{"id":18839,"date":"2002-06-09T00:00:00","date_gmt":"2002-06-09T00:00:00","guid":{"rendered":"https:\/\/www.deberes.net\/tesis\/sin-categoria\/analisis-espacio-temporal-de-la-desertificacion-usando-los-sensores-noaa-avhrr-y-landsat-tm\/"},"modified":"2002-06-09T00:00:00","modified_gmt":"2002-06-09T00:00:00","slug":"analisis-espacio-temporal-de-la-desertificacion-usando-los-sensores-noaa-avhrr-y-landsat-tm","status":"publish","type":"post","link":"https:\/\/www.deberes.net\/tesis\/ciencias-de-la-tierra-y-del-espacio\/analisis-espacio-temporal-de-la-desertificacion-usando-los-sensores-noaa-avhrr-y-landsat-tm\/","title":{"rendered":"An\u00e1lisis espacio-temporal de la desertificaci\u00f3n usando los sensores noaa-avhrr y landsat-tm"},"content":{"rendered":"<h2>Tesis doctoral de <strong> Pedro Alberto Hern\u00e1ndez Leal <\/strong><\/h2>\n<p>La falta de control sobre la explotaci\u00f3n de los bosques degenera habitualmente en procesos de degradaci\u00f3n del suelo como el estudiado en esta memoria, englobado dentro del t\u00e9rmino desertificaci\u00f3n. La zona objeto de nuestro an\u00e1lisis ha sido la isla de la espa\u00f1ola, una isla tropical, en la que en su porci\u00f3n oeste, la ocupada por hait\u00ed, el proceso de deforestaci\u00f3n es realmente preocupante.  se realiza un an\u00e1lisis del problema mediante el uso de los sensores noaa-avhrr y landsat-tm. El uso de datos de \u00edndices de vegetaci\u00f3n obtenidos de im\u00e1genes del proyecto pathfinder avhrr land (pal-8 km), con una serie temporal especialmente amplia, que abarca hasta 17 a\u00f1os, permite mostrar de forma clara las diferencias en las cubiertas forestales de hait\u00ed y rep\u00fablica dominicana, que de no ser por la acci\u00f3n del hombre deber\u00edan tener comportamientos similares en cuanto a evoluci\u00f3n y densidad.  por su parte, la utilizaci\u00f3n de las im\u00e1genes landsat-tm, ha permitido realizar un detallado estudio sobre la zona fronteriza entre ambos pa\u00edses, demostrando gracias a su alta resoluci\u00f3n espacial, de forma clara y evidente la naturaleza antropog\u00e9nica y dimensi\u00f3n del problema.  la combinaci\u00f3n de la temperatura del terreno (lst) e \u00edndices de vegetaci\u00f3n en el estudio de la din\u00e1mica de las superficies vegetales, permite aportar informaci\u00f3n complementaria a la que los simples \u00edndices podr\u00edan darnos. para ello se ha desarrollado un algoritmo de tipo split-window regional que permite obtener la temperatura del terreno a partir de los canales t\u00e9rmicos del sensor avhrr con datos obtenidos del global land 1 km avhrr project.  el uso de informaci\u00f3n de distintos sensores remotos, la sinergia de la temperatura e \u00edndices de vegetaci\u00f3n de las superficies en estudio, adem\u00e1s de medidas de campo en zonas escogidas ex profeso, nos ha permitido dar una visi\u00f3n global del grave problema de deforestaci\u00f3n existente en la isla de la espa\u00f1ola y de su<\/p>\n<p>&nbsp;<\/p>\n<h3>Datos acad\u00e9micos de la tesis doctoral \u00ab<strong>An\u00e1lisis espacio-temporal de la desertificaci\u00f3n usando los sensores noaa-avhrr y landsat-tm<\/strong>\u00ab<\/h3>\n<ul>\n<li><strong>T\u00edtulo de la tesis:<\/strong>\u00a0 An\u00e1lisis espacio-temporal de la desertificaci\u00f3n usando los sensores noaa-avhrr y landsat-tm <\/li>\n<li><strong>Autor:<\/strong>\u00a0 Pedro Alberto Hern\u00e1ndez Leal <\/li>\n<li><strong>Universidad:<\/strong>\u00a0 La laguna<\/li>\n<li><strong>Fecha de lectura de la tesis:<\/strong>\u00a0 06\/09\/2002<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<h3>Direcci\u00f3n y tribunal<\/h3>\n<ul>\n<li><strong>Director de la tesis<\/strong>\n<ul>\n<li>Manuel Arbelo P\u00e9rez<\/li>\n<\/ul>\n<\/li>\n<li><strong>Tribunal<\/strong>\n<ul>\n<li>Presidente del tribunal: pedro Sancho d\u00edaz <\/li>\n<li> Exp\u00f3sito gonz\u00e1lez Francisco Javier (vocal)<\/li>\n<li>Antonio D\u00edaz hern\u00e1ndez (vocal)<\/li>\n<li>  (vocal)<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Tesis doctoral de Pedro Alberto Hern\u00e1ndez Leal La falta de control sobre la explotaci\u00f3n de los bosques degenera habitualmente en 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