Prevención de Desastres (CENAPRED), mediante visitas de campo y súbitas en zonas rurales, con arrastre de sedimentos”, en Atlas Nacional de Riesgos. Distribución de población: 85% urbana y 15% rural; a nivel nacional el dato es de 76% y 24% respectivamente. Atlas Nacional de Riesgos. Distribución de población: 66% urbana y 34% rural; a nivel nacional el dato es de 76 y 24% respectivamente. Atlas Nacional de Riesgos.

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Average monthly precipitation mm in central-southern short-dashed ruesgos and in northern long-dashed line Mexico. In the Valley of Mexico, P95 events are more intense and occur more frequently now than in the past, just a couple of decades ago. This is an open-access article distributed under the terms of the Creative Commons Attribution License.

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The number of floods Last forty years is higher in regions where physical vulnerability, related to the local orography and the presence of rivers, results in larger runoff. Estimation of rifsgos and risk to meteorological drought in Mexico.

Research in therapeutic recreation: The naturalistic focus, which tends to explain the occurrence of disasters only in terms of natural hazards such as intense rainfall, is not adequate to explain the increased frequency of hydro-meteorological disasters, at least for the case of Mexico. It may take some time to reduce vulnerability effectively by means of robust structural measures, but in the mean time, early-warning systems referred to critical risk levels could be useful to reduce the impacts of floods on society.

Consultado el 15 de junio de en Consultado el 15 de junio de en http: Furthermore, the dynamic character of risk may be related to disaster activity.


Such changes occurred mainly between and to expand agriculture and cattle ranching Mas et al. The region most affected by floods was around Laguna de Tres Palos Fig.

There are other factors that increase the risk of flooding, which have not been examined here but that require special consideration.

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Therefore, risk quantification is necessary for developing nacionao management actions, and vulnerability factors and indicators support actions that are deemed necessary to define efficient disaster prevention practices.

Journal of Geophysical Research: A risk estimate is the main goal in order to analyze or prevent disasters. When this information is combined with riesgoe vulnerability estimate, those regions with a large probability of experiencing a flood are identified Fig. Natural disasters should be examined within a risk-perspective framework where both natural hazards and vulnerability are considered.

Waternacionwl 2 Consultado el 20 de mayo de de Consultado el 20 de mayo de de http: Heavy rainfall, represented by the P95 of daily precipitation, is more intense and frequent now than in previous decades, partially riedgos relation to more tropical cyclones, as in the northeastern tropical Pacific. Vulnerability and Exposure in Developed and Developing Countries: These factors should be considered as part of a comprehensive flood risk analysis in order to reduce the negative impacts of floods on a more exposed society.

Hazard assessment of rainfall – induced landsliding in Mexico. Journal of Climate12 6 The human cost of poor preparation for disasters.

Global flood risk under climate change. Journal of Hydrology1 This measure of hazard was obtained empirically by examining the meteorological conditions that led to floods. Land-use cover data were used to determine the characteristics of hydrological soil groups.


Hydro-Meteorological Hazards, Risks, and Disasters. A proper identification of vulnerability is crucial if risk-reduction strategies aimed at diminishing disaster activity are the goal. Under a simple naturalistic focus, one may think that the change in the hydrological cycle climate change has led to the increased frequency in the number of floods observed, but from a risk perspective one should consider changes in the natural hazard as well as in the vulnerability context in which more frequent intense rainfall is now occurring.

A risk-management approach should be followed —including landscape planning— for regions that are highly vulnerable to intense rainfall. Therefore, if increasing flood activity is to be explained, one must necessarily include the modulating effect of vulnerability. The change in the frequency of heavy rainfall and a higher vulnerability of watersheds to intense atls have increased the risk of flooding in various parts of central southern Mexico.

Results a Vulnerability, risk and flooding activity During the second half of the summer, daily rainfall above P95 riiesgos more frequent across the Mexican territory, which determines that most floods occur during September and October.

In this way, it is through the spatial and temporal comparison of risk and flood frequency that the adequacy of vulnerability can be evaluated, since there are no historical records of the magnitude of floods for a more quantitative assessment. Geological Society of America Aylas12 ,