Una interpretación geométrica de las funciones ortogonales empíricas
A simple geometric interpretation of Empirical Orthogonal Functions is presented for the case where the frrst two modes representa large percentage ofthe total variance (say, 90%). A geometric representation in two dimensions (aplane), permits a rapid, informative and succinct inspection of the inte...
| Autores: | , |
|---|---|
| Tipo de recurso: | artículo |
| Estado: | Versión publicada |
| Fecha de publicación: | 1983 |
| País: | México |
| Institución: | UNIVERSIDAD NACIONAL AUTÓNOMA DE MÉXICO |
| Repositorio: | Geofísica Internacional |
| Idioma: | español |
| OAI Identifier: | oai:revistagi.geofisica.unam.mx:article/823 |
| Acceso en línea: | http://revistagi.geofisica.unam.mx/index.php/RGI/article/view/823 |
| Access Level: | acceso abierto |
| Palabra clave: | Funciones ortogonales empíricas Interpretación geométrica Corrientes marinas Empirical orthogonal functions Geometric interpretation Ocean currents |
| Sumario: | A simple geometric interpretation of Empirical Orthogonal Functions is presented for the case where the frrst two modes representa large percentage ofthe total variance (say, 90%). A geometric representation in two dimensions (aplane), permits a rapid, informative and succinct inspection of the interrelation among the original variables. The relative error produced by suppressing the third mode is estimated. These concepts are applied to a series of data from oceanographic current meters at different depths. The geometric interpretation can be extended to more than two dimensions although the visualization becomes obviously more difficult. |
|---|