North America Blue Carbon (Salt Marsh)

Overview This map layer prepared by the Commission for Environmental Cooperation (CEC) presents the cumulative impact of human activities on marine ecosystems across North America based on Halpern et al. 2008. A global map of human impact on marine ecosystems. Science 319 (5865): 948–952. To generate this map, a research team collected or created global maps of 17 different human activities, such as fishing and pollution, that have an impact on marine ecosystems, as well as maps of different marine ecosystems. The team quantified the vulnerability of each marine ecosystem to the different human activities, and this map of human impacts was made by combining the threat maps and the vulnerability scores. Geographic Coverage The coverage spans North American marine areas, including the Atlantic, Pacific, and Arctic Oceans, the Gulf of Mexico, and the Caribbean Sea. Data Sources and Licensing Commission for Environmental Cooperation (CEC), National Center for Ecological Analysis and Synthesis, Halpern et al. (2008). The data is licensed under a Creative Commons Attribution 4.0 International License (CC BY 4.0), allowing redistribution and adaptation with appropriate attribution. Update frequency: Not planned Limitations of use: Acknowledgment of the Commission for Environmental Cooperation and/or the National Center for Ecological Analysis and Synthesis is appreciated in products derived from these data. Vintage: 2007–2008 Applications (Intended Use) Marine spatial planning and ecosystem-based management. Allocation of conservation resources and identification of priority areas for protection. Assessing cumulative human pressures on ocean ecosystems for research and education. Supporting cross-border environmental cooperation and policy-making among North American nations. Files Download

Overview This Feature Service presents comprehensive bathymetric data for ocean areas within North America, resulting from a collaborative effort between the national atlas programs of Canada, Mexico, and the United States, in partnership with the North American Commission for Environmental Cooperation (CEC). The service provides standardized geospatial data at a 1:10,000,000 scale, forming part of the North American Environmental Atlas. Feature Layers NA Bathymetry Lines: This layer depicts isobaths, or lines of equal ocean depth, providing detailed measurements at key depths including sea level (coastline), 200, 500, and 2500 meters. It helps visualize depth contours relevant for oceanographic studies and marine navigation. NA Bathymetry Polygons: This layer complements the lines by delineating polygonal areas that represent depth ranges such as 0-200, 200-500, 500-2500, and depths greater than 2500 meters. These polygons assist in understanding the distribution of ocean depths in the region. Geographic Coverage The data covers oceanic and coastal regions of Canada, Mexico, and the United States, with supplementary contextual data for adjacent areas beyond these countries to complete the geographic context. Data Sources and Licensing The data is a product of joint efforts from federal agencies including Natural Resources Canada, Instituto Nacional de Estadística y Geografía in Mexico, and the U.S. Geological Survey. It is licensed under Creative Commons Attribution 4.0 International License (CC BY 4.0), allowing redistribution and adaptation with appropriate attribution. Update frequency: Irregular Limitations of use: Intended for continental-scale reference. Vintage: The information presented in the map layer represents the available input data in 2010 Applications (Intended Use) Environmental planning and management in coastal and marine ecosystems. Marine navigation and oceanographic research. Integration with other thematic layers in the North American Environmental Atlas for comprehensive continental analysis. Supporting cross-border environmental cooperation and policy-making among North American nations. Files Download

Overview This 30-meter dataset reflects land cover information for 2010 from Mexico and Canada, and 2011 for Alaska and the conterminous United States. Each country developed its own classification method to identify land cover classes and provided an input layer to produce a continental land cover map across North America. The main inputs for image classification were 30-meter Landsat data; image selection varied by country according to site-specific requirements. Canada selected most images from 2010, with a few from 2009 and 2011; the United States primarily used 2011 imagery; and Mexico used all available images from 2010. National maps were generated for Canada by the Canada Centre for Remote Sensing (CCRS); for Mexico by the National Commission for the Knowledge and Use of Biodiversity (Comisión Nacional para el Conocimiento y Uso de la Biodiversidad), National Institute of Statistics and Geography (Instituto Nacional de Estadística y Geografía), and National Forestry Commission of Mexico (Comisión Nacional Forestal); and for the United States by the United States Geological Survey. Each country used its own approach, ancillary data, and mapping methodology, and the national datasets were then combined by the Commission for Environmental Cooperation (CEC) into a seamless North American product, merging four map sections: Alaska, Canada, the conterminous United States, and Mexico. The current version (version 3) includes updated data over Canada, provided by the CCRS and the Canada Centre for Mapping and Earth Observation (CCMEO) in February 2024, along with updated 2011 land cover datasets for Alaska and the conterminous United States, provided by the USGS in February 2024. The main change in Alaska relates to the inclusion of an improved road network. No updates were performed over Mexico for this version. Land Cover Classes The raster attribute table provides 19 thematic land cover classes plus a background value, with class names in English, Spanish, and French: 1: Temperate or sub-polar needleleaf forest 2: Sub-polar taiga needleleaf forest 3: Tropical or sub-tropical broadleaf evergreen forest 4: Tropical or sub-tropical broadleaf deciduous forest 5: Temperate or sub-polar broadleaf deciduous forest 6: Mixed forest 7: Tropical or sub-tropical shrubland 8: Temperate or sub-polar shrubland 9: Tropical or sub-tropical grassland 10: Temperate or sub-polar grassland 11: Sub-polar or polar shrubland-lichen-moss 12: Sub-polar or polar grassland-lichen-moss 13: Sub-polar or polar barren-lichen-moss 14: Wetland 15: Cropland 16: Barren lands 17: Urban and built-up 18: Water 19: Snow and ice Geographic Coverage The service covers Canada, the United States, and Mexico, including Alaska. Data Sources and Licensing This dataset is produced by the Commission for Environmental Cooperation (CEC), derived from national land cover maps provided by Natural Resources Canada, the National Commission for the Knowledge and Use of Biodiversity, the National Institute of Statistics and Geography, the National Forestry Commission; and the United States Geological Survey. The compiled dataset is licensed under a Creative Commons Attribution 4.0 International License (CC BY 4.0), allowing redistribution and adaptation with appropriate attribution. Update frequency: Irregular Limitations of use: Intended for continental-scale reference. Vintage: 2010 Applications (Intended Use) Land cover review and continental- to national-scale mapping. Environmental monitoring and change detection over time. Spatial analysis and integration with other thematic layers in the North American Environmental Atlas. Supporting cross-border environmental cooperation and policy-making among North American nations. Files Download

Overview This layer maps the ecological scorecard sites for marine protected areas (MPAs) across North America as part of the Commission for Environmental Cooperation (CEC) North American Environmental Atlas. To assess the environmental conditions of MPAs, experts developed an Ecological Assessment Scorecard methodology that distills large amounts of complex technical and traditional/local ecological knowledge about MPA conditions. These scorecards are an easy yet powerful tool for MPA managers to share evidence-based ecological information about water, habitat, and living resources. The scorecard for each MPA is based on standard questions about three key themes (water, habitat, and living resources) to describe environmental health. Conditions for each ecosystem element addressed by the questions are defined on a five-point scale, ranging from superior (best it could be) to critical (worst it could be). Trends in conditions are likewise defined in five categories, ranging from rapidly improving to rapidly diminishing (likely to reach a different state in five years), with stable indicating conditions unlikely to change beyond normal variation. Geographic Coverage This layer covers the ecological scorecard sites for marine protected areas in the Bering Sea to Baja California (B2B) region, spanning Canada, the United States, and Mexico. Data Sources and Licensing Commission for Environmental Cooperation (CEC) and NOAA Marine Protected Areas Center. This material is licensed under CC BY 4.0, allowing non-exclusive rights to distribute, remix, adapt, and build upon the material in any medium or format, including for commercial purposes, so long as attribution is given to the creator. Update frequency: Irregular Limitations of use: None. Acknowledgement of the Commission for Environmental Cooperation and NOAA Marine Protected Areas Center would be appreciated in products derived from these data. Vintage: 2008 Applications (Intended Use) Sharing evidence-based ecological information about water, habitat, and living resources conditions within marine protected areas. Supporting MPA managers in tracking ecological conditions and trends over time. Research, education, monitoring, and reporting on the ecological health of North American marine protected areas. Reference framework for comparing environmental conditions across MPAs in the Bering Sea to Baja California (B2B) region. Integration with other thematic layers in the North American Environmental Atlas for comprehensive continental analysis. Supporting cross-border environmental cooperation and policy-making among North American nations. Files Download

Overview This 30-meter dataset reflects land cover information for 2020 from Mexico and Canada, and 2021 over the conterminous United States and Alaska. Each country developed its own classification method to identify land cover classes and provided an input layer to produce a continental land cover map across North America. The main inputs for image classification were 30-meter Landsat 8 Collection 2 Level 1 data across the three countries; image selection and spectral band reduction varied by country according to site-specific requirements. Canada selected most images from 2020, with a few from 2019 and 2021; the conterminous United States and Alaska relied mainly on 2021 imagery; and the Mexico map was based on change detection between 2015 and 2020 Landsat 8 mosaics. National maps were generated for Canada by the Canada Centre for Remote Sensing (CCRS); for Mexico by the National Commission for the Knowledge and Use of Biodiversity (Comisión Nacional para el Conocimiento y Uso de la Biodiversidad), National Institute of Statistics and Geography (Instituto Nacional de Estadística y Geografía), and National Forestry Commission of Mexico (Comisión Nacional Forestal); and for the United States by the United States Geological Survey. Each country used its own approach, ancillary data, and mapping methodology, and the national datasets were then combined by the Commission for Environmental Cooperation (CEC) into a seamless North American product, merging four map sections: Alaska, Canada, the conterminous United States, and Mexico. The current version (version 2) integrates updated land cover information for the conterminous United States, Alaska, and Canada, based on national maps updated in February 2024 by the USGS and CCRS. Unlike version 1, where the conterminous United States represented 2019 conditions, this version corresponds to 2021. Land Cover Classes The raster attribute table provides 19 thematic land cover classes plus a background value, with class names in English, Spanish, and French: 1: Temperate or sub-polar needleleaf forest 2: Sub-polar taiga needleleaf forest 3: Tropical or sub-tropical broadleaf evergreen forest 4: Tropical or sub-tropical broadleaf deciduous forest 5: Temperate or sub-polar broadleaf deciduous forest 6: Mixed forest 7: Tropical or sub-tropical shrubland 8: Temperate or sub-polar shrubland 9: Tropical or sub-tropical grassland 10: Temperate or sub-polar grassland 11: Sub-polar or polar shrubland-lichen-moss 12: Sub-polar or polar grassland-lichen-moss 13: Sub-polar or polar barren-lichen-moss 14: Wetland 15: Cropland 16: Barren lands 17: Urban and built-up 18: Water 19: Snow and ice Geographic Coverage The service covers Canada, the United States, and Mexico, including Alaska. Data Sources and Licensing This dataset is produced by the Commission for Environmental Cooperation (CEC), derived from national land cover maps provided by Natural Resources Canada, the National Commission for the Knowledge and Use of Biodiversity, the National Institute of Statistics and Geography, the National Forestry Commission; and the United States Geological Survey. The compiled dataset is licensed under a Creative Commons Attribution 4.0 International License (CC BY 4.0), allowing redistribution and adaptation with appropriate attribution. Update frequency: Irregular Limitations of use: Intended for continental-scale reference. Vintage: 2020 Applications (Intended Use) Land cover review and continental- to national-scale mapping. Environmental monitoring and change detection over time. Spatial analysis and integration with other thematic layers in the North American Environmental Atlas. Supporting cross-border environmental cooperation and policy-making among North American nations. Files Download

Overview This layer shows different wetland types, as well as lakes and rivers, across North America. The map was made using the Global Lakes and Wetlands Database (GLWD) Level 3, which was created using a variety of the best available sources for lakes and wetlands on a global scale. Level 3 of the Global Lakes and Wetlands Database (GLWD) comprises lakes, reservoirs, rivers, and different wetland types in the form of a global raster map. GLWD-3 may serve as an estimate of wetland extents for global hydrology and climatology models, or to identify large-scale wetland distributions and important wetland complexes. Source: Lehner, B., and P. Döll. 2004. Development and validation of a global database of lakes, reservoirs and wetlands. Journal of Hydrology 296/1-4: 1–22. Geographic Coverage This layer covers all of North America, including Canada, Mexico, and the United States. Data Sources and Licensing This dataset integrates the Global Lakes and Wetlands Database, Level 3 (World Wildlife Fund US). This material is licensed under CC BY 4.0, allowing non-exclusive rights to distribute, remix, adapt, and build upon the material in any medium or format, including for commercial purposes, so long as attribution is given to the creator. Update frequency: Irregular Limitations of use: None. Acknowledgement of the Commission for Environmental Cooperation and the World Wildlife Fund US would be appreciated in products derived from these data. Vintage: 2004 Applications (Intended Use) Global hydrology and climatology modeling. Identification of large-scale wetland distributions and important wetland complexes. Water resource assessment and monitoring. Integration with other thematic layers in the North American Environmental Atlas for comprehensive continental analysis. Supporting cross-border environmental cooperation and policy-making among North American nations. Files Download