and abc 7 news reporter david louie spoke to people taking part in the project and he's live hat moffatt. hi, david. >> reporter: ama, until now the principal way researchers have determined how much plastic is out in the pacific is from observation from boats. the new area expedition will provide much greater detail as to how much plastic needs to be rounded up and taken to shore. the converted c-130 hercules dubbed ocean force 1 is back from one of two flights set for this week to do a low-speed, low altitude survey of the great ocean garbage patch, a huge debris field made up of discarded fishing nets and assorted plastic buoys and containers. about 1,000 miles off the california coast. >> it's worse than we thought, and, again, this underlines the urgency of why we need to clean it up. >> reporter: 22-year-old veteran and entrepreneur is behind a campaign to clean up 150 million pounds of trash. about half of a total in a decade. this week's mission will give his team a better sense of the value and waste of the waste using an imaging sense it called lidar. it's a system that helps r