logo de institución
Revista de Geografía Norte Grande
Revista Activa *
ISSN: 0379-8682 ISSN electrónico: 0718-3402
Geografía Social
Pontificia Universidad Católica de Chile

Normas para autores

Página de la revista
Sitio web de la institución editora

Redalyc 3.0 versión beta.
La versión estable de Redalyc 3.0 se libera en febrero de 2017. En la actualidad, se muestran los resultados de la marcación de artículos científicos mediante la herramienta gratuita Marcalyc, liberada en su primera versión el 1ro de septiembre de 2016 y que está pensada como un elemento central en la construcción y consolidación de un modelo de AA sustentable para Iberoamérica.
Cristián Henríquez
Crea tu propia página
en: Given the signi ficant differences in spatial and temporal distribution of rainfall, prolonged periods of water stress, problematic soils and absence of perennial ri- vers, the Northeastern interior is the region most vulnerable to climate change in Brazil. Based on analysis of climate data, this study aims to identify trends in sea surface temperatures in the North Atlantic, South Atlantic, East Paci fi c and Central Paci fi c Oceans and their relation with the temporal variability in precipitation in Pernambuco in recent periods. Three methods were used to achieve the proposed objective. The Rain Anomaly Index was used as evidence of the relationship bet- ween the oceans and rainfall in NEB. Research trends in TSM’s the Mann-Kendall method. To demonstrate changes in current precipitation, climate indices sugges- ted by the Expert Team on Detection, Monitoring and Climate Change Indices were used. The climate change indices indicated that changes in rainfall patterns have been occurring, with a tendency toward an increase in the volume of rain (with the exception of the eastern coast) and more concentrated seasonal distribu- tions. Statistical analysis of TSM’s on the Paci fi c and Atlantic allowed us to observe that there is a warming trend and that when analyzed alone, the occurrence of positive anomalies over the eastern Paci fi c (El Niño) and negative anomalies over the South Atlantic (positive dipole), droughts are more severe, based on analysis of the rainfall anomaly index. Also based on the IAC, we concluded that when both events occur in isolation they exert in fl uence on rainfall in the region, however, when they act together this in fl uence is more pronounced, changing the behavior of the general circulation of the atmosphere meridionaly (Hadley cell) and zonally (Walker cell).>>>
Ranyére Silva Nóbrega
Crea tu propia página
Gabriela Ayane Chagas Felipe Santiago
Crea tu propia página
en: It is estimated that changes in global weather patterns and natural dynamics can cause a high incidence of extreme events, and therefore increase risk levels. In this study, we review the major climatic and hydrometeorological disasters that have affected Chile bet- ween 1984 and 2013, based on ordinances that establish catastrophe zones (Law 16.282) for natural events such as, rainstorms, drought, frost, snowstorms, fl oods, and mass move- ments, caused by extreme temperature and rainfall. Information on exposure, vulnerability and resilience is integrated into a climate risk index at the municipal level. Based on the municipal results for Chile, those areas with increased climate risks are located along the central coast. We conclude that it is necessary to consider an adaptive rather than reactive approach to risk management, especially when coping with threats due to climate change.>>>
Cristián Henríquez
Crea tu propia página
en: The city of Santiago (Chile) shows signi fi cant differences in the distribution of air temperatures within the city due to a set of explanatory factors, such as increased proportions of impermeable surfaces and a reduction in vegetation. This has in turn generated heat islands, which are accentuated and generalized in the summer nights, creating a complex and heterogeneous mosaic of urban landscapes that affect the environment and quality of life of its inhabitants. Based on networks of urban-climate information that link data from fi xed stations, mobile transects and thermal satellite imagery, we estimate signi fi cant spatial relationships that have allowed us to construct maps that help to explain the temporal and spatial variabi- lity of atmospheric temperatures, and thus to suggest measures for mitigating and adapting to the phenomena at both the macro- and meso-scale.>>>
en: The paper discusses the arguments in favor of urban green infrastructure and the provision of ecosystem services as key components of urban-ecological systems resilient to climate change. The analytical framework developed here is then applied to the riparian corridor of the Mapocho River in Santiago, in order to dis- cuss its current and potential contributions to tackling climate change. The discus- sion is based on the evaluation of three key ecosystem services: (1) cooling effects, (2) routes for non-motorized transport, and (3) fl ood mitigation. The integration of concepts of green infrastructure, ecosystem services and adaptation/mitigation of climate change, provide an appropriate framework to clarify how urban green spa- ces can contribute to address global warming and the negative effects of climate change. In Santiago, currently the main contribution of Mapocho River’s riparian corridor is to mitigate greenhouse gas emissions by acting as an important route for non-motorized transport, particularly for cycling. Currently its contribution to the reduction of atmospheric temperatures and to fl ood mitigation is limited. The development of a riparian greenway along the Mapocho River could help improve the provision of the three evaluated ecosystem services and thus constitute an im- portant connector in the green infrastructure system in Santiago to address mitiga- tion and adaptation to climate change.>>>
Alexis E. Vásquez
Crea tu propia página
en: Since the late 1980s, a new vocabulary associated with concerns about climate change has emerged. Nevertheless, this article argues that the concepts used to describe urban adaptation are a part of the history of urban planning. Conse- quently, climate change should not be seen as a new phenomenon disconnected from this past. By means of a historically contextualized conceptual discussion and a review of urban planning instruments used to address climate change in Chile, the article argues that climate change has been central to urban planning and that the emphasis on climate change is no more than a reaf fi rmation of this connection built on the concept of ‘urban risk’. It concludes that an integrated and historically contextualized approach based on urban risk should form the basis to the response within the framework of the National Climate Change Adaptation Policy (2014) in conjunction with the National Urban Development Policy (2014).>>>
Jonathan R. Barton
Crea tu propia página
Felipe Irarrázaval
Crea tu propia página
en: The Aysen Region is both a paradigmatic and paradoxical case. As an “extreme region”, it is the only region in Chile south of Coquimbo that has increased its contribution to national GDP in the past forty years. Additionally, Aysen grew by 28% compared to Magallanes, the region that experienced the most signi fi cant decrease in contribution to the national GDP (54.5%); a paradox between two Patagonian regions! This is the research question. Finding show that there is a clear pro-north and anti-south bias within the open economy model, based on the natural resource exportation sector. Furthermore, it can be con fi rmed that at a national level, while the tertiary-urban sec- tors have experienced signi fi cant growth, the “winning regions” have experienced an accentuated “re-primarization”. This establishes the basis for what can be identi fi ed as “commodity-regions”, which are more fully embedded within global markets. Aysen, with a relatively late-blooming salmon industry and a renewed mining sector, would seem to be taking on and joining this primary-export model. Behind this model are a number of factors such as free market policies, economic liberalization, tariff exemp- tions and deductions, export promotion and global insertion, in addition to correspon- ding monetary and exchange policies. Supranational organizations involved in global economic governance must also be taken into account, as the macroeconomic policies implemented at this scale affect not only countries and their national governments, but also have a differential impact on sub-national regions as well.>>>
en: This manuscript studies the dynamics of constructing boundaries and the differen- ces within the Río Negro province. We consider 1958, the year the province was established, as a point of in fl ection in the region. The article seeks to show how the spatial fragmentation of previous years continued, deepening and changing provincial divisions through the restrictions of general interests to certain regional sectors. To this end, we will analyze rarely cited sources: the provincial constitution draf- ted in 1957 and the government development plans from 1958 and 1976. We will discuss the associated hierarchical construction of regions, illustrating how spatial transformation enabled, paradoxically, the assumption of territory not only as a neutral act, but as justi fi ed under an unequal social integration, which by 1973 was beginning to arise in terms of geographical determinism, as inequalities were justi fi ed by descriptions of the landscape.>>>
en: Modern social dynamics are related to increasing hazards and risks, a situation that is crystalized in socio-environmental con fl icts that arise under different socio-spatial con- texts, representing the existing tensions among contrasting interests. One of the social dimensions reported in the literature on the governance of risks that generate socio-en- vironmental con fl icts is trust, a variable that intervention models have not been able to account for in a satisfactory manner. Based on exploratory research using an integrated design, which included 6 focus groups and 15 semi-structured interviews, we examine the impact of trust on the relationship between social actors and public and private institutions in the con fl icts over the proposed thermoelectric (Castilla) and hydroelectric (Hidroaysén) projects in Chile. The results highlight that competence and behavioral consistency (objective variables), along with compassion, integrity, a sense of justice and the compliance with promises (subjective variables) explain the relationships, ten- sions, con fl icts and con fl ict resolution in the cases analyzed.>>>
Arturo Vallejos–Romero
Crea tu propia página
Hugo Marcelo Zunino
Crea tu propia página
en: Analysis of landscape dynamics is a key input for managing historic areas. The article presents a methodological approach based on: a) re-capturing historical images, b) digital image processing, c) identi fi cation of view sheds in GIS, and d) photographic interpretation of landscape dynamics. Photographic interpretation is based on fi ve cate- gories of landscape elements: buildings, infrastructure, vegetation, bodies of water and land. Focusing on the last category, we identi fi ed the principal patterns of landscape transformation that took place in Lota between the beginning of the 20th and the be- ginning of the 21st centuries. Results indicate the effectiveness of this method in identi- fying places that were signi fi cant in the past and their transformation through time. For Lota in particular, the results also indicate that the former mining and suburban areas have been the most altered. Changes include: modi fi cations in relief, in fi lling of old bays and the urbanization of the hills.>>>
María Isabel López Meza
Crea tu propia página
Ignacio Bisbal
Crea tu propia página
en: Sedimentological, morphostratigraphical and chronological analysis of sediments has determined the geomorphological evolution of the Miranda Basin. These analyses have identi fi ed 5 terrace levels related to the Ebro river: a fl uvial level linked to the Arroyo San Miguel, 2 pediment levels and various slope deposits. Te- rrace levels T4 and T5 have been dated using Optically Stimulated Luminescence at 13 and 10 ka. Terrace levels T1, T2 and T3 were formed at 191 ka, 109 ka and 70 ka. Remnants of the Arroyo San Miguel were created during the Early Pleisto- cene. Pediment G1 dates back to 70 ka and G2 to 13 ka. Slope deposits originated during the Last Glacial Maximum. Presented evidence shows a geomorphological system mainly active during glacial stages. The Ebro river experienced fl uvial sedi- mentation phases during interglacial stages too, but with very different characteris- tics. Fluvial incision coincides with climatic transitions and pediment incision with interglacials.>>>
Ángel Soria–Jáuregui
Crea tu propia página
Sistema de Información Científica Redalyc
Red de Revistas Científicas de América Latina y el Caribe, España y Portugal
Universidad Autónoma del Estado de México
Versión 3.0 beta | 2016
Pie piepag
Versión normal |Versión básica