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3. Mobilization, Transport, and Depositional Controls on Carbon-Mineral Supply, Mixing, and Burial.

Q3.1: What are the dominant water and DOC source areas, flowpaths, and residence times (transit times) across CZO watersheds and stream networks?

Q3.2. How does surface/subsurface water exchange influence the movement of DOC at different scales and in different environments?

Q3.3. What are the transport pathways and residence times of mineral-carbon complexes as they move through the Piedmont uplands, the tidally influenced Coastal Plain, and the estuary?

This group is tagged with:

Geomorphology
Biogeochemistry
Hydrology
Geology / Chronology
Geochemistry / Mineralogy
Soil Science / Pedology
GIS / Remote Sensing
Modeling / Computational Science

Activities & Findings
People
Featured Publications
  • The goal of Objective 3 is to understand how carbon cycling at the watershed scale is influenced by lateral transport of water, sediment, and carbon across geophysical boundaries: from hillslopes through river valley networks to estuarine depocenters.

    Q3.1: What are the dominant water and DOC source areas, flowpaths, and residence times (transit times) across CZO watersheds and stream networks?
    H3.1: Dominant source areas and flow paths of water and DOC are spatially and vertically heterogeneous and shift from deeper alluvial groundwater to surface sources and processes with increasing wetness and storm event size/duration, with a concomitant reduction in residence times.

    Q3.2. How does surface/subsurface water exchange influence the movement of DOC at different scales and in different environments?
    H3.2. Surface water–GW exchange modifies the form, magnitude, and timing of watershed DOC fluxes, which are non-additive across different spatial scales due to the influence of geomorphic dispersion and in-stream biogeochemical processes  that modify the form, magnitude, and timing of watershed fluxes.

    Q3.3. What are the transport pathways and residence times of mineral-carbon complexes as they move through the Piedmont uplands, the tidally influenced Coastal Plain, and the estuary?
    H3.3 . Mineral-carbon complexes transported through river catchments from saprolite to sea, periodically cycle between freshwater aquatic and floodplain environments before entering estuarine depocenters. Mineral-carbon complex transit times and transport distances in the Piedmont uplands are event-driven and related to the velocity of water flow during storm events. With downstream direction and longer distances particle storage becomes increasingly certain, time-averaged velocities of downstream transport are dominated by storage transit times and movement during events becomes increasingly irrelevant.

  • Contacts

    7 People

    Rolf Aalto

    INVESTIGATOR

    .(JavaScript must be enabled to view this email address)
    Univ. of Exeter
    Geomorphology; sediment fingerprinting, dating and stratigraphy

    Anthony Aufdenkampe

    INVESTIGATOR

    .(JavaScript must be enabled to view this email address), 610.268.2153 x 263

    Stroud Water Res. Ctr.
    Univ. Delaware
    Carbon-mineral complexation, transport and fate

    Jinjun Kan

    INVESTIGATOR

    , 610.268.2153 x280
    Stroud Water Res. Ctr.
    Environmental Microbiology

    Diana Karwan

    Cross-CZO INVESTIGATOR

    .(JavaScript must be enabled to view this email address), 612.624.3400
    Univ. of Minnesota
    Univ. Delaware
    Stroud Water Res. Ctr.
    Hydrology and biogeochemistry

    J. Denis Newbold

    INVESTIGATOR

    .(JavaScript must be enabled to view this email address), 610.268.2153 x227
    Stroud Water Res. Ctr.
    Sediment transport; hydrological modeling and data synthesis

    Adam Pearson

    GRAD STUDENT

    .(JavaScript must be enabled to view this email address)
    Univ. Delaware
    Geomorphology

    Jim Pizzuto

    INVESTIGATOR

    PI, CRB Objective 3 Lead

    .(JavaScript must be enabled to view this email address), 302.831.2710
    Univ. Delaware
    Watershed geomorphology and sediment budgets

  • Featured Publications

    2011

    Riverine coupling of biogeochemical cycles between land, oceans, and atmosphere. Aufdenkampe, A. K., Mayorga, E., Raymond, P. A., Melack, J. M., Doney, S. C., Alin, S. R., Aalto, R. E., and Yoo, K. (2011): Frontiers in Ecology and the Environment 9:53-60.