gov.noaa.nmfs.inport:78652 eng UTF8 dataset Office for Coastal Management resourceProvider Cothran, Jeremy jeremy.cothran@gmail.com pointOfContact 2026-03-04T19:17:17 ISO 19115-2 Geographic Information - Metadata Part 2 Extensions for imagery and gridded data ISO 19115-2:2009(E) A Long-Term Perspective on Tidal Wetland Restoration: Vegetation Development, Elevation Capital, and Carbon Sequestration in the Oldest Projects Along the U.S. West Coast - NERRS/NSC(NERRS Science Collaborative) 2024-09 creation revision publication NOAA/NMFS/EDM 78652 https://www.fisheries.noaa.gov/inport/item/78652 WWW:LINK-1.0-http--link Full Metadata Record View the complete metadata record on InPort for more information about this dataset. information https://nerrssciencecollaborative.org/project/Janousek22 WWW:LINK-1.0-http--link Janousek22 Online Resource download This large-scale, multi-site assessment of some of the oldest tidal marsh restoration projects in California, Oregon, and Washington provides insight into the development of marsh plant communities and blue carbon functions and demonstrates the value of long-term monitoring. The Project Tidal wetland restoration is an important tool to increase wetland area and enhance ecosystem services in estuaries. It often involves re-introduction of tidal flow to former tidal wetlands. Although millions of dollars have been spent during recent decades on tidal restoration along the West Coast of the United States, there has been less investment in tracking the success of restoration projects through time. While tidal wetlands may be monitored for either structure or function soon after restoration, many projects are no longer tracked after several years. Restoration practitioners, managers, scientists, and coastal policy makers need information on long-term project outcomes to best plan and design future projects and quantify restoration benefits. Working with four West Coast reserves, regional blue carbon working groups, local, state and tribal organizations, and other partners, this project examined some of the oldest tidal marsh restoration projects in California, Oregon, and Washington to learn more about restoration outcomes. The team compared restored marshes (aged 22-62 years) with nearby least-disturbed reference sites. The team collected data on wetland structure, including attributes which form the basis for many of the valued functions and services of tidal wetlands. This large-scale, multi-site assessment allowed for a powerful regional analysis of restoration outcomes along the West Coast. For elevation capital, the team found that restored sites were often lower in the tidal frame than reference marshes. However, restoration projects involving sediment addition tended to be closer to the elevations of reference marshes. Restored marsh vegetation communities resembled reference sites in part. Both types of marshes tended to have high plant cover dominated by native species, but differences in species composition often remained and many restored sites tended to have lower plant diversity. Finally, results showed that soil carbon accumulation rates in restored sites were as high on average as reference marshes, suggesting that restoring sites have recovered this important ecological function. The project findings are helping fill important regional data gaps by providing a long-term perspective on “lessons-learned” from past restoration projects. Project outputs include peer-reviewed articles, new regional datasets, and a restoration brief designed to help restoration practitioners and coastal wetland managers. Management recommendations offered in project products may confirm existing restoration practices, while others may provide useful new insights based on newly collected and analyzed data. Although this study included only tidal marsh restoration sites from the US West Coast, many of these recommendations may be applicable to restoration in other regions, or of other tidal wetland types such as tidal swamps. The Impact Strengthened West Coast partnerships in wetland restoration and monitoring. Deepened scientific understanding of long-term tidal marsh development, especially related to vegetation and blue carbon. Demonstrated the value of long-term monitoring of restoration projects. Developed management recommendations that can provide insight and context for upcoming restoration projects at partnering NERRs. completed Office for Coastal Management 2234 South Hobson Avenue Charleston SC 29405-2413 https://www.coast.noaa.gov/ WWW:LINK-1.0-http--link Office for Coastal Management Website Website listed for Office for Coastal Management information custodian asNeeded EARTH SCIENCE > BIOSPHERE > ECOLOGICAL DYNAMICS > ECOSYSTEM FUNCTIONS > CARBON SEQUESTRATION EARTH SCIENCE > BIOSPHERE > ECOSYSTEMS > MARINE ECOSYSTEMS > COASTAL > SALT MARSH theme Global Change Master Directory (GCMD) Science Keywords 17.0 ; remote sensing; NDVI UVVR accretion blue carbon bulk density carbon density carbon sequestration elevation elevation capital macroalgae plant cover restoration salt marsh soil organic content soil salinity species richness tidal datums tidal marsh tidal wetlands vegetation water level water temperature theme Elkhorn Slough, CA NERR San Francisco Bay, CA NERR South Slough, OR NERR Tijuana River, CA NERR place DOC/NOAA/NOS/OCM > Office of Coastal Management, National Ocean Service, NOAA, U.S. Department of Commerce dataCentre Global Change Master Directory (GCMD) Data Center Keywords 2017-04-24 publication 8.5 Earth Science Data and Information System, Earth Science Projects Division, Goddard Space Flight Center (GSFC), National Aeronautics and Space Administration (NASA) https://forum.earthdata.nasa.gov/app.php/tag/GCMD%2BKeywords GCMD Keyword Forum Page Global Change Master Directory (GCMD). 2025. GCMD Keywords, Version 22. Greenbelt, MD: Earth Science Data and Information System, Earth Science Projects Division, Goddard Space Flight Center (GSFC), National Aeronautics and Space Administration (NASA). URL (GCMD Keyword Forum Page): https://forum.earthdata.nasa.gov/app.php/tag/GCMD+Keywords information custodian NERRS project InPort otherRestrictions Cite As: Office for Coastal Management, [Date of Access]: A Long-Term Perspective on Tidal Wetland Restoration: Vegetation Development, Elevation Capital, and Carbon Sequestration in the Oldest Projects Along the U.S. West Coast - NERRS/NSC(NERRS Science Collaborative) [Data Date Range], https://www.fisheries.noaa.gov/inport/item/78652. NOAA provides no warranty, nor accepts any liability occurring from any incomplete, incorrect, or misleading data, or from any incorrect, incomplete, or misleading use of the data. It is the responsibility of the user to determine whether or not the data is suitable for the intended purpose. otherRestrictions Access Constraints: None otherRestrictions Use Constraints: Cite this dataset when used as a source: NOAA retains the right to analyze, synthesize and publish summaries of the NERRS/NSC data. The NERRS/NSC retains the right to be fully credited for having collected and process the data. Following academic courtesy standards, the NERR site where the data were collected should be contacted and fully acknowledged in any subsequent publications in which any part of the data are used. The data enclosed within this package/transmission are only as accurate as the quality assurance and quality control procedures that are described in the associated metadata reporting statement allow. The user bears all responsibility for its subsequent use/misuse in any further analyses or comparisons. The Federal government does not assume liability to the Recipient or third persons, nor will the Federal government reimburse or indemnify the Recipient for its liability due to any losses resulting in any way from the use of this data. Requested citation format: NOAA National Estuarine Research Reserve System (NERRS) Science Collaborative(NSC). otherRestrictions Distribution Liability: The distributor does not assume liability. unclassified NOAA Data Management Plan (DMP) NOAA/NMFS/EDM 78652 https://www.fisheries.noaa.gov/inportserve/waf/noaa/nos/ocm/dmp/pdf/78652.pdf WWW:LINK-1.0-http--link NOAA Data Management Plan (DMP) NOAA Data Management Plan for this record on InPort. information crossReference eng; US oceans -121.772 -121.72 36.799 36.843 Elkhorn Slough, CA NERR -122.505 -122.45 37.98 38.014 San Franciso Bay, CA NERR -124.344 -124.265 43.263 43.315 South Slough, OR NERR -117.14 -117.09 32.532 32.577 Tijuana River, CA NERR | Currentness: Ground Condition 2022-10-01 2024-09-01 Project Lead: Christopher Janousek, Oregon State University, janousec@oregonstate.edu Technical Lead: John Rybczyk, Western Washington University, rybczyj2@wwu.edu Collaborative Lead: Jenni Schmitt, South Slough NERR, jenni.schmitt@dsl.oregon.gov Partners: Western Washington University; Institute for Applied Ecology; Pacific Northwest Blue Carbon Working Group false eng false Other N/A 2025-11-21 publication Multiple formats Office for Coastal Management 2234 South Hobson Avenue Charleston SC 29405-2413 https://www.coast.noaa.gov/ WWW:LINK-1.0-http--link Office for Coastal Management Website Website listed for Office for Coastal Management information distributor https://nerrssciencecollaborative.org/project/Janousek22 WWW:LINK-1.0-http--link Janousek22 download dataset Representativeness N/A This information is detailed within the project links. N/A Office for Coastal Management processor N/A