### Instruction:

Extract the cause and effect entities from the following sentence:
Because of the recent improvements to both the modelling of the land surface and assimilation at the Met Office the source of the satellite data will need to be from a recent observing period

### Assistant:

KEYWORD: Because of
VARIABLE: the modelling of the land surface
AND: both
CAUSE_1: the modelling of the land surface
CAUSE_2: assimilation at the Met Office
CONDITION: will need to be from a recent observing period
EFFECT_1: the source of the satellite data will need to be from a recent observing period

