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Elements
 
See also: ICA&D KNMI Climate Explorer
 
 

Daily data > Data dictionary > 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

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

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

SEA LEVEL 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 GUST (FX)

 

FX1

Maximum wind gust, 7-7 local time

0.1 m/s

 

FX2

Maximum wind gust, unknown interval

0.1 m/s

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