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2023/12/20/non-blog-si-depth #14

Open utterances-bot opened 10 months ago

utterances-bot commented 10 months ago

Off-Piste Data Update - Saanich Inlet and Saanich Inlet | Dakota’s Research Blog

An ever-expanding forum for research updates and progress tracking.

https://dakotamm.github.io/2023/12/20/non-blog-si-depth.html

parkermac commented 10 months ago

Nice plots. The depth thing is going to be really important. Mean depth is a good start, but we need something more granular like "mean depth for samples in the top 10 m" and "mean depth for samples below 100 m" and etc.

ahornerdevine commented 10 months ago

Thanks for the plots! These are really telling. It will be interesting to see how results change when you account for depth. We'll have to think carefully about how to do that. It seems possible that the ECY 2010-2020 trend may be explained by increased sampling depth over that period. And, to Parker's earlier point about avoiding too much correlative trend analysis with climate indices, much of the up/down variation from 2000 - 2020 that we were looking at in HC DO may be a function of sampling depth. Peak DO in 2010 looks like it could really be minimum in sampling depth. Maybe they had new staff who didn't like lowering the CTD so far!

In these plots, are you reporting avg sampling depth for all samples, or just the <35m samples?

dakotamm commented 10 months ago

Thanks for the comments! Really good point to see if the increase in sampling depth may correlate to some trends we see 2010-2020. These average all samples, not just specific depth-bins!