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five years of sporting events but today

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one of the Goodyear airships is also

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hidden science the perspective they need

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to study an important final related

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problem aboard the blank column

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long beach california after Denise

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NASA's Jet Propulsion Laboratory works

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the device measures ocean surface

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temperatures present a weather

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satellites equipped with similar sensors

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are used to measure heat radiated by the

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sea but satellites don't detect these

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temperature signals until they have

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traveled through the Earth's atmosphere

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dr. pagan believes that water vapor in

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the air close to the ocean surface

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distorts these satellite readings a

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better understanding of this problem

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will improve the prediction of climate

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change and blow away the radiometer

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being used in the study shown here at

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the NASA lab being prepared for a blimp

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flight is essentially a three foot tall

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infrared telescope the device can detect

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a temperature change as small as two

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thousandth of a degree dr. Hagan

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explained if you took a block of ice and

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threw it into your standard backyard

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size swimming pool and distributed the

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ice uniformly it would cause a change in

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temperature to thousands of a degree and

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that's the precision of our instrument a

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blink is the ideal way to fly

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because it moves slowly and fly close to

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the surface

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vibration free during a measurement

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fight a gold-plated mirror suspended

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readings are taken at a range of

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altitude 200 to 3,000 feet while dr.

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Hagan works aboard the airship other

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members of her team the ocean

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temperature readings from approp below

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highly instrumented boy is the partner

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area where the blimp in the center these

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measures

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later compared with those gathered by

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transmitted back to earth by the weather

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satellites this is done at the Scripps

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Institution of Oceanography in la jolla

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california

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although she's just in the early stages

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of her investigation dr. Higgins

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expectations are high if we can improve

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our understanding of the mechanism that

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controls the behavior of water vapor and

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how it absorbs radiation at the surface

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then I think we will have made our