Date ( Publication )

2016-01-25T00:00:00

Presentation form

Digital map

Purpose

.

Status

Completed

Maintenance and update frequency

Not planned

Keywords ( Theme )

• GRID core datasets
• global
• deforestation
• forest
• tree
• vegetation

Keywords ( Place )

• World

Access constraints

License

Use constraints

License

Other constraints

This work is licensed under a Creative Commons Attribution 4.0 International License. You are free to copy and redistribute the material in any medium or format, and to transform and build upon the material for any purpose, even commercially. You must give appropriate credit, provide a link to the license, and indicate if changes were made.

Use the following credit when these data are displayed:

Source: Hansen/UMD/Google/USGS/NASA

Other constraints

Use the following credit when these data are cited:

Hansen, M. C., P. V. Potapov, R. Moore, M. Hancher, S. A. Turubanova, A. Tyukavina, D. Thau, S. V. Stehman, S. J. Goetz, T. R. Loveland, A. Kommareddy, A. Egorov, L. Chini, C. O. Justice, and J. R. G. Townshend. 2013. “High-Resolution Global Maps of 21st-Century Forest Cover Change.” Science 342 (15 November): 850–53. Data available on-line from: http://earthenginepartners.appspot.com/science-2013-global-forest.

Spatial representation type

Grid

Denominator

2500

Metadata language

eng

Character set

UTF8

Topic category

• Biota

Begin date

2000

End date

2014

Supplemental Information

This global dataset is divided into 10x10 degree tiles, consisting of seven files per tile. All files contain unsigned 8-bit values and have a spatial resolution of 1 arc-second per pixel, or approximately 30 meters per pixel at the equator.

Tree canopy cover for year 2000 (treecover2000)

Tree cover in the year 2000, defined as canopy closure for all vegetation taller than 5m in height. Encoded as a percentage per output grid cell, in the range 0–100.

Global forest cover loss 2000–2014 (loss)

Forest loss during the period 2000–2014, defined as a stand-replacement disturbance, or a change from a forest to non-forest state. Encoded as either 1 (loss) or 0 (no loss).

Global forest cover gain 2000–2012 (gain)

Forest gain during the period 2000–2012, defined as the inverse of loss, or a non-forest to forest change entirely within the study period. Encoded as either 1 (gain) or 0 (no gain).

Year of gross forest cover loss event (lossyear)

A disaggregation of total forest loss to annual time scales. Encoded as either 0 (no loss) or else a value in the range 1–13, representing loss detected primarily in the year 2001–2014, respectively.

Data mask (datamask)

Three values representing areas of no data (0), mapped land surface (1), and permanent water bodies (2).

Circa year 2000 Landsat 7 cloud-free image composite (first)

Reference multispectral imagery from the first available year, typically 2000. If no cloud-free observations were available for year 2000, imagery was taken from the closest year with cloud-free data, within the range 1999–2012.

Circa year 2014 Landsat cloud-free image composite (last)

Reference multispectral imagery from the last available year, typically 2014. If no cloud-free observations were available for year 2014, imagery was taken from the closest year with cloud-free data, within the range 2010–2012.

Reference system identifier

WGS 1984

OnLine resource

Forest change - 30m ( WWW:LINK-1.0-http--link )

Data Access (10x10 degree tiles)

OnLine resource

Global forest change ( WWW:LINK-1.0-http--link )

Link to original data viewer

Hierarchy level

Dataset

Metadata

File identifier

e7f8a3db-fd3b-434c-88c0-e6b058cbb9cd XML

Metadata language

eng

Character set

UTF8

Date stamp

2017-03-07T13:50:32

Metadata standard name

ISO 19115:2003/19139

Metadata standard version

1.0