Creating a dump file for 2001

JULES
1

Hi there,
I am running an ISIMIPa JULES suite, I asked for help to shorten the period that originally started in 1801. Thanks to you, I did it, but I made the first run from 1981 when I wanted 2001 to match the dump files and the initial conditions (from 1991 every ten years). Then, with that run (u-dh532), I expected to create the dump files that helped me to make the desired run from 2001. It made sense for us to decrease the length of each spinup cycle to 1 year to have dump outputs every year, but it didn’t work. The output dump files are for 1981, 1987, 1990, 2000, 2005, 2010, 2011, 2017,2020 and 2022. I have no clue how to force it to output on 2001; I would appreciate your help.

Note:
I appreciate your help before; a couple of topics were closed before I said thank you.

2

please point me to where the dumps are written

3

The dump files and the model results are in /work/scratch-pw3/eempvg/u-dh532/20CRv3-ERA5/.

4

Thanks.

these dumps at 6-yr intervals presumably correspond to the cycle frequency (6yrs)
dump.19810101
dump.19870101
dump.19930101
dump.19990101
dump.20050101
dump.20110101
dump.20170101

these dumps
dump.19900101
dump.20000101
dump.20100101
dump.20200101
arise from the setting dump_period = 10yrs (see 6.35. output.nml — Joint UK Land Environment Simulator (JULES) v7.4 User Guide)

I am not sure where dump.20220101 comes from.

So to get a dump at 2001, try setting dump_period = 21

Grenville

5

Hi Grenville,
The model is running with the suggested dump_period = 21, I will let you know when it finished. I am optimistic. Thank you very much :grinning:.

Note: regarding the dump output in 2022, it probably is because that is the last year for the model.

Maria Paula

6

Note: regarding the dump output in 2022, it probably is because that is the last year for the model. – Yes that make sense

Grenville

7

Hi Greenville,

The model has already reached 2005, and the new dump files out of the outputted before are for 1995, and the model skips the output for 2001 :frowning:
I had dump_period = 21; I don’t understand why it was output in 1995 and not in 2001.

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Any idea is appreciated.

Maria Paula

8

Hi Maria Paula

Well, that’s not all what I expected given what the documentation says.

I would try setting dump_period = 1. It should soon be apparent if this is going to work.

Grenville

1 Like
9

Hi Grenville,
Now I have my dump file for 2001.
Thank you very much for your help :blush:

Maria Paula

10

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