ASR Advances in Science and Research ASR Adv. Sci. Res. 1992-0636 Copernicus Publications Göttingen, Germany 10.5194/asr-6-219-2011 A data portal for regional climatic trend analysis in a Peruvian High Andes region Schwarb M. 1 Acuña D. 2 Konzelmann Th. 3 Rohrer M. 1 Salzmann N. 4 Serpa Lopez B. 2 Silvestre E. 2 Meteodat GmbH, Zurich, Switzerland SENAMHI, Lima, Peru Federal Office of Meteorology and Climatology MeteoSwiss, Zurich, Switzerland Department of Geography, University of Zurich, Switzerland 16 08 2011 6 1 219 226 Copyright: © 2011 M. Schwarb et al. 2011 This work is licensed under the Creative Commons Attribution 3.0 Unported License. To view a copy of this licence, visit https://creativecommons.org/licenses/by/3.0/ This article is available from https://asr.copernicus.org/articles/6/219/2011/asr-6-219-2011.html The full text article is available as a PDF file from https://asr.copernicus.org/articles/6/219/2011/asr-6-219-2011.pdf

In the frame of a Swiss-Peruvian climate change adaptation initiative (PACC), operational and historical data series of more than 100 stations of the Peruvian Meteorological and Hydrological Service (SENAMHI) are now accessible in a dedicated data portal. The data portal allows for example the comparison of data series or the interpolation of spatial fields as well as download of data in various data formats. It is thus a valuable tool supporting the process of data homogenisation and generation of a regional baseline climatology for a sound development of adequate climate change adaptation measures. The procedure to homogenize air-temperature and precipitation data series near Cusco city is outlined and followed by an exemplary trend analysis. Local air temperature trends are found to be in line with global mean trends.

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