{"id":1604,"date":"2024-10-17T12:18:38","date_gmt":"2024-10-17T15:18:38","guid":{"rendered":"https:\/\/iai.int\/documentacion-comprension-y-proyeccion-de-los-cambios-en-el-ciclo-hidrologico-de-la-cordillera-americana-sgp-cra-2047\/"},"modified":"2025-07-29T22:44:30","modified_gmt":"2025-07-30T03:44:30","slug":"documentacion-comprension-y-proyeccion-de-los-cambios-en-el-ciclo-hidrologico-de-la-cordillera-americana-sgp-cra-2047","status":"publish","type":"page","link":"https:\/\/iai.int\/en\/documentacion-comprension-y-proyeccion-de-los-cambios-en-el-ciclo-hidrologico-de-la-cordillera-americana-sgp-cra-2047\/","title":{"rendered":"Documenting, understanding and projecting changes in the hydrological cycle in the American cordillera (SGP-CRA 2047)"},"content":{"rendered":"\n<figure class=\"wp-block-image\"><img decoding=\"async\" src=\"https:\/\/iai.int\/admin\/site\/sites\/default\/files\/uploads\/2014\/03\/spg_cra2047.jpg\" alt=\"spg_cra2047\" class=\"wp-image-4474\"\/><\/figure>\n\n<p><em><strong>Imagen 1:<\/strong>\u00a0Nothofagus pumilio forest devastated by fire in Estancia Canig\u00f3, Patagonia cra2047-first-science-meetingParticipants in the first science meeting of the SGP-CRA, Uspallata Argentina, April 21-25, 2013&#13;\n<strong>Imagen 2:<\/strong>\u00a0This image shows a millennial-aged, drought-stressed, Austrocedrus chilensis in the northern Patagonian Andes&#13;\nVillalba et al., Nat Geosci., 5, (11), 793-798&#13;\n<strong>Imagen 3:<\/strong>\u00a0Participants in the first science meeting of the SGP-CRA, Uspallata Argentina, April 21-25, 2013<\/em><\/p>\n\n<h3 class=\"wp-block-heading\">Project information<\/h3>\n\n<p><strong>Principal investigator:<\/strong><br\/><em>Brian H. Luckman\u00a0<\/em>(<a href=\"mailto:luckman@uwo.ca\">luckman@uwo.ca<\/a>)<br\/>Department of Geography, University of Western Ontario, Canad\u00e1.<\/p>\n\n<p><div class=\"one-third first\"><strong>List of published papers:<\/strong><\/div><\/p>\n\n<p><a href=\"http:\/\/www.citeulike.org\/user\/IAI\/tag\/cra2047\" target=\"_blank\" rel=\"noreferrer noopener\">http:\/\/www.citeulike.org\/user\/IAI\/tag\/cra2047<\/a><\/p>\n\n<p>This project follows the research started in\u00a0<a href=\"http:\/\/iai.int\/en\/meetings\/detail\/crn2047\" target=\"_blank\" rel=\"noopener\">CRN 2047, with the same title.<\/a><\/p>\n\n<p><a href=\"https:\/\/iai.int\/es\/meetings\/detail\/documenting-understanding-and-projecting-changes-in-the-hydrological-cycle-in-the-american-cordillera-sgp-cra-2047#summary\">Executive summary<\/a>\u00a0<a href=\"https:\/\/iai.int\/es\/meetings\/detail\/documenting-understanding-and-projecting-changes-in-the-hydrological-cycle-in-the-american-cordillera-sgp-cra-2047#investigadores\">Investigators<\/a>\u00a0<a href=\"https:\/\/iai.int\/es\/meetings\/detail\/documenting-understanding-and-projecting-changes-in-the-hydrological-cycle-in-the-american-cordillera-sgp-cra-2047#students\">Students<\/a><\/p>\n\n<h3 class=\"wp-block-heading\" id=\"summary\">Executive summary<\/h3>\n\n<p>Fresh water is an increasingly scarce resource in the warmer, more crowded world resulting from ongoing global changes. Mountain regions are the source of much of the water that sustains adjacent arid lowland communities in the Americas. They also provide good high resolution proxy archives that document long records of hydroclimate variability and the significant interrelationships between precipitation, runoff and the climatic variables that control these patterns over time. The project examines past and current changes in hydroclimate, snowpack and glaciers based on selected case studies from the American cordillera in western Canada, Mexico, the Altiplano and Southern South America using tree-ring data, precipitation and streamflow records, glacier studies and basin-wide hydrological balances. It investigates the causes, nature and range of hydroclimate variability from centennial to annual timescales, illustrates the impacts of these changes on society, and explores the implications of these changes for future water management in the adjacent lowlands.<br\/><br\/><\/p>\n\n<p><strong>Goals<\/strong><br\/>Examine and develop contemporary and proxy climate and runoff data and their links with the dominant causes of climate and streamflow variability (ENSO, PDO, AAO, etc.) over the last ca. 300 years and assess whether these instrumental series are representative of climate and streamflow variability over the longer interval<\/p>\n\n<p>Document and model mass loss from glaciers and their contributions to streamflow in selected areas<br\/>Assess modelled and projected future changes in precipitation and streamflow to test methodologies for quantitative assessments of climate-driven environmental impacts over the next 50-100 years<br\/><\/p>\n\n<p>In conjunction with social scientists and water resource managers, assess the impact of these changes on economic and social activities and their implications for future water management scenarios, policies and institutional frameworks.<\/p>\n\n<p><strong>Activities and results<\/strong><br\/>Scientific activities include the assembly of databases for streamflow, climate records, glacier fluctuations and mass balances in the target regions; selected monitoring projects; development of tree-ring chronologies and climate reconstructions of hydroclimate variables (precipitation, PDSI, streamflow, etc); training courses; publications and outreach activities.<\/p>\n\n<p>Significant results include a drought reconstruction (Palmer Drought Severity Index, PDSI) for central Mexico (771-2008), a precipitation reconstruction for the Bolivian Altiplano (1226-2009), annual regional snowpack reconstruction for the Andes between 30-37\u00b0S (1150-2010), and 300 year-long reconstructions for four major rivers draining from the Southern Andes. We have also reconstructed the Antarctic Oscillation (AAO or Southern Annular Mode) from 1409 to 2006.<br\/><br\/><\/p>\n\n<h3 class=\"wp-block-heading\" id=\"investigadores\">Principal investigator and lead agency<\/h3>\n\n<p>Brian H. Luckman (<a href=\"mailto:luckman@uwo.ca\">luckman@uwo.ca<\/a>)<br\/>Department of Geography, University of Western Ontario, Canad\u00e1<\/p>\n\n<p><strong>Co-investigators<\/strong><br\/>Jose Villanueva-Diaz (INIFAP, M\u00e9xico)<br\/>Ricardo Villalba (IANIGLA, Argentina)<br\/>Antonio Lara (Instituto de Silvicultura, Universidad Austral de Chile)<br\/>Juan Carlos Aravena (CEQUA, Chile)<br\/>James McPhee (Universidad de Chile)<br\/>y 14 Co-PIs<\/p>\n\n<h3 class=\"wp-block-heading\" id=\"students\">Students<\/h3>\n\n<p><em>Angela Bustos<\/em>, doctorado, Universidad Austral de Chile, Chile.<br\/><em>Claudia Guerrido<\/em>, doctorado, Universidad Austral de Chile, Chile.<br\/><em>Constanza Becerra<\/em>, maestr\u00eda, Universidad Austral de Chile, Chile.<br\/><em>Daniela Rodriguez<\/em>, grado, Universidad Austral de Chile, Chile.<br\/><em>Diego Aliste<\/em>, grado, Universidad Austral de Chile, Chile.<br\/><em>Gabriel Cardoza<\/em>, maestr\u00eda, Universidad Aut\u00f3noma de Nuevo Le\u00f3n, M\u00e9xico.<br\/><em>Karla Leal<\/em>, grado, Universidad Austral de Chile, Chile.<br\/><em>Lorenzo Palma<\/em>, maestr\u00eda, Universidad Nacional Aut\u00f3noma de M\u00e9xico,<br\/><em>Marcos Cortes<\/em>, doctorado, Universidad Austral de Chile, Chile.<br\/><em>Marcos Raul Radins<\/em>, maestr\u00eda, IANIGLA-CONICET, Argentina.<br\/><em>Mario Romero<\/em>, doctorado, Universidad Austral de Chile, Chile.<br\/><em>Mauricio Montriel<\/em>, maestr\u00eda, Universidad Austral de Chile, Chile.<br\/><em>Mauro Britos<\/em>, maestr\u00eda, IANIGLA-CONICET, Argentina.<br\/><em>Nayeli Cortes-barrera<\/em>, maestr\u00eda, Universidad Aut\u00f3noma de Tlaxcala, M\u00e9xico.<br\/><em>Omar Palacios<\/em>, maestr\u00eda, Universidad Aut\u00f3noma de Nuevo Le\u00f3n, M\u00e9xico.<br\/><em>Oscar Concha<\/em>, grado, Universidad Austral de Chile, Chile.<br\/><em>Pia Cardenas<\/em>, grado, Universidad Austral de Chile, Chile.<br\/><em>Prisma Ruiz<\/em>, grado, Universidad Aut\u00f3noma Metropolitana, M\u00e9xico.<br\/><em>Ren\u00e9 Reyes<\/em>, doctorado, Agrupaci\u00f3n de Ingenieros Forestales por el Bosque Nativo, Chile.<br\/><em>Teodoro<\/em>, doctorado, Universidad Nacional Aut\u00f3noma de M\u00e9xico, M\u00e9xico.<br\/><em>Yasna Salazar<\/em>, grado, Universidad Austral de Chile, Chile.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Imagen 1:\u00a0Nothofagus pumilio forest devastated by fire in Estancia Canig\u00f3, Patagonia cra2047-first-science-meetingParticipants in the first science meeting of the SGP-CRA, Uspallata Argentina, April 21-25, 2013&#13; Imagen 2:\u00a0This image shows a millennial-aged, drought-stressed, Austrocedrus chilensis in the northern Patagonian Andes&#13; Villalba et al., Nat Geosci., 5, (11), 793-798&#13; Imagen 3:\u00a0Participants in the first science meeting of [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"parent":0,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"_acf_changed":false,"_uag_custom_page_level_css":"","footnotes":""},"class_list":["post-1604","page","type-page","status-publish","hentry"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.3 - 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