© Hansen/UMD/Google/USGS/NASA
Forest loss during the period 2000–2018, defined as a stand-replacement disturbance, or a change from a forest to non-forest state. Data in this layer were generated using multi-spectral satellite imagery from the Landsat 7 thematic mapper plus (ETM+) sensor. The clear surface observations from over 600,000 images were analysed using Google Earth ...
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Forest lossGoogleGlobal
| Title: | Forest loss year (2000-2018) |
|---|---|
| Publication Year: | 2019 |
| Description: |
Forest loss during the period 2000–2018, defined as a stand-replacement disturbance, or a change from a forest to non-forest state. Data in this layer were generated using multi-spectral satellite imagery from the Landsat 7 thematic mapper plus (ETM+) sensor. The clear surface observations from over 600,000 images were analysed using Google Earth Engine, a cloud platform for earth observation and data analysis, to determine per pixel tree cover using a supervised learning algorithm. |
| Associated Publications: |
https://doi.org/10.1126/science.1244693 |
| External links to the project: |
https://earthenginepartners.appspot.com https://earthenginepartners.appspot.com/science-2013-global-forest/download_v1.7.html |
| License: | CC BY 4.0 |
Creator
| Name: | Matthew Hansen |
|---|---|
| E-mail: | mhansen@umd.edu |
| Organisation: | University of Maryland |
Contact
| Name: | Matthew Hansen |
|---|---|
| E-mail: | mhansen@umd.edu |
| Organisation: | University of Maryland |
Essential Biodiversity Variables (EBVs)
| EBV class | Ecosystem structure |
|---|---|
| EBV name | Ecosystem distribution |
Spatial domain
| Spatial extent: |
Global
W: -180.0
S: -90.0
E: 180.0
N: 90.0
|
|---|---|
| Spatial resolution: | 1000 meter |
| Spatial accuracy: | 1000 meter |
Temporal domain
| Temporal resolution: | Yearly |
|---|---|
| Temporal extent: | From 2000-01-01 to 2018-01-01 |
Biological entity
| Entity type: | Ecosystem Types |
|---|---|
| Classification System Name: | Forests |
Environmental domain
| Realm: | Terrestrial |
|---|
Metric
| Name: | Forest loss |
|---|---|
| Description: | Encoded as either 0 (no loss) or else a value in the range 1–18, representing loss detected primarily in the year 2001–2018, respectively. |
| Unit: | Year of gross forest cover loss event |
Scenario
No scenario provided |
| Description of resources: | Methodology available from https://science.sciencemag.org/content/sci/suppl/2013/11/14/342.6160.850.DC1/Hansen.SM.pdf |
|---|
Resources used to generate the data
| Resource 1 | |
| Name and version: | High-Resolution Global Maps of 21st-Century Forest Cover Change |
|---|---|
| Type: | Description of protocol |
| Access: | Open |
| Link: | https://doi.org/10.1126/science.1244693 |
| Reference: |
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