Abstract

This paper aims to contribute to the prevention of natural disasters and generate a complement to other similar studies. The Popocatepetl volcano has showed significant and constant activity since 1994. The Colorada and Quimichule canyons are located within its geologic structure; due to their topographic features, ejected volcanic material and torrential rains in the past recent years, they put nearby communities at risk. This work presents a geostatistical analysis to obtain the gravity acceleration, slope by the distance-elevation relation, height-gravity and the fluid force on the canyons. The conversion of UTM to geographical coordinates was made with the use of the program Traninv applying the ITRF2008 epoch 2010.0 Datum and the 14 Zone; the local gravity was calculated with the use of International Organization of Legal Metrology (OIML) and the statistical analysis was obtained with the use of the Geostatistical Environmental Assessment. The structural modeling was performed using Surfer, and the spending and force were calculated using hydrological models. The correlation analysis concluded that Quimichule has the greatest gravity and that it would transport lahars faster. Mapping, geomorphological and statistical techniques and models were applied in accordance with the study to obtain the results presented here.

Highlights

  • The Popocatépetl volcano is located at 19 ̊17'N latitude - 98 ̊38'W longitude from the Greenwich Meridian

  • This paper presents the results obtained through the processing of the cartographic data and by applying the Geoeas and Surfer programs to calculate the relation between the acceleration of local gravity, height, slope, waste and force of a substance that runs over a profile of the Colorada and Quimichule canyons

  • Slope, force and waste are lower in the Colorada canyon, results validating the methods applied

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Summary

Introduction

The Popocatépetl volcano is located at 19 ̊17'N latitude - 98 ̊38'W longitude from the Greenwich Meridian. Atypical torrential rains caused by climate change, existing melting glaciers and topography, favor landslides of mudflows of volcanic ash in the canyons such as Colorada and Quimichule These are directly related to the gravity, slope, height and expense, which might put the surrounding communities at risk. Studies on canyon stability have been carried out applying geotechnical methods and finite elements to determine tensions, deformations and shear strength [2] These methods are based on mathematical models that provide an approach to the solution of the problem; they do not take into account geodetic methods to determine the slope and gravity. Geodetic approximate methods provide more realistic results, as the data introduced to the computer programs are obtained from readings on topographic maps with a good approach The location of this volcano and its activity in recent years represent a risk structure to the nearby communities (Figure 1). It is important to know the possible scenarios that would arise in the case of a major eruption

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