RIO DE JANEIRO CITY HALL MUNICIPALSECRETARY OF SANITATION AND WATER RESOURCES - SMAR WATER SANITATION AND DRAINAGE AUTHORITY - RIOÁGUAS BOARD OF STUDIES AND PROJECTS MANAGEMENT OF RESEARCH AND TECHNICAL SUPPORT Mapping of Flooding Points and Rainfall Data using ArcGIS Rio de Janeiro City - RJ - Brazil 2014-2015 Events Nelson Luiz de Andrade Lima Civil Engineer Manager of Research and Technical Support BSP RioÁguas Prof. Veiga de Almeida University UVA Faculty of Civil Engineering
2 - The Phenomenon of Rain: Types of Rain Convective Precipitation great intensity short duration small areas Frontal Precipitation medium intensity long duration large areas Orographic Precipitation low intensity high duration small areas
3 - The Data Source: Satellite Images Water Level Meters Lightning Detectors Radar Images Rain Gauges Field Operators Teams
4 - City Topography and Hydrography:
5 - The Necessity of Mapping: Where to proceed dredging? For which place prepare a drainage project? To which place send the maintenance team?
6 - The Necessity of Mapping: Where to proceed dredging? Limitations due to Scarcity of Resources! For which place prepare a drainage project? What are the Criteria for Setting the Priorities of Action? To which place send the maintenance team?
7 - Involved Agencies and Data Collection Mode: Field Teams Operators Rain Gauges (Pluviographs) Flooding Data Rain Data
8 - Mapped Information: N o DATE START (DAY HOUR) END (DAY HOUR) 1 02/01/2014 02/01/2014 00:45 02/01/2014 05:45 2 14/01/2014 13/01/2014 22:30 14/01/2014 02:15 3 16/01/2014 16/01/2014 18:15 16/01/2014 23:45 4 16/02/2014 16/02/2014 16:00 16/02/2014 23:30 5 07/03/2014 07/03/2014 14:45 08/03/2014 22:30 6 22/03/2014 22/03/2014 19:15 23/03/2014 19:15 7 14/04/2014 14/04/2014 07:40 16/04/2014 09:10 8 24/04/2014 24/04/2014 16:10 25/04/2014 07:35 9 28/04/2014 28/04/2014 01:13 28/04/2014 08:50 10 30/06/2014 30/06/2014 19:30 30/06/2014 23:15 11 08/07/2014 08/07/2014 13:00 09/07/2014 07:15 12 10/07/2014 10/07/2014 11:45 11/07/2014 23:00 13 13/08/2014 13/08/2014 15:45 14/08/2014 06:00 14 04/09/2014 03/09/2014 02:00 03/09/2014 08:00 15 26/11/2014 26/11/2014 06:45 27/11/2014 06:00 16 27/11/2014 28/11/2014 07:15 29/11/2014 00:45 17 05/12/2014 04/12/2014 20:30 05/12/2014 21:00 18 13/12/2014 13/12/2014 13:15 14/12/2014 02:30 19 23/12/2014 23/12/2014 09:15 24/12/2014 09:10 20 31/12/2014 31/12/2014 15:00 31/12/2014 21:00 Rainy Days in 2014
9 - Mapped Information: N o DATE START (DAY HOUR) END (DAY HOUR) 1 22/01/2015 22/01/2015-17:15:00 22/01/2015-23:00:00 2 28/01/2015 28/01/2015 15:30:00 28/01/2015-17:00:00 3 31/01/2015 31/01/2015 00:00:00 31/01/2015 04:15:00 4 01/02/2015 31/01/2015 12:45:00 01/02/2015 12:30:00 5 02/02/2015 02/02/2015 04:15:00 02/02/2015 22:00:00 6 06/02/2015 06/02/2015 13:30:00 06/02/2015 17:15:00 7 07/02/2015 07/02/2015 13:30:00 07/02/2015 19:45:00 8 14/02/2015 14/02/2015 17:45:00 15/02/2015 01:30:00 9 15/02/2015 15/02/2015 16:15:00 16/02/2015 00:45:00 10 17/02/2015 17/02/2015 16:00:00 17/02/2015 23:00:00 11 07/03/2015 07/03/2015 17:45:00 08/03/2015 00:30:00 12 18/03/2015 18/03/2015 19:00:00 18/03/2015 22:15:00 13 22/03/2015 22/03/2015 14:30:00 23/03/2015 04:30:00 14 29/03/2015 29/03/2015 18:00:00 30/03/2015 04:00:00 15 05/05/2015 04/05/2015 20:00:00 05/05/2015 09:15:00 16 08/05/2015 08/05/2015 01:45:00 08/05/2015 06:45:00 17 28/05/2015 28/05/2015 16:30:00 28/05/2015 20:15:00 18 24/06/2015 24/06/2015 04:15:00 24/06/2015 16:15:00 19 03/11/2015 02/11/2015 18:00:00 03/11/2015 09:45:00 20 04/11/2015 04/11/2015 16:30:00 05/11/2015 03:15:00 21 07/11/2015 06/11/2015 17:00:00 07/11/2015 09:30:00 22 08/11/2015 07/11/2015 11:30:00 08/11/2015 05:45:00 23 21/11/2015 21/11/2015 05:00:00 21/11/2015 12:15:00 24 23/11/2015 23/11/2015 03:00:00 23/11/2015 07:00:00 25 28/11/2015 28/11/2015 18:45:00 28/11/2015 23:15:00 26 29/11/2015 29/11/2015 14:45:00 01/12/2015 02:45:00 27 07/12/2015 06/12/2015 19:15:00 07/12/2015 08:15:00 28 12/12/2015 12/12/2015 18:00:00 12/12/2015 23:30:00 Rainy Days in 2015
10 - Mapped Information: Rain Data I Intensity (mm/h) (mm/15min.) Alert when I>15mm/15min! Alert when Alert when D is short for high I! D Duration (min.) F Frequency (years) F rain > F conduit! Galleries for Rainwater (F conduit =10) Channels (F conduit =25)
11 - Mapped Information: Flooding Data (Sent by Field Operators Teams)
12 - Mapped Information: Rain Gauges Data
13 Rain Data X Flooding Data
14 - Obtained Information with Mapping: Pluviometric Indexes
15 - Obtained Information with Mapping:
16 - Obtained Information with Mapping: - Points of flooding in areas I<15mm /15min - Points with supposedly high rainfall intensity (by the alert criteria), but no floods - Floods in places attended by raiwater galleries with F rain <10 years and channels with F rain <25 years - Ocurrence of floods is associated with a distributed rainfall throughout the territory of the city, but with an average intensity lower than the warning index - Rain gauges whose area of influence had more points of flooding - Points of flooding that had never been indentified before, with frequency index for each point - Indication of rainfalls intensity associated with each of the points of flooding formed
17 - Future Implementations: - Inclusion of the digital elevation model processed by NISR and TOPODATA - Altimetry (three-dimensional mapping of terrain) and hydraulic data associated with rivers and channels - Flow direction of rivers and channels - Surface flow coefficients (runoff) from the land use map - Inclusion of the drainage network (as built) - Set rainfall indexes to rivers and channnels basins - Influence of the tides in the rivers and channnels outflows - Inclusion of the RioÁguas monitoring system (hydrometric network) - Extension of the regions affected by floods - Temperature, relative humidity and wind speed just before the rainy event - Hydrological Analysis with Spatial Analyst - Integration between different archiving systems: SISARQ, SigÁguas and Geovias - Drainage network extraction, algebra maps and watersheds delimitation - Indication of alternate routes of traffic considering the flood points
18 - Future Implementations: App that allows field operator teams to communicate with the RJ Operational Center and make real-time mapping of points of flooding (using Collector) App for smartphones in Ios / Android / Windows language for images and datalogging related to the points of flooding.
19 RIO DE JANEIRO CITY HALL SECRETARY OF SANITATION AND WATER RESOURCES - SMAR FOUNDATION INSTITUTE OF MUNICIPAL WATERS - RIOÁGUAS BOARD OF STUDIES AND PROJECTS MANAGEMENT OF RESEARCH AND TECHNICAL SUPPORT Thanks for Your Attention! Contacts: nelson_lima@hotmail.com nelson.lima@1968@gmail.com +55 21 2088-0673 Rio de Janeiro RJ Brazil