HOME >> BIOLOGY >> NEWS
Envisat making sharpest ever global Earth map

The most detailed portrait ever of the Earth's land surface is being created with ESA's Envisat environmental satellite. The GLOBCOVER project aims at producing a global land cover map to a resolution three times sharper than any previous satellite map.

It will be a unique depiction of the face of our planet in 2005, broken down into more than 20 separate land cover classes. The completed GLOBCOVER map will have numerous uses, including plotting worldwide land use trends, studying natural and managed ecosystems and modelling climate change extent and impacts. Envisat's Medium Resolution Imaging Spectrometer (MERIS) instrument is being systematically used in Full Resolution Mode for the project, acquiring images with a spatial resolution of 300 metres, with an average 150 minutes of acquisitions occurring daily.

The estimate is that up to 20 terabytes of imagery will be needed to mosaic together the final worldwide GLOBCOVER map an amount of data equivalent to the contents of 20 million books. The image acquisition strategy is based around regional climate patterns to minimise cloud or snow cover. Multiple acquisitions are planned for some regions to account for seasonal variations in land cover.

Other Envisat sensors will work in synergy with MERIS. The Advanced Synthetic Aperture Radar (ASAR) instrument will be used to differentiate between similar land cover classes, such as wetlands and humid tropical rainforests. And information from the satellite's Advanced Along Track Scanning Radiometer will be used to correct for atmospheric distortion and to perform 'cloud masking', or the elimination of cloud pixels. An international network of partners is working with ESA on the two-year GLOBCOVER project, which is taking place as part of the Earth Observation Data User Element (DUE).

Participants include the United Nations Environment Programme (UNEP), the Food and Agriculture Organisation (FAO), the European Commission'
'"/>

Contact: Mariangela D'Acunto
mariangela.dacunto@esa.int
39-06-941-80-856
European Space Agency
5-May-2005


Page: 1 2 3

Related biology news :

1. Envisat captures first image of Sargassum from space
2. Envisat Symposium 2007 kicks off in Switzerland
3. Scientists meet to review Envisat results after 5 years of operations
4. Danish expedition ship tracked by Envisat satellite
5. Dragon over water: Envisat monitors Chinas largest lake, rivers flooding
6. Envisat radar surveillance protects endangered prehistoric fish
7. MERIS/AATSR Workshop: Focus on Envisat sensors measuring heat and light
8. Spanish forest fire aftermath surveyed by Envisat
9. B-15A icebergs close encounter monitored by Envisat
10. Los Alamos National Laboratory making progress in Groundwater Protection Program
11. Researchers making significant strides against diabetic retinopathy

Post Your Comments:
*Name:
*Comment:
*Email:


(Date:12/5/2018)... Texas (PRWEB) , ... December 04, 2018 , ... ... supplier, has announced the much-anticipated launch of their 100-liter (26 gallon) SAFEthread Drum. ... SAFEthread Drum in 2017, which brought a much-needed modern redesign to the ...
(Date:11/29/2018)... Calif. (PRWEB) , ... November 29, 2018 , ... ... Technologies, is excited to collaborate with the new NSF Engineering Research Center for ... and clinical collaborators brought together to develop transformative tools and technologies for the ...
(Date:11/27/2018)... (PRWEB) , ... November 26, 2018 , ... ... Dr. Brandon Wuerth, MD, Founder of the website IBDwatch and Gastroenterology Fellow at ... leading scientists and doctors from around the world, Dr. Wuerth will bring to ...
Breaking Biology News(10 mins):
(Date:11/13/2018)... ... November 12, 2018 , ... Dr. Dan ... and Sandy Springs, now welcomes new patients for MTM® Clear Aligners. Offering a ... to traditional braces in the Sandy Springs and Alpharetta areas. Constantly on the ...
(Date:11/9/2018)... ... 2018 , ... uBiome, the leader in microbial genomics, announces ... of Andes Biotechnologies, to its Scientific Advisory Board. Joining the board of leading ... on the genetic studies of hepatitis viruses. The appointment will help uBiome continue ...
(Date:11/6/2018)... ... November 06, 2018 , ... Crucial ... trial data collection and management. TrialKit ™, an eClinical platform, has incorporated ... can quickly and easily sign in to the app via facial recognition or ...
(Date:11/3/2018)... Va. (PRWEB) , ... November 01, 2018 , ... ... first-ever Metrics Champion Consortium Summit. Dr. Jean Mulinde, Senior Advisor, Division of Clinical ... manage risk, monitor safety and ensure data reliability. , What should clinical research ...
Breaking Biology Technology:
Cached News: