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Home On top of the trailer, upper right, is the part of the WIND instrument that shoots a laser beam to measure winds miles offshore of Virginia Beach, VA. (Credit: Sean Smith/NASA) On top of the trailer, upper right, is the part of the WIND instrument that shoots a laser beam to measure winds miles offshore of Virginia Beach, VA. (Credit: Sean Smith/NASA)

On top of the trailer, upper right, is the part of the WIND instrument that shoots a laser beam to measure winds miles offshore of Virginia Beach, VA. (Credit: Sean Smith/NASA)

On top of the trailer, upper right, is the part of the WIND instrument that shoots a laser beam to measure winds miles offshore of Virginia Beach, VA. (Credit: Sean Smith/NASA)

On top of the trailer, upper right, is the part of the WIND instrument that shoots a laser beam to measure winds miles offshore of Virginia Beach, VA. (Credit: Sean Smith/NASA)

Grady Koch explains how the DAWN instrument measures offshore wind speed and direction. (Credit: Sean Smith/NASA)