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The resistance law for stably stratified atmospheric planetary boundary layers
Quarterly Journal of the Royal Meteorological Society ( IF 3.0 ) Pub Date : 2021-03-17 , DOI: 10.1002/qj.4019 Evgeny Kadantsev 1, 2 , Evgeny Mortikov 3, 4, 5 , Sergej Zilitinkevich 1, 2, 3, 6
Quarterly Journal of the Royal Meteorological Society ( IF 3.0 ) Pub Date : 2021-03-17 , DOI: 10.1002/qj.4019 Evgeny Kadantsev 1, 2 , Evgeny Mortikov 3, 4, 5 , Sergej Zilitinkevich 1, 2, 3, 6
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The resistance law for stably and neutrally stratified atmospheric planetary boundary layers (PBL) entered textbooks on boundary-layer meteorology but, until now, remains practically unused in modelling applications. This is not surprising. The law has been formulated and validated only for idealised cases, such as truly neutral PBL – implying neutral stratification across the entire atmosphere, nocturnal stable PBL – stably stratified near the surface but developed against the neutrally stratified free flow, and (more recently) conventionally neutral PBLs – neutrally stratified near the surface but developed against stable stratification in the free flow. We derive and validate the general formulation of the resistance law accounting for the integral effect on PBL of stable stratifications at the surface and in the free atmosphere. Such long-lived stable PBLs, typical of wintertime at high latitudes, were until recently overlooked in boundary-layer meteorology, not to mention weather and climate models. The proposed general formulation of the resistance law covers long-lived stable PBLs and opens up prospects for their improved modelling.
中文翻译：
大气行星边界层稳定分层的阻力定律
稳定和中性分层的大气行星边界层 (PBL) 的电阻定律进入了边界层气象学教科书，但直到现在，在建模应用中实际上仍未使用。这并不奇怪。该定律仅针对理想化情况制定和验证，例如真正的中性PBL——意味着整个大气中的中性分层、夜间稳定的PBL——稳定地在地表附近分层但针对中性分层的自由流动而发展，以及（最近）传统上中性的PBLs – 在地表附近中性分层，但在自由流动中反对稳定分层。我们推导出并验证了阻力定律的一般公式，该公式解释了地表和自由大气中稳定分层对 PBL 的积分效应。这种长寿命的稳定PBL，是高纬度地区冬季的典型特征，直到最近才在边界层气象学中被忽视，更不用说天气和气候模型了。阻力定律的拟议一般公式涵盖了长期稳定的 PBL，并为其改进建模开辟了前景。
更新日期：2021-03-17
中文翻译：
大气行星边界层稳定分层的阻力定律
稳定和中性分层的大气行星边界层 (PBL) 的电阻定律进入了边界层气象学教科书，但直到现在，在建模应用中实际上仍未使用。这并不奇怪。该定律仅针对理想化情况制定和验证，例如真正的中性PBL——意味着整个大气中的中性分层、夜间稳定的PBL——稳定地在地表附近分层但针对中性分层的自由流动而发展，以及（最近）传统上中性的PBLs – 在地表附近中性分层，但在自由流动中反对稳定分层。我们推导出并验证了阻力定律的一般公式，该公式解释了地表和自由大气中稳定分层对 PBL 的积分效应。这种长寿命的稳定PBL，是高纬度地区冬季的典型特征，直到最近才在边界层气象学中被忽视，更不用说天气和气候模型了。阻力定律的拟议一般公式涵盖了长期稳定的 PBL，并为其改进建模开辟了前景。
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