A5006114530- Cryospheric studies and observations
- Winter Sports Injuries and Performance
- Polar Research and Ecology
- Arctic and Antarctic ice dynamics
- Environmental and Cultural Studies in Latin America and Beyond
- Landslides and related hazards
- Geology and Paleoclimatology Research
- Marine and coastal ecosystems
- Climate change and permafrost
- Satellite Image Processing and Photogrammetry
- Synthetic Aperture Radar (SAR) Applications and Techniques
- 3D Surveying and Cultural Heritage
- Geological and Tectonic Studies in Latin America
- Water Quality Monitoring Technologies
- Plant Pathogens and Fungal Diseases
- Environmental and Ecological Studies
- Remote Sensing and LiDAR Applications
- Marine and fisheries research
- Literary and Cultural Studies
- Public Health and Environmental Issues
- Adventure Sports and Sensation Seeking
- Offshore Engineering and Technologies
- Marine and coastal plant biology
- Powdery Mildew Fungal Diseases
- Stroke Rehabilitation and Recovery
Universidad de Magallanes
1998-2024
Amada (Japan)
2018
Universidad de las Fuerzas Armadas ESPE
2016-2018
Pontificia Universidad Javeriana
2016
Centro de Estudios Científicos
2010-2012
Icesi University
2011
Universidad El Bosque
2006
Since several years most glaciers all over the world are showing increasing retreat, thinning and acceleration. To understand model phenomena as well to predict future development of ice fields glaciers, glaciologists need different data that describe condition. Therein, an important issue is determination velocity fields. These can be derived using remote sensing terrestrial methods. In paper we introduce both a image sequence satellite image-based technique for analysis motion behaviour...
Glaciological data collected at Patriot Hills, Antarctica (80°18'S, 81°22'W), are used to assess the local mass balance of ice sheet. The were during two field campaigns conducted by Instituto Antartico Chileno in January and November 1995. Measurements included surveying stakes, thickness derived from discrete radar soundings with a ground-based high-frequency impulse system. Ablation occurred on bare-ice base maximum value 7g cm −2 −1 . Net accumulation was detected away mountains, over...
Surface waters are a fundamental resource. They fulfil key function in global biogeochemical cycles and core to our water, food energy security. The rapidly increasing rate of data collection from different Earth observation (EO) missions suitable for observing water bodies has promoted satellite remote sensing (RS) as more widely recognised source information on number indicators quality ecosystem condition at local scales. In parallel, advances optical sensors support new detailed...
Natural disasters like landslides or floods can be significant dangers to life, nature and infrastructure in the affected areas. Especially regions with permanent potential risks of such weather-induced phenomena, an effective monitoring system reduce risk major damages. In case Punta Arenas (Southern Chile) irregularly block dam nearby river Las Minas thus cause catastrophic Chilean city. To prevent landslide triggered hazards, paper focuses on photogrammetric detection analysis using...
In this paper, we present a brief overview of the state art in radar systems for ice and snow measurements. Emphasis is given to instrumentation developed at University Kansas multi-band data retrieval frequencies ranging from 14 MHz 38 GHz, which operated onboard manned unmanned aircraft. The information collected with these used estimate parameters such as thickness, surface bedrock topography, cover thickness on sea ice, annual accumulation. We give summary recent field programs...
To determine the biological and physical mechanisms between Lange glacier its pro-glacier marine system located in Almirantazgo bay, King George Island, Antarctica, specific variables were determined through remote sensing approaches shown this work. These preliminary results will allow relating dynamics of both systems, glacier, ecosystem. The information for estimation surface flux velocity was derived Radar satellite images (Sentinel-1) by means offset tracking, bathymetry from a...
An investigation of the potential impact on Antarctic by 2008 eruption Chaitén volcano, located in southern Chile (42°49â58âS - 72°38â45âW), has been conducted. Major elements content fresh snowfall was monitored ICP-MS analysis during years 2008, at B. O'Higgins Chilean base. Its major chemical components and lead isotopic ratios were compared with composition ashfall collected eruption. Results from indicate a significant change starting August four months after volcano increase...
This work presents some ethnographic reflections from a research project focused on the insertion process when joining guerrilla organization in Colombia as ritual process. study took place at School of Combatants National Liberation Army - ELN. As result, authors earned their B.A. degree Anthropology with merit University 2001. Twelve years later, this article is presented reflecting upon two non-verbal communication forms expression: one side, body kinesics under armed conflict...
This paper presents a multi-temporal photogrammetric model of analysis to monitoring the Rio de Las Minas basin, located near Punta Arenas city in southern Chile, this basin is constantly danger, for landslide risks that can block and dam river, as result probably catastrophic flood. To prevent such landslide-triggered hazards, focuses on detection using aerial images reliably detect major geomorphological changes. As example, with datasets from 2014 2015 river Minas, two points clouds were...
Abstract. Surface waters are a fundamental resource. They fulfil key function in global biogeochemical cycles and core to our water, food energy security. The rapidly increasing rate of data collection from different Earth observation (EO) missions suitable for observing water bodies has promoted satellite remote sensing (RS) as more widely recognised source information on number indicators quality ecosystem condition at local scales. In parallel, advances optical sensors support new...
Abstract We present a newly developed high-resolution frequency-modulated continuous-wave (FMCW) radar system for sounding the sub-ice topography. The system, working in frequency range from 200 to 400 MHz, was measure thickness and internal layers cold ice with resolution better than 1 m. This has potential accumulation rates, an important input improved knowledge of mass balance polar sheets. First measurements test, calibration optimization new sounder were made December 2005 near...
I n the western Antarctic Peninsula one of areas highest warming in southern hemisphere has been identified. To characterize this tendency, we selected Lange Glacier (LG) on King George Island, to evaluate: 1) LG surface temperature and dynamics using stakes with data loggers; 2) submerged thickness sea parameters through bathymetry (BT) 29 CTD stations front LG; 3) glacier (GF) BT a Digital Elevation Model (DEM); 4) change GF position DEM historical width; 5) Calving flux (QC). Our findings...
Powdery mildew (PM) caused by the fungus Sphaerotheca pannosa var. rosae is most widespread and economically important disease affecting commercial sector of rose production in Ecuador. Its incidence influenced environmental agents aerial parts rose: stems, leaves bottoms. The present study investigates aqueous alcoholic botanical extracts Ocotea quixos Piper carpunya as alternatives to agrochemicals. For this reason, an vitro evaluation has been developed for antifungal activity leaf these...
The present work is oriented to analyze the backscattering signal generated by X-band, when it interacting with sea ice, located in vicinity of Fildes Bay, King George Island (Southland Shetland Islands), from Antarctic. Radar images captured TerraSAR-X satellite StripMap mode were used, whose emitted was polarized Dual (HH-VV). processed using software Polsar-Pro, objective establishing Polarimetric Decomposition and Shannon Entropy, order determine predominant mechanisms dispersion...
We present calving flux, rate, frontal retreat and volume change rate results in Lange Glacier from 2015 to 2017, including also velocity calculations 2015, 2017 2018. The peak velocities at glacier front were between 1.0 1.5 [md <sup xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">-1</sup> ] near the center line with a maximum of 100 [m]. presents almost no during period analyzed average ice discharge is 0.026 [km...
A network consisting of six cameras was set up on both sides Lange Glacier King George Island, Antarctica, for a period two years to monitor changes in the glacier's motion behaviour. The were observing spatio-temporal glacier surface velocity vector fields as well position front. Velocity field information obtained from image sequences by applying subpixel accuracy photogrammetric sequence analysis techniques. Georeferencing superordinate coordinate system performed via integrated...
<p>Las ciencias sociales históricamente han mantenido una particular relación de veracidad y focalización sus problemáticas investigación con los documentos escritos. De igual manera a lo largo del siglo pasado, la escritura dominaría como código necesario al momento socializar difundir trabajos. Actualmente visualidad propia cultura mass-mediática, parece envolver su turno canales expresión, así diversos enfoques en estas disciplinas. La progresiva sustitución palabra (hablada o...
This investigation presents data from working with Global Positioning System (GPS) to complement the work of Radio Echo Sounding January 2009 at area next Chilean Base Station Bernardo O'Higgins and Jakenau Mountain north Antarctic peninsula (63° 19' S, 57° 51' W).The main objective was georeference information onto crevasses zones identified by Eco Sounding, using two topographic GPS equipment.The measured points correspond a grid draw on that is normally used for Twin Otter aircraft...
moderadores realizaron una breve presentación del estado arte de la temática para posteriormente presentar a los oradores sesión, cuales fueron: El Dr. Patricio Moreno con su denominada "Respuesta biota patagónica y el sistema glacial cambios paleoclimáticos ocurridos desde último máximo