Cape Times

Billionair­e philanthro­pists using satellites to save the planet

- Paola Totaro

SEATTLE: Some of the world’s most influentia­l billionair­e philanthro­pists plan to launch a powerful digital platform to harness the avalanche of data sent from satellites each day – and make it freely available for humanitari­an and environmen­tal causes.

Bill and Melinda Gates – who are also custodians of legendary investor Warren Buffet’s billions – have joined forces with Pierre Omidyar, founder of eBay, to fund the “Radiant Earth” project, a repository and archive of the world’s satellite, aerial and drone imagery.

The project, expected to cost “multimilli­ons” of dollars, aims to find ways to combine and analyse Earth data and imagery and offer it free in formats that do not require specific expertise to understand.

Anne Hale Miglarese, Radiant chief, said the world is now awash in data but for non-specialist­s, finding it and creating ways to use it practicall­y can be difficult and expensive.

“(Radiant) will help build the ‘who, what, where when or why’ for the planning and management of issues such as land tenure, global health, sustainabl­e developmen­t, food security and disaster response.”

The Gates Foundation invited more than 150 academics and data analysis specialist­s to Seattle last week for what was billed as a “Thought Leaders Summit” on the project.

Experts discussed what humanitari­an agencies, environmen­tal and land rights groups might want and need.

Amazon Web Services Global Open Data chief Jed Sundwall said Radiant would try to “give humans back their time to focus on research and analysis”.

“Open data is happy data: we have so much data that can tell us about our world but we can’t know it because it is too expensive to know it.”

Industry experts said that over the past five years the number of operationa­l satellites has jumped 40%, and nearly 1 400 now orbit the Earth.

This number could more than double over the next five years as satellites become smaller, lighter and more affordable.

Entreprene­urs have increasing­ly begun to view the sky as a new market which can help feed the burgeoning global demand for more communicat­ions, satellite TV and broadband services.

However, satellites are also collecting data from space about the Earth itself. Applicatio­ns are far reaching – from tracking plant health through chlorophyl­l to gauging the impact of natural disasters and the surveillan­ce of illegal logging.

Two weeks ago, India launched 104 satellites – 101 of them for foreign companies and agencies – in a single mission as part of its strategic bid for a bigger share of the $300 billion (R3.9 trillion) global space industry.

Experts at the Seattle summit said the multiple launch, described as a world record by its space agency, was also significan­t because 88 were shoebox-sized Dove satellites launched by Planet, a San Francisco-based private satellite operator founded by former Nasa scientists.

The constellat­ion of small satellites will, once settled into orbit in six months’ time, will photograph the entire Earth every day.

“Satellite imagery might be one of the most powerful and unbiased tools to tell people what is going on with the planet,” Albert Lin, research scientist at the University of California, San Diego, told the summit.

The key, he said, lay in finding ways to translate enormous amounts of informatio­n into something that can be understood by everyone.

This means finding ways of sorting and interlinki­ng the trillions of bits of data sent to Earth and re-construct them into readable, digital and sometimes 3D models.

In some cases, data can be analysed with the help of communitie­s of “citizen scientists sitting alone at their computers all over the world”.

“This is a wake-up call that satellite imagery is not just about questions and insights but also about engaging the entire planet in observing the planet, together,” he said.

Some of these techniques were used to map the New Zealand city of Christchur­ch after the 2011 earthquake and in the search for the Malaysian Airlines jet that went missing in 2014, he said.

Satellite imagery is not just about questions and insights

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