Published: Mon, November 20, 2017
Health Care | By Alberto Manning

See 20 years of Earth's season changes in under a minute

See 20 years of Earth's season changes in under a minute

A new NASA map resulting from 20 years of observing "life" on our home planet has discovered long-term changes across continents and ocean basins. "That's the Earth, that is it breathing every single day, changing with the seasons, responding to the Sun, to the changing winds, ocean currents and temperatures".

The polar ice caps and snow cover are shown ebbing and flowing with the seasons. Meanwhile, the changing colours of the ocean show undersea life thriving - or dying. This was because shrubs expanded their range as they thrive in warmer temperatures.

"It's like watching the Earth breathe. It's really remarkable", said Jeremy Werdell, a Nasa oceanographer who took part in the project.

"It's like all of my senses are being transported into space, and then you can compress time and rewind it, and just continually watch this kind of visualization". They've observed fisheries evolving, deserts expanding, spring coming earlier and fall coming later all over the world and in our region.

On the sea side, Mr Werdell was struck by "this hugely productive bloom of biology" that exploded in the Pacific along the equator from 1997 to 1998, when a water-warming El Nino event merged into cooling La Nina.

More news: Pentagon releases sexual assault data by base, adds caution

The data visualization, released this week, shows Earth's fluctuations as seen from space. Though NASA is known primarily for its space missions, the agency focuses extensively on Earth science, too, training a variety of satellites down toward our own planet.

"These are incredibly evocative visualisations of our living planet", said Gene Carl Feldman, from NASA's Goddard Space Flight Centre in the US, PTI quoted.

Apart from creating the video, the data over the span of 20 years also helped scientists track phytoplankton populations in the ocean, study vegetation change in the Arctic reaches of North America and monitor crop yields among other things.

As Nasa launches new remote-sensing satellites and improves its computer systems, the visualisation is set to keep changing over time.

Like this: