1. Introduction

Introductory section describing the article and the rationale for collecting the dataset. Make sure you consider appropriate background literature.
 [CE1]More catchy for an intro sentence ?
 [CE2]Sentence seems to come out of the blue, maybe modify intro sentence or switch paragraph order
 [CE3]Weather history paragraph would be best here
 [CE4]What do you mean by traditions ?
 [CE5]Unclear
 [CE6]Should be referenced as «(Nasa, date)»
 [CE7]Shouldn’t we only describe the reanalysis one and only cite the other two as it is the only one we are interested in ?
 [CE8]Need a link with previous paragraph
 [CE9]Doesn’t sound objective
 [CE10]Is it relevant ?
 [CE11]We can also add some info from the discussion point «assessment of ERA5» ? (Not sure)
 [CE12]Adding a paragraph on air temperature variable or putting it entirely in method ? 
 [CE13]Need a connection words or sentence to link with previous paragraph and fluidify reading
 [CE14]Maybe putting it just before the paragraph that begins with «In a recent paper»