All data in this paper was acquired via publicly available sites and processed as described in the manuscript. The following data links are provided: Spatial Flood Extent data available from the USGS (Morlock et al. 2008). https://pubs.usgs.gov/of/2008/1322/ National Wetlands Inventory data available from the US FWS https://www.fws.gov/wetlands/data/Mapper.html National Hydrography Dataset available from the USGS (National Hydrography product page) https://www.usgs.gov/core-science-systems/ngp/national-hydrography/access-national-hydrography-products Federal Emergency Management Agency flood insurance data https://www.fema.gov/data-feeds Soil-Based Floodplain Map (Sangwan and Merwade 2015) https://purr.purdue.edu/publications/2430/1. This dataset is associated with the following publication: Lane, C., A. Hall, E. D'Amico, N. Sangwan, and V. Merwade. Characterizing the Extent of Spatially Integrated Floodplain and Wetland Systems in the White River, Indiana, USA. JOURNAL OF THE AMERICAN WATER WORKS ASSOCIATION. American Water Works Association, Denver, CO, USA, 53(4): 774-790, (2017).

The dataset includes information to make Figure 4 within the manuscript. This dataset is associated with the following publication: Golden, H., A. Rajib, C. Lane, J. Christensen, Q. Wu, and S. Mengistu. Non-floodplain Wetlands Affect Watershed Nutrient Dynamics: A Critical Review. ENVIRONMENTAL SCIENCE & TECHNOLOGY. American Chemical Society, Washington, DC, USA, 53(13): 7203-7214, (2019).

The dataset includes information to make Figure 4 within the manuscript. This dataset is associated with the following publication: Golden, H., A. Rajib, C. Lane, J. Christensen, Q. Wu, and S. Mengistu. Non-floodplain Wetlands Affect Watershed Nutrient Dynamics: A Critical Review. ENVIRONMENTAL SCIENCE & TECHNOLOGY. American Chemical Society, Washington, DC, USA, 53(13): 7203-7214, (2019).

The dataset includes information to make Figures 1 through 6 of the manuscript. This dataset is associated with the following publication: Rajib, A., H. Golden, C. Lane, and Q. Wu. Surface Depression and Wetland Water Storage Improves Major River Basin Hydrologic Predictions. WATER RESOURCES RESEARCH. American Geophysical Union, Washington, DC, USA, 56(7): e2019WR026561, (2020).

The dataset includes information to make Figures 1 through 6 of the manuscript. This dataset is associated with the following publication: Rajib, A., H. Golden, C. Lane, and Q. Wu. Surface Depression and Wetland Water Storage Improves Major River Basin Hydrologic Predictions. WATER RESOURCES RESEARCH. American Geophysical Union, Washington, DC, USA, 56(7): e2019WR026561, (2020).

These data are processed Landsat images. This dataset is not publicly accessible because: The dataset is too large for Sciencehub upload. It can be accessed through the following means: Please contact Laurie Alexander, alexander.laurie@epa.gov. Format: These data are in OLI Full Resolution Browse (FRB) format. This dataset is associated with the following publication: Vanderhoof , M., and L. Alexander. The Role of Lake Expansion in Altering the Wetland Landscape of the Prairie Pothole Region, United States. WETLANDS. The Society of Wetland Scientists, McLean, VA, USA, 36(Suppl 2): S309-S321, (2016).

These data are processed Landsat images. This dataset is not publicly accessible because: The dataset is too large for Sciencehub upload. It can be accessed through the following means: Please contact Laurie Alexander, alexander.laurie@epa.gov. Format: These data are in OLI Full Resolution Browse (FRB) format. This dataset is associated with the following publication: Vanderhoof , M., and L. Alexander. The Role of Lake Expansion in Altering the Wetland Landscape of the Prairie Pothole Region, United States. WETLANDS. The Society of Wetland Scientists, McLean, VA, USA, 36(Suppl 2): S309-S321, (2016).

These datasets represent management units within in-force floodplain management plans across the northern valleys of the Murray-Darling Basin in NSW. The data includes the floodplain boundaries, management zones and ecological assets derived from plans gazetted under the NSW Water Management Act 2000. The areas covered by the floodplain boundaries are declared to be floodplains under the Water Management (General) Regulation 2018. The management zones are used to define areas in which specific management rules apply. As such, this data may be used to understand which floodplain management plan rules apply to a specific location. Ecological assets, including flood-dependent ecological assets, are identified in each plan area and are required to be considered in the rules in each floodplain management plan. The plans are in place for 10 years but may be amended within this time. Any updates to the management zones as a result of a plan being amended during, or replaced following its 10 year term will be made available at that time. PLEASE NOTE: In the case of any discrepancy between this digital dataset and the published Floodplain Management Plan (accessible on the department’s website) the instrument as made by the Minister remains the authoritative source and should be used to both interpret the intent of the Plan and in subsequent decision making. Best endeavours have been made in collating relevant Floodplain Management Plan boundary and attribution contained in this dataset. However, no warranty is provided as to the accuracy or currency of this representation. The department does not warrant and is not liable for the use of this material as per the licenced sharing conditions CC-BY 4.0. The datasets were originally developed by the NSW Office of Environment and Heritage as part of the NSW Healthy Floodplains Project. Note: If you would like to ask a question, make any suggestions, or tell us how you are using this dataset, please visit the NSW Water Hub which has an online forum you can join. Spatial web services—better data sharing for better outcomes

Data used to estimate models relating climate and land cover to wetland densities. Data derived from historical climate data, estimates of hydrological processed based on the Variable Infiltration Capacity model, National Wetlands Inventory, and National Land Cover Database (2006 version). Wetland densities based on observations from the Waterfowl Breeding Population and Habitat Survey.

Data used to estimate models relating climate and land cover to wetland densities. Data derived from historical climate data, estimates of hydrological processed based on the Variable Infiltration Capacity model, National Wetlands Inventory, and National Land Cover Database (2006 version). Wetland densities based on observations from the Waterfowl Breeding Population and Habitat Survey.