# Issues with ACCESS-rAM: ocean domains (u-dg767) and NaNs in BICGstab (u-dg768) **URL:** \ **Category:** rAM3/Regional Nesting Suite\ **Tags:** help, access-ram\ **Created:** [16 April 2025 02:20 UTC](https://forum.access-hive.org.au/t/issues-with-access-ram-ocean-domains-u-dg767-and-nans-in-bicgstab-u-dg768/4418 "2025-04-16T02:20:34Z")\ **Posts on this page:** 1\ **Showing post:** 6
**Author:** ![coreyrobinson](https://avatars.discourse-cdn.com/v4/letter/c/51bf81/32.png) [@coreyrobinson](https://forum.access-hive.org.au/u/coreyrobinson)\ **Post date:** [17 April 2025 00:00 UTC](https://forum.access-hive.org.au/t/issues-with-access-ram-ocean-domains-u-dg767-and-nans-in-bicgstab-u-dg768/4418/6 "2025-04-17T00:00:14Z")
Actually, it turns out that the domain is not _quite_ completely ocean, as there’s a few land grid points I only noticed after zooming in. The vegfrac ancil files seem to be consistent with this too. However, the qrclim.land and qrparm.soil are still the old version with the domain further north (these correspond to the tasks that failed in the suite). ![Screenshot 2025-04-17 at 9.54.42 am](https://us1.discourse-cdn.com/flex020/uploads/access1/original/2X/3/3927019233a3574fac81a3f02dabd41e37e57fd1.png) Edit: it looks like the 9 land points at d0198 resolution correspond to the 9 points listed in the `job.out` log for ancil\_cap\_vegfrac (see my first post). Perhaps there’s missing data from the soil dataset being accessed? Edit 2: Okay, I think this is the same issue as [previously discussed for Aus2200](https://forum.access-hive.org.au/t/aus2200-vegetation-fraction-ancil-creation-issues/1972), given the same areas are coming up in Paul’s ancil notebook (turns out I just forgot to change resolution to d0198!). I’m pretty sure this is Norfolk Island. Will check out the suggestions there and see if I can get it to work. For the BICGstab issue, I will try re-running the model with a reduced time step since I’ve heard that can sometimes fix things. If that doesn’t work then I’ll report back here. --- _[View the full topic](https://forum.access-hive.org.au/t/issues-with-access-ram-ocean-domains-u-dg767-and-nans-in-bicgstab-u-dg768/4418)._