Now showing items 1-20 of 61

    • Decadal changes in glacier parameters in the Cordillera Blanca, Peru, derived from remote sensing 

      Racoviteanu, A.E.; Arnaud, Y.; Williams, M.W.; Ordoñez, J.

      (Cambridge University Press, 2008-06)
      Acceso abierto
      We present spatial patterns of glacier fluctuations from the Cordillera Blanca, Peru, (glacier area, terminus elevations, median elevations and hypsography) at decadal timescales derived from 1970 aerial photography, 2003 ...
    • Spatio-temporal rainfall variability in the Amazon basin countries (Brazil, Peru, Bolivia, Colombia, and Ecuador) 

      Villar, J.C.E.; Ronchail, J.; Guyot, J.L.; Cochonneau, G.; Naziano, F.; Lavado-Casimiro, W.; De Oliveira, E.; Pombosa, R.; Vauchel, P.

      (Wiley Online Library, 2009-09)
      Acceso abierto
      Rainfall variability in the Amazon basin (AB) is analysed for the 1964-2003 period. It is based on 756 pluviometric stations distributed throughout the AB countries. For the first time it includes data from Bolivia, Peru, ...
    • Integrated assessment and adaptation to climate change impacts in the Peruvian Andes 

      Salzmann, N.; Huggel, C.; Calanca, P.; Díaz, A.; Jonas, T.; Jurt, C.; Konzelmann, T.; Lagos, P.; Rohrer, M.; Silverio, W.; Zappa, M.

      (Copernicus GmbH, 2009-11)
      Acceso abierto
      The Andes as mountain regions worldwide, provide fundamental resources, not only for the local population. Due to the topographic characteristics, the potential for natural hazards is higher than elsewhere. In these areas, ...
    • An environmental watch system for the andean countries: El observatorio andino 

      Muñoz, A.G.; López, P.; Velásquez, R.; Monterrey, L.; León, G.; Ruiz, F.; Recalde, C.; Cadena, J.; Mejía, R.; Paredes, M.; Bazo, Juan

      (American Meteorological Society, 2010-09)
      Acceso abierto
      Observatorio Andino (OA) was established in 2008 by The Centro de Modelado Científico (CMC) in collaboration with Climate information applied to agricultural risk management in the Andean countries (CIIFEN). The OA main ...
    • Determination of anthropogenic and biogenic compounds on atmospheric aerosol collected in urban, biomass burning and forest areas in São Paulo, Brazil 

      Vasconcellos, P.C.; Souza, D.Z.; Sanchez-Ccoyllo, O.; Bustillos, J.O.V.; Lee, H.; Santos, F.C.; Nascimento, K.H.; Araújo, M.P.; Saarnio, K.

      (Elsevier B.V., 2010-11)
      Embargado
      This study was conducted at three sites of different characteristics in São Paulo State: São Paulo (SPA), Piracicaba (PRB) and Mata Atlântica Forest (MAT). PM10, n-alkanes, pristane and phytane, PAHs, water-soluble ions ...
    • North Tropical Atlantic influence on western Amazon fire season variability 

      Fernandes, K.; Baethgen, W.; Bernardes, S.; Defries, R.; Dewitt, D.G.; Goddard, L.; Lavado-Casimiro, W.; Lee, D.E.; Padoch, C.; Pinedo-Vasquez, M.; Uriarte, M.

      (Blackwell Publishing Ltd, 2011-06)
      Acceso abierto
      The prevailing wet climate in the western Amazon is not favorable to the natural occurrence of fires. Nevertheless, the current process of clearing of humid forests for agriculture and cattle ranching has increased the ...
    • 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 ...
    • 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 ...
    • 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 ...
    • Discharge simulation in the sub-basins of the Amazon using ORCHIDEE forced by new datasets 

      Guimberteau, M.; Drapeau, G.; Ronchail, J.; Sultan, B.; Polcher, J.; Martinez, J.-M.; Prigent, C.; Guyot, J.L.; Cochonneau, G.; Espinoza, J.C.; Filizola, N.; Fraizy, P.; Lavado-Casimiro, W.; De Oliveira, E.; Pombosa, R.; Noriega, L.; Vauchel, P.

      (Copernicus GmbH, 2012-03)
      Acceso abierto
      The aim of this study is to evaluate the ability of the ORCHIDEE land surface model to simulate streamflows over each sub-basin of the Amazon River basin. For this purpose, simulations are performed with a routing module ...
    • 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 ...
    • The integration of field measurements and satellite observations to determine river solid loads in poorly monitored basins 

      Espinoza Villar, R.; Martinez, J.-M.; Guyot, J.L.; Fraizy, P.; Armijos, E.; Crave, A.; Bazán, H.; Vauchel, P.; Lavado-Casimiro, W.

      (IRD France Nord, 2012-06)
      Embargado
      The use of satellite imagery to assess river sediment discharge is discussed in the context of poorly monitored basins. For more than three decades, the Peruvian hydrological service SENAMHI has been maintaining several ...
    • Early warning systems: The "last mile" of adaptation 

      Huggel, C.; Rohrer, M.; Calanca, v; Salzmann, N.; Vergara, W.; Quispe, N.; Ceballos, J.L.

      (American Geophysical Union, 2012-09)
      Acceso abierto
      Recent scientific assessment studies of climate change impacts, including those from the Intergovernmental Panel on Climate Change, provide evidence of the negative effects of climate variability and change on natural and ...
    • The Major Floods in the Amazonas River and Tributaries (Western Amazon Basin) during the 1970-2012 Period: A Focus on the 2012 Flood 

      Espinoza, J.C.; Ronchail, J.; Frappart, F.; Lavado-Casimiro, W.; Santini, W.; Guyot, J.L.

      (American Meteorological Society, 2013)
      Embargado
      In this work, the authors analyze the origin of the extreme floods in the Peruvian Amazonas River during the 1970-2012 period, focusing on the recent April 2012 flooding (55400m3 s-1). Several hydrological variables, such ...
    • A critical assessment of the JULES land surface model hydrology for humid tropical environments 

      Zulkafli, Z.; Buytaert, W.; Onof, C.; Lavado-Casimiro, W.; Guyot, J.L.

      (Hydrology and Earth System Sciences (HESS), 2013-01)
      Acceso abierto
      Global land surface models (LSMs) such as the Joint UK Land Environment Simulator (JULES) are originally developed to provide surface boundary conditions for climate models. They are increasingly used for hydrological ...
    • Warming and wetting signals emerging from analysis of changes in climate extreme indices over South America 

      Skansi, M.D.L.M.; Brunet, M.; Sigró, J.; Aguilar, E.; Arevalo Groening, J.A.; Bentancur, O.J.; Castellón Geier, Y.R.

      (Elsevier B.V., 2013-01)
      Embargado
      Here we show and discuss the results of an assessment of changes in both area-averaged and station-based climate extreme indices over South America (SA) for the 1950-2010 and 1969-2009 periods using high-quality daily ...
    • ENSO impact on hydrology in Peru 

      Lavado-Casimiro, W.; Felipe, O.; Silvestre, E.; Bourrel, v

      (Copernicus GmbH, 2013-04)
      Acceso abierto
      The El Niño and La Niña impacts on the hydrology of Peru were assessed based on discharge data (1968-2006) of 20 river catchments distributed over three drainage regions in Peru: 14 in the Pacific Coast (PC), 3 in the Lake ...
    • Relationship between monthly rainfall in NW peru and tropical sea surface temperature 

      Bazo, Juan; Lorenzo, M.D.L.N.; Porfirio Da Rocha, R.

      (Hindawi Publishing Corporation, 2013-08)
      Acceso abierto
      This study assesses the relationship between global sea surface temperature (SST) and a regional index of rainfall (NWPR) in Piura-Tumbes, a coastal region in northwestern Peru, over the period 1965-2008 by means of the ...
    • Trends in rainfall and temperature in the Peruvian Amazon-Andes basin over the last 40years (1965-2007) 

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

      (John Wiley & Sons, Inc., 2013-09)
      Embargado
      The hydroclimatology of the Peruvian Amazon-Andes basin (PAB) which surface corresponding to 7% of the Amazon basin is still poorly documented. We propose here an extended and original analysis of the temporal evolution ...
    • Sediment budget in the Ucayali River basin, an Andean tributary of the Amazon River 

      Santini, W.; Martinez, J.-M.; Espinoza-Villar, R.; Cochonneau, G.; Vauchel, P.; Moquet, J.S.; Baby, P.; Espinoza, J.C.; Lavado-Casimiro, W.; Carranza, J.; Guyot, J.L.

      (Copernicus GmbH, 2014-01)
      Acceso abierto
      Formation of mountain ranges results from complex coupling between lithospheric deformation, mechanisms linked to subduction and surface processes: weathering, erosion, and climate. Today, erosion of the eastern Andean ...