@InProceedings{TrasmonteSilvChavSegu:2006:TrMaMi,
               author = "Trasmonte, Grace and Silva, Yamina and Chavez, Ra{\'u}l and 
                         Segura, Berlin",
          affiliation = "{Centro de Predicci{\'o}n Num{\'e}rica del Tiempo y Clima del 
                         Instituto Geof{\'{\i}}sico del Per{\'u} (CPNTC/IGP)} and Calle 
                         Badajoz N 1699-171 Urbanizaci{\'o}n Mayorazgo IV Etapa, Lima 3 ? 
                         Per{\'u} (Trasmonte and Silva and {Ch{'a}vez} and Segura)",
                title = "Trends in Maximum and Minimum Temperature in the central Andes of 
                         Peru (Mantaro River Basin)",
            booktitle = "Proceedings...",
                 year = "2006",
               editor = "Vera, Carolina and Nobre, Carlos",
                pages = "463--468",
         organization = "International Conference on Southern Hemisphere Meteorology and 
                         Oceanography, 8. (ICSHMO).",
            publisher = "American Meteorological Society (AMS)",
              address = "45 Beacon Hill Road, Boston, MA, USA",
             keywords = "trends, temperature, climate change, Peruvian Andes, Mantaro river 
                         basin.",
             abstract = "The Mantaro Basin (34550,08 Km2) is located on the eastern slope 
                         of the central Peruvian Andes, between the coordinates 10º3430S- 
                         13º3530S/ 73º5500W- 76º4030W. This is a very complex basin due to 
                         its geomorphology, with almost 85% of its territory above 3000 m 
                         of altitude. Because of its strategic location and a constant 
                         supply of resources (water, energy and farmer products) to Lima 
                         (capital city of Peru), it was chosen along with other two more 
                         basins, for an integrated local evaluation with a Climate Change 
                         perspective, the first effort made by our country in this respect. 
                         In this context, linear trend analysis of observational 
                         temperature data (minimum tmin and maximum -tmax) have been 
                         performed, using monthly data for the time period of 1950 2002, 
                         provided by nine meteorological stations with altitudes ranging 
                         from 3150 m to 4413 m. The main results indicate that local 
                         meteorological controls are strong on the tmin, making difficult 
                         to see generalized tendencies, except for frost frequency; by the 
                         other hand, it has found clear positives tendencies in the tmax 
                         for some areas of the basin. Spatially, there is no defined trend 
                         patterns for the temperature on the highest zones (altitudes 
                         greater than 4200 m) and the central part of the basin (at 
                         altitudes between 3300 m and 4000 m), where we find the most 
                         productive zone of the valley, present a generalized positive 
                         trend in the tmax, with the highest values (0,3°C to 0,7°C by 
                         decade) on the peak of the rainy season (December to March). Also, 
                         the frequency of frost days (with tmin < 5°C) have been increasing 
                         in the rainy season (September to April), with an average rate of 
                         8 days/decade, however, there is no clear tendency of changes in 
                         frost intensities for the same period.",
  conference-location = "Foz do Igua{\c{c}}u",
      conference-year = "24-28 Apr. 2006",
             language = "en",
         organisation = "American Meteorological Society (AMS)",
                  ibi = "cptec.inpe.br/adm_conf/2005/10.18.22.51",
                  url = "http://urlib.net/ibi/cptec.inpe.br/adm_conf/2005/10.18.22.51",
           targetfile = "463-468.pdf",
                 type = "Climate change in the SH",
        urlaccessdate = "01 maio 2024"
}