Water dam failure: space-based monitoring system gets the go-ahead for expansion

HR Wallingford will broaden our space-based dam monitoring system, DAMSAT, to include water dams in a bid to reduce the risk of failures. The UK Space Agency has extended our funding following a pilot project to monitor tailings dams used to store toxic mine waste in Peru. Ultimately the technology could be employed worldwide to reduce the risks to those living downstream of dams.

Goggle-Earth

Caption: The region of Cerro de Pasco, Peru will be monitored during HR Wallingford’s DAMSAT water dam trial.

Over the next two years, HR Wallingford will use the ground-breaking DAMSAT software to monitor movement at several water dams in the Cerro de Pasco region of Peru. The system uses Earth Observation (EO) techniques – including the analysis of spectral responses and iron traces from satellite images as well as data from navigation systems – combined with real-time in-situ devices

The consequences of water dam failures can be catastrophic. Earlier this year a breach at Tiware dam in India flooded seven villages and swept away 20 people, according to local media reports. DAMSAT could help to prevent such devastation by alerting authorities of problems with structures before they are at risk of failing.

Marta Roca Collell, project manager at HR Wallingford, said: ‘DAMSAT allows authorities to monitor dams remotely, particularly useful in isolated locations or where there are concerns about dam management’.

DAMSAT’s potential in the water sector is huge.  Globally, nearly 60,000 dams are registered with the International Commission for large Dams (ICOLD), which are estimated to hold 16, 201 km3 of water – the same volume as around 6.5 billion Olympic-sized swimming pools.

HR Wallingford leads the research consortium alongside international partners. The group is sponsored by the UK Space Agency’s International Partnership Programme (IPP), a five-year, £152 million programme designed to partner UK space expertise with overseas governments and organizations to deliver sustainable, economic or societal benefits.

GNSS equipment installed

In March, Ricardo Noguera and Maria de Farago from Telespazio Vega UK visited Colquirrumi with our partners from CIEMAM and installed the SUMMIT System: 3 SUMMIT Sensors (Global Navigation Satellite System) and their wifi antennas as well as the SUMMIT Box.

Maria and Ricardo in Colquirrumi with the GNSS equipment

Weather was not the best but everything went well and all the equipment is connected and starting to record.

Heavy rain during the installation of equipment

Visiting Peru

A team from HR Wallingford and the Fundación visited several of our stakeholders in Lima and Cajamarca in February 2019.

Preview of DAMSAT

We showed them the first version of DAMSAT, our monitoring tool for dams and other tailings deposits. Feedback was very positive and useful. We will implement suggestions in the second release of the tool.

Screenshot of DAMSAT tool
At ANA (National Water Authority) offices in Cajamarca, ready to start the presentation

Site visits in the pilot area

We also had the opportunity to visit some of our sites in the pilot area. All is ready to  install the GNSS equipment. This equipment will measure in-situ possible movements of tailings dams in two of our pilot sites.

Under the rain, checking the works for the installation of the GNSS equipment at Colquirrumi
Cerro Corona tailings dam, one of the sites in our pilot area
Hualgayoc (Silver necklace in Quechua) is one of the villages located in our pilot area