# Creating a dump file for 2001 **URL:** \ **Category:** JULES\ **Tags:** JASMIN\ **Created:** [25 July 2024 10:40 UTC](https://cms-helpdesk.ncas.ac.uk/t/creating-a-dump-file-for-2001/1492 "2024-07-25T10:40:24Z")\ **Posts on this page:** 10\ **Page:** 1
**Author:** ![MariaPVG](https://dub1.discourse-cdn.com/flex013/user_avatar/cms-helpdesk.ncas.ac.uk/mariapvg/32/431_2.png) [@MariaPVG](https://cms-helpdesk.ncas.ac.uk/u/MariaPVG)\ **Post date:** [25 July 2024 10:40 UTC](https://cms-helpdesk.ncas.ac.uk/t/creating-a-dump-file-for-2001/1492/1 "2024-07-25T10:40:24Z")
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. ---
**Author:** ![grenville](https://dub1.discourse-cdn.com/flex013/user_avatar/cms-helpdesk.ncas.ac.uk/grenville/32/29_2.png) [@grenville](https://cms-helpdesk.ncas.ac.uk/u/grenville)\ **Post date:** [25 July 2024 11:43 UTC](https://cms-helpdesk.ncas.ac.uk/t/creating-a-dump-file-for-2001/1492/2 "2024-07-25T11:43:27Z")
please point me to where the dumps are written ---
**Author:** ![MariaPVG](https://dub1.discourse-cdn.com/flex013/user_avatar/cms-helpdesk.ncas.ac.uk/mariapvg/32/431_2.png) [@MariaPVG](https://cms-helpdesk.ncas.ac.uk/u/MariaPVG)\ **Post date:** [25 July 2024 11:53 UTC](https://cms-helpdesk.ncas.ac.uk/t/creating-a-dump-file-for-2001/1492/3 "2024-07-25T11:53:02Z")
The dump files and the model results are in /work/scratch-pw3/eempvg/u-dh532/20CRv3-ERA5/. ---
**Author:** ![grenville](https://dub1.discourse-cdn.com/flex013/user_avatar/cms-helpdesk.ncas.ac.uk/grenville/32/29_2.png) [@grenville](https://cms-helpdesk.ncas.ac.uk/u/grenville)\ **Post date:** [25 July 2024 12:44 UTC](https://cms-helpdesk.ncas.ac.uk/t/creating-a-dump-file-for-2001/1492/4 "2024-07-25T12:44:52Z")
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](https://jules-lsm.github.io/latest/namelists/output.nml.html#JULES_OUTPUT::dump_period)) I am not sure where dump.20220101 comes from. So to get a dump at 2001, try setting `dump_period` = 21 Grenville ---
**Author:** ![MariaPVG](https://dub1.discourse-cdn.com/flex013/user_avatar/cms-helpdesk.ncas.ac.uk/mariapvg/32/431_2.png) [@MariaPVG](https://cms-helpdesk.ncas.ac.uk/u/MariaPVG)\ **Post date:** [25 July 2024 13:22 UTC](https://cms-helpdesk.ncas.ac.uk/t/creating-a-dump-file-for-2001/1492/5 "2024-07-25T13:22:53Z")
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 😀. Note: regarding the dump output in 2022, it probably is because that is the last year for the model. Maria Paula ---
**Author:** ![grenville](https://dub1.discourse-cdn.com/flex013/user_avatar/cms-helpdesk.ncas.ac.uk/grenville/32/29_2.png) [@grenville](https://cms-helpdesk.ncas.ac.uk/u/grenville)\ **Post date:** [25 July 2024 13:37 UTC](https://cms-helpdesk.ncas.ac.uk/t/creating-a-dump-file-for-2001/1492/6 "2024-07-25T13:37:03Z")
_Note: regarding the dump output in 2022, it probably is because that is the last year for the model._ – Yes that make sense Grenville ---
**Author:** ![MariaPVG](https://dub1.discourse-cdn.com/flex013/user_avatar/cms-helpdesk.ncas.ac.uk/mariapvg/32/431_2.png) [@MariaPVG](https://cms-helpdesk.ncas.ac.uk/u/MariaPVG)\ **Post date:** [26 July 2024 14:20 UTC](https://cms-helpdesk.ncas.ac.uk/t/creating-a-dump-file-for-2001/1492/7 "2024-07-26T14:20:13Z")
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 ☹ I had `dump_period` = 21; I don’t understand why it was output in 1995 and not in 2001. ![image](https://europe1.discourse-cdn.com/flex013/uploads/cms_support/original/1X/fe9a5896cc7dcdb4109256366753722936729a89.png) Any idea is appreciated. Maria Paula ---
**Author:** ![grenville](https://dub1.discourse-cdn.com/flex013/user_avatar/cms-helpdesk.ncas.ac.uk/grenville/32/29_2.png) [@grenville](https://cms-helpdesk.ncas.ac.uk/u/grenville)\ **Post date:** [26 July 2024 15:01 UTC](https://cms-helpdesk.ncas.ac.uk/t/creating-a-dump-file-for-2001/1492/8 "2024-07-26T15:01:50Z")
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 ---
**Author:** ![MariaPVG](https://dub1.discourse-cdn.com/flex013/user_avatar/cms-helpdesk.ncas.ac.uk/mariapvg/32/431_2.png) [@MariaPVG](https://cms-helpdesk.ncas.ac.uk/u/MariaPVG)\ **Post date:** [30 July 2024 12:25 UTC](https://cms-helpdesk.ncas.ac.uk/t/creating-a-dump-file-for-2001/1492/9 "2024-07-30T12:25:08Z")
Hi Grenville, Now I have my dump file for 2001. Thank you very much for your help 😊 Maria Paula ---
**Author:** ![system](https://europe1.discourse-cdn.com/flex013/uploads/cms_support/original/1X/1fd2411499ffcbc299fe756cd5cdf26e44956558.png) [@system](https://cms-helpdesk.ncas.ac.uk/u/system)\ **Post date:** [1 August 2024 12:26 UTC](https://cms-helpdesk.ncas.ac.uk/t/creating-a-dump-file-for-2001/1492/10 "2024-08-01T12:26:07Z")
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