Results 91 to 100 of about 1,111,202 (210)

Detection of Erosion and Progradation in the Colombian Atrato River Delta by Using Sentinel-1 Synthetic Aperture Radar Data

, 2023
This paper presents a methodology to detect the erosion and progradation effects in the Atrato river delta, located in the Gulf of Urabá in Colombia using SAR (Synthetic Aperture Radar) data. Other authors have studied this area by using optical images, encountering difficulties given the persistent presence of clouds in this region.
Rubén Darío Vásquez-Salazar, Ahmed Alejandro Cardona-Mesa, Juan Valdés-Quintero, César Anibal Olmos-Severiche, Luis Gómez, Carlos M. Travieso-González, Jean Pierre Díaz-Paz, Jorge E. Espinosa-Oviedo, Lorena Diez-Rendón, Andrés F. Garavito-González, Esteban Vásquez-Cano   +10 more
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Aspectos taxonómicos de Cetopsorhamdia boquillae y C. nasus (Pisces, Heptapteridae), con anotaciones sobre su ecología en la cuenca alta de los ríos Magdalena y Cauca, Colombia [PDF]

, 2006
A taxonomic analysis of Cetopsorhamdia boquillae and Cetopsorhamdia nasus from the Magdalena and Cauca river basin in Colombia is reported here based on fresh topotypical materials.
Román-Valencia, C., Ruiz-C., R. I.
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Collection records of the project "mosquitoes of middle America." 12. Colombia (COA, COB, COL, COM). [PDF]

, 1978
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The seawater neodymium and lead isotope record of the final stages of Central American Seaway closure [PDF]

, 2014
Key Points: Seawater Nd and Pb isotope records for the Pliocene Caribbean and EEP Caribbean Nd isotope composition became more UNADW-like during the Pliocene Short term changes support link between CAS closure and strength of AMOC The ...
Frank, Martin, Groeneveld, Jeroen, Martin, Ellen E., Newkirk, Derrick R., Osborne, Anne H., Tiedemann, Ralf   +5 more
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Two new trans-Andean species of Imparfinis Eigenmann & Norris, 1900 (Siluriformes: Heptapteridae) from Colombia

Neotropical Ichthyology
Two new species of Imparfinis are described from the trans-Andean region of Colombia. Imparfinis timana is diagnosed by having longer anal fin base (12.4-15.5% in SL), in combination with long adipose fin (24.6-31.3% in SL), 5-6 gill rakers on the first ...
Armando Ortega-Lara, Nadia Milani, Carlos DoNascimiento, Francisco Villa-Navarro, Javier Alejandro Maldonado-Ocampo   +4 more
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Tendencias de la investigación en Ingeniería Ambiental [PDF]

, 2008
Esta obra incluye las memorias del Simposio “Tendencias de la Investigación en Ingeniería Ambiental”, organizado por el Grupo de Investigaciones y Mediciones Ambientales (GEMA), realizado en la Universidad de Medellín en agosto de 2007.
Arias Muñoz, Carolina, Arroyave M., Carlos E., Botero, Liliana R., Casas Z., Juan C., Echeverri Londoño, Carlos Alberto, Feijoo, Gumersindo, Gernjak, Wolfgang, Hincapié, Joaquín, Hincapié, Margarita, Jaramillo, María A., Jiménez, José F., Lema, Juan Manuel, Lema, Álvaro, López Pérez, John Fredy, López Sánchez, Idalia Jacqueline, Malato, Sixto, Maldonado, Manuel Ignacio, Montoya Jaramillo, Luis Javier, Oller, Isabel, Ortiz R., Estefanía, Ossa R., Óscar O., Palacio, Carlos, Peláez J., Carlos A., Peña Marín, Luz Ángela, Peñuela M., Gustavo A., Peñuela Mesa, Gustavo Antonio, Puerto López, Boris, Quintero Díaz, Juan Carlos, Rendón, Ángela M., Saldarriaga F., Tatiana, Sánchez P., Nazly E., Toro Botero, Francisco Mauricio, Valencia Londoño, Diana Elizabeth, Vergara Vargas, Alba Miriam   +33 more
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Hyphessobrycon ocasoensis sp. n. (Teleostei, Characidae) una nueva especie para el Alto Cauca, Colombia [PDF]

, 2008
Hyphessobrycon ocasoensis n. sp. (Teleostei, Characidae) a new species from the Alto Cauca, Colombia Hyphessobrycon ocasoensis n. sp. (Characiformes, Characidae) from heterorhabdus group (Gery, 1977) is described from the upper Cauca River in Colombia.
García-Alzate, C. A., Román-Valencia, C.   +1 more
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WATER LEVEL RECONSTRUCTION OF THE ATRATO RIVER WITH TREE RINGS OF PRIORIA COPAIFERA

, 2011
dendrochronology provides hydroclimatic proxy records in many regions with scarcity of instrumental records. In this paper, we reconstructed the Low Atrato River´s water levels and assessed the effect of the ENSO phenomenon in the river level over the past 150 years using the tree rings of Prioria copaifera tree (Cativo).
HERRERA, DAVID ANDRÉS, DEL VALLE, JORGE IGNACIO   +1 more
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Aquatic insects associated with macrophytes in wetlands of the middle basin of Atrato River, Chocó - Colombia

Revista U.D.C.A Actualidad & Divulgación Científica
Aquatic macrophytes play an important role in lentic systems, since they constitute the particular habitat of several groups of aquatic insects and play a fundamental role in structuring their communities. The objective of this study was to contribute to the knowledge of the aquatic entomofauna associated with macrophytes in wetlands of the middle ...
Zuleyma Mosquera-Murillo, Karen Everni Córdoba-Aragón, Mairin Minerva Mosquera-Mosquera, Sandra Patricia Sanchez, Leider Palacios-Palacios   +4 more
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On the freshwater shells of Tasmania [PDF]

, 1875
No attempt has yet been made to arrange the freshwater shells of Tasmania. The land shells have been carefully catalogued by Mr. Legrand, so that little remains to be desired in that department of our island fauna.
Tenison Woods, Julian Edmund
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