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En general, el seguimiento que hace el IDEAM del comportamiento hidrológico en los principales ríos del país se realiza con la información horaria en tiempo real que se recibe de las estaciones automáticas, complementadas con más de 40 estaciones hidrológicas que transmiten en las primeras horas cada mañana, los 365 días del año.<\/SPAN><\/P>

Esta red hidrológica automática del IDEAM está diseñada básicamente para cubrir algunos de los grandes ríos del país, en especial en la cuenca Magdalena-Cauca; su objetivo es contar con los elementos técnicos que permitan alertar a las poblaciones ribereñas sobre la posibilidad de inundaciones.<\/SPAN><\/P>

Además, en las cinco vertientes hidrográficas del territorio colombiano el IDEAM tiene 834 estaciones hidrológicas (389 limnimétricas y 445 limnigráficas) para suministrar datos sobre el régimen hidrológico de los cauces y cuerpos de agua principales, para hacer seguimiento al proceso de la escorrentía en el ciclo hidrológico y a los eventos extremos asociados. Algunos parámetros se observan dos veces al día, como el nivel del río y la concentración de sedimentos.<\/SPAN><\/P>

El boletín entregado muestra diferentes categorías para las alertas hidrológicas, estas son: Alerta roja \u2013 Para tomar acción, advierte a los sistemas de prevención y atención de desastres sobre la amenaza que puede ocasionar un fenómeno con efectos adversos sobre la población, el cual requiere la atención inmediata por parte de la población y de los cuerpos de atención y socorro. Se emite una alerta solo cuando la identificación de un evento extraordinario indique la probabilidad de amenaza inminente y cuando la gravedad del fenómeno implique la movilización de personas y equipos. ; Alerta Naranja \u2013 Para prepararse, indica la presencia de un fenómeno. No implica amenaza inmediata y como tanto es catalogado como un mensaje para informarse y prepararse. El aviso implica vigilancia continua ya que las condiciones son propicias para el desarrollo de in fenómeno, sin que se requiera permanecer alerta; Alerta Amarilla \u2013 Para informarse, es un mensaje oficial por el cual se difunde información. Por lo regular se refiere a los eventos observados, registrados y puede contener algunos elementos de pronóstico a manera de orientación, por lo cual no está encaminado a alertar sino a informar.<\/SPAN><\/P><\/DIV>", "copyrightText": "Instituto de Higrología, Meteorología y Estudios Ambientales - IDEAM, Esri Colombia", "editFieldsInfo": null, "ownershipBasedAccessControlForFeatures": null, "syncCanReturnChanges": false, "relationships": [], "isDataVersioned": false, "isDataArchived": false, "infoInEstimates": [ "extent", "count" ], "isDataBranchVersioned": false, "isDataReplicaTracked": false, "isCoGoEnabled": false, "supportsRollbackOnFailureParameter": true, "archivingInfo": { "supportsQueryWithHistoricMoment": false, "startArchivingMoment": -1 }, "supportsStatistics": true, "supportsExceedsLimitStatistics": true, "supportsAdvancedQueries": true, "supportsValidateSQL": true, "supportsCoordinatesQuantization": true, "supportsQuantizationEditMode": true, "supportsCalculate": true, 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