CoastSnap: Empowering Communities to Monitor Australia’s Dynamic Coastlines

Australia’s beaches are ever-changing, shaped by tides, storms and human activity. Understanding these changes is crucial for effective coastal management. Enter CoastSnap, an innovative community-driven project transforming everyday beachgoers into citizen scientists, all armed with just a smartphone.

Who’s Behind CoastSnap?

CoastSnap was conceived in 2017 by Dr Mitchell Harley from UNSW’s Water Research Laboratory and Mike Kinsela from the NSW Office of Environment and Heritage. Their vision was to harness the power of community participation to monitor and understand coastal dynamics.

What Is CoastSnap?

At its core, CoastSnap is a low-cost beach monitoring technology that turns smartphones into powerful coastal observation tools. Specially designed stainless steel camera cradles are installed at strategic beach locations, allowing visitors to capture consistent photographs of the shoreline. These images, when shared via social media or email, contribute to a growing database that tracks how coastlines evolve over time.

Why Is It Important?

Australia’s coastlines are dynamic, influenced by factors like rising sea levels and extreme weather events. Traditional coastal monitoring methods can be expensive and labour-intensive. CoastSnap offers a cost-effective alternative by engaging the community in data collection. The amassed photographs provide valuable insights into patterns of erosion and accretion, informing better coastal management and planning decisions.

Where Is CoastSnap Active?

The initiative began on Sydney’s Northern Beaches, with the first camera cradle installed at Manly Beach in May 2017. Since then, CoastSnap has expanded globally, boasting over 350 stations across 30 countries, making it the largest coordinated, land-based coastal monitoring program worldwide.

To find CoastSnap cradle locations near you, visit the CoastSnap locations page.

How Does It Work?

Beach visitors place their smartphones into the fixed CoastSnap cradles and take a photo of the shoreline. By sharing these images through designated channels, each photo is timestamped and geolocated, ensuring consistency. Over time, these community-contributed images create a time-lapse record of coastal changes. Advanced algorithms process the photos to measure shoreline positions accurately, turning them into mini satellite images that allow researchers to track the coastline’s evolution.

Get Involved

Participating in CoastSnap is simple and rewarding. Next time you’re at a participating beach, look for the CoastSnap camera cradle, position your smartphone, snap a photo and share it as directed. By doing so, you’re contributing to vital research that helps protect and preserve Australia’s beautiful coastlines for future generations.

CoastSnap exemplifies how community engagement and technology can come together to address environmental challenges, turning a simple beach outing into an opportunity for scientific contribution.

Find out more at CoastSnap.