# analysis Section

This section configures **harmonic analysis** settings in T-UGOm, including **tidal spectrum**, **admittance methods**, and **spectral solver configurations**.

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 | **Parameter** | **Description** |
 |---------------|----------------|
 | `OnOffFlag` | Flag to enable/disable harmonic analysis (`TRUE`, `FALSE`). |
 | `list_file` | File containing the list of tidal waves for analysis. |
 | `auto_completion` | Flag to enable/disable auto-completion of tidal spectrum (`TRUE`, `FALSE`). |
 | `harmonic_start` | Time after which analysis starts (default: `2*#MODEL.$spinup./3600/24.0`, in days). |
 | `sample_interval` | Sampling interval for analysis (default: `1800 s`). |
 | `compute_interval` | Interval for computing harmonic analysis (default: `365 days`). |
 | `rayleigh_factor` | Rayleigh criterion threshold (default: `0.5`, dimensionless). |
 | `admittance_method` | Method for admittance (`NONE`, `LINEAR`, `SPLINE`). |
 | `strategy` | Strategy for harmonic analysis (`FULL`, `REINITIALISE`, `SEQUENTIAL`). |
 | `sequential_recycle` | Flag to recycle sequential solutions (`MANAGED`, `FALSE`, `TRUE`). |
 | `sequential_archive_level` | Archive level for sequential solutions (`MINIMAL`, `STANDARD`). |
 | `LGP1ArchiveFlag` | Flag to create a LGP1xLGP1 ASCII archive (`TRUE`, `FALSE`). |
 | `ASCIIArchiveFlag` | Flag to create an ASCII UG archive (`TRUE`, `FALSE`). |
 | `NETCDFArchiveFlag` | Flag to create a NetCDF UG archive (`TRUE`, `FALSE`). |
 | `zone` | Definition of structured grid (`AUTO`, `FILE`, `SYMPHO`). |
 | `SGFlag` | Flag to enable/disable structured grid archive (`TRUE`, `FALSE`). |
 | `surface_elevation` | Flag to include surface elevation in analysis (`TRUE`, `FALSE`). |
 | `horizontal_currents` | Flag to include horizontal currents in analysis (`TRUE`, `FALSE`). |
 | `LSA_potential` | Flag to include LSA potential in analysis (`TRUE`, `FALSE`). |