Table 2 Data labels and description for data values file (values.csv).

From: A global database of lake surface temperatures collected by in situ and satellite methods from 1985–2009

Value label—change to this

Value description

Lake_Temp_Summer_InSitu

Mean lake surface water temperatures for the summer 3-month period collected by in situ methods in degree centigrade

Air_Temp_Mean_Summer_NCEP

Mean air temperature for the summer 3-month period in degree centigrade, from NCEP

Air_Temp_Mean_Annual_NCEP

Annual mean air temperature in degree centigrade, from NCEP

Air_Temp_Mean_Winter_NCEP

Mean air temperature for the winter 3-month period in degree centigrade, from NCEP

Lake_Temp_Summer_Satellite

Mean lake surface water temperatures for the summer 3-month period collected by satellite methods in degree centigrade

Radiation_Shortwave_Summer

Amount of incoming shortwave radiation, during the summer 3-month period in watts per square meter, from SRB

Radiation_Shortwave_Winter

Amount of incoming shortwave radiation, during the winter 3-month period in watts per square meter, from SRB

Radiation_Longwave_Summer

Amount of incoming longwave radiation, during the summer 3-month period in watts per square meter, from SRB

Radiation_Longwave_Winter

Amount of incoming longwave radiation, during the winter 3-month period in watts per square meter, from SRB

Radiation_Total_Summer

Total amount of incoming radiation, as calculated from shortwave and longwave in watts per square meter, during the summer 3-month period

Radiation_Total_Winter

Total amount of incoming radiation, as calculated from shortwave and longwave in watts per square meter, during the winter 3-month period

Radiation_Shortwave_Annual

Amount of incoming shortwave radiation during the year in watts per square meter, from SRB

Radiation_Longwave_Annual

Amount of incoming longwave radiation during the year in watts per square meter, from SRB

Radiation_Total_Annual

Total amount of incoming radiation during the year, as calculated from annual shortwave and longwave in watts per square meter

Cloud_Cover_Summer

Mean % cloud cover for the summer 3-month period, from PATMOS

Cloud_Cover_Winter

Mean % cloud cover for the winter 3-month period, from PATMOS

Cloud_Cover_Annual

Annual mean of % cloud cover, from PATMOS

Air_Temp_Max_Summer_CRU

Mean of the daily maximum air temperatures for the summer 3-month period in degree centigrade, from CRU

Air_Temp_Max_Annual_CRU

Mean of the daily maximum air temperatures for the year in degree centigrade, from CRU

Air_Temp_Max_Winter_CRU

Mean of the daily maximum air temperatures for the winter 3-month period in degree centigrade, from CRU

Air_Temp_Mean_Summer_CRU

Mean air temperature for the summer 3-month period in degree centigrade, from CRU

Air_Temp_Mean_Annual_CRU

Annual mean air temperature in degree centigrade, from CRU

Air_Temp_Mean_Winter_CRU

Mean air temperature for the winter 3-month period in degree centigrade, from CRU

Air_Temp_Min_Summer_CRU

Mean of the daily minimum air temperatures for the summer 3-month period in degree centigrade, from CRU

Air_Temp_Min_Annual_CRU

Annual mean of the daily minimum air temperatures in degree centigrade, from CRU

Air_Temp_Min_Winter_CRU

Mean of the daily minimum air temperatures for the winter 3-month period in degree centigrade, from CRU

Air_Temp_DTR_Summer_CRU

Mean of the daily diurnal temperature range (DTR) (calculated as the daily maximum minus the daily minimum) for the summer 3-month period in degree centigrade

Air_Temp_DTR_Annual_CRU

Annual mean of the daily diurnal temperature range (DTR) (calculated as the daily maximum minus the daily minimum) in degree centigrade

Air_Temp_DTR_Winter_CRU

Mean of the daily diurnal temperature range (DTR) (calculated as the daily maximum minus the daily minimum) for the winter 3-month period in degree centigrade

  1. See the text for how ‘summer’ is defined for each lake location. ‘Winter’ is defined as the 3-month period opposite to ‘summer’ in the calendar year (e.g., winter is January-February-March for lakes where summer is July-August-September, and vice versa). Air temperatures were obtained from National Centers for Environmental Prediction (NCEP) and Climatic Research Unit (CRU), radiation from Surface Radiation Budget (SRB) and cloud cover from Advanced Very High Resolution Radiometer Pathfinder Atmosphere Extended dataset (PATMOS).
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