Worldview Tutorial

Narration: Katy Mersmann

Transcript:

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NASA’s fleet of Earth-observing spacecraft provides

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a unique view of our home planet...and from your computer,

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you can view and share that dynamic planet as it is “right now.”

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Using NASA’s Worldview app you can watch tropical storms

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develop over the Pacific Ocean; track the movement of icebergs after they

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calve from glaciers and ice shelves; see wildfires spread and grow

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grow as they burn vegetation in their path.

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And pan and zoom to your region of the world to not only see what it looks like today, but to

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investigate changes over time. With Worldview’s map interface,

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capture what’s interesting to you with a snapshot or an animated gif.

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Start by going to worldview.earthdata.nasa.gov.

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When you first open the app, Worldview

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has a pre-loaded natural color image – observed by the MODIS instrument onboard

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NASA’s Terra satellite. If you’d like to experiment with NASA’s

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other satellite views of our home planet, you can click the “Add Layers” button

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button on the left side of the screen and find different ways to look at Earth.

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Once you’ve got your layer selected,

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pan and zoom into the location you’re interested in.

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You can also switch from the traditional geographic view

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to a polar view, to take a closer look at the Arctic or Antarctic regions.

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Now it’s time to create your gif. Click the video camera icon

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on the left side of the timeline along the bottom of the page.

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Select the date range you’re interested in. Worldview automatically sets

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to 10-day increments, but you can increase or decrease that timespan, and look at

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present day or the past. If you’re looking at the present day, you may

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see a big black swath. That’s because the data is so new,

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it’s still coming down! Step back a day to get a full image.

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Click the "Create Animated GIF" icon on the right

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side of the Animation box. Drag and adjust the box to select the region you want,

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then click the orange arrow in the middle. There it is!

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Worldview has created your gif and you can download it! Now for the most important step...

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share it! You can post it online with

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#NASA4Earth to help NASA, and the rest of us here on our home planet,

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celebrate Earth Day.