acquisition_date seems to not exist in metadata

While updating the GRASS GIS addon i.landsat.download to support the recent changes in landsatxplore (Thanks much!!!), I found out that metadata regarding date has changed in both collection 1 and 2 Landsat data. There’s not such thing as acquisitionDate anymore nor acquisition_date, but now there is a dictionary temporalCoverage with keys start and end date or a different key called publishDate. See https://github.com/OSGeo/grass-addons/pull/450.

Where did you find acquisition_date variable when updating the README https://github.com/yannforget/landsatxplore/commit/f44f12232360b8cea5d4057c331b30245cb4db06 ? If I perform the search and print scenes, I do not see it.

[yannforget]

Hi all and thanks for the inputs,

Yes, metadata field names and date formats are all over the place for now. I’m currently working on an update that harmonizes metadata field names and data types across the datasets, with automatic conversion to shapely Polygons for spatial objects and python datetimes for temporal values.

So in the next release (shoud be today) acquisition_date will always return a valid python datetime.

[yannforget]

Yes, the NADIR bug is fixed now

Regarding i.landsat.download, you would have to update:

1. The metadata dictionary keys: entityId -> entity_id, display_id -> display_id, acquisitionDate -> acquisition_date, cloudCover -> cloud_cover, etc.
2. The calls to ee.download as the scene_id= argument has been replaced by identifier=
3. The post-processing of the metadata values. Cloud cover is now returned as a float and acquisition date as a python datetime