d4c-service-main-site/content/docs/processes/orthoimagery.md

title, weight

title	weight
Orthoimagery	3

I briefly worked on collecting orthoimagery a couple of years ago. It started from this. Current data processing pipeline is being defined, but you can preview some of the datasets from the process.

Here is a table of some of the resulting datasets.

Place	ISO	Province	Year	Provider	Dataset ID / Preview	PMTiles	TileJSON
Canada	CA		2020	NRCan	ca_nrcan_land_cover_2020_30m	https://data-01.dev.dataforcanada.org/processed/ca_nrcan_land_cover_2020_30m.pmtiles	https://tiles-01.dev.dataforcanada.org/processed/ca_nrcan_land_cover_2020_30m.json
Edmonton	CA	AB	2023	Edmonton	ca-ab_edmonton-2023A00054811061_orthoimagery_2023_075mm	https://data-01.dev.dataforcanada.org/processed/ca-ab_edmonton-2023A00054811061_orthoimagery_2023_075mm.pmtiles	https://tiles-01.dev.dataforcanada.org/processed/ca-ab_edmonton-2023A00054811061_orthoimagery_2023_075mm.json
Red Deer	CA	AB	2024	Red Deer	ca-ab_red_deer-2024A00054808011_orthoimagery_2024_075mm	https://data-01.dev.dataforcanada.org/processed/ca-ab_red_deer-2024A00054808011_orthoimagery_2024_075mm.pmtiles	https://tiles-01.dev.dataforcanada.org/processed/ca-ab_red_deer-2024A00054808011_orthoimagery_2024_075mm.json
Vancouver	CA	BC	2022	Vancouver	ca-bc_vancouver-2022A00055915022_orthoimagery_2022_075mm	https://data-01.dev.dataforcanada.org/processed/ca-bc_vancouver-2022A00055915022_orthoimagery_2022_075mm.pmtiles	https://tiles-01.dev.dataforcanada.org/processed/ca-bc_vancouver-2022A00055915022_orthoimagery_2022_075mm.json
Whitehorse	CA	YK	2019	Whitehorse	ca-yt_whitehorse-2019A000556001009_orthoimagery_2019_200mm	https://data-01.dev.dataforcanada.org/processed/ca-yt_whitehorse-2019A000556001009_orthoimagery_2019_200mm.pmtiles	https://tiles-01.dev.dataforcanada.org/processed/ca-yt_whitehorse-2019A000556001009_orthoimagery_2019_200mm.json
Winnipeg	CA	MB	2024	Winnipeg	ca-mb_winnipeg-2024A00054611040_orthoimagery_2024_075mm	https://data-01.dev.dataforcanada.org/processed/ca-mb_winnipeg-2024A00054611040_orthoimagery_2024_075mm.pmtiles	https://tiles-01.dev.dataforcanada.org/processed/ca-mb_winnipeg-2024A00054611040_orthoimagery_2024_075mm.json

The Plan

The plan is to include the original dataset, for example, the orthoimagery files from Vancouver are provided in MrSID and ECW file formats, which are proprietary and require special drivers being used. I am looking into using formats such as Cloud Optimized GeoTIFFs, but I have to make sure that there is no degradation of visual quality in the process. I hope to experiment with multispectral data in the future.