Commentaries on Top-Cited Boundary - Layer Meteorology Articles

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Commentaries on Top-Cited Boundary-Layer Meteorology Articles John Garratt1 · James Wilczak2 · Albert Holtslag3 · Hans Peter Schmid4 · Andrey Grachev2 · Anton Beljaars5 · Thomas Foken6 · Fei Chen7 · Christopher Fairall2 · Bruce Hicks8 · Hiroyuki Kusaka9 · Alberto Martilli10 · Valéry Masson11 · Matthias Mauder4 · Steven Oncley7 · Mathias Rotach12 · Michael Tjernström13

© Springer Nature B.V. 2020

1 Introduction Brief critiques are given for: 1. Articles related to flux–gradient relations and eddy-correlation measurements, viz. Dyer (1974), Louis (1979), Moore (1986), Wilczak et al. (2001), Finnigan et al. (2003; together with Finnigan 2004). 2. Articles related to PBL modelling, viz. Deardorff (1980) and Troen and Mahrt (1986). 3. Articles related to urban meteorology, specifically urban canopy schemes, viz. Masson (2000), Kusaka et al. (2001), and Martilli et al. (2002). These actually provide an interesting and very informative glimpse of the historical development of techniques that underpin key components of contemporary measurement and

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John Garratt [email protected]

1

CSIRO, Melbourne, Australia

2

NOAA, Boulder, CO, USA

3

Wageningen University, Wageningen, The Netherlands

4

KIT, Garmisch-Partenkirchen, Germany

5

ECMWF, Reading, UK

6

University of Bayreuth, Bayreuth, Germany

7

NCAR, Boulder, CO, USA

8

Metcorp, Norris, TN, USA

9

University of Tsukuba, Tsukuba, Japan

10

CIEMAT, Madrid, Spain

11

Meteo-France, Toulouse, France

12

University of Innsbruck, Innsbruck, Austria

13

MISU, Stockholm, Sweden

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J. Garratt

numerical methodologies. Several of these articles complement others that appeared in other journals—we have in mind one that JRG was closely associated with, viz. Webb et al. (1980) regarding the influence of density fluctuations on measured eddy covariances. Another is associated with the pioneering numerical investigations of James Deardorff on the neutral and unstable planetary boundary layers, with and without clouds, viz. Deardorff (1972). Unfortunately, not all invited contributions arrived in good time, and in the spirit of Corporal Jones’ “Don’t panic, don’t panic” (refer BBC TV, circa 1970) JRG asked, at short notice, the authors of Wilczak et al. (2001), Masson (2000), and Martilli et al. (2002) to submit short comments on their own articles. They rose to the challenge, and are included, even though Hans Peter Schmid’s critique of Wilczak et al. (2001), Finnigan et al. (2003), and Finnigan (2004) arrived just in time to be included! For practical purposes, acronyms (e.g., MOST) and initialisms (e.g., NWP) are defined here for use in all commentaries. Some are not defined at all, but may be found in the appropriate reference (e.g., COARE, KEYPS). I mention: LES  large-eddy simulation, MOST  Monin–Obukhov similarity theory, NWP  numerical weather prediction, PBL  planetary boundary layer, TKE  turbulence kinetic energy.

2 Article: Louis (1979)—by A Beljaars, AAM Holtslag, and M Tjernström In the 1970s, a cooperative European project was initiated t