How Satellite Maps Help Prevent Another ‘Great Grain Robbery’

Typography

Vegetative health has become an important metric for climate scientists and meteorologists trying to understand how weather and temperature impact the health of crops, and as an extension, food security, food prices and the global agricultural market.

Mid-June in Utah usually marks the tail end of the most fertile time of year for crops. In a typical year, snowmelt in April and May wets the soil, resulting in a burst of blooming flowers and crop growth.

“Usually we have a beautiful, green landscape right now,” said Dr. Jon Meyer, a research climatologist with the Utah Climate Center. “It’s one of my favorite times of year because we get green for six weeks — and then we go back to brown for the rest of the year.”

Not so this year. Drought has gripped the American West, and in Utah, more than 92 percent of the state meets the criteria for “extreme drought,” fueled by what Dr. Meyer described as “a deadly combination of record heat and record dry.” In a recent presentation on drought in the Southwest, Meyer showed a collection of grim indicators: high temperatures, little rainfall, low soil moisture, and finally, poor vegetative health.

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Image via NASA Goddard Space Flight Center