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

date = 20180918/20180919 # The 18th and 19th September 2018

date = 2018-145 # The 145th day in 2018

date = 20180101/to/20180131 # Every day in September 2018

date = -2 # The day before yesterday

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

Dissemination

Specifies the re-forecast base date.

date=<value>

This keyword is only used for re-forecasts. The only value for the parameter DATE (date on which the re-forecast is based) supported in dissemination is ALL. Re-forecasts are only run on

MONDAYS and THURSDAYS (00 UTC based ENS run). This can be specified with the keyword use.

Value Note

all

Only all is supported for re-forecasts

off

For non re-forecast data

For STREAM=EFHS and TYPE=EM/ES/TAEM/TAES

Examples

disseminate, # Specifies 20 years of ensemble re-forecasts
stream = enfh, # for the same day
number = 1/to/10,
date = all,
use = monthly run thursday/monthly run monday,
.../...