Datasets used in the publication "Global carbon dioxide efflux from rivers enhanced by high nocturnal emissions", published in Nature Geoscience (https://www.nature.com/articles/s41561-021-00722-3). It consists of three files:
-"all_hourly_flux": file with all data for all sites at hourly resolution
-"all_daily_flux.csv" : file with summarised values for all sites at daily resolution
-"all_site_metadata.csv" : file with metadata for each site. Author of the repository: Gerard Rocher-Ros.
Contact: [email protected] ######
Units for the file: "all_hourly_flux"
code;label;units
site;Stream Id;none
datetime; time stamp; "YYYY-MM-DD HH:MM:SS"
co2; partial pressure of co2 in water; ppm
kgas; gas transfer velocity of co2; m d-1
q; discharge; L s-1
flux.mol.m2.h; flux of co2 to (+) or from (-) the atmosphere; mol C m-2 h-1
######
Units for the file: "all_site_metadata"
code;label;units
site;Stream Id;none
lat;Latitude;degrees
long;Longitude;degrees
elevation;Elevation;m
country;Country;none
biome;Biome;none
canopy;Riparian coverage ;Category
slope;Channel slope;m m-1
q;Discharge;L s-1
temp;Water temperature ;°C
doc;DOC;mg L-1
no3;NO3-;µg L-1
nh4;NH4+;µg L-1
ph;pH ;none
cond;Conductivity;µS cm-1
area;Area;km2
bare;Bare;%
grass;Grass;%
crops;Crops;%
forest;Forest;%
mat;Mean annual temperature (MAT);°C
map;Mean annual precipitation (MAP);mm
mar;Mean annual radiation (MAR);KJ m-2
tgpp;Total annual gross primary production (GPP);g C m-2
soc;Soil organic carbon content (SOC);g kg-1
pco2.day;pCO2 Day-time;
pco2.night;pCO2 Night-time;
pco2.diff.ppm;Absolute night-day difference pCO2;ppm
pco2.diff.per;Relative night-day difference pCO2;%
fco2.day;CO2 evasion day-time;g C m-2 d-1
fco2.night;CO2 evasion night-time;g C m-2 d-1
fco2.diff.gc;Absolute night-day difference fCO2;g C m-2
fco2.diff.per;Relative night-day difference fCO2;%
nobs.higher.night;Occurences when night > day;%

Datasets used in the publication "Global carbon dioxide efflux from rivers enhanced by high nocturnal emissions", published in Nature Geoscience (https://www.nature.com/articles/s41561-021-00722-3). It consists of three files:
-"all_hourly_flux": file with all data for all sites at hourly resolution
-"all_daily_flux.csv" : file with summarised values for all sites at daily resolution
-"all_site_metadata.csv" : file with metadata for each site. Author of the repository: Gerard Rocher-Ros.
Contact: [email protected] ######
Units for the file: "all_hourly_flux"
code;label;units
site;Stream Id;none
datetime; time stamp; "YYYY-MM-DD HH:MM:SS"
co2; partial pressure of co2 in water; ppm
kgas; gas transfer velocity of co2; m d-1
q; discharge; L s-1
flux.mol.m2.h; flux of co2 to (+) or from (-) the atmosphere; mol C m-2 h-1
######
Units for the file: "all_site_metadata"
code;label;units
site;Stream Id;none
lat;Latitude;degrees
long;Longitude;degrees
elevation;Elevation;m
country;Country;none
biome;Biome;none
canopy;Riparian coverage ;Category
slope;Channel slope;m m-1
q;Discharge;L s-1
temp;Water temperature ;°C
doc;DOC;mg L-1
no3;NO3-;µg L-1
nh4;NH4+;µg L-1
ph;pH ;none
cond;Conductivity;µS cm-1
area;Area;km2
bare;Bare;%
grass;Grass;%
crops;Crops;%
forest;Forest;%
mat;Mean annual temperature (MAT);°C
map;Mean annual precipitation (MAP);mm
mar;Mean annual radiation (MAR);KJ m-2
tgpp;Total annual gross primary production (GPP);g C m-2
soc;Soil organic carbon content (SOC);g kg-1
pco2.day;pCO2 Day-time;
pco2.night;pCO2 Night-time;
pco2.diff.ppm;Absolute night-day difference pCO2;ppm
pco2.diff.per;Relative night-day difference pCO2;%
fco2.day;CO2 evasion day-time;g C m-2 d-1
fco2.night;CO2 evasion night-time;g C m-2 d-1
fco2.diff.gc;Absolute night-day difference fCO2;g C m-2
fco2.diff.per;Relative night-day difference fCO2;%
nobs.higher.night;Occurences when night > day;%