Open RocketD0g opened 7 years ago
This is something we would like to do in the future - have a QA/QC'ed layer in addition to the real-time gov layer. Current constraints: (1) Time it would take to re-format existing data points in system, and (2) Financial: this could, in theory, greatly expand our database with another layer of data (from sources/locations) already in our system. There were would be significant costs associated with this if we were to duplicate existing databases that have this information. One question might be: in the mean time, rather than to duplicate these databases (again due to time + financial constraints), how do we systematically point people do these databases, in addition to tagging the source?
On the specific differences @masalmon noticed: it's odd to me that '-999' got taken out and replaced with other numbers. '-999' is the symbol for 'my instrument isn't reporting data.' Measurements may drift systematically, meaning QA/QC'ed numbers may be adjusted, but I don't see how '-999' numbers are adjusted. Perhaps the instrument itself was truly measuring numbers but the measurements weren't making it out or something?
cc: @jflasher @masalmon
When I thought of this I realized this would mean having a more crowd-sourced aspect to the data. ;-)
I also assumed that the instrument was working but not the display, maybe we could ask directly? I think some of us have some contacts :grin:
Below, @masalmon mentioned differences she noticed between real-time captured US Emb data from Delhi and data reported on the Emb site later. OpenAQ currently only captures real-time data for government sources, and does not allow the insertion of a QA/QC layer.
From @masalmon: