Dirección de Investigación Cartográfica, Geográfica y Espacial
BASE DE DATOS - ARTÍCULOS CIENTÍFICOS.
| TÍTULO | PALABRA CLAVE | INTRODUCCIÓN / RESUMEN | AUTOR/ES | AÑO PUBLICACIÓN | REVISTA | LINK DE PUBLICACIÓN | AREA DE CONOCIMIENTO |
|---|---|---|---|---|---|---|---|
| Aplicación de las geotecnologías dentro del análisis socioeconómico y su implicación en la capacidad de acogida del territorio. | Landscape ecology, Geographic Information System (GIS), Constructive Physical Aptitude (AFC),Receptivity Construction Capacity (CAC), Analytical hierarchy process (AHP). | The city of Esmeraldas exposes several vulnerabilities to natural disasters, health deficiencies, as well as inaccessibility to basic services and education. Therefore, it appears the need to identify the relationships between its socio-economic status and the corresponding territorial conditions. The current study aims to identify spatial relations in the territory using geo-technologies and a holistic evaluation of landscape ecology, as the starting point for a territory potentials study that includes Physical Constructive Aptitude (PCA) and Receptivity Construction Capacity (RCC). The homogeneous units are established by the information obtained in the spatial data survey in geomorphology, geopedology, coverage and land use, and socio-economic variables. These units are determined by the existing threats in the area, such as floods and landslides, in order to define the level of reciprocity regarding to the population socio-economic status of the study area. The results show that 31% of the population lives in acceptable with strong limitations areas, followed by 29% in the restricted or exclusive areas, 22% in the acceptable with limitations areas, and 17% in the acceptable areas. Therefore, most of the population lives in limited areas for construction and have low socio-economic status. | Dennys, Mosquera, Lopez; Veronica, Suango; Alejandra, Cando; Katty, Yepez; Elizabeth, Tamayo; Julio, Moreno; Theofilos, Toulkeridis. | 2022 | Springer | Link | Cartografía Temática |
| Capacity of Constructive Reception Through the Geo-Spatial Analysis of Physical Soil Variables in Ibarra, Ecuador. | Capacity of constructive reception, Geo-spatial analysis, Soils, Geomorphology, Geology, Physical suitability. | In the city of Ibarra, comprehensive scientific studies are limited to those that are analyzed in the territory from the physical point of view. Based on the problem of expansion due to population growth, this study analyzes the physical variables of the soil based on the photo-interpretation of the geoforms, which is the basic unit of analysis. This methodology is a tool from which it is possible to locate suitable areas for the expansion urban establishment. This analysis is based on the physical suitability of the place related to the preservation of the environment and the present natural characteristics (impact). Through this process categorized areas are obtained to establish or not the constructive compatibility. In the city of Ibarra, the predominant category is acceptable because it is located in the area with slight limitations for construction and null for the threat of landslides and floods, these conditions are favorable for the establishment of constructive activities. | Veronica, Suango; Dario, Diaz; Mauricio David Reyes Muñoz; Maribel, Cañar; Angelica, Zapata; Julio, Moreno; Alondra García-Villacres & Theofilos Toulkeridis | 2022 | Springer | Link | Cartografía Temática |
| Geo-technologies Applied to the Spatial Analysis of Territorial Inequalities - Case Study of Latacunga, Central Ecuador. | Territorial inequalities, Socioeconomic status, Constructive physical aptitude, Geotechnologies,Landscape ecology. | This research zonifies territorial inequalities in Latacunga (Ecuador), considered one of the cities with high global vulnerability to risks due to its geo-graphic location. Based on the information generated by the former Ecuadorian Space Institute, through the project “Generation of geospatial information at a scale of 1: 5 000 for the determination of the physical fitness of the territory and urban development through the use of geotechnologies”, taking landscape ecology as a methodological synthesis, the hypothesis of the existing spatial relationship between socioeconomic level (SES) versus constructive physical aptitude (CFA) is proposed to determine territorial inequalities. For the CFA, five categories were determined (defined by the analysis of the geomorphological characteristics -such as slope and geological factor- and edaphic -such as water table, drainage, texture and stony-), prevailing the suitable areas with severe limitations in 70% of the territory. Regarding the SES (granted by the type of housing, availability of basic services, level of education and economic activity), the medium-low status predominates with 44%, showing marked differences between the five levels obtained. From the interaction between SES and CFA, 9 homogeneous units were established that determine territorial inequalities, prevailing, in 54%, the unit with CFA with severe to extreme limitations with a low SES. Therefore, it is evident that the geospatial knowledge generated when determining the relationship between the SES and the CFA of the territory allows decision-making authorities to design policies and projects that reduce territorial inequalities, through the understanding of the relationships between housing, services, space and characteristics of the soil. | Dennys, Mosquera Lopez; Zulay, Cueva Jimenez; Irene Chalco Barahona; Julio, Moreno Izquierdo; Veronica, Suango; Julio, Moreno Izquierdo; Alodra García-Villacres; Theofilos, Toulkeridis; | 2022 | Springer | Link | Cartografía Temática |
| Correlación de NO2 mediante imágenes Sentinel-5P y mediciones in situ durante la evolución de COVID-19 y su influencia en el Distrito Metropolitano de Quito, Ecuador. | COVID19, Sentinel-5P, Dioxide Nitrogen. | Since the first outbreak of coronavirus disease (COVID-19) reported in Wuhan (China) on December 31, 2019, countries all over the world have decreed different security measures such as lockdowns and confinement, resulting in reduced levels of air pollution. The present study explores the correlation of the levels of nitrogen dioxide (NO2) measured using two different source data as Sentinel - 5P images and the on-site database of three monitoring stations belonging to the Environmental Monitoring Network in the Metropolitan District of Quito, within three periods of time during the progression of COVID-19. The result of this analysis shows an overall correlation of ninety-three percent of the levels of NO2 for both measurements in the period January to June 2020. During the lockdown and confinement measures from March to April 2020 a reduction of forty-nine percent was found, but when confinement measures were reduced within the period May to June 2020, an increase in NO2 concentration was again observed and the reduction was only thirteen percent; thus, the reduction in NO2 concentrations may be attributed partly due to the significant reduction in vehicle exhaust gas emissions. From the correlation of the results obtained, it can be concluded that this methodology, using Sentinel-5P image analysis may be used to measure the NO2 concentrations in the atmosphere in cities where there is no on-site air quality monitoring network. | Martha, Correa; Mónica, Duque; Mauricio, Meza; Rodolfo, Salazar. | 2022 | Scopus | Link | Teledetección |
| Modificación de la superficie terrestre por efectos de origen ultraterrestre. | Origen ultraterrestre. | Desde el orígen del Planeta tierra, y a lo largo de su historia gológica, han ocurrido colisiones de objetos que se localizan en el espacion ultraterrestre. Aquellas colisiones han tenido la energía suficiente para modificar la superficie terrestre, pero también trajeron el agua al planeta, posiblemente incorporando al mar anitguo los elementos necesarios para que se produzca la vida y colocaron en la superficie del planeta elementos metálicos que son utilizados por los humanos en el desarrollo industrial. Sin embrago, probablemente tambióen han sido causantes de extinciones masivas. | Ramírez Milton | 2022 | Revista Informativa IGM | Link | Planetología |
| Use of theHeuristic Model and GIS to Zone Landslide Hazards in the Mira River Basin, Ecuador. | "Landslide Hazard Zonification Mira river basin GIS". | The lack of geo-information related to important types of natural hazards such us landslides, leads to use quick and inexpensive methodologies in models that indicate the reality, this with the purpose of the acquisition of information for planning and development of the territory. The main objective of this study has been to determine landslides hazard zones along the Mira river basin in northern Ecuador. The delimitation of these zones has been performed through geographic information systems (GIS), which supported to collect, process and interrelate the information of conditional factors (land cover, lithology and slope) with triggering factors (seismic and precipitation records). These factors have been weighted with a heuristic model for their subsequent combination through the use of double-entrymatrices. The result of the model application delivered five hazard categories of landslides being high, medium, low, none and not applicable category (water bodies and units without geomorphological characterization). | Mauricio David, Reyes Pozo; Victor Julio, Moreno Izquierdo; Adriana Carolina Lopez Alulema; Lorena del Pilar, Lasso Benítez; Verónica del Rocío, suango Sanchez; Theofilos Toulkeridis. | 2020 | Springer | Link | Cartografía Temática |
| Application of geo-technologies within the socio-economic analysis and its implication to the territory reception capacity – A case study of Esmeraldas, NW Ecuador. | Landscape ecology Geographic Information System (GIS) Constructive Physical Aptitude (AFC) Receptivity Construction Capacity (CAC) Analytical hierarchy process (AHP). | The city of Esmeraldas exposes several vulnerabilities to natural disasters, health deficiencies, as well as inaccessibility to basic services and education. Therefore, it appears the need to identify the relationships between its socio-economic status and the corresponding territorial conditions. The current study aims to identify spatial relations in the territory using geo-technologies and a holistic evaluation of landscape ecology, as the starting point for a territory potentials study that includes Physical Constructive Aptitude (PCA) and Receptivity Construction Capacity (RCC). The homogeneous units are established by the information obtained in the spatial data survey in geomorphology, geopedology, coverage and land use, and socio-economic variables. These units are determined by the existing threats in the area, such as floods and landslides, in order to define the level of reciprocity regarding to the population socioeconomic status of the study area. The results show that 31% of the population lives in acceptable with strong limitations areas, followed by 29% in the restricted or exclusive areas, 22% in the acceptable with limitations areas, and 17% in the acceptable areas. Therefore, most of the population lives in limited areas for construction and have low socio-economic status. | Mosquera, Dennys; Suango, Verónica; Cando, Alejandra; Yepez, Katty; Tamayo, Elizabeth; Moreno, Julio; Toulkeridis, Theofilos. | 2022 | ResearchGate | Link | Cartografía Temática |
| Geo-technologies applied to the spatial analysis of territorial inequalities - Case study of Latacunga, Central Ecuador. | "Territorial inequalities socioeconomic status constructive physical aptitude geotechnologies landscape ecology". | This research zonifies territorial inequalities in Latacunga (Ecuador), considered one of the cities with high global vulnerability to risks due to its geographic location. Based on the information generated by the former Ecuadorian Space Institute, through the project "Generation of geospatial information at a scale of 1: 5 000 for the determination of the physical fitness of the territory and urban development through the use of geotechnologies ", taking landscape ecology as a methodological synthesis, the hypothesis of the existing spatial relationship between socioeconomic level (SES) versus constructive physical aptitude (CFA) is proposed to determine territorial inequalities. For the CFA, five categories were determined (defined by the analysis of the geomorphological characteristics -such as slope and geological factor- and edaphic -such as water table, drainage, texture and stony-), prevailing the suitable areas with severe limitations in 70% of the territory. Regarding the SES (granted by the type of housing, availability of basic services, level of education and economic activity), the medium-low status predominates with 44%, showing marked differences between the five levels obtained. From the interaction between SES and CFA, 9 homogeneous units were established that determine territorial inequalities, prevailing, in 54%, the unit with CFA with severe to extreme limitations with a low SES. Therefore, it is evident that the geospatial knowledge generated when determining the relationship between the SES and the CFA of the territory allows decision-making authorities to design policies and projects that reduce territorial inequalities, through the understanding of the relationships between housing, services, space and characteristics of the soil. | Dennys Mosquera Lopez; Zulay Cueva Jimenez; Irene Chalco Barahona; Julio Moreno Izquierdo; Suango, Verónica; Alondra García Villacres; Toulkeridis, Theofilos. | 2022 | Springer | Link | Cartografía Temática |
| Capacity of Constructive Reception through the ge-ospatial analysis of physical soil variables in Ibarra, Ecuador. | capacity of the constructive reception geo-spatial analysis soils geomorphology geology physical suitability. | In the city of Ibarra, comprehensive scientific studies are limited to those that are analyzed in the territory from the physical point of view. Based on the problem of expansion due to population growth, this study analyzes the physical variables of the soil based on the photo-interpretation of the geoforms, which is the basic unit of analysis. This methodology is a tool from which it is possible to locate suitable areas for the expansion urban establishment. This analysis is based on the physical suitability of the place related to the preservation of the environment and the present natural characteristics (impact). Through this process categorized areas are obtained to establish or not the constructive compatibility. In the city of Ibarra, the predominant category is acceptable because it is located in the area with slight limitations for construction and nullfor the threat of landslides and floods, these conditions are favorable for the establishment of constructive activities. | Veronica, Suango; Dario, Diaz; Mauricio David Reyes Muñoz; Cañar, Maribel; Zapata, Angelica; Moreno Izquierdo, Julio; Alondra García-Villacres & Theofilos Toulkeridis. | 2019 | Springer | Link | Cartografía Temática |
| Funcionalidad del lenguaje Python para la automatización de tareas. | Programación Python automatización arcpy PyScripter. | This article studies the usefulness of the scripts generated in the PyScripter development environment, because there are tasks in GIS that are repetitive and that can be executed automatically for the management of geospatial information. PyScripter is a powerful and lightweight development environment that, by using the libraries and understanding their functions, performs a massive automatic export of files. The script helped to execute a task that was previously developed manually and individually. The results obtained are satisfactory and allow this activity to be developed automatically and in less time. | Suango Sánchez, Verónica | 2021 | Geociencia & Geodatos IGM | Link | Aplicación Geoespacial |
| Propuesta de declaración del espectro electromagnético para Ecuador. | Espectro electromagnético gestión del espectro electromagnético propuesta de declaración espectro electromagnético | The present work shows the state of art about the different limits assigned to each range of the electromagnetic spectrum by different authors and international organizations, and searches through the bibliographic review to establish a single “Proposed declaration of the electromagnetic spectrum for Ecuador”, that clearly identify these limits and contribute to the universalization of criteria and language, comparison of interinstitutional and international results in a clear and precise way, and serve as a contribution to identify in an objective way the sections not attended of the spectrum, for the proper planning, use and management of this resource, by the different actor and public institutions and mainly in attention to the axes of Security and National Defense. | Herrera, Myrian; Porras, Luis; Estrella, Carlos. | 2019 | Revista Geoespacial | Link | Teledetección |
| Two independent real-time precursors of the 7.8 Mw earthquake in Ecuador based on radioactive and geodetic processes—Powerful tools for an early warning system. | Precursor Radiation GPS Early warning system Earthquake detection. | The 7.8 Mw earthquake in Ecuador during spring of 2016 was an unprecedented opportunity to collect data on two independent seismic precursors. The first precursor was based on the radiation of the environment, which changed considerably several hours before the main earthquake. Real-time data was collected by measurements at every minute. However, these determinations occurred before and after the main earthquake of 2016, and any significant seismic event of>5.0 Mw, was recorded with an increase of hundreds to becs/min several hours before such telluric movements. Seismic events of less than or equal to 5.0 Mw were also possibly recorded, if the events were close to the surface. The Second seismic precursor was set up thanks to 24 GPS stations spread all over the Ecuadorian continent, which registered several minutes before the main earthquake a significant change in their usual position. These measurements allow the exact position of every station to send a signal to the main base every second. Such significant alteration of the main point was determined exclusively for the main 7.8 Mw earthquake, while other, less intense seismic activities were not recorded at all. Based on our measurements in real-time, we can conclude that the two precursors, independent from each other, are powerful tools for the implementation of an early warning system of earthquakes for forecasting in the medium and short term in active continental margins. | Toulkeridis,Theofilos; Porras, Luis; Tierra, Alfonso; Toulkeridis, Katerina; Cisneros, David; Luna, Marco; Carrión, José; Herrera, Myrian; Murillo, Alfonso; Perez, Juan; Tapia, Santiago; Fuertes, Walter; Salazar, Rodolfo. | 2019 | ResearchGate | Link | Geotecnología |
| Diferencias obtenidas del contenido de vapor de agua en ciertas regiones del Ecuador entre productos satelitales y valores calculados de las estaciones meteorológicas de la REGME. | Contenido de vapor de agua Sistema de Posicionamiento Global Parámetros GPS Espectrorradiómetro de imágenes de media resolución (MODIS) Red Ecuatoriana de Monitoreo Continuo Estaciones Metereológicas. . | Using the GPS transmission signal it is posible to study different processes and find relationships to understand the physical conditions of the atmosphere, and for that the GNSS permanent stations become multipurpose stations for different studies of the upper atmosphere. The permanent stations of the REGME, besides tracking the signal of different GNSS constellations, are also equipped with meteorological sensors that help to refine the atmospheric measurements as is tha case of the water vapor content. The present study seeks to analyze the differences in water vapor content between the GNSS permanent stations of Ecuador with the values of satellite platforms in the area, in order to establish a criterion for the practical application of the values obtained from GNSS processing. | Porras, Luis; Romero, Ricardo; Herrera, Myrian; Estrella, Carlos; Tierra, Alfonso; Zabala, C. | 2017 | Geociencias & Geodatos | Link | Teledetección |
| Diagnóstico del comportamiento de la REGME en el momento del terremoto del 16 de abril del 2016 con soluciones de la Técnica PPP e Interferometría Radar. | REGME Precise Point Positioning Temporal Series Global Navigation Satellite System Radar Interferometry. | The maintenance and updating of a Geodetic Reference Framework is given by the measurements of the temporal variations of the coordinates of the reference points on the surface. Continuous monitoring GNSS stations represent a useful infrastructure for performing these observations with high precision and high temporal resolution. In the case of Ecuador, REGME (GNSS Station Network for Continuous Monitoring of Ecuador) has been able to measure the deformations of Earth’s crust from 2008 to the present, including the Earthquake of Pedernales on April 16, 2016. The aim of this work was to perform a diagnosis of the behavior of the REGME during and after this earthquake, with absolute processing. Exact position of the point to determine patterns in the observations and the corresponding studies of the time series and the radar of the interferometry. The Cartesian coordinates of the REGME stations were obtained with the centimetric precisions, as well as the behavior second by second of the variation for the possible pattern that preceded the displacement of the product of the earthquake. At the time of the earthquake, it was possible to show that all the stations in the REGME record the event, following the same pattern, varying in their dependence on the distance from the station to the epicenter. | Porras, Luis; Romero, Ricardo; Amores, Marco; Herrera, Myrian; Estévez, Pamela; Estrella, Carlos. | 2017 | Geofísica (ISSUE 67) | Link | Geotecnología |
| A potential early warning system for earthquakes based on two independent real-time precursors – the case of Ecuador´s 7.8 Mw in 2016. | Precursor Radiation GPS Early warning system Earthquake detection | We propose a new potential early warning system for earthquakes based on a case study of the 7.8 Mw earthquake in Ecuador during spring of 2016. This seismic event allowed the unprecedented opportunity of data collection of two independent seismic precursors. The first precursor has been based on the radiation of the environment, which altered significantly hours prior the main earthquake. The second seismic precursor has been established by 24 GPS stations being situated all over the mainland of Ecuador, which registered several minutes before the main earthquake a significant alteration of their regular position. These measurements allow the exact position of every station yielding every second a signal to the main base. Such significant alteration from the main point cloud has been determined exclusively for the main 7.8 Mw earthquake, while other, less intense seismic activities have not been registered at all. Based on our measurements determined on real-time, we are able to conclude that both precursors independent from each other, are powerful tools for the establishment of an early warning system for earthquakes for intermediate- and short-term predictions in active continental margins. | Toulkeridis, Theofilos; Porras, Luis; Tierra, Alfonso; Toulkeridis, K; Cisneros,D; Luna, Marco; Carrión, José; Herrera, Myrian; Murillo, A; Perez-Salinas,J; Tapia,S; Fuertes, Walter; Salazar, Rodolfo. | 2019 | ResearchGate | Link | Geotecnología |
| Modificación de la superficie terrestre por efectos de origen ultraterrestre. | Superficie terrestre origen ultraterrestre. | Desde el origen del planeta Tierra, y a lo largo de su historia geológica, han ocurrido colisiones de objetos que se localizan en el espacio ultraterrestre. Aquellas colisiones han tenido la energía suficiente para modificar la superficie terrestre, pero también trajeron el agua al planeta, posiblemente incorporando al mar antiguo los elementos necesarios para que se produzca la vida y colocaron en la superficie del planeta elementos metálicos que son utilizados por los humanos en el desarrollo industrial. Sin embargo, probablemente también han sido causantes de extinciones masivas. | Ramírez, Milton. | 2021 | IGM | Link | Planetología |
| Use of the Heuristic Model and GIS to Zone Landslide Hazards in the Mira River Basin, Ecuador. | Landslide Hazard Zonification Mira river basin GIS. | The lack of geo-information related to important types of natural hazards such us landslides, leads to use quick and inexpensive methodologies in models that indicate the reality, this with the purpose of the acquisition of information for planning and development of the territory. The main objective of this study has been to determine landslides hazard zones along the Mira river basin in northern Ecuador. The delimitation of these zones has been performed through geographic information systems (GIS), which supported to collect, process and interrelate the information of conditional factors (land cover, lithology and slope) with triggering factors (seismic and precipitation records). These factors have been weighted with a heuristic model for their subsequent combination through the use of double-entrymatrices. The result of the model application delivered five hazard categories of landslides being high, medium, low, none and not applicable category (water bodies and units without geomorphological characterization). Therefore, if the slope of a surface increased and it had soils that have poor vegetation or has been related with non-consolidated or fractured lithologic material, during the occurrence of strong precipitations (the principal triggering factor), all of it creates favorable scenarios for the generation of landslides. Therefore, for the territorial development in the Mira River basin, there is the need of the implementation of correct practices in places with adequate slopes, as this appeared to be the most important conditioning factor. | Mauricio David Reyes Pozo; Víctor Julio Moreno Izquierdo; Adriana Carolina, López Alulema; Lorena del Pilar, Lasso Benítez; Verónica del Rocío Suango Sanchez & Theofilos Toulkeridis. | 2020 | Springer | Link | Cartografía Temática |
| Application of Quality Tools for Evaluation of the Use of Geo-Information in Various Municipalities of Ecuador. | Thematic geoinformation Planning Territorial ordering Quality tools Focus group. | Thematic geoinformation, at a scale of 1: 25,000, related to studies of geopedology, production systems, climate, hydrology, infrastructure and socioeconomic, constitutes a relevant factor in the activities of administration, environmental planning and territorial planning. In Ecuador, the Military Geographical Institute (IGM), was in charge of generating multipurpose, reliable, georeferenced and integrated thematic geoinformation, at a semi-detailed level. This occurred for territorial planning and management, aimed at solving economic and social problems, through an investment project, which began at the level of fourteen cantons of the Guayas river basin (2009–2010). The same was later extrapolated at the national level (2011–2017) and the corresponding geoinformation was delivered to the Decentralized Autonomous Governments (GAD). Since 2012 it began to evaluate the use and level of application of said geospatial information to identify actions to improve the products and services generated within the framework of the project, hereby mainly to the cantons of the Guayas river basin project. The evaluation was performed in fourteen municipalities in the provinces of Guayas and Los Ríos,where itwas found that 28% always used geoinformation, 38% used it sporadically and 34% did not use it. These results support the politicians and decision makers in the country, in the sense that they must carry out permanent evaluations on the use of geospatial information related to this type of project, otherwise the use of public resources would not be being used with objectivity and efficiency. | Zapata, Angélica; Sandoval, Jose; Zapata, Judith; Ordoñez, Eduardo; Suango, Verónica; Moreno, Julio; Mullo, Christian; Tipán, Edgar; Karen Elizabeth, Rodríguez & Theofilos Toulkeridis. | 2020 | Springer | Link | Cartografía Temática |
| Caracterización espectral de estrés hídrico en el cultivo de pepino dulce (Solanum muricatum). | Water stress spectroradiometer spectral signatures spectral indexes. | The plants have a degree of water tolerance, the lack or excess of this resource causes them to enter a state of stress where their morphology and physiology are affected. The present study recorded the variations that are made in the plant through the energy reflected at different wavelengths of the electromagnetic spectrum (spectral signatures) by means of a FieldSpec 4Hi-Res radiometer, thus allowing identifying at certain portions of the spectrum electromagnetic essential characteristics such as: chlorophyll, degree of humidity and vigor. By calculating vegetation indices such as: NDVI, GNDVI, CCI, PRI and WI, indirect daily characteristics of the biophysical processes that took place in the sweet cucumber plant (Solanum muricatum) were also obtained, in addition to a staggered classification of correlation coefficients and pending areas of the spectrum were identified with the possibility of a relevant direct correlation thus indicating the zones (1431-1440) [nm] and (1466-1483) [nm] where the greatest impact produced by water stress on the plant is reflected adjusting to a second degree polynomial model with correlation coefficients of 0.9439 and 0.9229 respectively. The capture of information was carried out in sixteen trials over a period of 10 days, 8 trials subjected to controlled conditions of absence of irrigation, contrasting with 8 controlled irrigation trials to understand the different responses to both conditions in order to characterize water stress and optimize irrigation resources in precision agriculture activities. An analysis of divergences with these tests showed that the areas of the spectrum that show a high contrast are: (700-800) [nm], (1400-1500) [nm] and (1875-1900) [nm]. | Maiguashca, Javier; Rivadeneira, Jose. | 2020 | ResearchGate | Link | Teledetección |
| The use of GIS in the predictive Ecological Niche Modeling of Vector Species of the American Trypanosomiasis Disease (Chagas), in Ecuador. | Chagas GIS modelling ecological niche prediction vector species Ecuador. | This current research performed a predictive ecological modeling niche with a statistical evaluation and their corresponding efficiency percentage about three vectors species of the American trypanosomiasis (Triatoma dimidiata, Triatoma nfestans y Rhodnius ecuadorensis) in Ecuador, based on GIS technologies. We aimed to evaluate the effectiveness of the algorithms used in different software and to develop predictive models of species ecological niche. The obtained results, have been a more efficient prediction being closer to reality, allowing to become a strategic tool in the planning of potential future projects. The chosen methodology for the models has been unlike prior used traditional methods, as it has been based on strategic information that covers records of vectors and infected persons, including the biophysical and biological variables as well as several chosen ecological criteria leading to a better understanding of the discrimination of the models. | Perugachi, Jessie; Zapata, Judith; Ordoñez, Eduardo; Toulkeridis,Theofilos; Zapata, Angelica. | 2020 | ResearchGate | Link | Cartografía Temática |
| Determination of the Natural Plant Coverage of the Eloy Alfaro Canton based on GIS, NW Ecuador. | Natural Plant Coverage GIS Ecuador. | The current study quantifies and characterizes the types of the Natural Plant Coverage (NPC) within the Eloy Alfaro canton and its degrees of alteration by anthropic action. The methodology is based on the interdependent interpretation of products from remote sensors, with the support of the geographic information systems. The Eloy Alfaro canton, which is part of Colombian Chocó Corridor, covers a total area of 466,285.81 ha, of which 55.791% (260,146.72 ha) corresponds to the NPC, which comprises forests, shrubs, and moist herbaceous and wetland, highlighting the slightly altered rainforest with 46.141% (215,148.43 ha), followed by moderately altered rainforest with 3.761% of the total cantonal surface (17536.75 ha). The Ecological Reserves Cotacachi-Cayapas and Cayapas-Mataje as well as the Pambilar Wildlife Refuge, which are part of the Governmental Natural areas Heritage (PANE), occupy a total of 147,486.78 has corresponding to 31.630% of the canton surface. The complete surface area of the Eloy Alfaro canton has been characterized and evaluated for its present alteration by the multiple anthropic activities, allowing a general view of the given circumstances of the actual stage of the NPC. Such detailed evaluation and diagnostic mapping are a key tools for any plan of prevention of further potential alteration of the NPC. | Zapata, Judith; Galarza, José; Yánez Misael; Toulkeridis, Theofilos; Zapata, Angélica; Ordoñez, Eduardo. | 2020 | RIEEE | Link | Cartografía Temática |