Identification_Information: Citation: Citation_Information: Originator: Giri, C., E. Ochieng, L.L.Tieszen, Z. Zhu, A. Singh, T. Loveland, J. Masek, and N. Duke Publication_Date: 20051231 Title: Global Mangrove Forests Distribution, 2000 Edition: 1.00 Geospatial_Data_Presentation_Form: raster, map, map service Publication_Information: Publication_Place: Palisades, NY Publisher: NASA Socioeconomic Data and Applications Center (SEDAC) Online_Linkage: https://doi.org/10.7927/H4J67DW8 Larger_Work_Citation: Citation_Information: Originator: Giri, C., E. Ochieng, L. L. Tieszen, Z. Zhu, A. Singh, T. Loveland, J. Masek, and N. Duke Publication_Date: 20100817 Title: Status and Distribution of Mangrove Forests of the World Using Earth Observation Satellite Data Geospatial_Data_Presentation_Form: journal article Series_Information: Series_Name: Global Ecology and Biogeography: A Journal of Macroecology Issue_Identification: 20(1): 154-159 Online_Linkage: https://doi.org/10.1111/j.1466-8238.2010.00584.x Description: Abstract: The Global Mangrove Forests Distribution, 2000 data set is a compilation of the extent of mangroves forests from the Global Land Survey and the Landsat archive with hybrid supervised and unsupervised digital image classification techniques. The data are available at 30-m spatial resolution. The total area of mangroves in the year 2000 was estimated at 137,760 km2 in 118 countries and territories in the tropical and subtropical regions of the world. Purpose: To provide data that can be used in global mangrove forest distribution modeling, land cover change analysis, global carbon accounting studies and to assist with policy-making in regards to human-environment interactions and future adaptive strategies. Time_Period_of_Content: Time_Period_Information: Range_of_Dates/Times: Beginning_Date: 20000101 Ending_Date: 20001231 Currentness_Reference: publication date Status: Progress: Complete Maintenance_and_Update_Frequency: As needed Spatial_Domain: Bounding_Coordinates: West_Bounding_Coordinate: -180.000000 East_Bounding_Coordinate: 180.000000 North_Bounding_Coordinate: 90.000000 South_Bounding_Coordinate: -90.000000 Keywords: Theme: Theme_Keyword_Thesaurus: SEDAC Theme Theme_Keyword: Climate Theme_Keyword: Conservation Theme_Keyword: Marine and Coastal Theme_Keyword: Remote Sensing Theme_Keyword: Sustainability Theme: Theme_Keyword_Thesaurus: Data Granularity Theme_Keyword: Continent Theme_Keyword: Country Theme: Theme_Keyword_Thesaurus: ISO Topic Theme_Keyword: Imagery/Base Maps/Earth Cover Theme: Theme_Keyword_Thesaurus: GCMD Science Keywords, Version 8.6 Theme_Keyword: EARTH SCIENCE > OCEANS > COASTAL PROCESSES > MANGROVES Place: Place_Keyword_Thesaurus: CIESIN Location Terms, Version 3.1 Place_Keyword: Global Access_Constraints: None Use_Constraints: This is a work of the U.S. Government and is not subject to copyright protection in the United States. The data may be used by anyone, anywhere, anytime without permission, license or royalty payment. Attribution using the recommended citation is requested. Point_of_Contact: Contact_Information: Contact_Organization_Primary: Contact_Organization: NASA Socioeconomic Data and Applications Center (SEDAC) Contact_Address: Address_Type: mailing and physical address Address: CIESIN, Columbia University, 61 Route 9W, P.O. Box 1000 City: Palisades State_or_Province: New York Postal_Code: 10964 Country: United States Contact_Voice_Telephone: +1 845-365-8920 Contact_Facsimile_Telephone: +1 845-365-8922 Contact_Electronic_Mail_Address: ciesin.info@ciesin.columbia.edu Browse_Graphic: Browse_Graphic_File_Name: https://sedac.ciesin.columbia.edu/downloads/maps/lulc/lulc-global-mangrove-forests-distribution-2000/lulc-mangroves-2000-southeast-asia-thumbnail.jpg Browse_Graphic_File_Description: Mangrove Forests Distribution (2000): Southeast Asia Browse_Graphic_File_Type: JPEG Data_Quality_Information: Lineage: Process_Step: Process_Description: The mangrove forests distribution data set was created using a multi-stage empirical process based on the following data sets: 1. Global Land Survey data for 2000, a global dataset of Landsat 30-m resolution satellite imagery prepared in partnership between the U.S. Geological Survey (USGS) and the National Aeronautics and Space Administration (NASA) in support of the U.S. Climate Change Science Program (CCSP), Group on Earth Observations (GEO) and the NASA Land-Cover and Land-Use Change (LCLUC) Program gathered from 1997 to 2000 2. Landsat Thematic Mapper (TM) imagery from the USGS archive. 3. Statistical data from the global mangrove database (Food and Agriculture Organization of the United Nations [FAO], 2007) and national and local mangrove databases. Process Steps: 1. Satellite images were subset to include areas where mangrove forest is likely to occur and exclude large areas where mangrove forests are not located. 2. Analysis of about a thousand Landsat scenes using hybrid supervised and unsupervised digital image classification techniques including geometric correction to improve geo-location and image normalization for variation in solar angle and earth-sun distance. 3. Water bodies were mapped with a supervised classification. 4. Use ISODATA clustering algorithm within ERDAS IMAGINE to generate 50-150 spectral clusters at the 99% convergence level. 5. Through iterative labelling, mangrove classes were identified and labeled with reference to field data and high-resolution QuickBird and IKONOS imagery, and then merged into a single mangrove category. 6. Four land-cover classes were generated: mangrove, non-mangrove, barren lands and water bodies. 7. Post-classification editing such as `recoding? was performed to remove obvious errors. 8. Qualitative validation was performed with the help of local experts and high-resolution satellite data such as QuickBird and IKONOS by dividing the entire area into 500 by 500 grids and checking each visually in order to identify and correct gross errors found in the classified maps. Spatial_Data_Organization_Information: Direct_Spatial_Reference_Method: Raster Raster_Object_Information: Raster_Object_Type: Grid Cell Row_Count: 720 Column_Count: 360 Vertical_Count: 1 Spatial_Reference_Information: Horizontal_Coordinate_System_Definition: Geographic: Latitude_Resolution: 30.000000 Longitude_Resolution: 30.000000 Geographic_Coordinate_Units: Decimal degrees Geodetic_Model: Horizontal_Datum_Name: WGS84 Ellipsoid_Name: WGS84 Semi-major_Axis: 6378137.000000 Denominator_of_Flattening_Ratio: 298.257224 Distribution_Information: Distributor: Contact_Information: Contact_Organization_Primary: Contact_Organization: NASA Socioeconomic Data and Applications Center (SEDAC) Contact_Address: Address_Type: mailing and physical address Address: CIESIN, Columbia University, 61 Route 9W, P.O. Box 1000 City: Palisades State_or_Province: New York Postal_Code: 10964 Country: United States Contact_Voice_Telephone: +1 845-365-8920 Contact_Facsimile_Telephone: +1 845-365-8922 Contact_Electronic_Mail_Address: ciesin.info@ciesin.columbia.edu Resource_Description: CIESIN_SEDAC_LULC_MANGROVES_2000 Distribution_Liability: CIESIN follows procedures designed to ensure that data disseminated by CIESIN are of reasonable quality. If, despite these procedures, users encounter apparent errors or misstatements in the data, they should contact SEDAC User Services at +1 845-365-8920 or via email at ciesin.info@ciesin.columbia.edu. Neither CIESIN nor NASA verifies or guarantees the accuracy, reliability, or completeness of any data provided. CIESIN provides this data without warranty of any kind whatsoever, either expressed or implied. CIESIN shall not be liable for incidental, consequential, or special damages arising out of the use of any data provided by CIESIN. Standard_Order_Process: Fees: 0 Ordering_Instructions: The data in Georeferenced Tagged Image File Format (.tif); the maps in Portable Document Format (.pdf), and Portable Network Graphics (.png) formats; and the web map services are available from the NASA Socioeconomic Data and Applications Center (SEDAC). Standard_Order_Process: Digital_Form: Digital_Transfer_Information: Format_Name: GeoTIFF File_Decompression_Technique: Unzip Digital_Transfer_Option: Online_Option: Computer_Contact_Information: Network_Address: Network_Resource_Name: https://sedac.ciesin.columbia.edu/data/set/lulc-global-mangrove-forests-distribution-2000/data-download Access_Instructions: Data accessible via the data set landing page. Digital_Form: Digital_Transfer_Information: Format_Name: Grid File_Decompression_Technique: Unzip Digital_Transfer_Option: Online_Option: Computer_Contact_Information: Network_Address: Network_Resource_Name: https://sedac.ciesin.columbia.edu/data/set/lulc-global-mangrove-forests-distribution-2000/data-download Access_Instructions: Data accessible via the data set landing page. Digital_Form: Digital_Transfer_Information: Format_Name: PDF Digital_Transfer_Option: Online_Option: Computer_Contact_Information: Network_Address: Network_Resource_Name: https://sedac.ciesin.columbia.edu/data/set/lulc-global-mangrove-forests-distribution-2000/maps Access_Instructions: Maps accessible via the data set landing page. Digital_Form: Digital_Transfer_Information: Format_Name: PNG Digital_Transfer_Option: Online_Option: Computer_Contact_Information: Network_Address: Network_Resource_Name: https://sedac.ciesin.columbia.edu/data/set/lulc-global-mangrove-forests-distribution-2000/maps Access_Instructions: Maps accessible via the data set landing page. Digital_Form: Digital_Transfer_Information: Format_Name: WMS Digital_Transfer_Option: Online_Option: Computer_Contact_Information: Network_Address: Network_Resource_Name: https://sedac.ciesin.columbia.edu/data/set/lulc-global-mangrove-forests-distribution-2000/maps/services Access_Instructions: Web Map Services accessible via the data set landing page. Available_Time_Period: Time_Period_Information: Range_of_Dates/Times: Beginning_Date: 20141003 Ending_Date: Present Metadata_Reference_Information: Metadata_Date: 20110608 Metadata_Review_Date: 20220831 Metadata_Contact: Contact_Information: Contact_Organization_Primary: Contact_Organization: Center for International Earth Science Information Network (CIESIN) Metadata Administration Contact_Address: Address_Type: mailing and physical address Address: CIESIN, Columbia University, 61 Route 9W, P.O. Box 1000 City: Palisades State_or_Province: New York Postal_Code: 10964 Country: United States Contact_Voice_Telephone: +1 845-365-8988 Contact_Facsimile_Telephone: +1 845-365-8922 Contact_Electronic_Mail_Address: metadata@ciesin.columbia.edu Metadata_Standard_Name: FGDC Content Standards for Digital Geospatial Metadata Metadata_Standard_Version: FGDC-STD-001-1998