20260331113107001.0ISO19139002https://www.arcgis.com/sharing/rest/content/items/9ab61cff803a497986bf2716898c6902/info/thumbnail/thumbnail1776111835871.png1500000005000TRUE<div style='text-align:Left;'><div><div>The current version supersedes the <a target='_blank' href='https://data.grid3.org/datasets/GRID3::grid3-nga-operational-wards-v1-0/about' rel='nofollow ugc noopener noreferrer'>GRID3 NGA - Operational Wards v1.0</a> dataset for these states: Adamawa, Bauchi, Bayelsa, Borno, Delta, Gombe, Jigawa, Kano, Katsina, Kwara, Ogun, Osun, Oyo, Yobe. The following changes were made:<ul><li>Updated wards’ geometry</li><li>Harmonized wards’ names</li></ul>For more information on the methodology and data sources used during the production of these data, click <a target='_blank' href='https://drive.google.com/file/d/1-obm9JEAfAsVxmaNuRzOoT3047QFI5wP/view?usp=drive_link' rel='nofollow ugc noopener noreferrer'>here</a>. Dataset citationCenter for Integrated Earth System Information (CIESIN), Columbia University 2026. GRID3 NGA - Operational Wards v2.0. New York: GRID3. https://doi.org/10.7916/gpv6-dq34. Accessed [DAY MONTH YEAR].Contacts and data queriesThe authors of this dataset appreciate feedback regarding the data, including suggestions, discovery of errors, difficulties in using the data, and format preferences. For dataset-related questions, please send an email to: info@ciesin.columbia.edu</div></div></div>GRID3 NGA - Operational Wards v2.02026-04-13T00:00:002026-03-31T00:00:00v2.0Dataset citation Center for Integrated Earth System Information (CIESIN), Columbia University 2026. GRID3 NGA - Operational Wards v2.0. New York: GRID3. https://doi.org/10.7916/gpv6-dq34. Accessed [DAY MONTH YEAR].externalfc35357071b3fbb77098f751c60aeff50bde2225694aa386633d321aad49d310Center for Integrated Earth System Information (CIESIN)info@ciesin.columbia.eduTrueCenter for Integrated Earth System Information (CIESIN)2.66427314.67796813.7214384.2700981externalfc35357071b3fbb77098f751c60aeff50bde2225694aa386633d321aad49d310Center for Integrated Earth System Information (CIESIN)info@ciesin.columbia.eduTrueCenter for Integrated Earth System Information (CIESIN)NGANigeriaWardsv2WardsOperational BoundaryThe GRID3 NGA - Operational Wards v2.0 dataset contains operational ward boundaries for the following states: Adamawa, Bauchi, Bayelsa, Borno, Delta, Gombe, Jigawa, Kano, Katsina, Kwara, Niger, Ogun, Osun, Oyo, Yobe. This dataset is considered operational and has not been fully validated by government officials.CIESIN would like to thank the following institutions that provided input and/or assistance during the development of this data product: Department of Health, Planning, Research and Statistics. Monitoring and Evaluation Division (MHSW). eHealth Africa. Fact Foundation. Federal Ministry of Finance, Budget, and National Planning (MFBNP). Federal Ministry of Health and Social Welfare (MHSW). Malaria Consortium (MC). National Emergency Routine Immunization Coordination Centre (NERICC). National Malaria Elimination Programme (NMEP). National Primary Health Care and Development Agency (NPHCDA); Primary Health Care and Development State Boards and health authorities at the Local Government Area (LGA), Ward, and Health Facility levels. Proxy Logics. Society for Family Health (SFH). World Health Organization (WHO). Funding for the development and dissemination of this dataset was provided by GRID3 under the Gates Foundation’s project INV-044979.<DIV STYLE="text-align:Left;"><DIV><DIV>Terms of useUsers are free to download, store, access, use, copy, adapt, transform, alter, arrange, build upon, distribute and transmit this work and any derivative works. Attribution of the source must be provided, and further distribution of this work or derived work must maintain the same terms of data use and license as set forth in this Terms of Use.Copyright 2026. The Trustees of Columbia University in the City of New York.Data licenseThe data and accompanying document are licensed under a Creative Commons Attribution-Share Alike 4.0 International, CC BY-SA 4.0 (https://creativecommons.org/licenses/by-sa/4.0) and specified in legal code (https://creativecommons.org/licenses/by-sa/4.0/legalcode).Known Data Limitations and Disclaimer The spatial accuracy and overall quality of this dataset depend on both the quality of the input data and the correctness of the edits made during processing. Temporal mismatches exist among the input datasets and reference sources, including satellite imagery, settlement polygons, and other health facility datasets used for comparison. In addition, spelling errors and naming inconsistencies may occur because place names can vary across data sources and local usage. This dataset has not been fully validated by government officials or in-country stakeholders.These data are part of ongoing work and should not be assumed to be fully accurate or complete. If users identify apparent errors or inconsistencies in the dataset, they should contact CIESIN at info@ciesin.columbia.edu.The boundary edits included in this release are operational rather than authoritative. As ward boundary editing continues across Nigeria, corresponding changes to Local Government Area (LGA) and state boundaries may also be required to reflect the cumulative effects of these updates.In this release, ward boundary adjustments were applied only to hamlets intersected by ward boundaries. Ward boundaries were not modified in cases where larger settlement extents, including Built-up Areas (BUAs) and Small Settlement Areas (SSAs), crossed ward boundaries. These cases are planned for a future release. CIESIN, Columbia University, and its co-authors follow procedures designed to ensure that data disseminated by the project are of reasonable quality. If, despite these procedures, users encounter apparent errors or misstatements in the data, they should contact CIESIN, info@ciesin.columbia.edu. CIESIN, Columbia University, its co-authors, and their sponsors do not guarantee the accuracy, reliability, or completeness of any data provided. We provide these data without warranty of any kind whatsoever, either expressed or implied, and shall not be liable for incidental, consequential, or special damages arising out of the use of any data provided.Portions of this text were revised for clarity using a generative artificial intelligence tool. The final version was subsequently reviewed and approved by project staff.</DIV></DIV></DIV>See Data Release Notes (PDF) for more information.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20260413externalfc35357071b3fbb77098f751c60aeff50bde2225694aa386633d321aad49d310Center for Integrated Earth System Information (CIESIN)info@ciesin.columbia.eduTrueCenter for Integrated Earth System Information (CIESIN)externalfc35357071b3fbb77098f751c60aeff50bde2225694aa386633d321aad49d310Center for Integrated Earth System Information (CIESIN)info@ciesin.columbia.eduTrueCenter for Integrated Earth System Information (CIESIN)<DIV STYLE="text-align:Left;"><DIV><DIV>Terms of useUsers are free to download, store, access, use, copy, adapt, transform, alter, arrange, build upon, distribute and transmit this work and any derivative works. Attribution of the source must be provided, and further distribution of this work or derived work must maintain the same terms of data use and license as set forth in this Terms of Use.Copyright 2026. The Trustees of Columbia University in the City of New York.Data licenseThe data and accompanying document are licensed under a Creative Commons Attribution-Share Alike 4.0 International, CC BY-SA 4.0 (https://creativecommons.org/licenses/by-sa/4.0) and specified in legal code (https://creativecommons.org/licenses/by-sa/4.0/legalcode).Known Data Limitations and Disclaimer The spatial accuracy and overall quality of this dataset depend on both the quality of the input data and the correctness of the edits made during processing. Temporal mismatches exist among the input datasets and reference sources, including satellite imagery, settlement polygons, and other health facility datasets used for comparison. In addition, spelling errors and naming inconsistencies may occur because place names can vary across data sources and local usage. This dataset has not been fully validated by government officials or in-country stakeholders.These data are part of ongoing work and should not be assumed to be fully accurate or complete. If users identify apparent errors or inconsistencies in the dataset, they should contact CIESIN at info@ciesin.columbia.edu.The boundary edits included in this release are operational rather than authoritative. As ward boundary editing continues across Nigeria, corresponding changes to Local Government Area (LGA) and state boundaries may also be required to reflect the cumulative effects of these updates.In this release, ward boundary adjustments were applied only to hamlets intersected by ward boundaries. Ward boundaries were not modified in cases where larger settlement extents, including Built-up Areas (BUAs) and Small Settlement Areas (SSAs), crossed ward boundaries. These cases are planned for a future release. </DIV></DIV></DIV>