Conflict Resolution, GIS, Tacos
Published
Edited
Oct 10, 2021
2 stars
Cloud Optimized GeoSpatial Statistics
quickly calculate statistics for areas within GB+ GeoTIFFs
- City of Boston Boundaries from https://data.boston.gov/dataset/city-of-boston-boundary
- Population Data from https://ghsl.jrc.ec.europa.eu/ghs_pop2019.php
- Link to Visualization of the Population Data: https://geotiff.github.io/georaster-layer-for-leaflet-example/examples/population.html
geojson = fetch("https://geoblaze.s3.amazonaws.com/City_of_Boston_Boundary.geojson").then(response => response.json())
geoblaze = require("geoblaze")
// calculate the sum of the population within the GeoJSON
// only fetches the pixels (5.3MB) from the raster (1.5GB) within the bounding box of the GeoJSON
// geoblaze then crops out the pixels within the boundary from the fetched box
geoblaze.sum("https://georaster-layer-for-leaflet.s3.amazonaws.com/GHS_POP_E2015_GLOBE_R2019A_4326_9ss_V1_0.tif", geojson)
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