Questions tagged [stac]
Related to the SpatioTemporal Asset Catalog (STAC-spec)
9
questions
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Calculate satellite raster products (NDVI, NDSI etc.) for dataset of polygons using Dask and Stac Catalog
I want to implement distributed raster calculations for dataset of polygons using Dask and Stac Catalog, for example: calculate NDVI for pixels in polygon, statistics(std, mean) etc. I know that there ...
- 1
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1
answer
73
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"GDALWarpOptions.Validate(): hSrcDS is not set" when reading a VRT pointing to a STACTA
Using rasterio.open() I was trying to read a VRT. This VRT pointed to another VRT and this in turn pointed to a STACTA file.
This error message appeared:
rasterio.errors.RasterioIOError: Read or write ...
- 3,363
0
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1
answer
57
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Pixel value differences in image downloaded through STAC api & Sentinel hub api
I downloaded same tile from AWS & Sentinel API. I compared pixel values for both and they differ by 1000.
For example, consider red band.
The value at 0,0 (row,column) for the image from Sentinel ...
- 35
1
vote
1
answer
218
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Create STAC catalog file for my s3 bucket
I have s3 private bucket which contains .tif files.
Now, I need to create STAC file like the following:
https://earth-search.aws.element84.com/v0
https://earthengine-stac.storage.googleapis.com/...
- 77
1
vote
2
answers
123
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How can I cover an AOI with a subset of image extents?
I’ve been experimenting with a problem that I have not found a friendly and simple solution for yet. Curious to know if any of you have already solved this problem.
Given a AOI and a set of image ...
2
votes
1
answer
154
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Data indexing from DEAfrica STAC is not working
I am trying to index some Sentinel-1 data from the DEAfric STAC catalogue and have added the product using the following command
docker-compose exec jupyter datacube product add https://raw....
- 105
2
votes
1
answer
202
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Intake-STAC: KeyError: 'open_stac_item_collection'
I downloaded the AWS Earth search notebook from the intake-stac examples and whithout changing anything. Just run the cells...
But I've got everytime the error: KeyError: 'open_stac_item_collection'
...
- 103
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321
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Is there any STAC catalog available for Sentinel-2 data on Google Cloud?
We are looking for a fast and optimum way of discovering and downloading Sentinel-2 data from Google Cloud using Python.
We have tried using index data in BigQuery and it works. However, we have also ...
- 11
0
votes
1
answer
270
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What is the difference in purpose between STAC and OGC services?
I am confused about the purpose of the Spatiotemporal Asset Catalog. How does it differ from OGC services which specify accessing data through various services? Is it another service?
- 13