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-as of [17 APRIL 2024]–
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also known as the atmospheric boundary layer (ABL),
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-in ‘meteorology’ the planetary boundary layer (PBL), is the lowest part of the ‘atmosphere’-
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(aka “the troposphere”)
(its behavior is directly influenced by its contact with a planetary surface)
(on ‘earth’ it usually responds to changes in ‘surface radiative forcing’ in an hour or less)
(in this layer physical quantities such as ‘flow velocity’, ‘temperature’, ‘moisture’, etc., display rapid fluctuations (aka ‘turbulence’) and ‘vertical mixing’ is strong)
(above the PBL is the “free atmosphere” where the wind is approximately ‘geostrophic’ (aka ‘parallel to the isobars’) while within the ‘PBL’ the wind is affected by ‘surface drag’ and turns across the ‘isobars’)
(the ‘free atmosphere’ is usually ‘nonturbulent’, or only intermittently ‘turbulent’)
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👈👈👈☜*-EARTH ATMOSPHERIC SUBDIVISIONS-* ☞ 👉👉👉
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*🌈✨ *TABLE OF CONTENTS* ✨🌷*
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🔥🔥🔥🔥🔥🔥*we won the war* 🔥🔥🔥🔥🔥🔥