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Rodríguez Delfin, A.Posadas, A.Quiróz, R.[Rendimiento y absorcion de algunos nutrimentos en plantas de camote cultivadas con estres hidrico y salino.]Rendimiento y absorcion de algunos nutrimentos en plantas de camote cultivadas con estres hidrico y salino.
Ramírez, D.Yactayo, W.Gutiérrez, R.Mares, V.Mendiburu, F. dePosadas, A.Quiróz, R.[Chlorophyll concentration in leaves is an indicator of potato tuber yield in water-shortage conditions.]Chlorophyll concentration in leaves is an indicator of potato tuber yield in water-shortage conditions.

Quantifying rainfall from remotely sensed data is crucial for regions where meteorological stations are scarce. This might be one of the only options for analysing rainfall patterns at different temporal and spatial scales in data-scarce environments, particularly in developing countries. The Tro...


Heidinger, HalineYarleque, C.Posadas, A.Quiróz, R.[TRMM rainfall correction over the Andean Plateau using wavelet multi-resolution analysis]TRMM rainfall correction over the Andean Plateau using wavelet multi-resolution analysis

Global warming has been linked to systematic changes in North and South America's climates and may severely impact the North American monsoon system (NAMS) and South American monsoon system (SAMS). This study examines interannual-to-decadal variations and changes in the low-troposphere (850 hPa) ...


Carvalho, Leila M. V.Jones, C.Posadas, A.Quiróz, R.Bookhagen, B.Liebmann, B.[CMIP5 Simulations of low-level tropospheric temperature and moisture over the tropical Americas]CMIP5 Simulations of low-level tropospheric temperature and moisture over the tropical Americas
Chavez, P.Yarleque, C.Loayza, H.Mares, V.Hancco, P.Priou, S.Marquez, M.P.Posadas, A.Zorogastua, P.Flexas, J.Quiróz, R.[Detection of bacterial wilt infection caused by Ralstonia solanacearum in potato (Solanum tuberosum L.) through multifractal analysis applied to remotely sensed data.]Detection of bacterial wilt infection caused by Ralstonia solanacearum in potato (Solanum tuberosum L.) through multifractal analysis applied to remotely sensed data.

Whole soil samples from Peruvian bofedales (highland peatlands), located at an average altitude of 3881 m above sea level, were analyzed through 13C solid-state nuclear magnetic resonance (13C SSNMR) spectroscopy. The objective was to make a semi-quantitative characterization of the predominant o...


Segnini, A.Souza, A.A. deNovotny, E.H.Milori, D.M.B.P.Silva, W.T.L. daBonagamba, T.J.Posadas, A.Quiróz, R.[Characterization of Peatland Soils from the High Andes through 13C Nuclear Magnetic Resonance Spectroscopy]Characterization of Peatland Soils from the High Andes through 13C Nuclear Magnetic Resonance Spectroscopy

Quantifying rainfall at spatial and temporal scales in regions where meteorological stations are scarce is important for agriculture, natural resource management and land-atmosphere interactions science. We describe a new approach to reconstruct daily rainfall from rain gauge data and the normali...


Quiróz, R.Yarleque, C.Posadas, A.Mares, V.Immerzeel, W.W.[Improving daily rainfall estimation from NDVI using wavelet transform]Improving daily rainfall estimation from NDVI using wavelet transform

Remotely sensed data are often used as proxies for indirect precipitation measures over data-scarce and complex-terrain areas such as the Peruvian Andes. Although this information might be appropriate for some research requirements, the extent at which local sites could be related to such informa...


Posadas, A.Duffaut Espinoza, L.A.Yarleque, C.Carbajal, M.Heidinger, HalineCarvalho, L.Jones, C.Quiróz, R.[Spatial random downscaling of rainfall signals in Andean heterogeneous terrain.]Spatial random downscaling of rainfall signals in Andean heterogeneous terrain.
Yactayo, W.Ramírez, D.Gutiérrez, R.Mares, V.Posadas, A.Quiróz, R.[Effect of partial root-zone drying irrigation timing on potato tuber yield and water use efficiency.]Effect of partial root-zone drying irrigation timing on potato tuber yield and water use efficiency.

Data acquisition for parameterization is one of the most important limitations for the use of potato crop growth models. Non destructive techniques such as remote sensing for gathering required data could circumvent this limitation. Our goal was to analyze the effects of incorporating ground-base...


Quiróz, R.Loayza, H.Barreda, CarolinaGavilán, C.Posadas, A.Ramírez, D.[Linking process-based potato models with light reflectance data: Does model complexity enhance yield prediction accuracy?]Linking process-based potato models with light reflectance data: Does model complexity enhance yield prediction accuracy?

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