March 22 is World Water Day

Today is World Water Day – a day to acknowledge the global water crisis and take action to save water. Communities are called upon to conserve water in order to ensure sustainability.

The World Water Day 2017 is celebrated under the theme "Wastewater: The Untapped Resource". As part of this day's celebrations, we demonstrate the value of earth observation in water resource management.

image-of-the-week-2017-03-17-City of Johannesburg Municipality

 

The City of Johannesburg Metropolitan Municipality

A SPOT6 satellite image captured during 2016 showing in high detail (1.5-meter spatial resolution) the City of Johannesburg Metropolitan Municipality.

Learn more about current and future developments like the Cities Corridors of Freedom project in the link below:
http://www.jda.org.za/ 

Image credits:
Produced at SANSA Earth Observation. SPOT6: Copyright © 2013 Airbus DS. All rights reserved.

 

Rapid population growth vs spatial growth

South Africa continues to experience rapid urbanization with 53.7 percent of the population living in urban areas in 1996 rising to 54.4 percent in 2001 and 67.7 percent in 2011.

It is therefore crucial to monitor urban growth spatially for sustainable development and environmental management. For this reason SANSA has developed methodologies to automatically extract human settlement data from satellite imagery.

Sentinel-2B for enhanced decision-making in agriculture and food security

The successful launch of Sentinel 2B on the 7th of March 2017 provides the users with great wealth of data required to monitor the environment and manage food security. Sentinel 2B is part of the sentinel 2 mission that carries an innovative wide-swath high-resolution multispectral imagery with 13 spectral bands perspectives of our land and vegetation.

Sentinel 2A was launched on 23 June 2015 and has been contributing to a number of national, regional and international initiatives on agriculture and environmental management.

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City of Cape Town

Sentinel-2 satellite image acquired 10 February 2017 showing the City of Cape Town Municipal boundary (20-meter spatial resolution). The false colour urban composite (R:12 G:11 B:5) shows built –up areas in purple.

Learn more about Cape Town’s vision for the City through the link provided below:
Cape Town’s Integrated Development Plan (IDP) 2012-2017

Map credits: SANSA, Earth Observation Directorate.

Topographic data: National Geo-Spatial Information (NGI), RSA.
Image credits: Sentinel-2: Copernicus Sentinel data 2017.

Attachments:
Access this URL (http://www.sansa.org.za/images/eo/image-of-the-week/2017/image-of-the-week-2017-03-09_City_of_Cape_Town_Municipality_map.png)Download[Map]15580 kB
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