I have experience in PostgreSQL but I am fresh new in PostGIS and I can see how quickly would I like it. I have extensively worked on time series and now I am discovering the spatial side of my data. I have installed PostGIS on my server and then I am wondering how to anwser tons of questions. Thus I am in the prospective part of my work and I have everything to learn.
Anyway, I would like to have some clues from GIS expert in order to take the good start. Basically, I am monitoring concentrations at constant places, but we also have some campaigns where we monitor concentrations when we are in motion. That is, we have, at least, a five dimension problem, spatial and time is tracked down by GPS and another dimensions are assessed by dedicated monitors.
I know that PostGIS have a multipoint object, but all example that I have seen on the web are limited to 4D. Is it possible to use this structure to store multiple concentrations in addition of space and time. If so, is there a simple way to get rid of extra dimensions such as concentrations and time, when we are just working on space? If I want to post process my data with QGIS, will I be able to use such structure?