A cidade do Rio de Janeiro e as chuvas de março/93: (des) organização urbana e inundações

Marcus Felipe Emerick S Cambra, Ana Luiza Coelho Netto

Abstract


The mountainous arcas of Rio de Janeiro act as water divergent areas, converging to the valley-flats. In the last decades, urban expansion has advanced fastly to still forested upward lands, mainly on the north slope of the Tijuca Massif, where numerous "favelas" are located. Changes in the slopes and valley-flats hydrologic behaviour generate major runoff budgets. So major flows-sediment's and flows-garbage's concentrations into the drained valley-axis, naturally or artificially (channels and pluvial tubulations), spreading inundations on the respectives street of the districts's major density population . The Joana, Maracanã and Comprido basins studied in detail show that the mud-flows and garbage-flows concentrate on the knick slopes and the floods on the valley-axis. These events are aggravated by the cumulated rainstorms due to the inadequacy of the urban pluvial drainage system.



DOI: https://doi.org/10.11137/1997_0_55-74

Refbacks

  • There are currently no refbacks.


Creative Commons License
This work is licensed under a Creative Commons Attribution 4.0 International License.

SCImago Journal & Country Rank
Associado Diadorim Associado Latindex ROAD ISSN REDIB ISSN Google Acadêmico DRJI DOAJ GeoRef Clarivate

ISSN 0101-9759 e-ISSN 1982-3908