Graphics Library >> Remote sensing

Tag: Remote sensing

Locations reported by various studies as undergoing high rates of land cover change in the past few decades
In the case of forest cover change, the studies refer to the period 1980–2000 and are based on national statistics, remote sensing, and to a limited degree expert opinion. In the case of land cover change resulting from ...
30 Nov 2007 - by Philippe Rekacewicz, Emmanuelle Bournay, UNEP/GRID-Arendal
Trends in Arctic sea ice extent in March (maximum) and September (minimum) in the time period of 1979–2008
For the Northern Hemisphere (primarily the Arctic), observations using remote sensing technologies have been used to measure the extent and the to assess the development. Despite considerable year-to-year variability, si...
18 Apr 2007 - by Hugo Ahlenius, UNEP/GRID-Arendal
Trends in Arctic sea-ice extent in March (maximum) and September (minimum) in the time period of 1979–2006
For the Northern Hemisphere (primarily the Arctic), observations using remote sensing technologies have been used to measure the extent and the to assess the development. Despite considerable year-to-year variability, si...
01 Jun 2007 - by Hugo Ahlenius, UNEP/GRID-Arendal
Glaciers monitored through the World Glacier Monitoring Service
Worldwide collection of information about ongoing glacier changes was initiated in 1894 with the foundation of the International Glacier Commission at the 6th International Geological Congress in Zurich, Switzerland. Tod...
01 Jun 2007 - by Hugo Ahlenius, UNEP/GRID-Arendal
Locations reported by various studies as undergoing high rates of land cover change in the past few decades
In the case of forest cover change, the studies refer to the period 1980–2000 and are based on national statistics, remote sensing, and, to a limited degree, expert opinion. In the case of land cover change resulting fro...
30 Nov 2007 - by Philippe Rekacewicz, Emmanuelle Bournay, UNEP/GRID-Arendal
Natural resources - marine resources
Primary ocean productivity, as measured in grammes of carbon per square meter, from remote sensing imagery outlines the areas with rich marine life. These areas are characterised by an abundance of marine life and they p...
01 Feb 2008 - by Hugo Ahlenius, UNEP/GRID-Arendal
Trends in Arctic vegetation productivity 1982-2005 (Greening of the Arctic)
Arctic vegetation has undergone enormous change in the past, most notably in response to the glacial and interglacial periods of the Quaternary. Data from many sources and at several scales suggest that recent climate ch...
17 Mar 2010 - by Hugo Ahlenius, GRID-Arendal & CAFF