floods

Using space technology to monitor flooding in Thailand

Severe flooding affected large stretches of Thailand’s Chao Phraya River

The South Asia region is especially prone to flooding. Annually, flooding takes hundred of lives and causes damages in tens of billions US dollars.

English

Country/Region: 

Publishing Date: 

Fri, 06/12/2013 - 14:00

latitude: 

16

longitude: 

101
Fri, 12/06/2013

Mexico - Regional Training course

English

As a way to strengthen the knowledge and skills of professionals working in government agencies in Mexico, Belize, Guatemala and El Salvador on the use of radar imagery in case of floods, UN-SPIDER and CRECTEALC conducted a training course in the facilities of CRECTEALC in Puebla, Mexico. The instructors provided participants with a theoretical background regarding radar imagery and practical exercises.

Date: 

24/10/2011 to 28/10/2011

Country/Region: 

Title of Training: 

Use of radar Imagery in case of floods

Trainers: 

Experts from the Argentinean Institute of Astronomy and Space Physics and from CATHALAC

Target Group: 

12 participants from 10 government agencies from these four Mesoamerican countries representing civil protection agencies, ministries of Environment and Natural Resources; national commissions on forestry and water resources; geographic Institutes and national planning agencies

Training Profile: 

The instructors focused on the characteristics of radar images, on the peculiarities concerning their acquisition by specific satellites with such capabilities (orbital trajectory of acquisition, type of band, polarization mode), and on the features displayed in the images emerging from specific characteristics of microwaves; scatterers on the ground including forests, crops, and pastures; and specific conditions of the ground including roughness and permanent or intermittent presence of water (water bodies, swamps, marshes and wetlands). The course was complemented with practical exercises on the use of specific software packages such as NEST, ENVI, ERDAS Imagine, ArcGIS and MapReady to pre-process and then to process radar imagery to detect floods in various types of environments.

In addition, instructors made special emphasis on the detection of water using a variety of post-processing algorithms including speckle filtering, change detection using several images, and multi-temporal analysis. As data from optical sensors can also be used for detection of floods, the processing of radar imagery was also complemented with techniques to process optical imagery, including the generation of indices and other methods for determining extents of inundated areas. Participants also focused on detection of changes using imagery for their respective countries.

latitude: 

19

longitude: 

-98

ESA: Making satellite flood maps easily available

ESA's Fully Automated Aqua Processing Service (FAAPS)

The European Space Agency ESA has helped to create a service that makes flood maps available simply via the Internet. In a

English

Publishing Date: 

Mon, 07/10/2013 - 08:20
Mon, 10/07/2013

Pakistan: SUPARCO generates inundation maps for ongoing floods

Pakistan is currently facing medium to high level flooding in all the major rivers of the country. The flooding is mainly due to heavy monsoon rains combined with hill torrents from North-Western mountain ranges and heavy inflow of water in Eastern Rivers. According to National

English

Country/Region: 

Publishing Date: 

Tue, 03/09/2013 - 16:26

latitude: 

30

longitude: 

69
Tue, 09/03/2013

Senegal: International Charter activated due to floods in Dakar

Senegal's rainy season this year has led to flooding

Due to flooding in Dakar caused by heavy rains, on 25 August 2013, the International Charter: Space and Major Disasters was activated to support Senegal with its flood response efforts.

English

Country/Region: 

Publishing Date: 

Fri, 30/08/2013 - 10:03

latitude: 

15

longitude: 

-17
Fri, 08/30/2013

Pakistan: International Charter activated for widespread flooding

 Flooding in the Punjab and Sindh Province's of Pakistan

On 22 August 2013, UNITAR/UNOSAT requested the activation of the International Charter: Space and Major Disasters to support Pakistan in its

English

Country/Region: 

Publishing Date: 

Thu, 22/08/2013 - 14:36

latitude: 

30

longitude: 

69
Thu, 08/22/2013

China: International Charter activated for severe floods

Flooding in these areas is likely to continue

On 16 August 2013, the China Meteorological Administration requested to activate the International Charter: Space and Major Disasters, after rain-triggered flooding had destroyed many roads and power facilities, affecting more than 2 million people in the provinces of Heilongjiang and Jilin as well as the Inner Mongolia Autonomous Region.

English

Publishing Date: 

Mon, 19/08/2013 - 10:42

latitude: 

46

longitude: 

127
Mon, 08/19/2013

ArcSWAT (Texas A&M University)

Sudan: International Charter activated due to floods

 Heavy rain and floods in Sudan

Due to heavy rain and floods in Sudan, the International Charter was activated on 6 August 2013 in order to aid and support

English

Country/Region: 

Publishing Date: 

Tue, 06/08/2013 - 17:33

latitude: 

13

longitude: 

30
Mon, 08/06/2012

India: GIS used in the Flood Mapping Project to prevent damages

India suffers of severe floods

The Indian State is strengthening efforts towards flood mapping using GIS to assess the vulnerability of selected areas and therefore, be able to prepare the necessary

English

Country/Region: 

Publishing Date: 

Wed, 24/07/2013 - 16:10

latitude: 

22

longitude: 

71
Wed, 07/24/2013

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