Hypercooling in the Nocturnal Boundary Layer: Broadband Emissivity Schemes

• DOI: 10.1175/jas-d-11-0269.1
• Publication Date: 2012-04-30T15:27:38Z
• Authors: V. K. Ponnulakshmi; V. Mukund; D. K. Singh; K. R. Sreenivas; G. Subramanian
• Keywords: Spurious relationship; Radiative Cooling; Opacity

Abstract Broadband flux emissivity schemes are often used to model infrared radiative exchanges in the atmosphere. In particular, such help highlight interaction of radiation with other transport processes, an aspect that is crucial understanding phenomena relevant nocturnal boundary layer (NBL). Although original were restricted radiatively black bounding surfaces, extension same nonblack surfaces has since been frequently NBL modeling. Herein, it shown erroneous and leads a spurious yet intense near-surface cooling opaque bands. This paper presents correct formulation eliminates this discusses some detail earlier calculations affected by error.