qdgc Mauritius
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...
Main Author: | |
---|---|
Format: | Other/Unknown Material |
Language: | unknown |
Published: |
Zenodo
2022
|
Subjects: | |
Online Access: | https://doi.org/10.5281/zenodo.6135658 |
id |
ftzenodo:oai:zenodo.org:6135658 |
---|---|
record_format |
openpolar |
spelling |
ftzenodo:oai:zenodo.org:6135658 2024-09-15T18:36:53+00:00 qdgc Mauritius Ragnvald Larsen 2022-02-10 https://doi.org/10.5281/zenodo.6135658 unknown Zenodo https://zenodo.org/communities/qdgc https://doi.org/10.5281/zenodo.6036657 https://doi.org/10.5281/zenodo.6135658 oai:zenodo.org:6135658 info:eu-repo/semantics/openAccess Creative Commons Attribution 4.0 International https://creativecommons.org/licenses/by/4.0/legalcode Mauritius qdgc geopackage geocode Africa info:eu-repo/semantics/other 2022 ftzenodo https://doi.org/10.5281/zenodo.613565810.5281/zenodo.6036657 2024-07-26T06:38:42Z 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 different versions of Albers Equal Area Conic using the PostGIS function st_area. For the African continent I have used Africa Albers Equal Area Conic which will look like this: - st_area(st_transform(geom, 102022))/1000000) Licensing Creative Commons Attribution 4.0 International Conditions Delivered to the user as-is. No guarantees. If you find errors, please tell me and I will try to fix it. Suggestions for improvements can be addressed to the github repository: https://github.com/ragnvald/qdgc Thank you The work has over the years been supported and received advice and moral support from many organisations and stakeholders. Here are some of them: - Tanzania Wildlife Research Institute - Dept of Biology, NTNU, Norway - Norwegian Environment Agency - Eivin Røskaft, Steven Prager, Howard Frederick, Julian Blanc, Honori Maliti, Paul Ramsey References --- * http://en.wikipedia.org/wiki/QDGC * http://www.mindland.com/wp/projects/quarter-degree-grid-cells/about-qdgc/ * ... Other/Unknown Material South pole Zenodo |
institution |
Open Polar |
collection |
Zenodo |
op_collection_id |
ftzenodo |
language |
unknown |
topic |
Mauritius qdgc geopackage geocode Africa |
spellingShingle |
Mauritius qdgc geopackage geocode Africa Ragnvald Larsen qdgc Mauritius |
topic_facet |
Mauritius qdgc geopackage geocode Africa |
description |
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 different versions of Albers Equal Area Conic using the PostGIS function st_area. For the African continent I have used Africa Albers Equal Area Conic which will look like this: - st_area(st_transform(geom, 102022))/1000000) Licensing Creative Commons Attribution 4.0 International Conditions Delivered to the user as-is. No guarantees. If you find errors, please tell me and I will try to fix it. Suggestions for improvements can be addressed to the github repository: https://github.com/ragnvald/qdgc Thank you The work has over the years been supported and received advice and moral support from many organisations and stakeholders. Here are some of them: - Tanzania Wildlife Research Institute - Dept of Biology, NTNU, Norway - Norwegian Environment Agency - Eivin Røskaft, Steven Prager, Howard Frederick, Julian Blanc, Honori Maliti, Paul Ramsey References --- * http://en.wikipedia.org/wiki/QDGC * http://www.mindland.com/wp/projects/quarter-degree-grid-cells/about-qdgc/ * ... |
format |
Other/Unknown Material |
author |
Ragnvald Larsen |
author_facet |
Ragnvald Larsen |
author_sort |
Ragnvald Larsen |
title |
qdgc Mauritius |
title_short |
qdgc Mauritius |
title_full |
qdgc Mauritius |
title_fullStr |
qdgc Mauritius |
title_full_unstemmed |
qdgc Mauritius |
title_sort |
qdgc mauritius |
publisher |
Zenodo |
publishDate |
2022 |
url |
https://doi.org/10.5281/zenodo.6135658 |
genre |
South pole |
genre_facet |
South pole |
op_relation |
https://zenodo.org/communities/qdgc https://doi.org/10.5281/zenodo.6036657 https://doi.org/10.5281/zenodo.6135658 oai:zenodo.org:6135658 |
op_rights |
info:eu-repo/semantics/openAccess Creative Commons Attribution 4.0 International https://creativecommons.org/licenses/by/4.0/legalcode |
op_doi |
https://doi.org/10.5281/zenodo.613565810.5281/zenodo.6036657 |
_version_ |
1810480620068929536 |