Can you Identify Grain and Extent?

Quiz

Question
A is a blurred black dot, b is a less blurred black dot, and c is a more crisp black dot than a and b

What image depicts the finest grain size?

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Question
a is a small circle, b is a bigger circle, c is a large circle

What image depicts the largest extent?

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Question
Global land-ocean temperature index indicates that annual mean temperature is variable from 1880 to 2000, but a 5 year running mean shows increasing temperature trends more smoothly

What is the spatial and temporal extent depicted in this figure from NASA?

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Question
organic matter trends over centuries (0 - 50), years (0-1), or days (0-2).

What is the broadest temporal extent depicted in the Figure below?

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Question

Consider a map of global temperatures in 2020, which of the following best describes what would happen if the pixel size (i.e., grain size) was increased?

Looks Good! Correct, increasing grain size results in pixels that are more alike and therefore reduces variance among pixels.
Question

Which of the following best describes observational scale?

Looks Good! Correct, observational scale provides space and time context for measurements.
Question

Which of the following is an example of a broad-scale constraint?

Looks Good! Correct, climate poses a broad-scale constraint on how much crops can be produced across regions.
Question

Fine-scale events can become broad-scale events when which of the following occurs?

Looks Good! Correct, when local events occur synchronously over a large extent they emerge at broader scales.