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curiosoperoinutil.com :: Ver Tema - ¿Cómo funciona un río?
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¿Cómo funciona un río?
https://curiosoperoinutil.com/forum/viewtopic.php?f=2&t=7071
Página 1 de 1

Autor:  ElHombrePancho [ Mar 09 Feb 2010, 04:48 ]
Asunto:  ¿Cómo funciona un río?


Autor:  javier de prado [ Mar 09 Feb 2010, 06:15 ]
Asunto: 


Autor:  ElHombrePancho [ Mar 09 Feb 2010, 06:41 ]
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Autor:  Adama [ Mar 09 Feb 2010, 12:30 ]
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Autor:  Carlos [ Mar 09 Feb 2010, 23:38 ]
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Autor:  Davidmh [ Mar 09 Feb 2010, 23:41 ]
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Autor:  Gangrolf [ Mar 09 Feb 2010, 23:58 ]
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Autor:  Udri [ Mié 10 Feb 2010, 02:40 ]
Asunto: 

Voy a intentar explicarlo sencillito, sin muchos detalles:

Para ver por qué no se seca o sí se seca un río hay que partir de la cuenca en la que está englobado.

En una cuenca hay una serie de ganancias, en forma de precipitaciones, deshielo y cesiones de otras cuencas, y una serie de pérdidas, en forma de salidas al mar/otras cuencas y evaporación. Si restamos las entradas menos las salidas, nos queda el balance neto de la cuenca. Ese balance es la cantidad que almacenamos (si ha entrado pero, no se ha ido... es porque se ha quedado). El almacenamiento puede ser en forma de aguas superficiales (lagos, hoy en día pantanos, nieve....) o de aguas subterráneas. El almacenamiento subterráneo se almacena en lo que llamamos "acuíferos". Un acuífero es de tipo libre si la primera capa, donde se almacena el agua, es permeable y debajo tiene una impermeable, y es confinado si el acuífero está enterrado entre 2 capas impermeables.

El balance hídrico de una cuenca podemos hacerlo para un año, o mejor aún, para una serie temporal, lo que nos permitiría ver el balance total en un tiempo, lo cual permite ver si un río se va a secar. Cuando tenemos un año que no llueve apenas, ese año el balance entre entradas y salidas puede ser negativo, pero seguimos teniendo el agua almacenada en acuíferos, los cuales pueden ceder el agua a los ríos. Este agua que se cede se va perdiendo y si el año siguiente el balance vuelve a ser negativo, y al siguiente... llega un momento que debido a la no-recarga de los acuíferos, finalmente los ríos dejen de funcionar como tal.

Autor:  ElHombrePancho [ Jue 11 Feb 2010, 00:28 ]
Asunto: 

Está bastante claro, gracias! :D

Autor:  Floc [ Jue 11 Feb 2010, 02:19 ]
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Autor:  Udri [ Vie 12 Feb 2010, 10:07 ]
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Autor:  Pochhammer [ Vie 12 Feb 2010, 10:57 ]
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Autor:  Gangrolf [ Vie 12 Feb 2010, 10:59 ]
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Autor:  Udri [ Vie 12 Feb 2010, 11:10 ]
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Autor:  Adama [ Vie 12 Feb 2010, 11:16 ]
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Autor:  Davidmh [ Vie 12 Feb 2010, 12:41 ]
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Autor:  javier de prado [ Vie 12 Feb 2010, 12:58 ]
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Yo si veo una muy bestia la bella y ya está.

EDITO: Festival del humor festival del humoooor :oops:

Autor:  Floc [ Vie 12 Feb 2010, 13:00 ]
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Autor:  Adama [ Vie 12 Feb 2010, 13:08 ]
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Autor:  Davidmh [ Vie 12 Feb 2010, 13:11 ]
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Autor:  Adama [ Vie 12 Feb 2010, 13:14 ]
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Autor:  javier de prado [ Vie 12 Feb 2010, 13:15 ]
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Autor:  Floc [ Vie 12 Feb 2010, 21:35 ]
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Autor:  el gato cuantico [ Vie 12 Feb 2010, 22:38 ]
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Autor:  javier de prado [ Sab 13 Feb 2010, 03:53 ]
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Autor:  Udri [ Sab 13 Feb 2010, 22:11 ]
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Autor:  el gato cuantico [ Sab 13 Feb 2010, 23:23 ]
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Autor:  mariomario [ Dom 14 Feb 2010, 00:02 ]
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Autor:  Pipistrellum [ Mar 03 Sep 2013, 23:45 ]
Asunto:  Re: ¿Cómo funciona un río?


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