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High-Resolution Global Maps of 21st-Century Forest Cover Change
Intensive forestry practiced within subtropical forests resulted in the highest rates of forest change globally, and boreal forest loss due largely to fire and forestry was second to that in the tropics in absolute and proportional terms.
Global land cover classification at 1 km spatial resolution using a classification tree approach
This paper on reports the production of a 1 km spatial resolution land cover classification using data for 1992-1993 from the Advanced Very High Resolution Radiometer (AVHRR). This map will be…
Global Percent Tree Cover at a Spatial Resolution of 500 Meters: First Results of the MODIS Vegetation Continuous Fields Algorithm
- M. Hansen, R. DeFries, J. Townshend, M. Carroll, C. DiMiceli, R. Sohlberg
- Environmental Science, Mathematics
- 1 October 2003
Abstract The first results of the Moderate Resolution Imaging Spectroradiometer (MODIS) vegetation continuous field algorithm's global percent tree cover are presented. Percent tree cover per 500-m…
Habitat fragmentation and its lasting impact on Earth’s ecosystems
An analysis of global forest cover is conducted to reveal that 70% of remaining forest is within 1 km of the forest’s edge, subject to the degrading effects of fragmentation, indicating an urgent need for conservation and restoration measures to improve landscape connectivity.
An assessment of support vector machines for land cover classification
An introduction to the theoretical development of the SVM and an experimental evaluation of its accuracy, stability and training speed in deriving land cover classifications from satellite images are given.
Carbon emissions from tropical deforestation and regrowth based on satellite observations for the 1980s and 1990s
- R. DeFries, R. Houghton, M. Hansen, C. Field, D. Skole, J. Townshend
- Environmental ScienceProceedings of the National Academy of Sciences…
- 16 October 2002
The results indicate that the net rate of tropical forest clearing increased ≈10% from the 1980s to 1990s, most notably in southeast Asia, in contrast to an 11% reduction reported by the FRA.
The Moderate Resolution Imaging Spectroradiometer (MODIS): land remote sensing for global change research
- C. Justice, E. Vermote, M. Barnsley
- Environmental Science, MathematicsIEEE Trans. Geosci. Remote. Sens.
- 1 July 1998
The proposed MODIS standard products for land applications are described along with the current plans for data quality assessment and product validation.
An overview of MODIS Land data processing and product status
Humid tropical forest clearing from 2000 to 2005 quantified by using multitemporal and multiresolution remotely sensed data
- M. Hansen, S. Stehman, C. DiMiceli
- Environmental ScienceProceedings of the National Academy of Sciences
- 8 July 2008
Results of a feasible and cost-effective monitoring strategy are presented that enable timely, precise, and internally consistent estimates of forest clearing within the humid tropics.
NDVI-derived land cover classifications at a global scale
Abstract Phenological differences among vegetation types, reflected in temporal variations in the Normalized Difference Vegetation Index (NDVI) derived from satellite data, have been used to classify…