell lon_center Longitude center of the cell lat_center Latitudal center of the cell area_km2 Calculated area for the cell geom Geometry Metadata Geodata GCS_WGS_1984 Datum: D_WGS_1984 Prime Meridian: 0 Areas are calculated with ... : All island groups has a 50 km buffer around them. Thus the coverage should be excellent for sensitivity atlases and similar. ...