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Introduces a dedicated DA output tape (only activated under `USE_PDAF`) that writes instantaneous snapshots of the fields registered on tape 1 (h0) before and after each DA update. The "DA-tape" is appended as ntapes+1 at initialisation, but never auto-triggered by the normal CLM driver. The DA-tape produces per-cycle files named `caseid.clm2.da_bef.YYYY-MM-DD-SSSSS.nc` or `caseid.clm2.da_aft.YYYY-MM-DD-SSSSS.nc`. Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
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Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
Instead of a separate rollover block, propagate if_disphist(1) to the DA tapes after hist_do_disp so the standard close and ntimes-reset loops handle them uniformly. DA tapes are excluded from the file-reopen branch (closing always finalises the file; the next DA write opens a fresh one) and their ntimes is reset whenever dispatched rather than only when the tape is full. Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
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Introduces a dedicated DA output tape (only activated under
USE_PDAF) that writes instantaneous snapshots of the fieldsregistered on tape 1 (h0) before and after each DA update.
The "DA-tape" is appended as ntapes+1 at initialisation, but never
auto-triggered by the normal CLM driver.
The DA-tape produces per-cycle files named
caseid.clm2.da_bef.YYYY-MM-DD-SSSSS.ncorcaseid.clm2.da_aft.YYYY-MM-DD-SSSSS.nc.