Now showing items 1-20 of 101

    • The 2017 coastal El Niño 

      Takahashi, Ken; Aliaga-Nestares, Vannia; Ávalos, Grinia; Bouchon, M.; Castro, A.; Cruzado, L.; Dewitte, B.; Gutiérrez, B.; Lavado-Casimiro, W.; Marengo, J.; Mosquera-Vásquez, K.; Quispe, Nelson

      (American Meteorological Society, 2018-08)
      Acceso abierto
      The original concept of El Niño consisted of anomalously high sea surface temperature and heavy rainfall along the arid northern coast of Peru (Carranza 1891; Carrillo 1893). The concept evolved into the El Niño–Southern ...
    • Accuracy assessment of SRTM v4 and ASTER GDEM v2 over the Altiplano watershed using ICESat/GLAS data 

      Satgé, F.; Bonnet, M.P; Timouk, F.; Calmant, S.; Pillco, R.; Molina, J.; Lavado-Casimiro, W.; Arsen, A.; Crétaux, J.F.; Garnier, J.

      (Taylor and Francis Ltd., 2015-01)
      Embargado
      The new Global Digital Elevation Model (GDEM v2) has been available since 17 October 2011. With a resolution of approximately 30 m, this model should provide more accurate information than the latest version of Shuttle ...
    • Amazon River dissolved load: temporal dynamics and annual budget from the Andes to the ocean 

      Moquet, J.S.; Guyot, J.L.; Crave, A.; Viers, J.; Filizola, N.; Martinez, J.-M.; Oliveira, T.C.; Sánchez, L.S.H.; Lagane, C.; Lavado-Casimiro, W.; Noriega, L.; Pombosa, R.

      (Springer Verlag, 2016-06)
      Embargado
      The aim of the present study is to estimate the export fluxes of major dissolved species at the scale of the Amazon basin, to identify the main parameters controlling their spatial distribution and to identify the role of ...
    • Assessing hydrological changes in a regulated river system over the last 90 years in Rimac Basin (Peru) 

      Vega-Jácome, Fiorella; Lavado-Casimiro, W.; Felipe-Obando, Oscar

      (Springer-Verlag Wien, 2018-04)
      Acceso abierto
      Hydrological changes were assessed considering possible changes in precipitation and regulation or hydraulic diversion projects developed in the basin since 1960s in terms of improving water supply of the Rimac River, which ...
    • Assessing multidecadal runoff (1970–2010) using regional hydrological modelling under data and water scarcity conditions in Peruvian Pacific catchment 

      Rau, P.; Bourrel, L.; Labat, D.; Ruelland, D.; Frappart, F.; Lavado-Casimiro, W.; Dewitte, v; Felipe-Obando, Oscar

      (John Wiley and Sons Ltd, 2019-01)
      Acceso abierto
      In a context of water scarcity in Peruvian Pacific catchments as a crucial issue for Peru, added to the paucity of data availability, we propose a methodology that provides new perspectives for freshwater availability ...
    • Assessment of climate change impacts on the hydrology of the Peruvian Amazon-Andes basin 

      Lavado-Casimiro, W.; Labat, D.; Guyot, J.L.; Ardoin-Bardin, S.

      (Wiley-Blackwell, 2011-11)
      Embargado
      In this article, we propose an investigation of the modifications of the hydrological response of two Peruvian Amazonas-Andes basins in relationship with the modifications of the precipitation and evapotranspiration rates ...
    • Assessment of ECMWF SEAS5 seasonal forecast performance over South America 

      Gubler, S.; Sedlmeier, K.; Bhend, J.; Ávalos, Grinia; Coelho, C.A.S.; Escajadillo, Y.; Jacques-Coper, M.; Martinez, R.; Schwierz, C.; De Skansi, M.; Spirig, C.

      (American Meteorological Society, 2020-03-11)
      Acceso abierto
      Seasonal predictions have a great socioeconomic potential if they are reliable and skillful. In this study, we assess the prediction performance of SEAS5, version 5 of the seasonal prediction system of the European Centre ...
    • Basin-scale analysis of rainfall and runoff in Peru (1969–2004): Pacific, Titicaca and Amazonas drainages 

      Lavado-Casimiro, W.; Ronchail, J.; Labat, D.; Espinoza, J.C.; Guyot, J.L.

      (Taylor and Francis Ltd., 2012-06)
      Embargado
      According to the Peruvian agricultural ministry, the Pacific watersheds where the great cities and intense farming are located only benefit from 1% of the available freshwater in Peru. Hence a thorough knowledge of the ...
    • Can artificial neural networks estimate potential evapotranspiration in Peruvian highlands? 

      Laqui, Wilber; Zubieta, Ricardo; Rau, Pedro; Mejía, Abel; Lavado-Casimiro, W.; Ingol, Eusebio

      ( John Wiley and Sons , 2019-09-26)
      Embargado
      Evapotranspiration (ETo) is one of the most important variables of the water cycle when water requirements for irrigation, water resource planning or hydrological applications are analyzed. In this context, models based ...
    • Change in strong Eastern Pacific El Niño events dynamics in the warming climate 

      Carréric, Aude; Dewitte, Boris; Cai, Wenju; Capotondi, Antonietta; Takahashi, Ken; Yeh, Sang-Wook; Wang, Guojian; Guémas, Virginie

      (Springer, 2019-11-09)
      Acceso restringido
      While there is evidence that ENSO activity will increase in association with the increased vertical stratification due to global warming, the underlying mechanisms remain unclear. Here we investigate this issue using the ...
    • Characteristics of Precipitating Storms in Glacierized Tropical Andean Cordilleras of Peru and Bolivia 

      Perry, L. B.; Seimon, Anton; Andrade, Marcos; Endries, J. L.; Yuter, S. E.; Velarde, Fernando; Arias, S.; Bonshoms, Marti; Burton, E.J.; Winkelmann, I. R.; Cooper, C.M.; Mamani, G.; Rado, M.; Montoya, N.; Quispe, Nelson

      (Taylor & Francis, 2016-06-01)
      Acceso restringido
      Precipitation variability in tropical high mountains is a fundamental yet poorly understood factor influencing local climatic expression and a variety of environmental processes, including glacier behavior and water ...
    • Chemical weathering and atmospheric/soil CO2 uptake in the Andean and Foreland Amazon basins 

      Moquet, J.S.; Crave, A.; Viers, J.; Seyler, P.; Armijos, E.; Bourrel, L.; Chavarri, E.; Lagane, C.; Laraque, A.; Lavado-Casimiro, W.; Pombosa, R.; Noriega, L.; Vera, A.; Guyot, J.L.

      (Elsevier B.V., 2011-08)
      Embargado
      This study is a geochemical investigation of the Andean and Foreland basins of the Amazon River at high spatial and time resolution, carried out within the framework of the HYBAM research program (Hydro-geodynamics of the ...
    • Climate diagnostics of the extreme floods in Peru during early 2017 

      Son, R.; Wang, S.-Y.S.; Tseng, W.-L.; Barreto Schuler, Christian; Becker, E.J.; Yoon, J.-H.

      (Springer, 2020)
      Acceso abierto
      From January through March 2017, a series of extreme precipitation events occurred in coastal Peru, causing severe floods with hundreds of human casualties and billions of dollars in economic losses. The extreme precipitation ...
    • Climate impacts of the El Niño–Southern Oscillation on South America 

      Cai, Wenju; McPhaden, Michael J.; Grimm, Alice M.; Rodrigues, Regina R.; Taschetto, Andréa S; Garreaud, René D.; Dewitte, Boris; Poveda, Germán; Ham, Yoo-Geun; Santoso, A.; Ng, Benjamin; Anderson, Weston; Wang, Guojian; Geng, Tao; Jo, Hyun-Su; Marengo, José A.; Alves, Lincoln M.; Osman, Marisol; Li, Shujun; Wu, L.; Karamperidou, Christina; Takahashi, Ken; Vera, Carolina

      (Nature Publishing Group, 2020-04-10)
      Embargado
      The climate of South America (SA) has long held an intimate connection with El Niño, historically describing anomalously warm sea-surface temperatures off the coastline of Peru. Indeed, throughout SA, precipitation and ...
    • Climate trends and variability in Ecuador (1966–2011) 

      Morán-Tejeda, E.; Bazo, Juan; López-Moreno, J.I.; Aguilar, E.; Azorín-Molina, C.; Sanchez‐Lorenzo, Arturo; Martínez, Rodney; Nieto, Juan J.; Mejía, R.; Martín‐Hernández, N.; Vicente-Serrano, S.M.

      (John Wiley and Sons Ltd, 2016-01-15)
      Acceso abierto
      This study detects climate trends and variability from precipitation and temperature observations in Ecuador and assesses their links to the El Niño Southern Oscillation (ENSO) for the period 1966–2011, using the El Niño ...
    • Climate variability and extreme drought in the upper Solimões River (western Amazon Basin): Understanding the exceptional 2010 drought 

      Espinoza, J.C.; Ronchail, J.; Guyot, J.L.; Junquas, v; Vauchel, P.; Lavado-Casimiro, W.; Drapeau, v; Pombosa, R.

      (Blackwell Publishing Ltd, 2011-07)
      Embargado
      This work provides an initial overview of climate features and their related hydrological impacts during the recent extreme droughts (1995, 1998, 2005 and 2010) in the upper Solimes River (western Amazon), using comprehensive ...
    • Climatology of extreme cold events in the central Peruvian Andes during austral summer: origin, types and teleconnections 

      Sulca, Juan; Vuille, Mathias; Roundy, Paul; Takahashi, Ken; Espinoza, Jhan‐Carlo; Silva, Yamina; Trasmonte, Grace; Zubieta, R.

      (Royal Meteorological Society, 2018-08-30)
      Acceso restringido
      The climatological and large‐scale characteristics of the extreme cold events (ECEs) in the central Peruvian Andes (Mantaro basin (MB)) during austral summer (January–March) are examined using reanalysis, gridded and in ...
    • A combined view on precipitation and temperature climatology and trends in the southern Andes of Peru 

      Imfeld, Noemi; Sedlmeier, Katrin; Gubler, Stefanie; Correa Marrou, Kris; Davila, Cristina P.; Huerta, Adrian; Lavado‐Casimiro, Waldo; Rohrer, Mario; Scherrer, Simon C.; Schwierz, Cornelia

      (John Wiley and Sons, 2020-05-13)
      Acceso abierto
      In the southern Peruvian Andes, communities are highly dependent on climatic conditions due to the mainly rain-fed agriculture and the importance of glaciers and snow melt as a freshwater resource. Longer-term trends and ...
    • A comparative analysis of TRMM-rain gauge data merging techniques at the daily time scale for distributed rainfall-runoff modeling applications 

      Nerini, D.; Zulkafli, Z.; Wang, L.-P.; Onof, C.; Buytaert, W.; Lavado-Casimiro, W.; Guyot, J.L.

      (American Meteorological Society, 2015-01)
      Embargado
      This study compares two nonparametric rainfall data merging methods-the mean bias correction and double-kernel smoothing-with two geostatistical methods-kriging with external drift and Bayesian combination-for optimizing ...
    • Comparative ground validation of IMERG and TMPA at variable spatiotemporal scales in the tropical Andes 

      Manz, B.; Páez-Bimos, S.; Horna, N.; Buytaert, W.; Ochoa-Tocachi, v; Lavado-Casimiro, W.; Willems, B.

      (American Meteorological Society, 2017-09)
      Acceso abierto
      An initial ground validation of the Integrated Multisatellite Retrievals for GPM (IMERG) Day-1 product from March 2014 to August 2015 is presented for the tropical Andes. IMERG was evaluated along with the Tropical Rainfall ...