Elements

Elements
Different countries estimate daily average temperatures using different methods and formulae. Also, the time intervals for observing minimum and maximum temperature differ and the time interval for accumulating 24h rainfall differ. The table below describes the different "Ele ID" values available for each element in the database. These recording characteristics are included when downloading the daily data.
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Element	Ele ID	Description	Unit
MAXIMUM TEMPERATURE (TX)
	TX1	Maximum temperature, 7-7 local time	0.1 °C
	TX2	Maximum temperature, 0-0 UTC	0.1 °C
	TX3	Maximum temperature, unknown interval	0.1 °C
	TX4	Maximum temperature derived from 24 hourly values, 0-0 local time	0.1 °C
	TX5	Maximum temperature morning today 09 local time until morning next day	0.1 °C
	TX6	Maximum temperature between 12 and 0 UTC	0.1 °C
MINIMUM TEMPERATURE (TN)
	TN1	Minimum temperature, 7-7 local time	0.1 °C
	TN2	Minimum temperature, 0-0 UTC	0.1 °C
	TN3	Minimum temperature, unknown interval	0.1 °C
	TN4	Minimum temperature derived from 24 hourly values, 0-0 local time	0.1 °C
	TN5	Minimum temperature morning previous day 09 local time until morning today	0.1 °C
	TN6	Minimum temperature between 12 and 0 UTC	0.1 °C
MEAN TEMPERATURE (TG)
	TG1	Average temperature of 3 measurement at 7,13 and 18 local time	0.1 °C
	TG2	Average temperature, 0-0 UTC	0.1 °C
	TG3	Average temperature, unknown interval	0.1 °C
	TG4	Mean temperature calculated as average of TN and TX	0.1 °C
	TG5	Mean temperature, 7-7 local time	0.1 °C
	TG6	Mean temperature as average of 24 hourly values, 0-0 local time	0.1 °C
SUNSHINE (SS)
	SS2	Daily sunshine, 0-0 UTC	0.1 Hours
	SS1	Daily sunshine, 7-7 local time	0.1 Hours
	SS3	Daily sunshine, 8.00-16.00 local time	0.1 Hours
	SS4	Daily sunshine, unknown interval	0.1 Hours
PRECIPITATION AMOUNT (RR)
	RR2	Precipitation amount, 7-7 local time	0.1 mm
	RR3	Precipitation amount, 0-0 UTC	0.1 mm
	RR1	Precipitation amount, unknown interval	0.1 mm
	RR4	Precipitation amount 0-0 local time (sum of 24 values)	0.1 mm
	RR5	Precipitation amount, 8-8 local time	0.1 mm
	RR6	Precipitation amount morning previous day 09 local time until morning today (shifted 1 day back by SACA staff)	0.1 mm
	RR7	Precipitation amount 0 and 0 UTC (sum of two 12-hourly values)	0.1 mm
PRESSURE (PP)
	PP2	Sea level pressure at 07 local time	0.1 hPa
	PP3	Sea level pressure at 0 UTC	0.1 hPa
	PP1	Sea level pressure, unknown interval	0.1 hPa
	PP4	Mean sea level pressure, 7-7 local time	0.1 hPa
	PP5	Mean sea level pressure of 3 measurement at 7,13 and 18 local time	0.1 hPa
	PP6	Mean sea-level pressure as average of 24 hourly values, 0-0 local time	0.1 hPa
RELATIVE HUMIDITY (HU)
	HU1	Average relative humidity 07,13 and 18 local time	1 %
	HU2	Mean relative humidity as average of 24 hourly values, 0-0 local time	1 %
	HU3	Average relative humidity, unknown interval	1 %
WIND SPEED (FG)
	FG1	Average wind speeds of 24 hourly measurements of 10-min average (7-7 local time)	0.1 m/s
	FG2	Average wind speed, unknown interval	0.1 m/s
	FG3	Average wind speedof 3 measurement at 7,13 and 18 local time	0.1 m/s
	FG4	Mean wind speed as average of 24 hourly values, 0-0 local time	0.1 m/s
WIND DIRECTION (DD)
	DD2	Average wind direction of 3 measurements at 07,14 and 18 local time	degrees
	DD3	Mean wind direction as average of 24 hourly values, 0-0 local time	degrees
	DD4	Wind direction at 12.00 local time	degrees