In coastal regions, the combined effects of natural processes, human activity, and climate change have caused shoreline changes that may increase in future. The assessment these is essential for forecasting their future position proper management. this context, Gulf California (GC), Mexico, received little attention no previous studies addressed forecasting. study, researchers assessed historical to forecast long-term positions. To address this, data were obtained from Landsat satellite...

Over the last few years, urban expansion has occurred without much control or planning, causing both regional and global impacts on natural ecosystems. This situation spurred reflection current planning policies also stimulated research into new tools methodologies for simulation of alternative territorial scenarios future. In this respect, use multicriteria evaluation techniques within a GIS environment proved to be an efficient option optimal allocation land uses. However, those have not...

El objetivo de esta investigación fue estudiar la deforestación y sus causas en el estado Sinaloa, México. Para ello, se utilizó cartografía Uso Suelo Vegetación del año 1993 2011 a escala 1:250 000, con estimó mediante una técnica detección cambios; posteriormente, caracterizó consulta expertos. Por último, aplicó matriz cambios para analizar las pérdidas, ganancias transiciones corroborar cartográficamente lo obtenido por los expertos cambios. Los resultados indican 126.50 km2/año tasa...

The last ten years have shown that Climate Change (CC) is a major global issue to attend to. integration of its effects into coastal impact assessments and adaptation plans has gained great attention interest, focused on avoiding or minimizing human lives asset losses. Future scenarios mean sea level rises wave energy increase rates then been computed, but downscaling still remains necessary assess the possible local in small areas. In this context, CC climate Gulf California (GC), Mexico,...

Se analiza la dinamica de ocupacion del suelo en Madrid entre 1990 y 2000 usando los datos CORINE. Para ello se lleva a cabo una tabulacion cruzada dos mapas determinan las ganancias, perdidas, intercambios el cambio neto total cada categoria al suelo, distintos niveles desagregacion leyenda ocupaciones suelo. observa un fuerte crecimiento zonas urbanas, aumento algo menor forestales importante disminucion areas dedicadas actividades agrarias.

The present study focuses on identifying and describing the possible proximate underlying causes of deforestation its factors using combination two techniques: (1) specialized consultation (2) spatial logistic regression modeling. These techniques were implemented to characterize process qualitatively quantitatively, then graphically represent from a temporal point view. area is North Pacific Basin, Mexico, 2002 2014. map difference technique was used obtain land-use vegetation maps. A...

Arid and semiarid regions are geographic units that cover approximately 43% of the earth’s surface worldwide, conditions extreme drought reduced vegetation predominate in these regions. In Mexico, arid ecosystems more than half territory, with desertification, mainly caused by anthropogenic activities climatic events, as main problem The present research aimed to assess, identify, classify zones employing a methodology based on multicriteria evaluation analysis (MCA) using weighted linear...

Abstract This study evaluated seven vegetation indices for the monitoring of a cherry tomato crop using an unmanned aerial vehicle with multispectral camera that measures in green, red, and near-infrared spectral bands. A photogrammetric flight plan was designed to capture images every 2 weeks two agricultural parcels identified as Treatment 1 ( <m:math xmlns:m="http://www.w3.org/1998/Math/MathML"> <m:msub> <m:mrow> <m:mi>T</m:mi> </m:mrow> <m:mn>1</m:mn> </m:msub> </m:math> {T}_{1} )...

Deforestation is an anthropic phenomenon that negatively affects the environment and therefore climate, carbon cycle, biodiversity sustainability of agriculture drinking water sources. counteracted by reforestation processes, which caused natural regeneration forests or establishment plantations. The present research focused on generating a simulation model to predict deforestation for 2030 2050 using geospatial analysis techniques multicriteria evaluation. case study North Pacific Basin,...

El articulo presenta un estudio de los cambios cobertura del suelo ocurridos durante la decada 1990 producto crecimiento urbano Zona Metropolitana Ciudad Mexico (ZMCM). Para ello, se empleo una metodologia que combina el uso tecnicas clasificacion digital y visual a partir imagenes satelite, sistemas informacion geografica (SIG) analisis estadisticos, con fin observar espacio-temporales en zona e identificar las coberturas sujetas mayor presion por parte expansion urbana. metodo emplea...

In any model, Sensitivity Analysis (SA) is a fundamental process to improve the robustness and credibility of results, as part validation procedure. Generally, SA determined how variation in model output can be apportioned different sources variations, given depends upon information fed into it. Many complex techniques have been developed within field numerical modeling; however, they limited applications for spatial models, do not consider variations distributions variables included. this...

Selective logging in the tropics is a major driver of forest degradation by altering structure and function, including significant losses aboveground carbon. In this study, we used 30-year Landsat time series (1985–2015) to analyze carbon emissions due selective Forest Reserve Venezuelan Amazon. Our work was conducted two phases: first, means direct method detected infrastructure related at sub-pixel level, for second, an indirect approach using buffer areas applied results mapping. Pre-...

Anthropogenic activities influence the loss of mangroves, increase natural phenomena such as hurricanes, tropical storms, and El Niño, consequently concentrations greenhouse gases CO2, promoting climate change. There are strategies to reduce emissions from Deforestation Forest Degradation, Sustainable Development Goals, General Law on Climate Change counteract these conditions. Therefore, this research aims generate an integral simulation model sustainable mangrove development scenarios for...

The main objective of this research is to analyze deforestation in State Sinaloa during the period 1990-2014. For this, "deforestationhot-spot areas" were identified, by crossing maps 1993 and 2011 at a 1:250,000 scale with knowledge from environmental forest experts each region. Landsat images 1990 2014 Terra Amazon System used monitor most critical hot spot area, applying Linear Spectral Mixture Analysis Image Segmentation Ground Product. In order generate map year zero (1990), every...

En los últimos años, se ha deforestado el 20% de manglar a nivel mundial. México es países con mayor pérdida superficie mangle, algo que contribuye las emisiones CO2 e impulsa cambio climático. Sin embargo, falta conocimiento sobre factores influyen en la y ganancia del manglar, CO2, dinámica usos suelo cobertura vegetal escala local regional. Por tanto, objetivos este estudio fueron analizar uso zona Marismas Nacionales (México) durante periodo 1981–2015, determinar tasa deforestación...

Previous analysis of land use and cover changes help us to understand the range, importance effects that this dynamic has in environment its relation with human’s activities. This work consists analyzing use/cover for Municipalities Culiacan Navolato, Mexico, through statistical techniques Geographic Information Systems. The methodology is allowed determine changes, gains, losses transitions different categories period studied. results show significant denominate categories, agriculture...

Abstract The risk of flooding is a destructive natural hazard, and it increasing due to heavy rainfall anthropogenic factors. Hydrologic–hydraulic models serve as valuable tools for flood forecasting predicting future flow patterns. These evaluate simplify processes in ungauged basins. In this study, three hydrologic (soil conservation service [SCS], Snyder, Temez) were used calculate synthetic unit hydrographs the Humaya Tamazula River (H-T-R) basin. Additionally, flows derived from...

The design and development of future explorative external scenarios are useful tools for the spatial planning even more metropolitan (Peterson et al, 2003; Pettit y Pullar, 2004; Luca, 2007; Carsjens, 2009). However, policy practices in Spain lack this instruments (Valenzuela, Aguilera, Soria Molero, 2008) This paper shows a System Dynamics-based model designed to estimate urban growth demands areas. This has been specifically developed Madrid Granada areas (Spain), where calibrated. After...

In the last years whole planet has been suffering remarkable changes, including land use and cover, that this is one of many components global change. The present study as main objective described changes cover occurred in State Sinaloa during period 1976-2011. For this, we used 4 maps vegetation 1976, 1993, 2007 2011. This analysis was carried out applying statistical techniques Geographic Information Systems (GIS). methodology based on cross-tabulation matrix or change matrix, from which...