Sonda Mushroom | Water, Water, Everywhere!


The Challenge | Water, Water, Everywhere!

Develop a tool that provides emergency management personnel with an up-to-date flood-risk map for an area of interest.

Sonda Mushroom

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Sonda Mushroom


Our team has decided to focus our research on the water problem, specifically problems brought by floods.

The mushroom sonar was born from the idea of being able to provide an information service in real time and predictive, on rivers, lakes and other water sources, which, paired with data from the national and global weather forecast - Nasa station-, will allow us to predict possible floods and their consequences in critical areas.

According to the population density and other factors such as industries, hospitals and police stations available in the area, we have developed a predictive map, which distinguishes between areas of low, medium and high risk.


All our measurements are made by special hardware which has been adapted to our necessities, called Sonar. This is made up of different sensors:

  • a temperature sensor, which allows us to detect thermal changes in the water and collect data about possible changes in the ecosystem.
  • an oximeter, which measures the level of oxygen present in the water, and allows us to know about changes in the aquatic ecosystem’s structure.
  • a Ph module, which measures the levels of acid in the water and allows us to detect changes in the deep currents and/or movements of the sediment.
  • an echo sounder, which measures the distance between the surface and bottom of the lake.
  • a GPRS module, which allows us to connect to an internet server and also the location - HTTP protocol.
  • an Arduino Mega, which is responsible for connecting all the sensors and peripherals and is in charge of requesting the data gathering and its transmission to the server.

All data gathered is sent to our server, where it’s processed and paired with the information obtained from weather reports.


Once in the server, our web app takes the data and the weather reports and allows us to obtain information in real time about the environmental state and variations of rivers and their affluents, and therefore know the areas in danger in the case of an overflow, providing information about the number of people that may be affected by it.

With all this data, a report is made which, depending on the population density, will be disseminated with a considerable amount of time; in the case of highly populated areas, the government will be informed; and in the case of rural areas, the population will be directly informed, so as to organise an action plan.

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SpaceApps is a NASA incubator innovation program.