I plan to do a close reading of past debates on social media about a certain public case, as a part of an ethnographic study. This will include note-taking and description about the nature of the content, the general atmosphere of the debate and any other notes (timing, activity, popularity..etc.).
I feel confused about the appropriate academic name for such method. could it be considered observation even if it depends on saved data from the past that is still available on social media- sort of archival observation.
Or is it enough just to call it ethnographic reading?