Foto_tam_carnet.png_thumb90

Roberto Chávez Oyanadel

Profesor adjunto

Pontificia Universidad Católica de Valparaíso

Valparaiso, Chile

Líneas de Investigación


Percepción remota cuantitativa, espectroscopía, análisis de series de tiempo, sistemas de información geográfico aplicado a la evaluación y monitoreo de la vegetación y estudio de variables esenciales para la biodiversidad

Educación

  •  Ingeniero Forestal, Universidad de Chile. Chile, 2001
  •  PhD Geo-information sciences and remote sensing, Wageningen University. Holanda, 2014
  •  Ciencias Forestales, UNIVERSIDAD DE CHILE. Chile, 1999
  •  Data Science, PONTIFICIA UNIVERSIDAD CATOLICA DE VALPARAISO. Chile, 2021

Experiencia Académica

  •   Profesor Adjunto Full Time

    PONTIFICIA UNIVERSIDAD CATOLICA DE VALPARAISO

    Ciencias del Mar y Geografía

    Valparaíso, Chile

    2017 - A la fecha

Experiencia Profesional

  •   Research asistant Full Time

    Wageningen University and Research Centre

    Wageningen, Holanda

    2014 - 2015

  •   Ingeniero de proyectos EIA-DIA Full Time

    Pramar ambiental e IGSA Consultores

    Santiago, Chile

    2003 - 2008

Premios y Distinciones

  •   “8-band challenge”, fase 2

    Digital Globe

    Estados Unidos, 2011

    In 2009, the company Digital Globe launched the WorldView2 satellite, the first high spatial resolution satellite providing 8 spectral bands in the visible and near-infrared (VIS-NIR) regions of the electromagnetic spectrum. In order to investigate the potential of the new sensor for different environmental applications, Digital Globe organized in 2010 and 2011 a research competition: the ‘8-Band Research Challenge’. They granted the best proposals free WorldView2 imagery and a final price to the best five applications. The authors of this report presented a research proposal, and later a paper, entitled “Object-based analysis of 8-bands Worldview2 imagery for assessing health condition of desert trees” to the 8-Band Research Challenge, Phase 2. A total of 350 researchers from 70 countries participated in this contest, and the paper of Chávez and Clevers from the Center for Geo-Information of Wageningen University was awarded as one of the five winner papers.


 

Article (21)

Andean peatlands at risk? Spatiotemporal patterns of extreme NDVI anomalies, water extraction and drought severity in a large-scale mining area of Atacama, northern Chile
MODIS Time Series Reveal New Maximum Records of Defoliated Area by <i>Ormiscodes amphimone</i> in Deciduous <i>Nothofagus</i> Forests, Southern Chile
npphen: An R-Package for Detecting and Mapping Extreme Vegetation Anomalies Based on Remotely Sensed Phenological Variability
A Probabilistic Multi-Source Remote Sensing Approach to Evaluate Extreme Precursory Drought Conditions of a Wildfire Event in Central Chile
Continuous monitoring of forest change dynamics with satellite time series
Canopy Gap Structure as an Indicator of Intact, Old-Growth Temperate Rainforests in the Valdivian Ecoregion
Snow Cover and Snow Persistence Changes in the Mocho-Choshuenco Volcano (Southern Chile) Derived From 35 Years of Landsat Satellite Images
Spatiotemporal Peatland Productivity and Climate Relationships Across the Western South American Altiplano
Spatio-temporal assessment of beech growth in relation to climate extremes in Slovenia – An integrated approach using remote sensing and tree-ring data
Water Crisis in Petorca Basin, Chile: The Combined Effects of a Mega-Drought and Water Management
A Multiscale Productivity Assessment of High Andean Peatlands across the Chilean Altiplano Using 31 Years of Landsat Imagery
A Self-Calibrated Non-Parametric Time Series Analysis Approach for Assessing Insect Defoliation of Broad-Leaved Deciduous Nothofagus pumilio Forests
GIMMS NDVI time series reveal the extent, duration, and intensity of blooming desert events in the hyper-arid Atacama Desert, Northern Chile
Human-environmental drivers and impacts of the globally extreme 2017 Chilean fires
Multidecadal environmental pollution in a mega-industrial area in central Chile registered by tree rings
Quantifying massive outbreaks of the defoliator moth Ormiscodes amphimone in deciduous Nothofagus-dominated southern forests using remote sensing time series analysis
A multi-scale approach to assess the effect of groundwater extraction on Prosopis tamarugo in the Atacama Desert
Bayesian object-based estimation of LAI and chlorophyll from a simulated Sentinel-2 top-of-atmosphere radiance image
Detecting Leaf Pulvinar Movements on NDVI Time Series of Desert Trees: A New Approach for Water Stress Detection
Assessing Water Stress of Desert Tamarugo Trees Using in situ Data and Very High Spatial Resolution Remote Sensing
Modelling the spectral response of the desert tree Prosopis tamarugo to water stress

BookSection (1)

Chapter 4 Remote Sensing for Insect Outbreak Detection and Assessment in Latin America

Proyecto (12)

Consolidación tecnológica del Sistema de Monitoreo Fenológico para la Zona Central y Norte de Chile mediante armonización de imágenes satelitales de múltiples escalas espacio-temporales e internet satelital
Núcleo Milenio AFOREST
Núcleo Milenio AndesPeat
Instituto de Ecología y Biodiversidad
Sistema de monitoreo fenológico satelital y de campo para la evaluación en tiempo real de los efectos de la variabilidad climática y eventos extremos sobre la vegetación nativa de Chile Central
A spatiotemporal assessment of major disturbances on Chilean vegetation phenology, productivity and resilience using 40 years of continuous remote sensing records
A geo-spatial analysis of the land surface phenology of Chile: new insights into assessing the potential effects of climate change on vegetation
Climatic and hydrological changes in the Altiplano during the last millenium=> new insights from annually-resolved paleoarchives.
Massive defoliation in Patagonian forests=> untangling the ecological mechanisms driving insect outbreak dynamics
Monitoreo de la degradación de bosques nativos desde el espacio=> implementación de una estrategia territorial para su recuperación
Remote sensing EBV for assessing the spatial distribution and intensity of insect outbreaks in broadleaf Nothofagus forests.
“Contrafuertes Cordilleranos”. Desarrollo de un plan maestro para la conservación del ecosistema precordillerano de Santiago. Región Metropolitana, Chile"

Review (1)

50 years of water extraction in the Pampa del Tamarugal basin: Can Prosopis tamarugo trees survive in the hyper-arid Atacama Desert (Northern Chile)?
29
Roberto Chávez

Profesor adjunto

Instituto de Geografía

Pontificia Universidad Católica de Valparaíso

Valparaiso, Chile

4
Álvaro González

Profesor Asistente

Instituto de Ciencias de la Tierra

Universidad Austral de Chile

Valdivia, Chile

3
Ariel Muñoz

Profesor Adjunto

Instituto de Geografía

PONTIFICIA UNIVERSIDAD CATOLICA DE VALPARAISO

Valparaíso, Chile

3
Sergio Estay

Auxiliar Professor

Instituto de Ciencias Ambientales y Evolutivas

Universidad Austral de Chile

Valdivia, Chile

3
Tamara Gorena

Académico

Silvicultura

Universidad de Concepción

Concepción, Chile

3
Duncan Christie

Profesor Asociado

Conservación Biodiversidad y Territorio

UNIVERSIDAD AUSTRAL DE CHILE

Valdivia, Chile

2
Mauricio Ortiz

Director

Agronomia

Centro de Estudios Avanzados en Fruticultura

Rengo, Chile

2
Pilar Barria

Académica

Facultad de Ciencias Forestales y Conservación de la Naturaleza

Universidad de Chile

santiago, Chile

2
Alvaro Gutierrez

Profesor asistente

UNIVERSIDAD DE CHILE

Santiago, Chile

1
Fabrice Lambert

Profesor Asociado

Geografía

Pontificia Universidad Católica de Chile

Santiago, Chile

1
Moisés Rojas

Asistente de Investigación

Facultad de Ciencias Forestales y Recursos Naturales

Universidad Austral de Chile

Valdivia, Chile

1
Camila Alvarez

Associate Researcher

U. de Chile - Facultad de Ciencias Físicas y Matemáticas

Centro de Ciencia del Clima y la Resiliencia

Santiago, Chile

1
Carlos Le Quesne

Académico

Facultad de Ciencias Forestales y Recursos Naturales

UNIVERSIDAD AUSTRAL DE CHILE

Valdivia, Chile

1
Laura Gallardo

Full Professor

Geofísica

Universidad de Chile

Santiago, Chile

1
Laura Gallardo

Profesora Titular

Geofísica

Universidad de Chile

Santiago, Chile

1
Antonio Lara

UNIVERSIDAD AUSTRAL DE CHILE

valdivia, Chile

1
Eugenia Gayo

Academic

Geografía

Universidad de Chile

Santiago, Chile

1
Pablo Sarricolea

Profesor Asociado

Geografía

Universidad de Chile

Santiago, Chile

1
Manuel Prieto

Profesor Titular

Ciencias Históricas y Geográficas

Universidad de Tarapacá

Arica, Chile

1
Matías Calderón

Profesor Asistente A

Ciencias Sociales

Universidad de Tarapacá

Iquique, Chile

1
Luis Cifuentes

Associate Professor

Industrial & Systems Engineering

PUC- INGENIERIA INDUSTRIAL Y DE SISTEMAS

Santiago, Chile

1
Francisco de la Barrera

Profesor asociado

Planificación Territorial y Sistemas Urbanos

Universidad de Concepción

Concepción, Chile

1
Ignacio Núñez

PhD Candidate

Pontificia Universidad Católica de Chile

Santiago, Chile

1
Oliver Meseguer

Profesor Asociado

Departamento de Ciencias Históricas y Geográficas

UNIVERSIDAD DE TARAPACA

Arica, Chile