I have wasted several hours and tried lots of things but still can't achieve the perfect match which the editor of a journal wants. Here is a picture of the style required:
So far I can manage using this MWE some of the result.
\documentclass{article}
\usepackage[british]{babel}
\usepackage{csquotes}
\usepackage{hyperref}
\usepackage[natbib=true,%
backref=true,%
backend=biber,%
style=ext-authoryear,%
articlein=false,%
giveninits=true,%
maxbibnames=9,maxcitenames=2,%
uniquelist=false]{biblatex}
\DeclareFieldFormat[article]{volume}{Vol. #1}
\DeclareFieldFormat[article]{number}{\addnbspace No. #1}
\DefineBibliographyStrings{english}{
andothers = {\mkbibemph{et\addabbrvspace al\adddot}}
}
\renewcommand{\nameyeardelim}{,}
%\addbibresource{../Xbib.bib}
\RequirePackage{filecontents}
\begin{filecontents}{mybib1.bib}
%
@Article{bru30,
author = {Jean-Louis Bertrand and Xavier Brusset},
title = {Managing the financial consequences of weather variability},
journal = {Journal of Asset Management},
journaltitle = {Journal of Asset Management},
year = {2018},
date = {2018-07-16},
volume = {19},
issue = {5},
pages = {301-315},
doi = {10.1057/s41260-018-0083-x},
file = {:Managing the financial consequences of weather variability_JAM.pdf:PDF},
groups = {Meteo},
owner = {XB},
}
@Article{laz1,
author = {J. K. Lazo and M. Lawson and P. H. Larsen and D. M. Waidmann},
title = {U.{S}. economic sensitivity to weather variability},
journal = {Bulletin of American Meteorological Society},
year = {2011},
volume = {92},
pages = {709-720},
groups = {Meteo},
owner = {XB},
timestamp = {2013.11.12},
}
\end{filecontents}
\begin{document}
This document must be compiled after having defined the bibtex command to \texttt{biber.exe}.
Minimum working example where using \parencite{bru30}. When there are various authors to a paper: \parencite{laz1}.
\printbibliography
\end{document}
As you can see from the output, several things are not correct. The given names' initials should always follow the family name, there shouldn't be a date with the year of the publication, the full stop after the year should be a comma, the title of the article should be between inverted commas, the separator between the title and the journal should be a comma. The doi should be preceded by "available at:" Which style is that? How can I imitate it? Thank you.

@inproceedingsentries, but your MWE contains@artcleentries, so it is not entirely clear to me what is wanted here. – moewe Mar 28 '20 at 19:25\DeclareNameAlias{sortname}{family-given}. For the commas\renewcommand{\newunitpunct}{\addcomma\space}seems to be best (you won't need\renewcommand{\nameyeardelim}{,}then; in any case don't ever use a naked,when you defined punctuation inbiblatex, use\addcomma). – moewe Mar 28 '20 at 19:27biblatex.biblatexrequires a different workflow from classic BibTeX, which might be a problem for publishers. Usually journals that accept LaTeX submissions have some kind of author guidelines and sometimes even LaTeX templates that tell you which packages you should use and how you should generate the bibliography. I would not try to usebiblatexunless specifically instructed to do so. Check with the editor before you go ahead. https://tex.stackexchange.com/a/12179/ – moewe Mar 28 '20 at 19:33