Statements (21)
| Predicate | Object |
|---|---|
| gptkbp:instanceOf |
data assimilation method
|
| gptkbp:advantage |
uses time-evolving observations
|
| gptkbp:category |
variational assimilation
|
| gptkbp:developedBy |
1980s
|
| gptkbp:dimensions |
four-dimensional (space and time)
|
| gptkbp:fullName |
Four-Dimensional Variational Data Assimilation
|
| https://www.w3.org/2000/01/rdf-schema#label |
4DVar
|
| gptkbp:input |
observational data
numerical model |
| gptkbp:limitation |
computationally expensive
|
| gptkbp:output |
analysis state
|
| gptkbp:purpose |
to optimally combine model and observations
|
| gptkbp:reduces |
cost function
|
| gptkbp:relatedTo |
3DVar
EnKF |
| gptkbp:requires |
adjoint model
|
| gptkbp:usedIn |
climate modeling
numerical weather prediction oceanography |
| gptkbp:bfsParent |
gptkb:hybrid_4DEnVar
|
| gptkbp:bfsLayer |
7
|