 Plotting data in geomap app is very simple. First, scroll down under the menu, data sets and find water column properties. Next, scroll down to world ocean data for temperature, salinity, oxygen, and nutrients. At this point, a thousand locations will open up on a map. Select the location of which you want to plot data, and click. This will open up a table as seen below. Next, go to the right side of this table and point to the link while holding down command and shift, and this will open plots as shown here on the right. This plot shows temperature against depth, temperature on the y-axis and depth on the x-axis. If you want to view plots for salinity, oxygen, and nutrients, scroll down in the menu as shown here. For some of these sites, not all of the variables are represented, for example, oxygen and nutrients, in which case, choose another site close by on the map, or choose another site in the table, and click holding down command and shift, and this will open up a new set of plots.