Annual High-resolution forest land cover for Canada (1984-2022)

Description

High-resolution annual forest land cover maps for Canada's forested ecosystems (1984-2022). It is developed within the framework of Canada’s National Terrestrial Ecosystem Monitoring System (NTEMS). The annual time series of forest land cover maps are national in scope (entire 650 million hectare forested ecosystem) and represent a wall-to-wall land cover characterization yearly from 1984 to 2022. These time-series land cover maps were produced from annual time-series of Landsat image composites, forest change information, and ancillary topographic and hydrologic data following the framework described in Hermosilla et al. (2022), which builds upon the approach introduced in Hermosilla et al. (2018). The methodological innovations included (i) a refined training pool derived from existing land cover products using airborne and spaceborne measures of forest structure; (ii) selection of training samples proportionally to the land cover distribution using a distance-weighted approach; and (iii) generation of regional classification models using a 150x150 km tiling system. Maps are post-processed using disturbance information to ensure logical class transitions over time using a Hidden Markov Model. Hidden Markov Models assess individual year class likelihoods to reduce variability and possible noise in year-on-year class assignments (for instances when class likelihoods are similar). Hermosilla, T., Wulder, M.A., White, J.C., Coops, N.C., 2022. Land cover classification in an era of big and open data: Optimizing localized implementation and training data selection to improve mapping outcomes. Remote Sensing of Environment. Vol. 268, No. 112780. https://doi.org/10.1016/j.rse.2021.112780. (Hermosilla et al. 2022) Hermosilla, T., M.A. Wulder, J.C. White, N.C. Coops, G. W. Hobart, (2018). Disturbance-Informed Annual Land Cover Classification Maps of Canada's Forested Ecosystems for a 29-Year Landsat Time Series. Canadian Journal of Remote Sensing. 44(1) 67-87.DOI: 10.1080/07038992.2018.1437719 (Hermosilla et al. 2018).

Resources

Name Format Description Link
Characterizing long-term tree species dynamics in Canada's forested ecosystems using annual time series remote sensing data. PDF https://doi.org/10.1016/j.foreco.2024.122313
CA_forest_VLCE2_1984.zip ZIP https://opendata.nfis.org/downloads/forest_change/CA_forest_VLCE2_1984.zip
CA_forest_VLCE2_1985.zip ZIP https://opendata.nfis.org/downloads/forest_change/CA_forest_VLCE2_1985.zip
CA_forest_VLCE2_1986.zip ZIP https://opendata.nfis.org/downloads/forest_change/CA_forest_VLCE2_1986.zip
CA_forest_VLCE2_1987.zip ZIP https://opendata.nfis.org/downloads/forest_change/CA_forest_VLCE2_1987.zip
CA_forest_VLCE2_1988.zip ZIP https://opendata.nfis.org/downloads/forest_change/CA_forest_VLCE2_1988.zip
CA_forest_VLCE2_1989.zip ZIP https://opendata.nfis.org/downloads/forest_change/CA_forest_VLCE2_1989.zip
CA_forest_VLCE2_1990.zip ZIP https://opendata.nfis.org/downloads/forest_change/CA_forest_VLCE2_1990.zip
CA_forest_VLCE2_1991.zip ZIP https://opendata.nfis.org/downloads/forest_change/CA_forest_VLCE2_1991.zip
CA_forest_VLCE2_1992.zip ZIP https://opendata.nfis.org/downloads/forest_change/CA_forest_VLCE2_1992.zip
CA_forest_VLCE2_1993.zip ZIP https://opendata.nfis.org/downloads/forest_change/CA_forest_VLCE2_1993.zip
CA_forest_VLCE2_1994.zip ZIP https://opendata.nfis.org/downloads/forest_change/CA_forest_VLCE2_1994.zip
CA_forest_VLCE2_1995.zip ZIP https://opendata.nfis.org/downloads/forest_change/CA_forest_VLCE2_1995.zip
CA_forest_VLCE2_1996.zip ZIP https://opendata.nfis.org/downloads/forest_change/CA_forest_VLCE2_1996.zip
CA_forest_VLCE2_1997.zip ZIP https://opendata.nfis.org/downloads/forest_change/CA_forest_VLCE2_1997.zip
CA_forest_VLCE2_1998.zip ZIP https://opendata.nfis.org/downloads/forest_change/CA_forest_VLCE2_1998.zip
CA_forest_VLCE2_1999.zip ZIP https://opendata.nfis.org/downloads/forest_change/CA_forest_VLCE2_1999.zip
CA_forest_VLCE2_2000.zip ZIP https://opendata.nfis.org/downloads/forest_change/CA_forest_VLCE2_2000.zip
CA_forest_VLCE2_2001.zip ZIP https://opendata.nfis.org/downloads/forest_change/CA_forest_VLCE2_2001.zip
CA_forest_VLCE2_2002.zip ZIP https://opendata.nfis.org/downloads/forest_change/CA_forest_VLCE2_2002.zip
CA_forest_VLCE2_2003.zip ZIP https://opendata.nfis.org/downloads/forest_change/CA_forest_VLCE2_2003.zip
CA_forest_VLCE2_2004.zip ZIP https://opendata.nfis.org/downloads/forest_change/CA_forest_VLCE2_2004.zip
CA_forest_VLCE2_2005.zip ZIP https://opendata.nfis.org/downloads/forest_change/CA_forest_VLCE2_2005.zip
CA_forest_VLCE2_2006.zip ZIP https://opendata.nfis.org/downloads/forest_change/CA_forest_VLCE2_2006.zip
CA_forest_VLCE2_2007.zip ZIP https://opendata.nfis.org/downloads/forest_change/CA_forest_VLCE2_2007.zip
CA_forest_VLCE2_2008.zip ZIP https://opendata.nfis.org/downloads/forest_change/CA_forest_VLCE2_2008.zip
CA_forest_VLCE2_2009.zip ZIP https://opendata.nfis.org/downloads/forest_change/CA_forest_VLCE2_2009.zip
CA_forest_VLCE2_2010.zip ZIP https://opendata.nfis.org/downloads/forest_change/CA_forest_VLCE2_2010.zip
CA_forest_VLCE2_2011.zip ZIP https://opendata.nfis.org/downloads/forest_change/CA_forest_VLCE2_2011.zip
CA_forest_VLCE2_2012.zip ZIP https://opendata.nfis.org/downloads/forest_change/CA_forest_VLCE2_2012.zip
CA_forest_VLCE2_2013.zip ZIP https://opendata.nfis.org/downloads/forest_change/CA_forest_VLCE2_2013.zip
CA_forest_VLCE2_2014.zip ZIP https://opendata.nfis.org/downloads/forest_change/CA_forest_VLCE2_2014.zip
CA_forest_VLCE2_2015.zip ZIP https://opendata.nfis.org/downloads/forest_change/CA_forest_VLCE2_2015.zip
CA_forest_VLCE2_2016.zip ZIP https://opendata.nfis.org/downloads/forest_change/CA_forest_VLCE2_2016.zip
CA_forest_VLCE2_2017.zip ZIP https://opendata.nfis.org/downloads/forest_change/CA_forest_VLCE2_2017.zip
CA_forest_VLCE2_2018.zip ZIP https://opendata.nfis.org/downloads/forest_change/CA_forest_VLCE2_2018.zip
CA_forest_VLCE2_2019.zip ZIP https://opendata.nfis.org/downloads/forest_change/CA_forest_VLCE2_2019.zip
CA_forest_VLCE2_2020.zip ZIP https://opendata.nfis.org/downloads/forest_change/CA_forest_VLCE2_2020.zip
CA_forest_VLCE2_2021.zip ZIP https://opendata.nfis.org/downloads/forest_change/CA_forest_VLCE2_2021.zip
CA_forest_VLCE2_2022.zip ZIP https://opendata.nfis.org/downloads/forest_change/CA_forest_VLCE2_2022.zip
CA_forest_VLCE2_2022 WMS https://opendata.nfis.org/mapserver/cgi-bin/wms_change.cgi?request=GetCapabilities&service=WMS&version=1.3.0&layers=CA_forest_VLCE2_2022&legend_format=image%2Fpng&feature_info_type=text%2Fhtml
CA_forest_VLCE2_2022 WMS https://opendata.nfis.org/mapserver/cgi-bin/wms_change_fra.cgi?request=GetCapabilities&service=WMS&version=1.3.0&layers=CA_forest_VLCE2_2022&legend_format=image%2Fpng&feature_info_type=text%2Fhtml
Satellite Forest Information for Canada HTML https://opendata.nfis.org/mapserver/nfis-change_eng.html
Satellite Forest Information for Canada HTML https://opendata.nfis.org/mapserver/nfis-change_fra.html
A nationwide annual characterization of 25 years of forest disturbance and recovery for Canada using Landsat time series PDF https://www.sciencedirect.com/science/article/pii/S0034425717301360?via%3Dihub
Updating Landsat time series of surface-reflectance composites and forest change products with new observations PDF https://www.sciencedirect.com/science/article/pii/S0303243417301599?via%3Dihub
Disturbance-Informed Annual Land Cover Classification Maps of Canada's Forested Ecosystems for a 29-Year Landsat Time Series PDF https://www.tandfonline.com/doi/full/10.1080/07038992.2018.1437719
Mass data processing of time series Landsat imagery: pixels to data products for forest monitoring PDF https://www.tandfonline.com/doi/full/10.1080/17538947.2016.1187673

Tags

Topics

Categories