A5084755388- Cryospheric studies and observations
- Climate change and permafrost
- Environmental and Cultural Studies in Latin America and Beyond
- Climate variability and models
- Polar Research and Ecology
- Arctic and Antarctic ice dynamics
- Landslides and related hazards
- Hydrology and Watershed Management Studies
- Winter Sports Injuries and Performance
- Geology and Paleoclimatology Research
- Precipitation Measurement and Analysis
- Meteorological Phenomena and Simulations
- Freshwater macroinvertebrate diversity and ecology
- Underwater Vehicles and Communication Systems
- Mycorrhizal Fungi and Plant Interactions
- Delphi Technique in Research
- Water Quality Monitoring Technologies
- Remote Sensing in Agriculture
- Water resources management and optimization
- Plant Pathogens and Fungal Diseases
- Marine Bivalve and Aquaculture Studies
- Land Use and Ecosystem Services
- Ocean Acidification Effects and Responses
- Soil erosion and sediment transport
- Environmental Monitoring and Data Management
Universidad Nacional Santiago Antúnez de Mayolo
2014-2025
Research Center on Earth Sciences
2024
Instituto Nacional de Investigación en Glaciares y Ecosistemas de Montaña
2017-2022
Austral University of Chile
2022
Universidad Nacional Agraria La Molina
2021
Universitat de València
2016-2021
Abstract Because the glacier snowline is easy to identify on optical satellite images and because in certain conditions it can be used as an indicator of equilibrium line, may a relevant parameter for study relationships between climate glaciers. Although several studies have shown that altitude (SLA) at end hydrological year good equilibrium-line (ELA) mid-latitude glaciers, such relationship remains conjectural tropical Indeed, unlike mid-latitudes, result distinct seasonality...
Abstract Runoff from glacierised Andean river basins is essential for sustaining the livelihoods of millions people. By running a high-resolution climate model over two most regions Peru we unravel past climatic trends in precipitation and temperature. Future changes are determined an ensemble statistically downscaled global models. Projections under high emissions scenario suggest substantial increases temperature 3.6 °C 4.1 regions, accompanied by 12% increase late 21st century. Crucially,...
Alpine river biodiversity is under threat as climate change driving extensive glacier retreat worldwide, altering aquatic habitats and restructuring biotic communities. However, with the exception of macroinvertebrates, responses groups to deglaciation have received little attention, particularly in tropical ecosystems where species may respond differently owing additional pressures such distinct wet dry seasons, limited snowmelt extreme high altitude thus lower oxygen availability....
Abstract Peruvian glaciers are important contributors to dry season runoff for agriculture and hydropower, but they at risk of disappearing due climate change. We applied a physically based, energy balance melt model five on‐glacier sites within the Cordilleras Blanca Vilcanota. Net shortwave radiation dominates balance, despite this flux being higher in season, rates lower losses from net longwave latent heat flux. The sensible is relatively small contributor energy. At three wet snowpack...
In recent decades, remote sensing has become a powerful tool for continuously monitoring glacier dynamics in areas, enabling the identification of significant spatiotemporal changes due to its capacity provide multitemporal information at regional and global scales. this study, Landsat satellite images (1989–2020) were used quantify retreat ice cap King George Island (KGI), located Antarctic Peninsula, evaluate teleconnections El Niño – Southern Oscillation - ENSO (ONI SOI indices) with...
Abstract Microcontrollers such as Arduino have been increasingly used by researchers to create and customise their own tools. In geography, microcontrollers are frequently design data loggers for monitoring purposes. We reviewed the use of in physical geography unravel opportunities challenges using off‐the‐shelf tools research. conducted a literature review, putting retrieved information perspective with our experimental work mountainous riverine landscapes Chile Peru. show that low cost...
<p>Precipitation, snow and ice melt from Andean river basins provide a crucial water source to mountain downstream communities equally. Precipitation temperature changes due global climate change are likely affect agriculture, hydropower generation hazard risks, but poorly constrained, especially in future projections.</p><p>Here we focus on two heavily glacierised regions of the Peruvian Andes, Cordillera Blanca, Vilcanota-Urubamba, assess projected...
El cambio climático ha contribuido a un retroceso rápido de los glaciares en la Península Antártica Occidental, presentando implicaciones potenciales para ecosistemas marinos, especialmente las comunidades fitoplancton. En el presente trabajo, se examinó influencia cercanía frentes composición fitoplancton Bahía Almirantazgo, Antártida, durante verano austral 2020. Se establecieron 12 estaciones distribuidas diferentes distancias del frente glaciar recolectar muestras agua 3 profundidades...
Ongoing climate change threatens the biodiversity of glacier-fed river ecosystems worldwide through shifts in water availability and timing, temperature, chemistry, channel stability. However, tropical rivers have received little attention compared to those temperate Arctic biomes, despite their unique potentially responding differently due additional stress from higher altitude locations thus lower oxygen availability, diurnal freeze-thaw cycles, annual monsoon rainfall disturbances. This...
DNA barcoding is a powerful method for the identification of lichenized fungi groups which diversity already well-represented in nucleotide databases, and an accurate, robust taxonomy has been established. However, effectiveness expected to be limited understudied taxa or regions. One such region Antarctica, where, despite importance lichens identification, their genetic far from characterized. The aim this exploratory study was survey King George Island using fungal barcode marker as...
Abstract. We present a representative set of data interpreted ice thickness and surface elevation the ablation area Artesonraju glacier between 2012 2020. The was obtained by means Ground Penetrating Radar (GPR), while automated total stations mass balance stakes. results from GPR show maximum depth 235 ± 18 m decreasing mean ranging 134 in 2013 to 110 Additionally, we estimate change rate −4.2 3.2 yr−1 2014 2020 with alone, which is agreement same period. latter estimated more accurate...
In the tropical Andes of Peru very little is known about occurrence and extent mountain permafrost. Only recently systematic studies have been carried out on high elevation sites ranges (cordilleras). framework first pioneering studies, with objective to improve understanding characteristics permafrost rock glaciers, we analyze how in Peruvian correlated altitude 0 °C isotherm (ZIA). Climate change has generated an increase air temperature ZIA past decades. These changes could lead impact...
The Peruvian Andes contains the largest mass of glaciers in tropics and these have shown considerable decay over past 4 decades into present day. historic future runoff is tied to cryospheric changes region this could important consequences for water resources, given importance snow ice melt dry season runoff. To disentangle role cryosphere cycle tropical we run fully distributed, hourly glacier-hydrological model TOPKAPI-ETH, both (from 1987) upper Rio Santa catchment Cordillera Blanca....
Vegetation indices (VIs) calculated from spectral values have been widely used for monitoring the terrestrial biosphere. These serve as proxies determining certain biophysical parameters, useful vegetation. Due to its ease of application, Normalized Difference Index (NDVI) has a proxy various parameters. However, NDVI can only capture linear relationships between difference near infrared (NIR) and red bands with To address this limitation, kernel (kNDVI) was proposed reference optimal...
Del 03 al 15 de enero 2018 (verano austral), se realizó el crucero investigación ANTAR XXV, abarcando desde la isla Trinidad, por estrecho Bransfield, alrededor Elefante, hasta bahía Almirantazgo. Se efectuaron 14.970 mediciones superficiales que comprendieron: presión parcial CO2 para determinar los flujos en Bransfield y así como temperatura, salinidad, oxígeno disuelto, clorofila-a; además, determinaron las masas aguas transicionales Bellingshausen (TBW), Weddel (TWW) del mar Escocia....
Rainfall and temperature variables play an important role in understanding meteorology at global regional scales. However, the availability of meteorological information areas complex topography is difficult, as density weather stations often very low. In this study, we focused on improving existing satellite products for these areas, using Tropical Measuring Mission (TRMM) Global Precipitation Measurement (GPM) data rainfall Modern Era Retrospective Analysis Research Applications Version 2...
<p>Climate change generates significant impacts on high mountain regions, especially considering the sensitivity of tropical glaciers. However, information about rock glaciers are very scarce and there is limited research in this field Peru. Rock glacier concentrate mainly southern part Peru where 95% located. Here we present for first time an overview occurrence characteristics Peru.</p><p>The Cordilleras Huanzo Chila located ranges region Peru,...
Rock glaciers (RG) are one of the most important geomorphological features in Peruvian Andes. However, local characteristics RG have barely been studied or remain unknown. The aim this research was to characterize past and present conditions located Cordillera Volcanica southern Peru. For purpose, an inventory carried out modern regional mean air annual temperatures (MAATs) were calculated. We estimate water equivalent assess their importance as possible storage frozen for using empirical...