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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
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
2
MAPPING OF FLOODING POINTS AND RAINFALL DATA USING ARCGIS
RIO DE JANEIRO CITY - RJ - BRAZIL
2014-2015 EVENTS
- The Phenomenon 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
Types of Rain
3
- The Data Source:
Satellite Images
Lightning Detectors
Water Level Meters
Radar Images
Rain Gauges Field Operators Teams
MAPPING OF FLOODING POINTS AND RAINFALL DATA USING ARCGIS
RIO DE JANEIRO CITY - RJ - BRAZIL
2014-2015 EVENTS
4
- City Topography and Hydrography:
MAPPING OF FLOODING POINTS AND RAINFALL DATA USING ARCGIS
RIO DE JANEIRO CITY - RJ - BRAZIL
2014-2015 EVENTS
5
- The Necessity of Mapping:
Where to
proceed
dredging?
For which place
prepare a
drainage
project?
To which place send
the maintenance team?
MAPPING OF FLOODING POINTS AND RAINFALL DATA USING ARCGIS
RIO DE JANEIRO CITY - RJ - BRAZIL
2014-2015 EVENTS
6
Limitations due to Scarcity of
Resources!
What are the Criteria for Setting the
Priorities of Action?
- The Necessity of Mapping:
MAPPING OF FLOODING POINTS AND RAINFALL DATA USING ARCGIS
RIO DE JANEIRO CITY - RJ - BRAZIL
2014-2015 EVENTS
Where to
proceed
dredging?
For which place
prepare a
drainage
project?
To which place send
the maintenance team?
7
- Involved Agencies and Data Collection Mode:
Field Teams
Operators
Rain Gauges
(Pluviographs)
Flooding Data Rain Data
MAPPING OF FLOODING POINTS AND RAINFALL DATA USING ARCGIS
RIO DE JANEIRO CITY - RJ - BRAZIL
2014-2015 EVENTS
8
- Mapped Information:
No 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
MAPPING OF FLOODING POINTS AND RAINFALL DATA USING ARCGIS
RIO DE JANEIRO CITY - RJ - BRAZIL
2014-2015 EVENTS
9
- Mapped Information:
No 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
MAPPING OF FLOODING POINTS AND RAINFALL DATA USING ARCGIS
RIO DE JANEIRO CITY - RJ - BRAZIL
2014-2015 EVENTS
10
- Mapped Information:
I
Intensity
(mm/h)
(mm/15min.)
F
Frequency
(years)
D
Duration
(min.)
Rain Data
MAPPING OF FLOODING POINTS AND RAINFALL DATA USING ARCGIS
RIO DE JANEIRO CITY - RJ - BRAZIL
2014-2015 EVENTS
Alert when
I>15mm/15min!
Alert when D
is short for
high I!
Alert when
F rain> F conduit!
Galleries for Rainwater
(F conduit=10)
Channels
(F conduit=25)
11
- Mapped Information:
Flooding Data
(Sent by Field Operators Teams)
MAPPING OF FLOODING POINTS AND RAINFALL DATA USING ARCGIS
RIO DE JANEIRO CITY - RJ - BRAZIL
2014-2015 EVENTS
12
- Mapped Information:
Rain Gauges
Data
MAPPING OF FLOODING POINTS AND RAINFALL DATA USING ARCGIS
RIO DE JANEIRO CITY - RJ - BRAZIL
2014-2015 EVENTS
13
Rain Data
X
Flooding Data
14
- Obtained Information with Mapping:
Pluviometric
Indexes
MAPPING OF FLOODING POINTS AND RAINFALL DATA USING ARCGIS
RIO DE JANEIRO CITY - RJ - BRAZIL
2014-2015 EVENTS
15
- Obtained Information with Mapping:
MAPPING OF FLOODING POINTS AND RAINFALL DATA USING ARCGIS
RIO DE JANEIRO CITY - RJ - BRAZIL
2014-2015 EVENTS
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 Frain<10 years and channels with Frain<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
MAPPING OF FLOODING POINTS AND RAINFALL DATA USING ARCGIS
RIO DE JANEIRO CITY - RJ - BRAZIL
2014-2015 EVENTS
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
MAPPING OF FLOODING POINTS AND RAINFALL DATA USING ARCGIS
RIO DE JANEIRO CITY - RJ - BRAZIL
2014-2015 EVENTS
18
- Future Implementations:
App for smartphones in Ios / Android / Windows language for images and datalogging
related to the points of flooding.
App that allows field operator teams to communicate with the RJ Operational Center and make
real-time mapping of points of flooding (using Collector)
MAPPING OF FLOODING POINTS AND RAINFALL DATA USING ARCGIS
RIO DE JANEIRO CITY - RJ - BRAZIL
2014-2015 EVENTS
19
Thanks for Your Attention!
Contacts: nelson_lima@hotmail.com
nelson.lima@1968@gmail.com
+55 21 2088-0673
Rio de Janeiro–RJ–Brazil
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
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