Of Science and Sensors: TWIGA at AGU
The Fall Meeting of the American Geophysical Union (AGU) is each year one of the highlights of many environmental scientists. The conference is probably the biggest gathering of earth and environmental sciences in the world, with around 25,000 attendees. This year the event landed in the cavernous convention center of Washington DC. Several TWIGA members attended this year’s fall meeting, including our principal investigator Nick van de Giesen. Nick gave an invited presentation on the use of sensors in TWIGA in the “MacGyver session”, which is a tong-in-cheek reference to the television series that aired the 1980s.
The MacGyver session is a classic of AGU. It is organized by Nick’s colleague Rolf Hut and gives a platform to scientists who are creative with technology and try to come up with novel or unintended ways of applying new technologies, such as the use of umbrellas to collect rain data.
Our group from Imperial College London hosted a technology-oriented session as well, on the scientific design and application of sensor networks, which is one type of technology that we are keen to explore as part of the TWIGA project. We invited Rolf to speak in our session, and he managed to give a live demonstration to the audience of how you can use a smartphone to send data from a sensor directly to a server on the internet.
Other exciting talks in our session explained how to use cameras to measure river flow, and cosmic rays to measure soil moisture.
In short, the generated information has to “useful, usable, and used”. Making sure that a technical innovation ticks those three boxes is a big challenge that requires many disciplines to work together. This includes experts in fields as diverse as psychology, user interface design, and information theory.
The scientific community is slowly waking up to this need for interdisciplinarity, and several sessions at the AGU Fall Meeting are making an effort to stimulate interaction between disciplines. In the same meeting, the Imperial team had the opportunity to present some of our work on working with social scientists to use low-cost sensors to support community-based flood warning and resilience building in Nepal, where we work with the NGO Practical Action. This gives us useful insights into how we can apply citizen science in the context of building resilience to natural hazards.
The challenge is now to put that experience to good use when we start designing and testing new sensors for TWIGA!
Written by Wouter Buytaert