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GLOBE Clouds: Getting Started

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Help NASA Scientists. Observe clouds while a satellite is overhead.

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Open the app and choose Clouds.

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Verify the time and location.

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What does your sky look like?

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Obscurations are conditions like smoke, dust, and heavy rain that block your view of the sky.

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Cloud cover is the percentage of the sky covered by clouds.

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Look in each direction before estimating.

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Sky color is the deepest blue observed.

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Look at the entire sky before selecting a shade.

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Sky visibility refers to how far you can see.

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Looking at the horizon, how far can you see?

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Look closely at the features of the clouds, like the shape and altitude.

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Having trouble determining what clouds are in the sky?

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Tap the question-mark on the bottom right.

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Opacity refers to how much light passes through the clouds. Look at the center of the cloud.

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Report the surface conditions.

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Take photos of the sky.

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Rotate your phone and align the dots to take a photo in each direction.

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Send your observations to GLOBE Observer to share them

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with researchers and other citizen scientists.

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GLOBE Observer observer.globe.gov

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globe.gov

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nasa.gov