Mark Rockhold

X-Ray Computed Tomography of Sediment Samples

Lead Institution

Pacific Northwest National Laboratory

Principal Investigator

Danielle Saunders

Project type

Contracted Time

We propose to use X-ray computed tomography (XCT) to generate 3-D images of sediment cores to aid in describing the physical characteristics of the subsurface. Intact core sediments (e.g., from the…

X-Ray Computed Tomography of Sediment Samples

Lead Institution

Pacific Northwest National Laboratory

Principal Investigator

Michelle Valenta Snyder

We propose to use X-ray computed tomography (XCT) to generate 3-D images of sediment cores to aid in describing the physical characteristics of the subsurface. Intact core sediments (e.g., from the…

Enabling Quantitatively Predictive Understanding of Multifluid Flow and Multicomponent Biogeochemical Reactive Transport in Complex, Subsurface Systems

Lead Institution

Pacific Northwest National Laboratory

Principal Investigator

Steven Yabusaki

Project type

Capability Research

The activities described in this proposal are directed at the goal of a quantitatively mechanistic predictive understanding of multifluid flow and multicomponent biogeochemical reactive transport in…

Role of Microenvironments and Transition Zones in Field scale microbial ecology and biogeochemistry

Lead Institution

Pacific Northwest National Laboratory

Principal Investigator

James McKinley

Project type

Exploratory Research

This is a renewal proposal for a previous collaborative effort between the PNNL Scientific Focus Area (SFA) and EMSL. The research proposed will resolve critical Hanford and basic subsurface science…

Role of Microenvironments and Transition Zones in Field Scale Microbial Ecology and Biogeochemistry

Lead Institution

Pacific Northwest National Laboratory

Principal Investigator

James McKinley

Project type

Limited Scope

This is a renewal proposal for a previous collaborative effort between the PNNL Scientific Focus Area (SFA) and EMSL. The research proposed will resolve critical Hanford and basic subsurface science…

The Role of Microenvironments and Physicochemical Subsurface Components on Field Scale Biogeochemistry and Contaminant Mobility

Lead Institution

Pacific Northwest National Laboratory

Principal Investigator

James McKinley

Project type

Exploratory Research

This is a renewal proposal for a previous collaborative effort between the PNNL Scientific Focus Area (SFA) and EMSL. The research proposed will resolve critical Hanford and basic subsurface science…

Role of Microenvironments and Transition Zones in Subsurface Reactive Contaminant Transport

Lead Institution

Pacific Northwest National Laboratory

Principal Investigator

James McKinley

This is a renewal proposal for a previous collaborative effort between the PNNL Scientific Focus Area (SFA) and EMSL. The research proposed will resolve critical Hanford and basic subsurface science…

Role of Microenvironments and Transition Zones in Subsurface Reactive Contaminant Transport

Lead Institution

Pacific Northwest National Laboratory

Principal Investigator

James McKinley

This is a renewal proposal for a previous collaborative effort between the PNNL Scientific Focus Area (SFA) and EMSL. The research proposed will resolve critical Hanford and basic subsurface science…

Hydro-Biogeochemical Process Dynamics in the Groundwater-Surface Water Interaction Zone

Lead Institution

Pacific Northwest National Laboratory

Principal Investigator

John Zachara

This is a renewal proposal for a previous collaborative effort between the PNNL Scientific Focus Area (SFA) and EMSL.PNNL Scientific Focus Area. The PNNL SFA will develop a predictive understanding…

Hydro-Biogeochemical Process Dynamics in the Groundwater-Surface Water Interaction Zone

Lead Institution

Pacific Northwest National Laboratory

Principal Investigator

John Zachara

This is a renewal proposal for a previous collaborative effort between the PNNL Scientific Focus Area (SFA) and EMSL.PNNL Scientific Focus Area. The PNNL SFA will develop a predictive understanding…

Research Innovation through Next-Generation Supercomputing (RINGS)

Lead Institution

Pacific Northwest National Laboratory

Principal Investigator

Timothy Scheibe

The subsurface environment is highly heterogeneous and structured across a wide range of physical scales. Microorganisms sense and respond to environmental conditions within a very small spatial…

Noble Gas Transport in Variably Saturated Rock Cores

Lead Institution

Pacific Northwest National Laboratory

Principal Investigator

Sean Stave

Building and refining the capability to detect and locate suspected subsurface nuclear explosions are part of United States’ security priorities (Broome et al., 2016). To improve understanding of…

Formation of Apatite in Hanford Vadose Zone Sediments by Gaseous Injection of Phosphorus Compounds

Lead Institution

Pacific Northwest National Laboratory

Principal Investigator

Mark Rockhold

Project type

Exploratory Research

Large regions of strontium-90 and technetium-99 contamination exist in the unsaturated zone at Hanford at depths that are impractical for excavation. No active remediation options have been developed…

Research Innovation through Next-Generation Supercomputing (RINGS)

Lead Institution

Pacific Northwest National Laboratory

Principal Investigator

Timothy Scheibe

The subsurface environment is highly heterogeneous and structured across a wide range of physical scales. Microorganisms sense and respond to environmental conditions within a very small spatial…

(emsl2558)Parameterization and Upscaling for Field-Scale Transport Modeling

Lead Institution

Pacific Northwest National Laboratory

Principal Investigator

Mark Rockhold

Project type

Capability Research

Field-scale modeling of water flow and solute transport processes in subsurface environments to address DOE's contaminant remediation and waste management problems frequently involves one or…

Noble Gas Transport in Variably Saturated Rock Cores

Lead Institution

Pacific Northwest National Laboratory

Principal Investigator

Mark Rockhold

Building and refining the capability to detect and locate suspected subsurface nuclear explosions are part of United States' security priorities (Broome et al., 2016). To improve understanding…

(emsl2558)Parameterization of Subsurface Flow and Transport Models for Multi-Scale Simulation

Lead Institution

Pacific Northwest National Laboratory

Principal Investigator

Mark Rockhold

Project type

Exploratory Research

Field-scale modeling of multi-fluid flow and transport processes in subsurface environments to address DOE's contaminant remediation and waste management problems generally involves one or more…

Noble Gas Transport in Variably Saturated Porous Media

Lead Institution

Pacific Northwest National Laboratory

Principal Investigator

Mark Rockhold

Building and refining the capability to detect and locate suspected subsurface nuclear explosions are part of United States’ security priorities (Broome et al., 2016). To improve understanding of…

Role of Microenvironments and Transition Zones in Subsurface Reactive Contaminant Transport

Lead Institution

Pacific Northwest National Laboratory

Principal Investigator

James McKinley

Project type

Exploratory Research

The PNNL Scientific Focus Area (SFA) will resolve critical Hanford and basic subsurface science issues through integrated, multi-disciplinary, science-theme focused research on the role of…

1000 Soils Research Campaign

Lead Institution

Environmental Molecular Sciences Laboratory

Principal Investigator

Nancy Hess

Project type

MONet

To more fully understand the cycling of carbon, carbon-based nutrients and key elements from the molecular to basin scale across variations in soil chemistry, the Environmental Molecular Sciences…

Mechanistic Modeling of Subsurface Multifluid Flow and Biogeochemical Reactive Transport

Lead Institution

Pacific Northwest National Laboratory

Principal Investigator

Steven Yabusaki

Project type

Capability Research

A reliable means of quantitatively predicting fluid movement and biogeochemistry in the subsurface environment is of significant value to the Department of Energy (DOE) and to our nation as a whole. …

(gc3573)Multifluid Flow and Multicomponent Reactive Transport in Heterogeneous Subsurface Systems

Lead Institution

Pacific Northwest National Laboratory

Principal Investigator

Steven Yabusaki

Project type

Capability Research

Long-term, scientifically defensible predictions of subsurface contaminant fate are critical to the development of remediation alternatives that can accelerate the cleanup of DOE waste sites and…

Projects