Here are some possibilities of use of Argonautica/ArgoHydro data:

Observe the variations of a stream over the months, and from one year to another

Rivers and lakes vary in level with the seasons (depending on climate), with peaks and troughs of varying magnitude from year to year, but generally in the same months for a given river or lake. This information can be correlated (or not!) with meteorological data such as precipitation, either monthly or climatological (30-year averages), but also potentially with other sources of water supply to rivers such as snowmelt.

See the case study: Les saisons de la Garonne

Note, however, that with satellite measurements, monitoring a very brief event (such as a flood), whether at a given location or along the course of the river, is likely to lack data, since satellites do not measure the same point or nearby points every hour or every few hours.

Compare rivers or lakes under two different climates

Rivers vary in different modes, depending on the climate along their course, sometimes up to their sources. Comparing two rivers under two different climates can highlight the rainy and dry seasons and their intensities. Lakes, and possibly the rivers that feed them, can also be observed from this angle.

See the relationship between rivers and the lake they feed (or the opposite).

There are relationships between rivers and lakes. Some rivers feed a given lake, or conversely, a lake can flow into a river.

An example is the Nile basin in Africa. Several expeditions took place in the 19th century to find the sources of the Nile River, with among the hypotheses of the time some of the great African lakes (Lake Victoria in particular).

Compare with similar in situ measurements

A number of organizations measure lakes and rivers using instruments installed on site. Comparing them with measurements taken by other means makes it possible to verify ("validate") the measurements, or even to calibrate the instruments against each other, to make sure that they are measuring the same thing.

Compare with other measurements in situ or by satellite


Water temperature may (or may not) be correlated with its level, for example, although in the case of rivers and even lakes this correlation will not be significantly due to the expansion of water under the effect of its heat as may be the case in the oceans.