Fernando Umaña
International Trademark Association
8 Papers
45 Citations
Fernando Umaña is an academic researcher from International Trademark Association. The author has contributed to research in topics: Rangeland & Normalized Difference Vegetation Index. The author has an hindex of 3, co-authored 7 publications.
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Papers
•Journal Article
Distribución natural de Nothofagus alpina y Nothofagus obliqua (nothofagaceae) en Argentina, dos especies de primera importancia forestal de los bosques templados norpatagónicos
Yamila Sabatier,María Marta Azpilicueta,Paula Marchelli,Paula Marchelli,Marcelo González-Peñalba,Liliana Lozano,Leandro García,Abel Martínez,Leonardo A. Gallo,Fernando Umaña,Donaldo Bran,Mario J. Pastorino,Mario J. Pastorino +12 more
TL;DR: In this article, the distribution of Rauli and Roble Pellin in Argentina was mapped based on digital information of previous works which was verified by local qualified informants, ground control check and visual interpretation of images freely provided by Google Earth.
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The MARAS dataset, vegetation and soil characteristics of dryland rangelands across Patagonia.
Gabriel Oliva,Gabriel Oliva,Eder dos Santos,Osiris Sofía,Fernando Umaña,Virginia Massara,Guillermo Carlos Garcia Martinez,Cecilia A. Caruso,German Cariac,Daniela Carola Echevarria,Anabella Fantozzi,Lucas Ramiro Butti,Donaldo Bran,Juan José Gaitán,Daniela Ferrante,Daniela Ferrante,Paula Natalia Paredes,Paula Natalia Paredes,Erwin Domínguez,Fernando T. Maestre +19 more
TL;DR: The MARAS dataset provides a baseline from which to evaluate the impacts of climate change and changes in land use intensity in Patagonian ecosystems, which collectively constitute one of the world´s largest rangeland areas.
Evaluación de pastizales patagónicos con imágenes de satélites y de vehículos aéreos no tripulados
Marcos Horacio Easdale,Fernando Umaña,Fernando Raffo,Clara Maria Farina,Octavio Augusto Bruzzone +4 more
- 23 Sep 2019
TL;DR: In this article, the spatial resolution of an unsupervised classification of rangeland environments using SPOT 7 satellite images and images captured by an optical sensor mounted on an UAV were compared.
Una herramienta para monitorear sequías en regiones áridas y semiáridas de Patagonia Norte
Marcos Horacio Easdale,Dardo Ruben Lopez,Emilio Bianchi,Emilio Bianchi,O. Bruzone,O. Bruzone,S. E. Villagra,Guillermo Lorenzo Siffredi,J. J. Gaitán,Fernando Umaña,Patricio Oricchio +10 more
- 01 Aug 2012
TL;DR: La variabilidad ambiental es una caracteristica de regiones pastoriles aridas and semiaridas, siendo la sequia uno de los principales problemas en sistemas as discussed by the authors.
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Relationship between NDVI of Patches and Cover Area of Grasses, Shrubs and Bare Soil Components of a Semi-Arid Steppe from North-West Patagonia, Argentina
Clara Maria Farina,Valeria Aramayo,Daiana Perri,Valeria Martín Albarracín,Fernando Umaña,G. Bruzzone,Marcos Horacio Easdale +6 more
- 06 Feb 2023
TL;DR: In this article , the authors conducted a field survey in the period 2015-2017 to analyze the relationship between monthly values of Normalized Difference Vegetation Index (NDVI) of two grasses, two shrub species and bare soil, weighted by their cover area at a patch level, and the concomitant patch NDVI records.