MARS

Specifies the analysis date, the forecast base date or observation date.

date=<value>

Valid formats are:

• Absolute as YYYY-MM-DD, YYYYMMDD. The day of the year can also be used: YYYY-DDD
• Relative as -n ; n is the number of days before today (i.e., -1 = yesterday )
• Name of month (e.g. January for Climatology data)
• Operational monthly means are retrieved by setting day (DD) to 00.

Examples

This directive is particularly recommended when retrieving large datasets.

For ODB data the date refers to andate column, i.e. the date of the assimilation run.

Dissemination

Specifies the hindcast base date.

date=<value>

For hindcast data, the only value for the parameter DATE (date on which the hindcast is based) supported in dissemination is ALL. Hindcasts are only run on

THURSDAY (00 UTC based ENS run).