Custom Query (986 matches)
Results (217 - 219 of 986)
| Ticket | Owner | Reporter | Resolution | Summary |
|---|---|---|---|---|
| #297 | Fixed | netcdf fill value for wetdry | ||
| Description |
When using the WET_DRY option, it appears that the values of zeta are being set to a netcdf fill value in regions where the land cells are dry (rmask_full = 0). This can not occur. The values of zeta need to be retained when written to a netcdf file so that users can compute the actual volume and tracer mass of the system. |
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| #298 | Fixed | Need to set critical depth (hc) for other transformations | ||
| Description |
The critical depth, hc, was not assigned when using the new vertical transformation equation and the other vertical stretching functions. This value needs to be assigned in set_scoord.F |
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| #301 | Done | Observation sensitivity for W4DPSAS and W4DVAR | ||
| Description |
Two new weak constraint, 4DVar data assimilation algorithms have been developed to compute the sensitivity of the assimilation system (W4DPSAS and W4DVAR) to each observations. They measure the degree to which each observation contributes to the uncertainty of the estimate. This analysis can be used to determine the type of measurements that need to be made, where to observe, and when. These are very complex algorithms. We will provide guidelines for their usage in the future. They are activated using either W4DPSAS_SENSITIVITY and W4DVAR_SENSITIVITY. These algorithms can be only used for a single outer loop. They include the regular data assimilation algorithm (W4DPSAS or W4DVAR) plus the adjoint of the system. More than one outer loop will require the tangent linear of the tangent linear model which we don't have. Many thanks to Andy Moore for helping us code and test these algorithms. |
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