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I'm Gail Skofronick-Jackson, the Global Precipitation
Measurement Project Scientist. This is a great

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dataset that has recently been delivered by
the Global Precipitation Measurement team.

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It shows that we are able to measure both
the regional scale and the global scales of

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precipitation at a very fine temporal resolution
every 30 minutes. IMERG provides high resolution

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data, 10 kilometers by 10 kilometers, about
the size of a suburb of a city. I'm George

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Huffman, I'm the Deputy Project Scientist
for the GPM mission. What this new dataset

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does is to look under the clouds and see what
the precipitation is doing. This is a new

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effort and considerably more difficult than
the cloud maps. In the Northern Hemisphere

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we have a summer season, but in the Southern
Hemisphere, you see a winter season. And during

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the winter season we all expect to see snow,
and as you can see in the blue-colored part,

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we are actually getting snow from these algorithms
that are estimating falling snow from space.

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In particular I've really appreciated looking
at the Southern Ocean, that is the band of

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ocean that runs south of South America, Africa,
and Australia. When you look at the Southern

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Ocean, you see these numerous swirls. There's
very little land to get in the way and as

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a result, these storms just swirl around Antarctica
continually. In the tropics near the Equator,

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the precipitation tends to run from East to
West, and it's very, what we call, convective.

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A lot of splotchy stuff that comes and goes
quickly. The rain that falls over your backyard

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might actually affect the people in Europe
as the storms go across the Atlantic Ocean.

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They might affect the tropical rains. And
all the precipitation is interrelated all

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around the globe.