Results 1 to 10 of about 137,058 (177)

Análisis multiescala de indicadores arqueológicos de Tlajinga, Teotihuacan (México). Desde la percepción remota a la microscopía. [PDF]

open access: yesBoletín de la Sociedad Geológica Mexicana, 2019
El barrio de Tlajinga es un área ubicada al sur de la ciudad de Teotihuacán, Estado de México, que preserva materiales prehispánicos diseminados en distintas zonas del terreno, así como estructuras arqueológicas enterradas.
Barba, Luis   +5 more
core   +2 more sources

Aplicación de una metodología de análisis de datos obtenidos por percepción remota orientados a la estimación de la productividad de caña para panela al cuantificar el NDVI (índice de vegetación de diferencia normalizada)

open access: yesCiencia y Tecnología Agropecuaria, 2015
La estimación de la productividad en caña de azúcar resulta de gran importancia para la economía colombiana. En el presente trabajo, se aplica el modelo de Productividad Primaria Neta (PPN) a escala regional de Kumar y Monteith. Se hacen análisis espacio-
Fabio Rueda Calier   +3 more
doaj   +2 more sources

A Probabilistic Multi-Source Remote Sensing Approach to Evaluate Extreme Precursory Drought Conditions of a Wildfire Event in Central Chile

open access: yesFrontiers in Environmental Science, 2022
Forest fires are a major issue worldwide, and especially in Mediterranean ecosystems where the frequency, extension and severity of wildfire events have increased related to longer and more intense droughts.
Roberto O. Chávez   +6 more
doaj   +1 more source

npphen: An R-Package for Detecting and Mapping Extreme Vegetation Anomalies Based on Remotely Sensed Phenological Variability

open access: yesRemote Sensing, 2022
Monitoring vegetation disturbances using long remote sensing time series is crucial to support environmental management, biodiversity conservation, and adaptation strategies to climate change from global to local scales.
Roberto O. Chávez   +6 more
doaj   +1 more source

A USER-FRIENDLY REMOTE-SENSING WEB-PLATFORM FOR BIODIVERSITY CONSERVATION AND MANAGEMENT IN PROTECTED AREAS [PDF]

open access: yesThe International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2020
The Chilean SNASPE is a complex network of 104 protected areas covering 18.5 million hectares of continental and insular Chile in South America.
R. O. Chávez   +3 more
doaj   +1 more source

MODIS Time Series Reveal New Maximum Records of Defoliated Area by Ormiscodes amphimone in Deciduous Nothofagus Forests, Southern Chile

open access: yesRemote Sensing, 2023
Outbreaks of the Ormiscodes amphimone moth are among the largest biotic disturbances in South America, defoliating vast areas of native Nothofagus pumilio forests in the Chilean and Argentinian Patagonia in the last decade.
Sergio A. Estay   +5 more
doaj   +1 more source

Snow Cover and Snow Persistence Changes in the Mocho-Choshuenco Volcano (Southern Chile) Derived From 35 Years of Landsat Satellite Images

open access: yesFrontiers in Ecology and Evolution, 2021
Mountain regions have experienced above-average warming in the 20th century and this trend is likely to continue. These accelerated temperature changes in alpine areas are causing reduced snowfall and changes in the timing of snowfall and melt. Snow is a
Roberto O. Chávez   +5 more
doaj   +1 more source

Estudio espectral de diferentes variedades de agave para la creación de una librería espectral para su mapeo y monitoreo mediante percepción remota

open access: yesInvestigaciones Geográficas, 2022
El agave es una planta representativa de paisajes naturales y antrópicos de muchas regiones áridas y semiáridas de México y da gran cantidad de productos, entre ellos, el mezcal.
Nirani Corona-Romero   +2 more
semanticscholar   +1 more source

Delimitación de zonas con potencial geotérmico aplicando técnicas de percepción remota que correlacionan las características físicas de temperatura de superficie terrestre y densidad del subsuelo: Caso de estudio Nayarit

open access: yesQuivera Revista de Estudios Territoriales, 2022
En el contexto actual, donde los combustibles fósiles generan un grave problema ambiental, se han buscado nuevas fuentes de energía alternativa más amigables con el medio ambiente, entre ellas se encuentran la energía solar, eólica, de oleaje y ...
Guillermo Isaac Nájera-Rocha   +2 more
semanticscholar   +1 more source

Marine turtle hotspots in the Gulf of Mexico and Mesoamerican Reef: Strengthening management and preparedness

open access: yesFrontiers in Marine Science, 2022
Marine turtles are of the highest ecological concern in terms of conservation and restoration programs and marine territorial ordering. Marine resource-extracting industries have severe negative impacts on their populations and their habitats.
Eduardo Cuevas   +12 more
doaj   +1 more source

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