COVID-19 mortality correlation with cloudiness, sunlight, latitude in European countries

"COVID-19 mortality correlation with cloudiness, sunlight, latitude in European countries"

Dataset for preprint titled 
"COVID-19 mortality: positive correlation with cloudiness but no correlation with sunlight and latitude in Europe"
https://doi.org/10.1101/2021.01.27.21250658 

by SECIL OMER, ADRIAN IFTIME, VICTOR BURCEA

Corresponding author: A. Iftime, University of Medicine and Pharmacy "Carol Davila", Biophysics Department, 8 Blvd. Eroii Sanitari, 050474 Bucharest, Romania. Email address: adrian.iftime [at] umfcd.ro.

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Dataset file: 
2.0.0.COVID-19_Mortality_Cloudiness_Insolation_EUROPE_March_December_2020.csv

Dataset graphical preview: 
2.0.0.INFOGRAPHIC_CloudFraction_vs_COVID-19_mortality_Europe_March-December_2020.png

DATASET:
444 rows (records), with the following fields:

"Country" :
    Country name; 37 European countries included.

"Date": 
    Date stamp at the collection time.
    Data collection was performed in the last day of every month. 
    Date format: YYYY-MM-DD

"Month_Key" : 
    Date stamp at the collection time, formatted for easier monthly time series analysis.
    Date format: YYYY-MM

"Month_Fct2020"
    Date stamp at the collection time,formatted for easier graphing, as a string with names of the months
    (in English). 

"Deaths_per_1Mpop" :
    Monthly mortality from COVID-19 raported in the country, 
    reported as number of COVID-19 deaths per 1 million population of the country, 
    in that particular month / country. 
    NB: it is reported as million population, not patients. 

"LogDeaths_per_1Mpop" :
    Log10 transformation of "Deaths_per_1Mpop"

"Insolation_Average" :
    Insolation average (solar irradiance at ground level),
    in that particular month / country. 
    It is expressed in Watt / square meter of the ground surface. 
    Data derived from data avaialble at NASA Langley Research Center, NASA’s Earth Observatory, 
    CERES / FLASHFlux team, 2020, 
    https://neo.gsfc.nasa.gov/view.php?datasetId=CERES_INSOL_M
    (old link: https://neo.sci.gsfc.nasa.gov/view.php?datasetId=CERES_INSOL_M )

"Cloud_Fraction" :
    Cloudiness (also known as cloud fraction, cloud cover, cloud amount or sky cover),
    as decimal fraction of the sky obscured by clouds, 
    in that particular month / country. 
    Data derived from NASA Goddard Space Flight Center, NASA’s Earth Observatory,
    MODIS Atmosphere Science Team, 2020, 
    https://neo.gsfc.nasa.gov/view.php?datasetId=MODAL2_M_CLD_FR
    (old link: https://neo.sci.gsfc.nasa.gov/view.php?datasetId=MODAL2_M_CLD_FR  )

"CENTR_latitude" and
"CENTR_longitude" :
    Latitude and Longitude of the country centroid, for each country. 
    Data derived from Google LLC, "Dataset publishing language: country centroids",
    https://developers.google.com/public-data/docs/canonical/countries_csv    
    NOTE: This is identical in every month (obviuously); 
    it is redundantly included for easier monthly sectional analysis of the data.  

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Versioning of the dataset: 
MAJOR: changes yearly; 1 = 2020
MINOR: changes if new monthly data is added in that particular year. 
PATCH: Changes only if errors or minor edits were performed. 

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CHANGELOG: 

Version 2.0.0.COVID-19_Mortality_Cloudiness_Insolation_EUROPE_March_December_2020.csv
- CERES/FLASHFLUX data for August-December 2020 became available at new links at nasa.gov
- These data were gathered, analyzed and introduced in this dataset (2.0.0). 
- updated links for CERES/FLASHFLUX and MODIS dataset
- added DOI link for preprint
- minor edits on text. 
-Dataset file source for this version (internal analysis source file):
db_covid_all-ANALYSIS.2020-all-year_versiunea18d.csv

Version 1.0.0.COVID-19_Mortality_Cloudiness_Insolation_EUROPE_March_August_2020.csv 
First version
Dataset file source for this version (internal analysis source file):
db_covid_all-ANALYSIS.2020-09-22_r10.csv