نتایج جستجو برای: echam4
تعداد نتایج: 84 فیلتر نتایج به سال:
Climate change impact on phosphorus load is modelled and compared for two Swedish rivers with different characteristics. The modelling was based on the ECHAM4/OPYC3 B2 scenario, downscaled with the RCA3 model and a complementary scaling procedure. Hydrology and phosphorus concentrations were simulated for the time period 1961–2100, using the ICECREAM model for arable leaching, and HBV-NP model ...
8 years of ERS-2/GOME total ozone observations are used to evaluate first results of a multi-year model simulation representing "year 2000" conditions with an updated version of the coupled-chemistry climate model ECHAM4.L39(DLR)/CHEM (hereafter: E39/C). The analysis focuses on zonal large scale variations of corresponding ozone fields. We present a comparison of total ozone and wave amplitudes...
Heterogeneous ice freezing points of aqueous solutions containing various immersed solid dicarboxylic acids (oxalic, adipic, succinic, phthalic and fumaric) have been measured with a differential scanning calorimeter. The results show that only the dihydrate of oxalic acid (OAD) acts as a heterogeneous ice nucleus, with an increase in freezing temperature between 2 and 5 K depending on solution...
One of the objectives of the QUARCC project is to investigate the robustness of recent reports of an anthropogenic innuence on global climate through the application of a consistent optimal detection and attribution methodology to a wider range of alternative climate change mechanisms and a wider range of model predictions and observational data sources than have been addressed to date. The act...
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