• Arctic SDI catalogue
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High resolution forest change for Canada (Binary Change/No-change) 1985-2011

High resolution forest change for Canada (Binary Change/No-change) 1985-2011

The forest change data included in this product is national in scope (entire forested ecosystem) and represents the first wall-to-wall characterization of wildfire and harvest in Canada at a spatial resolution commensurate with human impacts. The information outcomes represent 27 years of stand replacing change in Canada’s forests, derived from a single, consistent spatially-explicit data source, derived in a fully automated manner. This demonstrated capacity to characterize forests at a resolution that captures human impacts is key to establishing a baseline for detailed monitoring of forested ecosystems from management and science perspectives.

Time series of Landsat data were used to characterize national trends in stand replacing forest disturbances caused by wildfire and harvest for the period 1985–2011 for Canada's 650 million hectare forested ecosystems (https://authors.elsevier.com/sd/article/S0034425717301360 ). Landsat data has a 30m spatial resolution, so the change information is highly detailed and is commensurate with that of human impacts. These data represent annual stand replacing forest changes. The stand replacing disturbances types labeled are wildfire and harvest, with lower confidence wildfire and harvest, also shared. The distinction and sharing of lower class membership likelihoods is to indicate to users that some change events were more difficult to allocate to a change type, but are generally found to be in the correct category. For an overview on the data, image processing, and time series change detection methods applied, as well as information on independent accuracy assessment of the data, see Hermosilla et al. (2016; http://www.tandfonline.com/doi/full/10.1080/17538947.2016.1187673 ).

The data available is, 1. a binary change/no-change; 2. Change year; and, 3. Change type.

When using this data, please cite as:

White, J.C., M.A. Wulder, T. Hermosilla, N.C. Coops, and G. Hobart. (2017). A nationwide annual characterization of 25 years of forest disturbance and recovery for Canada using Landsat time series. Remote Sensing of Environment. 192: 303-321. DOI: 10.1016/j.rse.2017.03.035. https://authors.elsevier.com/sd/article/S0034425717301360

Geographic extent:

Canada's forested ecosystems (~ 650 Mha)

Time period:

1985–2011

Simple

Date ( RI_367 )
2017
Date ( RI_366 )
2017
RI_415
  Government of Canada; Natural Resources Canada; Canadian Forest Service, Pacific Forestry Centre, Forest Geomatics - Dr. M.A.Wulder ( Research Scientist )
506 Burnside Road West , Victoria , British Columbia , V8R 2E4 , Canada
(250) 363-0600
(250) 363-6004
https://cfs.nrcan.gc.ca/employes/vue/mwulder
Hours of service
email only please
Status
onGoing; enContinue RI_596
Maintenance and update frequency
asNeeded; auBesoin RI_540
Government of Canada Core Subject Thesaurus Thésaurus des sujets de base du gouvernement du Canada ( RI_528 )
  • Forests
Use limitation
Open Government Licence - Canada (http://open.canada.ca/en/open-government-licence-canada)
Access constraints
otherRestrictions; autresRestrictions RI_609
Use constraints
intellectualPropertyRights; droitsPropriétéIntellectuelle RI_607
Other constraints
The data represents stand replacing disturbances that occurred between 1985 and 2011. Other changes may be present that are not portrayed here. To avoid confusion in areas with dynamic agricultural land use, an agricultural mask was used in the change detection process. Therefore, changes near agricultural areas may not be captured due to use of this exclusionary mask. An image compositing window of August 1 ± 30 days was used to generate the best-available-pixel (BAP) image composites used as the source data for change detection and attribution. As a result, changes occurring after August 31 may not always be mapped to the correct year; however a national independent accuracy assessment indicated that 97.7% of changes were labelled to within ± 1 year (Hermosilla et al. 2016; http://www.tandfonline.com/doi/full/10.1080/17538947.2016.118767 )
Spatial representation type
grid; grille RI_636
Metadata language
eng
Topic category
  • Geoscientific information
Begin date
1985
End date
2011
N
S
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Reference system identifier
http://www.epsg-registry.org / EPSG:3978 / 1.0
Distribution format
  • GeoTIF ( 1.0 )

RI_409
  Government of Canada; Natural Resources Canada; Canadian Forest Service, Pacific Forestry Centre, Forest Geomatics - Brian Low ( Manager, National Forest Information System )
506 Burnside Road West , Victoria , British Columbia , V8R 2E4 , Canada
(250) 363-0600
(250) 363-6004
https://ca.nfis.org/index_eng.html
Hours of service
email only please
OnLine resource
High Resolution Forest Change for Canada (English) ( HTTPS )

Application;HTML;eng

OnLine resource
High Resolution Forest Change for Canada (French) ( HTTPS )

Application;HTML;fra

OnLine resource
A nationwide annual characterization of 25 years of forest disturbance and recovery for Canada using Landsat time series ( HTTP )

Supporting Document;HTML;eng

OnLine resource
Change / No-Change ( OGC:WMS )

Web Service;WMS;fra

OnLine resource
C2C_change_nochange.zip ( HTTPS )

Dataset;ZIP;zxx

OnLine resource
Change / No Change ( OGC:WMS )

Web Service;WMS;eng

File identifier
7d8bd844-04f0-4b47-9864-857dff62215e XML
Metadata language
eng; CAN
Character set
utf8; utf8 RI_458
Hierarchy level
dataset; jeuDonnées RI_622
Date stamp
2019-01-10T18:05:23
Metadata standard name
North American Profile of ISO 19115:2003 - Geographic information - Metadata
Metadata standard version
CAN/CGSB-171.100-2009
RI_415
  Government of Canada; Natural Resources Canada; Canadian Forest Service, Pacific Forestry Centre, Forest Geomatics - Dr. M. A. Wulder ( Research Scientist )
506 West Burnside Road , Victoria , British Columbia , V8R 2E4 , Canada
(250) 363-0600
(250) 363-6004
https://cfs.nrcan.gc.ca/employes/vue/mwulder
Hours of service
email only please
 
 

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Spatial extent

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Keywords


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