J. J. Hernández-Gómez

Instituto Politécnico Nacional

Author Statistics

Papers

Citation

H-Index

i-10 index

Research Trends

Author Order

Document Type

Co-Authors

Carlos Couder-Castañeda

Instituto Politécnico Nacional

Mauricio Gabriel Orozco-del-Castillo

Instituto Tecnológico de Mérida

C. Ortiz‐Alemán

Université Toulouse III - Paul Sabatier

Clemente Rodríguez-Cuevas

Autonomous University of San Luis Potosí

I. Medina

Instituto Politécnico Nacional

Arturo Iglesias-Mendoza

Universidad Nacional Autónoma de México

Maricarmen Reyes-Olvera

Mexican Institute of Petroleum

Alfredo Trujillo‐Alcántara

Mexican Institute of Petroleum

G. A. Yáñez-Casas

Instituto Politécnico Nacional

Diego Padilla-Pérez

Instituto Politécnico Nacional

Cooperative Institutions

Instituto Politécnico Nacional

Mexican Institute of Petroleum

Universidad Nacional Autónoma de México

Watershed

Center for Research and Advanced Studies of the National Polytechnic Institute

Autonomous University of San Luis Potosí

American Petroleum Institute

Tecnológico de Monterrey

Instituto Tecnológico de Mérida

Centre National de la Recherche Scientifique

Author Statistics

Papers

Citation

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i-10 index

Research Field

Estimation of source, path and site effects at MASE array stations: a comprehensive study

Geofísica Internacional (2017)

C. Ortiz‐Alemán Maricarmen Reyes-Olvera Arturo Iglesias-Mendoza Mauricio Gabriel Orozco-del-Castillo J. J. Hernández-Gómez

A parameterized source and path effects inversion method based on the use of global optimization techniques is presented. We applied this method on velocity data from various seismic events collected between August, 2005 and April, 2007 in Mexico by the regional MesoAmerican Subduction Experiment (MASE) seismic network and other stations from the permanent Mexican Seismological Survey Network (SSN). The source, path and site parameters corresponding to the S wave amplitude spectra of 219 velocity seismic records (162 from MASE and 57 from SSN) were estimated by means of a generalized inversion approach. The simultaneously inverted parameters from the records of 55 stations shows a significant agreement between the observed and calculated spectra, which supports their realiability. Nakamura’s method was used to compute an initial guess for the generalized inversion. Comparisons between Nakamura’s technique and parameterized source and path effects inversion by using simulated annealing method were also established. Finally, a frecuency dependent attenuation relationship for the study area was computed by using a genetic algorithm inversion approach.

Inverse transform sampling

10.22201/igeof.00167169p.2017.56.1.1748

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Citations (3)

Remote sensing of gravity: feasibility of low orbit local gravimetry with nanosatellites

J. J. Hernández-Gómez Carlos Couder-Castañeda Jesús Irán Grageda-Arellano J.C. Ortiz Aleman Arturo Solís-Santomé

Radiometry of earth's gravity (gravity gradiometry) and gravimetry have become key tools to perform reconstructions of geological strata in the upper earth's crumble. In several locations, it is being intensely used to locate unknown oil reservoirs by determining the gravity anomalies produced by salt bodies. Nevertheless, in most cases, gradiometric or gravimetric data are obtained by ships or airplanes, both of which are very expensive methods of indirect geophysical exploration. In this paper we propose the possibility to perform gravimetry from a low orbit nanosatellite mission (CubeSat), which might be cheaper than traditional methods. We show that mathematically, it is possible to detect and reconstruct gravitational anomalies with an accuracy similar to that of data taken by airplanes flying up to 10 km above sea level. We discuss the ability of the algorithm to distinguish gravitational anomalies as a function of different orbital altitudes, showing the feasibility of performing satellite gravimetry which provides a first insight of regions of potential interest, so to make further geophysical explorations at sea level just in regions of interest. This method seems to constitute a cheaper alternative than performing the gravimetry on airplanes, particularly in greater extensions of territory.

Gravimetry

Orbit (dynamics)

10.1109/cncg.2016.7985084

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Citations (0)

Application of Riemannian Seismic Ray Path Tracing in Salt Dome Prospecting

Applied Sciences (2024)

Gabriela Yáñez J. J. Hernández-Gómez Alfredo Trujillo‐Alcántara Mauricio Gabriel Orozco-del-Castillo

Within the geophysical exploration utilising seismic methods, it is well known that if the explored distances are much greater than the wavelength of the seismic waves with which the exploration is carried out, the ray approach of the wave theory can be used. In this way, when the rays travel through an inhomogeneous medium, they follow curved trajectories, which is imperative to determine the geological features that produce reflection and refraction phenomena. In this paper, a simple algorithm for the calculation of the trajectory of a seismic beam through an inhomogeneous stratum is presented. For this, the construction of a pseudo-Riemannian metric is required from the function of P-wave velocities of the geological stratum. Thus, the problem is inverted because instead of finding the curved trajectory of the seismic beam in a background with a Euclidean metric, it is proposed that the beam follows a geodesic of a curved space-time specific to each stratum, becoming a simple and automatic process using the differential geometry apparatus. For the reader to gain insight into this tool, different geological setups from idealised ones up to a salt dome are presented.

Prospecting

Salt dome

Dome (geology)

Tracing

10.3390/app14135653

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Citations (0)

OpenMP Implementation of a Novel Potential-Field-Data Source-Growth-Based Inversion Approach for 3D Salt Imaging in Deepwater Gulf of Mexico

Applied Sciences (2020)

Naín Vera Carlos Couder-Castañeda J. J. Hernández-Gómez Alfredo Trujillo‐Alcántara Mauricio Gabriel Orozco-del-Castillo

Potential-field-data imaging of complex geological features in deepwater salt-tectonic regions in the Gulf of Mexico remains an open active research field. There is still a lack of resolution in seismic imaging methods below and in the surroundings of allochthonous salt bodies. In this work, we present a novel three-dimensional potential-field-data simultaneous inversion method for imaging of salt features. This new approach incorporates a growth algorithm for source estimation, which progressively recovers geological structures by exploring a constrained parameter space; restrictions are posed from a priori geological knowledge of the study area. The algorithm is tested with synthetic data corresponding to a real complex salt-tectonic geological setting commonly found in exploration areas of deepwater Gulf of Mexico. Due to the huge amount of data involved in three-dimensional inversion of potential field data, the use of parallel computing techniques becomes mandatory. In this sense, to alleviate computational burden, an easy to implement parallelization strategy for the inversion scheme through OpenMP directives is presented. The methodology was applied to invert and integrate gravity, magnetic and full tensor gradient data of the study area.

Potential field

10.3390/app10144798

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Citations (2)

Estimation of source; path and site effects at MASE array stations: a comprehensive study

Geofísica Internacional (2017)

C. Ortiz‐Alemán Maricarmen Reyes-Olvera Arturo Iglesias-Mendoza Mauricio Gabriel Orozco-del-Castillo J. J. Hernández-Gómez

Inverse transform sampling

10.19155/geofint.2017.056.1.6

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Citations (2)

Assessment of the Reduction of the Icesnow Coverage at the TransMexican Volcanic Belt Through Empirical Mode Decomposition on Satellite Imagery

Lecture notes in geoinformation and cartography (2022)

Alfredo Sánchez-Martínez Emiliano Yahel Ruíz-Oropeza Mauricio Gabriel Orozco-del-Castillo J. J. Hernández-Gómez G. A. Yáñez-Casas

10.1007/978-3-030-98096-2_10

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Citations (1)

Numerical Modelling of Heavy Metal Dynamics in a River-Lagoon System

Mathematical Problems in Engineering (2019)

Franklin Torres-Bejarano Carlos Couder-Castañeda Hermilo Ramírez-León J. J. Hernández-Gómez Clemente Rodríguez-Cuevas

This paper describes the development of a two‐dimensional water quality model that solves hydrodynamic equations tied to transport equations with reactions mechanisms inherent in the processes. This enables us to perform an accurate assessment of the pollution in a coastal ecosystem. The model was developed with data drawn from the ecosystem found in Mexico’s southeast state of Tabasco. The coastal ecosystem consists of the interaction of El Yucateco lagoon with Chicozapote and Tonalá rivers that connect the lagoon with the Gulf of Mexico. The results of pollutants transport simulation in the coastal ecosystem are presented, focusing on toxic parameters for two hydrodynamic scenarios: wet and dry seasons. As it is of interest in the zone, the transport of four metals is studied: Cadmium, Chromium, Nickel, and Lead. In order to address these objectives, a self‐posed mathematical problem is solved numerically, which is based on the measured data. The performed simulations show how to characterise metals transport with an acceptable accuracy, agreeing well with measured data in total concentrations in four control points along the water body. Although for the accurate implementation of the hydrodynamic‐based water quality model herein presented boundary (geometry, tides, wind, etc.) and initial (concentrations measurements) conditions are required, it poses an excellent option when the distribution of solutes with high accuracy is required, easing environmental, economic, and social management of coastal ecosystems. It ought to be remarked that this constitutes a robust differential equation‐based water quality model for the transport of heavy metals. Models with these characteristics are not common to be found elsewhere.

Ocean chemistry

10.1155/2019/8485031

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Citations (11)

Pattern Recognition Applied to Attenuation of Multiples in Subsalt Imaging

Pure and Applied Geophysics (2019)

C. Ortiz‐Alemán J. Abreu-Torres Mauricio Gabriel Orozco-del-Castillo J. J. Hernández-Gómez

Multiple

Synthetic data

10.1007/s00024-019-02135-1

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Citations (4)

Hydrodynamic-Based Numerical Assessment of Flood Risk of Tamuín City, Mexico, by Tampaón River: A Forecast Considering Climate Change

Water (2019)

Clemente Rodríguez-Cuevas Hermann Rocha-Escalante Carlos Couder-Castañeda I. Medina J. J. Hernández-Gómez

Climate change has unchained several natural extreme phenomena, including a major frequency and intensity of flooding episodes. From these, the ones of greatest importance are those which endanger human settlements as well as socioeconomic activities. This is the case of Tamuín city, settled in the shore of Tampaón River, in Mexico. In this work, we performed a detailed numerical modelling of the hydrodynamics of the zone, considering in situ topographic and bathymetric data as well as hydrodynamic parameters. Severe rainfall scenarios were simulated in order to determine the zones which are prone to flooding, as well as the potential periods of time between the beginning of the rainfall up to the flooding, considering the potential effects of climate change in the precipitation rate. The outcome of this research will help local governments undertake preventive actions to reinforce the identified risky zones, thus providing an adequate protection of rural and urban zones, as well as their inhabitants and their economical activities from current and future floods, considering potential climate change effects.

Human settlement

Coastal flood

Natural hazard

10.3390/w11091867

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Citations (4)

Hydrodynamical Assessment of the Recent Droughts at Gallinas River in San Luis Potosí México and Its Impact on the Waterfall Tamul

Water (2022)

Clemente Rodríguez-Cuevas Arturo Hernández‐Antonio Carlos Couder-Castañeda J. J. Hernández-Gómez Diego Padilla-Pérez

During the dry season of the years 2016–2020, the Gallinas River in San Luis Potosí State, Mexico, experienced a completeoss of its downstream flow. These events impacted the Tamul waterfall, a tourist attraction with economicosses for the region. To investigate the causes, this research focuses on identifying the flow variations in different river sections using the EFDC model under different scenarios to determine the causes of flowosses resulting in the disappearance of the waterfall. To set up the conditions, measurements of flow and speed, photogrammetry, bathymetry, and digital elevation modeling were necessary. The EFDC model was calibrated based on data acquired from measurement campaigns from 2017 to 2018. Five scenarios were established with different inflow boundary conditions: 1.5, 30, 60, and 1000 m3/s. According to the modeling results, it can be inferred that the mostikely reason for the flow variations in the river is the clandestine water extraction and the influence of the karst geomorphology of the river that would generate specific infiltrations.

Waterfall

Inflow

Elevation (ballistics)

10.3390/w14233877

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Citations (1)