Acars question - weather data from aircraft

[Julian Hensey]

Not sure this is tech, but see if any of you can come up with the answer.

I am interested in the data sent from aircraft reporting winds at heights through ACARS. Here is an example.

I want to know:

1. Where is it sent to and for what purposes?
2. Is it automatic at set times, sent on request by the pilot or is it ground interrogation by a user?

Thanks for anyone's help....

ACARS mode: X Aircraft reg: G-Message label: H1 [Message to/from terminal] Block id: 0 Msg no: D62CFlight id: Message content:-#DFB7 343/095 TB/ S111
DES 5043N 00052E 1101 F182 MS200 346/095 TB/ S011
DES 5046N 00046E 1103 F159 MS157 347/089 TB/ S011
DES 5051N 00037E 1104 F137 MS112 347/083 TB/ S011
333 F2North: 0.05 East: 11.01