Global

Precipitation-Generated Landslides on NASA's Catalog

Lanslide. Image: NASA

Extreme events like heavy rainfall, storms or hurricane activate landslides. Unstable soil surface conditions can make heavy rains act as the triggering point for mud, rocks and/or debris to move down from mountains and hillsides. These mass movements cause unexpected human and economical losses. Heavy rainfall is the most common cause for landslides although earthquakes, volcanic eruptions, erosion, collapse of groundwater reservoirs, ice melt can also cause them.

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Sat, 12/11/2016 - 04:50

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IMERG offers Global Accumulated Precipitation Information

IMERG visualization. Image: NASA

The Integrated Multi-satellitE Retrievals for Global Precipitation Measurment or IMERG released through NASA GES DISC, is a global rainfall dataset providing precipitation rates for the whole planet every half hour. Estimating the amount of accumulated rainfall for any region over a period of time is possible using IMERG.

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Sat, 12/11/2016 - 03:23

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UNOOSA participates in the Earth Info Day at CoP 22

Participants at the Earth Info Day

On Tuesday 08 November 2016, UNFCCC organized the “Earth Info Day” during CoP 22 as part of the SBSTA activities.  The event was used to showcase the benefits of

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“Earth Info Day” during CoP 22 as part of the SBSTA activities

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Thu, 10/11/2016 - 07:41

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Wed, 11/09/2016

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UNOOSA at COP 22

With the entry into force of the Paris climate change agreement on 04 November 2016; the Conference of Parties to the Climate Change Convention (CoP) in Marrakesh is essentially the first conference of parties dealing with its implementation.  As in previous CoPs, delegations from many Member States are meeting to agree on the ways in which the Paris agreement will be implemented.

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UNOOSA participation at COP 22

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Thu, 10/11/2016 - 07:06

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Mapping CO2 produced by humans from space

OCO-2 measurment from 2014. Image: NASA

Scientists from the Finnish Meteorological Institute, Helsinki, produced three maps of carbon dioxide emissions based on satellite observations from NASA’s Orbiting Carbon Observatory-2 (OCO-2) and combining it with an innovative data-processing method.

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Wed, 09/11/2016 - 07:24

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ISS commemorates 16 years in space to serve the earth

ISS Expedition 49 crew. Image: NASA

The International Space Station (ISS) is celebrating 16 years of space living. The station was built with the contribution of space agencies from 15 countries between 1998 and 2011.  The first crew from the Russian Federation and the United States arrived in the station on 02 November 2000.   According to ESA, the station weights almost 400 tonnes and has more than 820 cubic metres of pressurised space - enough room for its crew of six persons and a vast array of scientific experiments.

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Sat, 05/11/2016 - 01:50

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NASA’s microsatellites to improve hurricane prediction

Monitoring Hurricane Matthew. Image: NASA

Satellites improvements are an important contribution to the monitoring and forecasting of future storms. NASA is managing a new group of eight economical microsatellite observatories, called the Cyclone Global Navigation Satellite System (CYGNSS) that will be orbiting the Earth at low level. Each observatory will be evenly placed around the world.

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Thu, 03/11/2016 - 06:23

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Wed, 11/02/2016

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Post earthquake’s observations

Geohazards in Europe. Courtesy of ESA

Monitoring the soil after seismic activity is fundamental to understand the small but significant modifications on the soil. Thanks to the merge of satellite imagery and computing is possible to do it automatically nowadays. The Copernicus Sentinel-1 twin radar satellite takes consecutive pictures of the same place and the imagery is then combined with cloud computing to unveil millimeter variations.

This well-known practice was developed in the 80’s using GPS centimeter measurements.

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Sat, 29/10/2016 - 05:21

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Fri, 10/28/2016

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Satellite Imagery to evaluate human settlements on the planet

Satellite Image of New York City. Courtesy of ESA

The relevance of Satellite images to estimate the number of people living in urban or rural areas was presented on 18 October 2016 by the European Commission’s Joint Research Centre (JRC) at the United Nations Conference on Housing and Sustainable Urban Development (Habitat III) held in Quito, Ecuador from 17 to 20 October 2016.

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Tue, 25/10/2016 - 03:07

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Tue, 10/25/2016

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Copernicus Sentinel-3A latest contribution

Ice change in Greenland. Courtesy of ESA

On 20 October 2016 the Ocean and Land Colour Instrument released its first imagery.

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Fri, 21/10/2016 - 06:25

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Fri, 10/21/2016

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