CrowdMag is a smartphone app that is exploring whether digital magnetometers in modern smartphone can be used as scientific instruments.
The Earth geomagnetic field is all around us and is used for navigation on most planes, ships and on smartphones. However the field changes with time and space, where these changes are tracked by observations, satellite and ship/airborne surveys. However, there are gaps in coverage, as well as quality issues.
This is where microvolunteers can come in and help, as the CrowdMag app records the earth geomagnetic field automatically in the back ground which helps to:
- Create near real time models of Earth’s time changing magnetic field
- Map local magnetic interferences
Available as an iPhone or Android smartphone app.