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| Content Provider | Springer Nature Link |
|---|---|
| Author | Satyamurty, Prakki Castro, Aline Anderson Tota, Julio Silva Gularte, Lucia Eliane Manzi, Antonio Ocimar |
| Copyright Year | 2009 |
| Abstract | Rainfall series at 18 stations along the major rivers of the Brazilian Amazon Basin, having data since 1920s or 1930s, are analyzed to verify if there are appreciable long-term trends. Annual, rainy-season, and dry-season rainfalls are individually analyzed for each station and for the region as a whole. Some stations showed positive trends and some negative trends. The trends in the annual rainfall are significant at only six stations, five of which reporting increasing trends (Barcelos, Belem, Manaus, Rio Branco, and Soure stations) and just one (Itaituba station) reporting decreasing trend. The climatological values of rainfall before and after 1970 show significant differences at six stations (Barcelos, Belem, Benjamin Constant, Iaurete, Itaituba, and Soure). The region as a whole shows an insignificant and weak downward trend; therefore, we cannot affirm that the rainfall in the Brazilian Amazon basin is experiencing a significant change, except at a few individual stations. Subregions with upward and downward trends are interspersed in space from the far eastern Amazon to western Amazon. Most of the seasonal trends follow the annual trends, thus, indicating a certain consistency in the datasets and analysis. |
| Starting Page | 139 |
| Ending Page | 148 |
| Page Count | 10 |
| File Format | |
| ISSN | 0177798X |
| Journal | Theoretical and Applied Climatology |
| Volume Number | 99 |
| Issue Number | 1-2 |
| e-ISSN | 14344483 |
| Language | English |
| Publisher | Springer Vienna |
| Publisher Date | 2009-04-18 |
| Publisher Place | Vienna |
| Access Restriction | One Nation One Subscription (ONOS) |
| Subject Keyword | Waste Water Technology / Water Pollution Control / Water Management / Aquatic Pollution Climate Change Atmospheric Protection/Air Quality Control/Air Pollution Meteorology/Climatology |
| Content Type | Text |
| Resource Type | Article |
| Subject | Atmospheric Science |
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