A NEW LONG-WAVE FORMULA FOR ESTIMATING DOWNWARD CLEAR-SKY RADIATION AT THE SURFACE

Authors
PRATA AJ
Citation
Aj. Prata, A NEW LONG-WAVE FORMULA FOR ESTIMATING DOWNWARD CLEAR-SKY RADIATION AT THE SURFACE, Quarterly Journal of the Royal Meteorological Society, 122(533), 1996, pp. 1127-1151
Citations number
38
Categorie Soggetti
Metereology & Atmospheric Sciences
Journal title
Quarterly Journal of the Royal Meteorological Society → ACNP
ISSN journal
00359009
Volume
122
Issue
533
Year of publication
1996
Part
A
Pages
1127 - 1151
Database
ISI
SICI code
0035-9009(1996)122:533<1127:ANLFFE>2.0.ZU;2-S
Abstract
A new formula is proposed for estimating the long-wave radiation from clear skies. The formula depends on screen-level air temperature and w ater vapour pressure. The formula has been extensively tested using lo ng-wave measurements covering a large range of environmental temperatu res (-40 to +40 degrees C), and by using radiosonde profiles and an ac curate radiative-transfer model (Lowtran-7). It is shown that the new formula out-performs five other widely used formulas.