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37 38 terms

Agroclimatology

A field in the interdisciplinary science of agrometeorology, in which principles of climatology are applied to agricultural production systems. Its origins relate to climate’s foremost role in plant and animal production.

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A thermally driven wind arising from differential heating between a land mass and the adjacent ocean that reverses its direction seasonally.

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Normalized Difference Vegetation Index (NDVI)

A vegetation index commonly used as an indicator of drought. NDVI is a measure of vegetation greenness calculated by a normalized ratio between red and near infrared (NIR) radiation. Healthy, photosynthetic vegetation reflect NIR radiation and absorb red light in the visible spectrum.

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Oscillation

In meteorology, oscillation is a shift in the position of high and low pressure systems, usually in the same place. These are often described using an index (often a single number that represents the distribution of temperature and pressure over a wide area, usually over the oceans, such as the El Niño-Southern Oscillation, North Atlantic Oscillation, or Pacific Decadal Oscillation).

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