Hi all,
I want to test whether the primary production by phytoplankton from a whole year (so every day a measurement) predicted by model calculations differs from the field measurements of the primary production. Therefore, it wouldn't make sense to take the mean of the two years, but I want to test if the primary production on day 28 in the model differs from the measurement on that day and than I want to test that for al the days and in this way thest whether the model significantly differs from the measurements. What test should I use for this? or do I have to take multiple staps?
Dear Janna,
If you do have daily observations and daily simulations of primary production by phytoplankton over a period of two years, you could start by plotting those time series on the same graph, and add the time series of daily differences between those series. The will provide you with a visual impression of the match (or mismatch) between the model and the observations. What you do next will depend on your objectives as well as your findings regarding how closely the model fits the measurements.
Best regards, Michel.
Dear Michel,
Thank you! This certaintly helped me further, I will see what comes out of this.
best regards, Janna
When doing as Michel suggested, there may be weather abnormalities that correspond to differences observed and predicted.
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