CrowdMag 2.2.6

The latest release of CrowdMag introduces a new feature known as Flight Mode, designed to facilitate contributions to scientific research through magnetic field measurements during air travel. Users can input their flight itineraries within the app, effectively transforming their journeys into scientific data collection efforts. A detailed step-by-step tutorial is available at https://geomag.colorado.edu/crowdmag-flight-mode-tutorial for users seeking guidance on measuring magnetic data while in flight.

CrowdMag is an application that enables users to measure local magnetic fields with their smartphones. The app displays magnetic data both graphically and on maps, with measurements provided in nanoteslas. It captures three key magnetic components: Z (vertical or downward), H (horizontal intensity), and F (total magnetic field). The application can be employed during outdoor activities, flights, or individual experiments, and offers the option to share data with NOAA, supporting efforts to enhance understanding of Earth’s magnetic environment.

For outdoor activities such as walking or running, users can document magnetic measurements along their routes and save these as "magtivities." The app also provides data backup capabilities—users can export their data to a computer, ensuring preservation when switching devices or performing resets, allowing seamless continuation of their contributions.

Additional features include a magnetic calculator utilizing the latest World Magnetic Model (WMM2020), providing calculations for declination (magvar), dip angle, and total magnetic field strength. CrowdMag further offers customization options for recording frequency and location precision, data export via email or Google Drive, and access to aggregated crowdsourced data from other users.

An integrated compass displays both true and magnetic north distinctly. An advanced 3D display feature is available, along with optional audio output, enhancing navigational awareness.

CrowdMag’s principal capabilities encompass:

• Creation of personalized "magtivities"
• Magnetic measurements during flights
• Adjustable recording settings for frequency and accuracy
• Visualization of data on interactive Google Maps
• Time series graphing of magnetic readings
• Validation of data quality against the World Magnetic Model
• Export of datasets in CSV format
• Data management through clearing stored information
• Optional sharing with NOAA
• Viewing generalized crowdsourced data from other users
• Utilization of live 2D and 3D magnetic compasses
• Information display regarding solar magnetic disturbances
• Use of the most current WMM2020 model for data accuracy
• Multiple options for data export and backup management
• Import functionality for backups created on different platforms

For further details and access to crowdsourced magnetic data, please visit https://geomag.colorado.edu/crowdmag.