Los paisajes del agua en la cuenca del río Baker: bases conceptuales para su valoracion integral

Muñoz, María Dolores; Pérez, Leonel; Sanhueza, Rodrigo; Urrutia, Roberto; Rovira, Adriano

doi:10.4067/s0718-34022006000200002

Cited by 12 publications

(16 citation statements)

References 2 publications

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“…However, modelled debris flows and floods from hazardous lakes reached forestry land, a planned dam, and transportation routes. Damage to access routes by GLOFs can increase accessibility problems faced by Patagonian settlements (Muñoz et al, 2006). These 28 lakes, based on the results of this study, are more susceptible to failure than other lakes.…”

Section: Outburst Susceptibility Classificationmentioning

confidence: 72%

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Moraine-dammed lake failures in Patagonia and assessment of outburst susceptibility in the Baker Basin

Anacona

Norton

Mackintosh

2014

Nat. Hazards Earth Syst. Sci.

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Abstract. Glacier retreat since the Little Ice Age has resulted in the development or expansion of hundreds of glacial lakes in Patagonia. Some of these lakes have produced large ( ≥ 10 6 m 3 ) Glacial Lake Outburst Floods (GLOFs) damaging inhabited areas. GLOF hazard studies in Patagonia have been mainly based on the analysis of short-term series (≤ 50 years) of flood data and until now no attempt has been made to identify the relative susceptibility of lakes to failure. Power schemes and associated infrastructure are planned for Patagonian basins that have historically been affected by GLOFs, and we now require a thorough understanding of the characteristics of dangerous lakes in order to assist with hazard assessment and planning. In this paper, the conditioning factors of 16 outbursts from moraine-dammed lakes in Patagonia were analysed. These data were used to develop a classification scheme designed to assess outburst susceptibility, based on image classification techniques, flow routine algorithms and the Analytical Hierarchy Process. This scheme was applied to the Baker Basin, Chile, where at least seven moraine-dammed lakes have failed in historic time. We identified 386 moraine-dammed lakes in the Baker Basin of which 28 were classified with high or very high outburst susceptibility. Commonly, lakes with high outburst susceptibility are in contact with glaciers and have moderate (> 8 • ) to steep (> 15 • ) dam outlet slopes, akin to failed lakes in Patagonia. The proposed classification scheme is suitable for first-order GLOF hazard assessments in this region. However, rapidly changing glaciers in Patagonia make detailed analysis and monitoring of hazardous lakes and glaciated areas upstream from inhabited areas or critical infrastructure necessary, in order to better prepare for hazards emerging from an evolving cryosphere.

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Section: Outburst Susceptibility Classificationmentioning

confidence: 72%

“…The Baker Basin is sparsely populated, mainly by low-density rural settlements. The number of tourists that visit the region is low (Muñoz et al, 2006). The basin hosts pristine rainforest, lakes and glaciers.…”

Section: Settingmentioning

confidence: 99%

Moraine-dammed lake failures in Patagonia and assessment of outburst susceptibility in the Baker Basin

Anacona

Norton

Mackintosh

2014

Nat. Hazards Earth Syst. Sci.

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“…Se utilizaron componentes visuales como color, escala y dimensión, equivalen- Figura N° 2 Escenarios de expansión física del área urbana del municipio de Querétaro, 1950de Querétaro, -2010 tes al contraste visual, dominancia visual y extensión de la escena (Smardon et al, 1986;Briceño et al, 2011). De forma específi ca, se emplearon trabajos que ayudaron a definir, caracterizar, describir y valorar variables ambientales inéditas para el AUMQ; el grupo temático del agua fue construido con aportes de Montoya et al (2003), Arriaza et al (2003), Lyions et al (1995) y Muñoz et al (2006). En la temática del suelo se destacan los aportes de Chung et al (2012) El proceso de obtención de información para generar el ICAU resultó del levantamiento de cuestionarios.…”

Section: Segunda Fase Elaboración Del íNdice De Calidad Ambiental Urunclassified

Valoración visual de la calidad ambiental del área urbana de Querétaro, México: la compleja sencillez de valorar el entorno urbano

Guerrero

2015

Rev. geogr. Norte Gd.

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RESUMENEn diversos espacios urbanos latinoamericanos la evaluación de la calidad ambiental es costosa y los resultados son poco claros para la mayoría de las personas. De tal forma, se plantea el análisis de la calidad ambiental del área urbana del municipio de Querétaro, México (AUMQ), a partir de la propuesta de un índice de calidad ambiental urbana (ICAU) que parte de la generación de variables ambientales defi nidas mediante valoración visual del agua, aire y suelo en unidades censales. Se indaga la presencia de clústers espaciales que acentúan el deterioro de la calidad ambiental urbana (CAU). Los resultados mostraron que la CAU disminuye conforme los clústers se alejan del centro urbano, a la vez que las zonas prioritarias se asocian con las variables de suelo y aire. Se concluye con 27 variables ambientales inéditas para el AUMQ, los productos son actualizables y la metodología puede ser replicada en otros espacios urbanos.Palabras clave: Calidad ambiental, Valoración visual, Área urbana, Clúster espacial. ABSTRACTIn several Latin American urban spaces, assessing environmental quality is costly and the results are unclear to most people. Given this, we performed an analysis of the environmental quality of the urban area of Querétaro, México (UAMQ or in spanish AUMQ). To this end, we developed an urban environmental quality index (UEQI or in spanish ICAU) that is based on a visual assessment, along census tracts, of the following environmental variables: water, air and soil. We investigated the presence of spatial clusters that accentuate the deterioration of urban environmental quality (UEQ or CAU in Spanish). Our results showed that the UEQ decreased in clusters as you move away from the urban center, while the priority areas are associated with the variables soil and air. We also present 27 unreleased environmental variables for AUMQ, whose results and methodology could be replicated for other urban spaces.

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“…Además, según las intervenciones humanas de un espacio geográfi co se distinguen categorías como Earthscapes (GALOFARO, 2007), paisaje natural, paisaje cultural, paisaje urbano, paisaje industrial, etc. (MUNOZ, 2006).…”

Section: Figura 1 -El Concepto De Paisaje Culturalunclassified

Paisaje (S) Cultural (Es) E Historia (S) Cultural (Es): Hacia Uma Construcción Interdisciplinaria en Las Ciencias Sociales Actuales.

Ojeda¹

2013

PublicatioCi.Soc.

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RESUMENLos paisajes son espacios percibidos íntegramente por los seres humanos desde una gran cantidad de perspectivas: económicas, políticas, sociales, culturales, históricas, etc. Son más que una simple conjunción de procesos sociales, económicos y medioambientales: es -sobretodo -una construcción histórica, y por tanto, tiene una historia social y cultural, susceptible de ser analizada y evaluada. Es en ese sentido que se entrelazan ambas disciplinas -paisajes culturales e historias culturales -que comparten muchas semejanzas, especialmente en su contemporaneidad y la falta de investigación de parte de las entidades sociales y académicas, debido principalmente a que son consideradas en muchos sectores académicos, como no rentables para el actual sistema económico.Palabras clave: Paisajes culturales. Historias culturales. Interdisciplinariedad. Construcción histórica. Análisis de paisajes. RESUMOAs paisagens são espaços totalmente percebidos pelos seres humanos a partir de uma série de perspectivas: econômico, político, social, cultural, histórico, etc. Eles são mais do que apenas uma combinação de fatores sociais, econômicos e ambientais: é -acima de tudo -um edifício histórico, e, portanto, tem uma história social e cultural, o que pode ser analisada e avaliada. É neste sentido que se entrelaçam ambas as disciplinas -paisagens culturais e histórias culturaiscompartilhando muitas semelhanças, especialmente na contemporaneidade com falta de investigação por entidades sociais e acadêmicas, principalmente porque são considerados em muitos setores acadêmicos como não rentável para o atual sistema econômico.Palavras-chave: Paisagens culturais. Históricos culturais. Interdisciplinaridade. Construção histórica. Análise de paisagens.

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Los paisajes del agua en la cuenca del río Baker: bases conceptuales para su valoracion integral

Cited by 12 publications

References 2 publications

Moraine-dammed lake failures in Patagonia and assessment of outburst susceptibility in the Baker Basin

Moraine-dammed lake failures in Patagonia and assessment of outburst susceptibility in the Baker Basin

Valoración visual de la calidad ambiental del área urbana de Querétaro, México: la compleja sencillez de valorar el entorno urbano

Paisaje (S) Cultural (Es) E Historia (S) Cultural (Es): Hacia Uma Construcción Interdisciplinaria en Las Ciencias Sociales Actuales.

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