A sediment core extracted from a salt marsh along the Herring River at the National Park Service’s Cape Cod National Seashore in Massachusetts. USGS scientists and partners are applying the mineral olivine to the marsh to study its role in capturing carbon dioxide in tidal wetlands. Credit: Kevin Kroeger, USGS.
Kevin D Kroeger, PhD (Former Employee)
Science and Products
Quantifying Restoration Impacts on Wetland Ecosystem Health and Carbon Export
Sea level Rise and Carbon Cycle Processes in Managed Coastal Wetlands
Wetland Carbon Working Group: Improving Methodologies and Estimates of Carbon and Greenhouse Gas Flux in Wetlands
Submarine Groundwater Discharge
Global Science and Data Network for Coastal Blue Carbon (SBC)
NASA-USGS National Blue Carbon Monitoring System
Geochemical Data Supporting Analysis of Fate and Transport of Nitrogen in the Nearshore Groundwater and Subterranean Estuary near East Falmouth, Massachusetts, 2015-2016 Geochemical Data Supporting Analysis of Fate and Transport of Nitrogen in the Nearshore Groundwater and Subterranean Estuary near East Falmouth, Massachusetts, 2015-2016
Inventory of Managed Coastal Wetlands in Delaware Bay and Delaware's Inland Bays Inventory of Managed Coastal Wetlands in Delaware Bay and Delaware's Inland Bays
Restoration and Conservation Opportunity Maps for the conterminous U.S. (CONUS) Restoration and Conservation Opportunity Maps for the conterminous U.S. (CONUS)
Nearshore groundwater seepage and geochemical data measured in 2015 at Guinea Creek, Rehoboth Bay, Delaware Nearshore groundwater seepage and geochemical data measured in 2015 at Guinea Creek, Rehoboth Bay, Delaware
Carbon dioxide and methane fluxes with supporting environmental data from coastal wetlands across Cape Cod, Massachusetts (ver 2.0, June 2022) Carbon dioxide and methane fluxes with supporting environmental data from coastal wetlands across Cape Cod, Massachusetts (ver 2.0, June 2022)
Continuous Water Level, Salinity, and Temperature Data from Coastal Wetland Monitoring Wells, Cape Cod, Massachusetts (ver. 3.0, September 2025) Continuous Water Level, Salinity, and Temperature Data from Coastal Wetland Monitoring Wells, Cape Cod, Massachusetts (ver. 3.0, September 2025)
A sediment core extracted from a salt marsh along the Herring River at the National Park Service’s Cape Cod National Seashore in Massachusetts. USGS scientists and partners are applying the mineral olivine to the marsh to study its role in capturing carbon dioxide in tidal wetlands. Credit: Kevin Kroeger, USGS.
A salt marsh along the Herring River at the National Park Service’s Cape Cod National Seashore in Massachusetts. USGS scientists and partners are applying the mineral olivine to the marsh to study its role in capturing carbon dioxide in tidal wetlands.
A salt marsh along the Herring River at the National Park Service’s Cape Cod National Seashore in Massachusetts. USGS scientists and partners are applying the mineral olivine to the marsh to study its role in capturing carbon dioxide in tidal wetlands.
A salt marsh along the Herring River at the National Park Service’s Cape Cod National Seashore in Massachusetts. USGS scientists and partners are applying the mineral olivine to the marsh to study its role in capturing carbon dioxide in tidal wetlands. Credit: Kevin Kroeger, USGS.
A salt marsh along the Herring River at the National Park Service’s Cape Cod National Seashore in Massachusetts. USGS scientists and partners are applying the mineral olivine to the marsh to study its role in capturing carbon dioxide in tidal wetlands. Credit: Kevin Kroeger, USGS.
The δ13C signature of dissolved organic and inorganic carbon reveals complex carbon transformations within a salt marsh The δ13C signature of dissolved organic and inorganic carbon reveals complex carbon transformations within a salt marsh
Evidence of mineral alteration in a salt marsh subterranean estuary: Implications for carbon and trace element cycling Evidence of mineral alteration in a salt marsh subterranean estuary: Implications for carbon and trace element cycling
Evidence of nitrate attenuation in intertidal and subtidal groundwater in a subterranean estuary at a Cape Cod embayment, East Falmouth, Massachusetts, 2015–16 Evidence of nitrate attenuation in intertidal and subtidal groundwater in a subterranean estuary at a Cape Cod embayment, East Falmouth, Massachusetts, 2015–16
U.S. Geological Survey research and assessments supporting carbon dioxide removal U.S. Geological Survey research and assessments supporting carbon dioxide removal
Tracking mangrove condition changes using dense Landsat time series Tracking mangrove condition changes using dense Landsat time series
U.S. Geological Survey climate science plan—Future research directions U.S. Geological Survey climate science plan—Future research directions
Science and Products
Quantifying Restoration Impacts on Wetland Ecosystem Health and Carbon Export
Sea level Rise and Carbon Cycle Processes in Managed Coastal Wetlands
Wetland Carbon Working Group: Improving Methodologies and Estimates of Carbon and Greenhouse Gas Flux in Wetlands
Submarine Groundwater Discharge
Global Science and Data Network for Coastal Blue Carbon (SBC)
NASA-USGS National Blue Carbon Monitoring System
Geochemical Data Supporting Analysis of Fate and Transport of Nitrogen in the Nearshore Groundwater and Subterranean Estuary near East Falmouth, Massachusetts, 2015-2016 Geochemical Data Supporting Analysis of Fate and Transport of Nitrogen in the Nearshore Groundwater and Subterranean Estuary near East Falmouth, Massachusetts, 2015-2016
Inventory of Managed Coastal Wetlands in Delaware Bay and Delaware's Inland Bays Inventory of Managed Coastal Wetlands in Delaware Bay and Delaware's Inland Bays
Restoration and Conservation Opportunity Maps for the conterminous U.S. (CONUS) Restoration and Conservation Opportunity Maps for the conterminous U.S. (CONUS)
Nearshore groundwater seepage and geochemical data measured in 2015 at Guinea Creek, Rehoboth Bay, Delaware Nearshore groundwater seepage and geochemical data measured in 2015 at Guinea Creek, Rehoboth Bay, Delaware
Carbon dioxide and methane fluxes with supporting environmental data from coastal wetlands across Cape Cod, Massachusetts (ver 2.0, June 2022) Carbon dioxide and methane fluxes with supporting environmental data from coastal wetlands across Cape Cod, Massachusetts (ver 2.0, June 2022)
Continuous Water Level, Salinity, and Temperature Data from Coastal Wetland Monitoring Wells, Cape Cod, Massachusetts (ver. 3.0, September 2025) Continuous Water Level, Salinity, and Temperature Data from Coastal Wetland Monitoring Wells, Cape Cod, Massachusetts (ver. 3.0, September 2025)
A sediment core extracted from a salt marsh along the Herring River at the National Park Service’s Cape Cod National Seashore in Massachusetts. USGS scientists and partners are applying the mineral olivine to the marsh to study its role in capturing carbon dioxide in tidal wetlands. Credit: Kevin Kroeger, USGS.
A sediment core extracted from a salt marsh along the Herring River at the National Park Service’s Cape Cod National Seashore in Massachusetts. USGS scientists and partners are applying the mineral olivine to the marsh to study its role in capturing carbon dioxide in tidal wetlands. Credit: Kevin Kroeger, USGS.
A salt marsh along the Herring River at the National Park Service’s Cape Cod National Seashore in Massachusetts. USGS scientists and partners are applying the mineral olivine to the marsh to study its role in capturing carbon dioxide in tidal wetlands.
A salt marsh along the Herring River at the National Park Service’s Cape Cod National Seashore in Massachusetts. USGS scientists and partners are applying the mineral olivine to the marsh to study its role in capturing carbon dioxide in tidal wetlands.
A salt marsh along the Herring River at the National Park Service’s Cape Cod National Seashore in Massachusetts. USGS scientists and partners are applying the mineral olivine to the marsh to study its role in capturing carbon dioxide in tidal wetlands. Credit: Kevin Kroeger, USGS.
A salt marsh along the Herring River at the National Park Service’s Cape Cod National Seashore in Massachusetts. USGS scientists and partners are applying the mineral olivine to the marsh to study its role in capturing carbon dioxide in tidal wetlands. Credit: Kevin Kroeger, USGS.
The δ13C signature of dissolved organic and inorganic carbon reveals complex carbon transformations within a salt marsh The δ13C signature of dissolved organic and inorganic carbon reveals complex carbon transformations within a salt marsh
Evidence of mineral alteration in a salt marsh subterranean estuary: Implications for carbon and trace element cycling Evidence of mineral alteration in a salt marsh subterranean estuary: Implications for carbon and trace element cycling
Evidence of nitrate attenuation in intertidal and subtidal groundwater in a subterranean estuary at a Cape Cod embayment, East Falmouth, Massachusetts, 2015–16 Evidence of nitrate attenuation in intertidal and subtidal groundwater in a subterranean estuary at a Cape Cod embayment, East Falmouth, Massachusetts, 2015–16
U.S. Geological Survey research and assessments supporting carbon dioxide removal U.S. Geological Survey research and assessments supporting carbon dioxide removal
Tracking mangrove condition changes using dense Landsat time series Tracking mangrove condition changes using dense Landsat time series
U.S. Geological Survey climate science plan—Future research directions U.S. Geological Survey climate science plan—Future research directions
*Disclaimer: Listing outside positions with professional scientific organizations on this Staff Profile are for informational purposes only and do not constitute an endorsement of those professional scientific organizations or their activities by the USGS, Department of the Interior, or U.S. Government