# North American Environmental Atlas - Wetlands, 2004

TypeTIFF

TagsNorth America, América del Norte, Amérique du Nord, Wetlands, Humedales, Terres humides, Canada, Canadá, United States, Estados Unidos, États-Unis, Mexico, México, Mexique, CEC, CCA, CCE

### Summary

    This map 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), which was created using a variety of the best available sources for lakes and wetlands on a global scale.

### Description

    This map 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 at 30-sec resolution. 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. Global Lakes and Wetlands Database available through World Wildlife Fund (WWF).Files Download

### Credits

    Commission for Environmental Cooperation (CEC). 2004. “North American Environmental Atlas - Wetlands”. World Wildlife Fund US, Global Lakes and Wetlands Database, Level 3. Ed. 1.0, Vector digital data [1:10,000,000]. Lehner, B. and Doell, P. (2004): Development and validation of a global database of lakes, reservoirs and wetlands. Journal of Hydrology 296/1-4: 1-22.

### Use limitations

    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.

### Extent

West | -180 | East | -50
North | 85 | South | -14

### Scale Range

Maximum (zoomed in) | 1:5,000
Minimum (zoomed out) | 1:150,000,000

### Topics and Keywords ▼►

Themes or categories of the resourceEnvironment, Inland Waters
Content type ⇔Downloadable Data
  Export to FGDC CSDGM XML format as Resource DescriptionNo
Theme keywordsNorth American Environmental Atlas > Terrestrial Ecosystems > Lakes, North American Environmental Atlas > Terrestrial Ecosystems > Wetlands
  Thesaurus ▼►
    TitleNorth American Environmental Atlas
    Publication date2004-07-19 00:00:00
    Responsible party - publisher
      Organization's nameCommission for Environmental Cooperation (CEC)
        Contact information ▼►
          Phone
            Voice+1 514 350 4300
            Fax+1 438 701 1434
          Address
            Typephysical
            Delivery point1001 Robert-Bourassa Boulevard, Suite 1620
            CityMontreal
            Administrative areaQuebec
            Postal codeH3B 4L4
            CountryCA
            e-mail address info@cec.org
          Online resource
            Online location (URL) https://www.cec.org/north-american-environmental-atlas/
Place keywordsMid-latitude, Western Hemisphere, Northern Hemisphere, North America, Canada, Mexico, United States
  Thesaurus ▼►
    TitleNorth American Environmental Atlas
    Publication date2004-07-19 00:00:00
    Responsible party - publisher
      Organization's nameCommission for Environmental Cooperation (CEC)
        Contact information ▼►
          Phone
            Voice+1 514 350 4300
            Fax+1 438 701 1434
          Address
            Typephysical
            Delivery point1001 Robert-Bourassa Boulevard, Suite 1620
            CityMontreal
            Administrative areaQuebec
            Postal codeH3B 4L4
            CountryCA
            e-mail address info@cec.org
          Online resource
            Online location (URL) https://www.cec.org/north-american-environmental-atlas/
Temporal keywords2004

### Citation ▼►

TitleNorth American Environmental Atlas - Wetlands, 2004
Publication date2004-07-19 00:00:00
Edition1
Presentation formats ⇔digital map
FGDC geospatial presentation formatvector digital data
Resource identifier
  ValueNAatlas_1.08

### Citation Contacts ▼►

Responsible party - point of contact
  Individual's nameDominique Croteau
  Organization's nameCommission for Environmental Cooperation (CEC)
  Contact's positionProject Lead, Geospatial and Environmental Information
    Contact information ▼►
      Phone
        Voice+1 514 350 4300
        Fax+1 438 701 1434
      Address
        Typephysical
        Delivery point1001 Robert-Bourassa Boulevard, Suite 1620
        CityMontreal
        Administrative areaQuebec
        Postal codeH3B 4L4
        e-mail address info@cec.org
Responsible party - resource provider
  Organization's nameWorld Wildlife Fund US
    Contact information ▼►
      Address
        Typephysical
        Delivery point1250 24th Street NW
        CityWashington
        Administrative areaDistrict of Columbia
        Postal code20037
        CountryUS
        e-mail address bernhard.lehner@wwfus.org
      Online resource
        Online location (URL) http://www.wwfus.org/science/data.cfm
      Contact instructions

            Contact Person: Bernhard Lehner

Responsible party - publisher
  Organization's nameCommission for Environmental Cooperation (CEC)
    Contact information ▼►
      Phone
        Voice+1 514 350 4300
        Fax+1 438 701 1434
      Address
        Typephysical
        Delivery point1001 Robert-Bourassa Boulevard, Suite 1620
        CityMontreal
        Administrative areaQuebec
        Postal codeH3B 4L4
        CountryCA
        e-mail address info@cec.org
      Online resource
        Online location (URL) https://www.cec.org/north-american-environmental-atlas/

### Locales ▼►

LocaleEnglish (UNITED STATES)
  TitleWetlands
  Abstract (Description)

        This map 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), which was created using a variety of the best available sources for lakes and wetlands on a global scale.

        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. Global Lakes and Wetlands Database available through World Wildlife Fund (WWF).

LocaleSpanish; Castilian (MEXICO)
  TitleHumedales
  Abstract (Description)

        Este mapa muestra diversas clases de humedales, además de lagos y ríos, de América del Norte.

        El mapa se elaboró usando la Base de Datos Mundial de Lagos y Humedales (Global Lakes and Wetlands Database, GLWD), creada a partir de una variedad de las mejores fuentes disponibles con datos sobre lagos y humedales en escala mundial.
        Fuente: B. Lehner y P. Döll, «Development and validation of a global database of lakes, reservoirs and wetlands», Journal of Hydrology 296/1-4: 1-22, 2004.

        La Base de Datos Mundial de Lagos y Humedales (Global Lakes and Wetlands Database, GLWD) puede consultarse en el sitio web del Fondo Mundial para la Conservación de la Naturaleza (WWF).

LocaleFrench (CANADA)
  TitleTerres humides
  Abstract (Description)

        Cette carte montre les différents types de terres humides, ainsi que les lacs et les cours d’eau de l’ensemble de l’Amérique du Nord.

        On l’a créée en utilisant la Global Lakes and Wetlands Database (GLWD), constituée à partir de certaines des sources de données les plus fiables au monde à propos des lacs et des terres humides.

        Source : Lehner, B. et P. Döll. Development and validation of a global database of lakes, reservoirs and wetlands, Journal of Hydrology 296/1-4, p. 1-22, 2004. On peut également consulter la Global Lakes and Wetlands Database par l’intermédiaire du Fonds mondial pour la nature (WWF).

### Resource Details ▼►

Dataset languages ⇔English (UNITED STATES)
Dataset character setutf8 - 8 bit UCS Transfer Format
Statuscompleted
Spatial representation type ⇔grid
Spatial resolution
  Dataset's scale
    Scale denominator417.126323
  Ground sample distance
    Precision of spatial datam (meter)
Supplemental information

      The Commission for Environmental Cooperation (CEC) is an international organization created by Canada, Mexico, and the United States of America under the North American Agreement on Environmental Cooperation (NAAEC), which came into force at the same time as the North American Free Trade Agreement (NAFTA). The CEC was established to address regional environmental concerns, help prevent potential trade and environmental conflicts, and to promote the effective enforcement of environmental law. As of 2020, the CEC operates in accordance with the Environmental Cooperation Agreement, which entered into force at the same time as the CUSMA/T-MEC/USMCA trade agreement.

      This data set is available in several formats, including Shapefile, Map package, and a PDF Map, along with other files appropriate to particular format, such as .lyrx and .qlr files.

Processing environment ⇔Windows 11 Pro; Version 24H2; OS build 26100.3775; Experience Windows Feature Experience Pack 1000.26100.66.0 -- ArcGIS Pro 3.4.3
Credits

      Commission for Environmental Cooperation (CEC). 2004. “North American Environmental Atlas - Wetlands”. World Wildlife Fund US, Global Lakes and Wetlands Database, Level 3. Ed. 1.0, Vector digital data [1:10,000,000]. Lehner, B. and Doell, P. (2004): Development and validation of a global database of lakes, reservoirs and wetlands. Journal of Hydrology 296/1-4: 1-22.

ArcGIS item properties
  Name ⇔na_wetlands.tif
  Location ⇔file://E:\Dropbox\CEC\01_CEC_Env_Atlas_Base\1_Terrestrial_Ecosystems\1_08_Wetlands_2004\02_Deliverables\NA_Wetlands_TIF\NA_Wetlands_2004\data\na_wetlands.tif
    Access protocol ⇔Local Area Network

### Extents ▼►

Extent
  Description

        This dataset includes wetlands and related ecosystems for all North America.

  Geographic extent
    Bounding rectangle
      Extent type
      Extent used for searching
      West longitude-180
      East longitude-50
      North latitude85
      South latitude-14
      Extent contains the resource ⇔Yes
Extent in the item's coordinate system
  westBL ⇔-8854929.337689
  eastBL ⇔8855002.940939
  southBL ⇔-3790768.239624
  northBL ⇔11290433.953979
  exTypeCode ⇔Yes

### Resource Points of Contact ▼►

Point of contact - point of contact
  Individual's nameDominique Croteau
  Organization's nameCommission for Environmental Cooperation (CEC)
  Contact's positionProject Lead, Geospatial and Environmental Information
    Contact information ▼►
      Phone
        Voice+1 514 350 4300
        Fax+1 438 701 1434
      Address
        Typephysical
        Delivery point1001 Robert-Bourassa Boulevard, Suite 1620
        CityMontreal
        Administrative areaQuebec
        Postal codeH3B 4L4
        e-mail address info@cec.org
Point of contact - publisher
  Organization's nameCommission for Environmental Cooperation (CEC)
    Contact information ▼►
      Phone
        Voice+1 514 350 4300
        Fax+1 438 701 1434
      Address
        Typephysical
        Delivery point1001 Robert-Bourassa Boulevard, Suite 1620
        CityMontreal
        Administrative areaQuebec
        Postal codeH3B 4L4
        CountryCA
        e-mail address info@cec.org
      Online resource
        Online location (URL) https://www.cec.org/north-american-environmental-atlas/

### Resource Maintenance ▼►

Resource maintenance
  Update frequencyas needed
  Maintenance contact - publisher
    Organization's nameCommission for Environmental Cooperation (CEC)
      Contact information ▼►
        Phone
          Voice+1 514 350 4300
          Fax+1 438 701 1434
        Address
          Typephysical
          Delivery point1001 Robert-Bourassa Boulevard, Suite 1620
          CityMontreal
          Administrative areaQuebec
          Postal codeH3B 4L4
          CountryCA
          e-mail address info@cec.org
        Online resource
          Online location (URL) https://www.cec.org/north-american-environmental-atlas/

### Resource Constraints ▼►

Constraints
  Limitations of use

        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.

Legal constraints
  Limitations of use

        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.

### Spatial Reference ▼►

ArcGIS coordinate system
  Type ⇔Projected
  Geographic coordinate reference ⇔GCS_WGS_1984
  Projection ⇔WGS_1984_Lambert_Azimuthal_Equal_Area
  Coordinate reference details ⇔
    ProjectedCoordinateSystem
      XOrigin-12749300
      YOrigin-12735000
      XYScale353242893.91343015
      ZOrigin-100000
      ZScale10000
      MOrigin-100000
      MScale10000
      XYTolerance0.001
      ZTolerance0.001
      MTolerance0.001
      HighPrecisiontrue
      WKTPROJCS["WGS_1984_Lambert_Azimuthal_Equal_Area",GEOGCS["GCS_WGS_1984",DATUM["D_WGS_1984",SPHEROID["WGS_1984",6378137.0,298.257223563]],PRIMEM["Greenwich",0.0],UNIT["Degree",0.0174532925199433]],PROJECTION["Lambert_Azimuthal_Equal_Area"],PARAMETER["False_Easting",0.0],PARAMETER["False_Northing",0.0],PARAMETER["Central_Meridian",-100.0],PARAMETER["Latitude_Of_Origin",45.0],UNIT["Meter",1.0]]
Reference system identifier
  Value37008
  CodespaceWKID

### Spatial Data Properties ▼►

Georectified Grid ▼►
  Number of dimensions ⇔2
  Axis dimensions properties - column (x-axis)
    Dimension size ⇔42457
    Resolution ⇔
        417.126323 m (meter)
  Axis dimensions properties - row (y-axis)
    Dimension size ⇔36155
    Resolution ⇔
        417.126323 m (meter)
  Cell geometry ⇔area
  Point in pixel ⇔center
  Transformation parameters are available ⇔Yes
  Check points are available ⇔No
  Corner points
    Point ⇔-8854929.337689 -3790768.239624
    Point ⇔-8854929.337689 11290433.953979
    Point ⇔8855002.940939 11290433.953979
    Point ⇔8855002.940939 -3790768.239624
  Center point ⇔36.801625 3749832.857177
ArcGIS Raster Properties ▼►
  General Information
    Pixel depth ⇔4
    Compression type ⇔LZW
    Number of bands ⇔1
    Raster format ⇔TIFF
    Source type ⇔discrete
    Pixel type ⇔unsigned integer
    No data value ⇔0
    Has colormap ⇔No
    Has pyramids ⇔No

### Spatial Data Content ▼►

Image Description
  Type of information ⇔thematic classification
  Attribute described by cell valuesWetlands
  Band information
    Description ⇔Band_1
    Maximum value ⇔11.000000
    Minimum value ⇔1.000000
    Units
      Symbolm
    Number of bits per value ⇔4
  Triangulation has been performedNo
  Radiometric calibration is availableNo
  Camera calibration is availableNo
  Film distortion information is availableNo
  Lens distortion information is availableNo

### Data Quality ▼►

Scope of quality information ▼►
  Resource leveldataset
Data quality report - Conceptual consistency ▼►
  Data quality measure reference
    Measure description

          The dataset was compiled from various data sources, mostly dating from the 1970s to 1990s. While no explicit data lineage is provided, the dataset is widely used and cited in scientific literature. GLWD-3 is suitable for global-scale modeling and analysis, with a resolution of 30 arc-seconds. The data are considered reliable for identifying general wetland distributions but may not reflect fine-scale or recent wetland changes.

### Lineage ▼►

Lineage statement

      The GLWD-3 dataset was developed by Bernhard Lehner (World Wildlife Fund US) in collaboration with Petra Döll (University of Kassel) as part of the Global Lakes and Wetlands Database project. It integrates various datasets compiled from the 1970s to 1990s to generate a global raster layer at 30 arc-second resolution, representing lakes, reservoirs, rivers, and wetland types. The methodology and validation process are documented in Lehner & Döll (2004), Journal of Hydrology, Vol. 296, pp. 1–22.

Source data ▼►
  Description

        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 at 30-sec resolution.

  Source medium nameonline link
  Source citation ▼►
    TitleGlobal Lakes and Wetlands Database, Level 3
    Publication date2004-07-19 00:00:00
    FGDC geospatial presentation formatraster digital data
    Resource identifier
      ValueWeltalands_DB_2004
    Other citation details

          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. Global Lakes and Wetlands Database available through World Wildlife Fund (WWF).

    Responsible party - originator
      Organization's nameWorld Wildlife Fund US
        Contact information ▼►
          Address
            Typephysical
            Delivery point1250 24th Street NW
            CityWashington
            Administrative areaDistrict of Columbia
            Postal code20037
            CountryUS
            e-mail address bernhard.lehner@wwfus.org
          Online resource
            Online location (URL) http://www.wwfus.org/science/data.cfm
          Contact instructions

                Contact Person: Bernhard Lehner

    Resource location online
      Online location (URL) http://www.wwfus.org/science/data.cfm

### Distribution ▼►

Distributor ▼►
  Contact information - distributor
    Organization's nameCommission for Environmental Cooperation (CEC)
      Contact information ▼►
        Phone
          Voice+1 514 350 4300
          Fax+1 438 701 1434
        Address
          Typephysical
          Delivery point1001 Robert-Bourassa Boulevard, Suite 1620
          CityMontreal
          Administrative areaQuebec
          Postal codeH3B 4L4
          CountryCA
          e-mail address info@cec.org
        Online resource
          Online location (URL) https://www.cec.org/north-american-environmental-atlas/
Distribution format
  NameTIFF
  VersionESRI
Transfer options
  Units of distributionMB
  Transfer size17.2

### Fields ▼►

Details for object na_wetlands.tif.vat ▼►
  Type ⇔Table
  Row count ⇔10
  Definition

        Wetlands ecosystems

  Definition source

        Commission for Environmental Cooperation

  Field OID ▼►
    Alias ⇔OID
    Data type ⇔OID
    Width ⇔4
    Precision ⇔0
    Scale ⇔0
    Field description ⇔

          Internal feature number.

    Description source ⇔

          Esri

    Description of values ⇔

          Sequential unique whole numbers that are automatically generated.

  Field VALUE ▼►
    Alias ⇔VALUE
    Data type ⇔Integer
    Width ⇔10
    Precision ⇔10
    Scale ⇔0
    Field description

          Code to describe the wetland ecosystem.

    Description source

          Commission for Environmental Cooperation

    List of values
      Value1
      Enumerated domain value definition sourceCommission for Environmental Cooperation
      DescriptionLake
      Value2
      Enumerated domain value definition sourceCommission for Environmental Cooperation
      DescriptionReservoir
      Value3
      Enumerated domain value definition sourceCommission for Environmental Cooperation
      DescriptionRiver
      Value4
      Enumerated domain value definition sourceCommission for Environmental Cooperation
      DescriptionFreshwater Marsh, Floodplain
      Value6
      Enumerated domain value definition sourceCommission for Environmental Cooperation
      DescriptionSwamp Forest, Flooded Forest
      Value7
      Enumerated domain value definition sourceCommission for Environmental Cooperation
      DescriptionPan, Brackish/Saline Wetland
      Value8
      Enumerated domain value definition sourceCommission for Environmental Cooperation
      DescriptionBog, Fen, Mire
      Value9
      Enumerated domain value definition sourceCommission for Environmental Cooperation
      Description50-100% Wetland
      Value10
      Enumerated domain value definition sourceCommission for Environmental Cooperation
      Description25-50% Wetland
      Value11
      Enumerated domain value definition sourceCommission for Environmental Cooperation
      DescriptionWetland Complex (0-25% Wetland)
    Range of values
      Minimum value1
      Maximum value11
  Field COUNT ▼►
    Alias ⇔COUNT
    Data type ⇔Integer
    Width ⇔10
    Precision ⇔10
    Scale ⇔0
    Field description

          Number of pixels in each wetland class value.

    Description source

          Commission for Environmental Cooperation

### Metadata Details ▼►

Metadata language ⇔English (UNITED STATES)
Metadata character setutf8 - 8 bit UCS Transfer Format
Metadata identifierNAatlas_1.08_metadata
Scope of the data described by the metadatadataset
Scope name ⇔dataset
Last update2004-07-19
ArcGIS metadata properties
  Metadata formatArcGIS 1.0
  Standard or profile used to edit metadataISO19115_3
  Created in ArcGIS for the item2022-07-14 14:29:38
  Last modified in ArcGIS for the item2025-08-28 15:34:27
  Automatic updates
    Have been performedYes
    Last update2025-07-30 16:30:32

### Metadata Contacts ▼►

Metadata contact - point of contact
  Individual's nameDominique Croteau
  Organization's nameCommission for Environmental Cooperation (CEC)
  Contact's positionProject Lead, Geospatial and Environmental Information
    Contact information ▼►
      Phone
        Voice+1 514 350 4300
        Fax+1 438 701 1434
      Address
        Typephysical
        Delivery point1001 Robert-Bourassa Boulevard, Suite 1620
        CityMontreal
        Administrative areaQuebec
        Postal codeH3B 4L4
        e-mail address info@cec.org
Metadata contact - publisher
  Organization's nameCommission for Environmental Cooperation (CEC)
    Contact information ▼►
      Phone
        Voice+1 514 350 4300
        Fax+1 438 701 1434
      Address
        Typephysical
        Delivery point1001 Robert-Bourassa Boulevard, Suite 1620
        CityMontreal
        Administrative areaQuebec
        Postal codeH3B 4L4
        CountryCA
        e-mail address info@cec.org
      Online resource
        Online location (URL) https://www.cec.org/north-american-environmental-atlas/

### Metadata Maintenance ▼►

Maintenance
  Update frequencyas needed
  Maintenance contact - publisher
    Organization's nameCommission for Environmental Cooperation (CEC)
      Contact information ▼►
        Phone
          Voice+1 514 350 4300
          Fax+1 438 701 1434
        Address
          Typephysical
          Delivery point1001 Robert-Bourassa Boulevard, Suite 1620
          CityMontreal
          Administrative areaQuebec
          Postal codeH3B 4L4
          CountryCA
          e-mail address info@cec.org
        Online resource
          Online location (URL) https://www.cec.org/north-american-environmental-atlas/

### Metadata Constraints ▼►

Constraints
  Limitations of use

        None. Acknowledgement of the Commission for Environmental Cooperation, the World Wildlife Fund US would be appreciated in products derived from these data.

Legal constraints
  Limitations of use

        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.