Metadata Column Proj_ID Exp_ID Proj_Study Exp_Study Habitat Country Proj_lat Proj_lon Exp_lat Exp_lon Proj_width Exp_width Exp_depth Exp_Hs Proj_Rpercent Proj_cost_per_m Proj_Cost_Unit Description The project ID (from Table SI 3) The field experiment ID (from Table SI 2) The first author of the project report The first author of the field experiment report Habitat Type Country of project and field experiment Latitude of project Longitude of project Latitude of field experiment Longitude of field experiment Habitat width in project Habitat width in field experiment Average water depth at field experiment site Control wave height at field experiment site "% wave reduction at project site, estimated from field measurements (see Materials and Methods)" "Cost per metre coastline length of project, derived from reported cost and project size (see SI Methods)" Describes the unit by which project costs are reported (Total - total cost of project) Unit None None None None None None Decimal Degree Decimal Degree Decimal Degree Decimal Degree Metres Metres Metres Metres Percentage US $ US $ Data Proj_ID Exp_ID Proj_Study Exp_Study Habitat Country Proj_lat Proj_lon Exp_lat Exp_lon Proj_width Exp_width Exp_depth Exp_Hs Proj_Rpercent Proj_cost_per_m Proj_Cost_Unit 23 48 IFRC Mazda Mangrove Vietnam 20.50888889 106.5827778 20.65611111 106.6858333 644 100 1.2 0.103283 81.02825968 65.10661036 Total 23 41 IFRC Quartel Mangrove Vietnam 20.50888889 106.5827778 20.69 106.7919444 644 31.8 1.65 0.187038 74.93724951 65.10661036 Total 24 48 IFRC Mazda Mangrove Vietnam 20.24972222 106.5708333 20.65611111 106.6858333 1500 100 1.2 0.103283 100 150.4726533 Total 25 48 IFRC Mazda Mangrove Vietnam 20.68805556 106.7275 20.65611111 106.6858333 1000 100 1.2 0.103283 100 101.0972655 Total 25 41 IFRC Quartel Mangrove Vietnam 20.68805556 106.7275 20.69 106.7919444 1000 31.8 1.65 0.187038 100 101.0972655 Total 26 48 IFRC Mazda Mangrove Vietnam 20.32916667 106.5794444 20.65611111 106.6858333 1200 100 1.2 0.103283 100 82.73271733 Total 26 41 IFRC Quartel Mangrove Vietnam 20.32916667 106.5794444 20.69 106.7919444 1200 31.8 1.65 0.187038 100 82.73271733 Total 36 50 ABPMER Cooper Salt Marsh UK 52.962422 0.089861 53.01611111 0.208888889 377 425 3.65 0.116942 76.32489508 2495.835792 Total 38 51 EFTEC Moller Salt Marsh UK 51.616747 0.824875 51.68222222 0.9425 355 163 0.68 0.168726 100 2026.230769 Total 38 52 EFTEC Moller Salt Marsh UK 51.616747 0.824875 51.68222222 0.9425 355 10 0.65 0.261214 100 2026.230769 Total 44 56 ESA_PWA BCDC Salt Marsh USA 37.72027778 -122.3197222 37.72027778 -122.3197222 60 152 0.82 0.303 35.56539864 2008.125 Total 50 51 OMReG Moller Salt Marsh UK 51.7848 0.845569 51.68222222 0.9425 2800 163 0.68 0.168726 100 1598.639 Total 50 52 OMReG Moller Salt Marsh UK 51.7848 0.845569 51.68222222 0.9425 2800 10 0.65 0.261214 100 1598.639 Total