caa a22 4500 469076305 CHVBK 20180323132935.0 cr unu---uuuuu 170328e19920101xx s 000 0 eng 10.1007/BF02507777 doi (NATIONALLICENCE)springer-10.1007/BF02507777 Zoumakis N. Laboratory of Atmospheric Physics, Technological Education Institute (T.E.I.), P.O. Box 14561, 54101, Thessaloniki, Greece aut On the relationship between the gradient and the bulk Richardson number for the atmospheric surface layer [Elektronische Daten] [N. Zoumakis] Summary: Semi-empirical formulations which have been proposed to describe the wind and potential temperature profiles are used to derive relationships between the gradient Richardson number, Ri, the finite-difference layer Richardson number, Rib, the surface layer Richardson number, Ris, and the bulk Richardson number,B, through the atmospheric surface layer. The theoretical analysis for stable conditions indicates that Ri (z 3)=Rib, wherez 3=(z 2−z 1)/ln(z 2/z 1), andz 2;z 1=upper and lower levels at which temperature and wind speed are specified. It is also found that, during stable conditions, the wind profile power law exponent,p, is computed at the heightz 3, instead of the widely used geometric mean height,z m, between top (z 2) and bottom (z 1) of the layer considered. Società Italiana di Fisica, 1992 Meteorology nationallicence Il Nuovo Cimento C Kluwer Academic Publishers 15/1(1992-01-01), 111-114 0390-5551 15:1<111 1992 15 11543 https://doi.org/10.1007/BF02507777 text/html Onlinezugriff via DOI 1 brief-communication jats NATIONALLICENCE 856 40 https://doi.org/10.1007/BF02507777 text/html Onlinezugriff via DOI NATIONALLICENCE 100 1- Zoumakis N. Laboratory of Atmospheric Physics, Technological Education Institute (T.E.I.), P.O. Box 14561, 54101, Thessaloniki, Greece aut NATIONALLICENCE 773 0- Il Nuovo Cimento C Kluwer Academic Publishers 15/1(1992-01-01), 111-114 0390-5551 15:1<111 1992 15 11543 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer