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Showing 1–6 of 6 results
Advanced filters: Author: Durelle Scott Clear advanced filters

  • Glacier-derived dissolved organic matter represents a quantitatively significant source of ancient, but bioavailable, carbon to downstream ecosystems. Anthropogenic aerosols supply glaciers with aged organic matter, according to an analysis of organic matter from glaciers in Alaska.

    • Aron Stubbins
    • Eran Hood
    • Robert G. M. Spencer
    Research
    Nature Geoscience
    Volume: 5, P: 198-201

  • Coastal ecosystems are sensitive to changes in the quantity and lability of terrigenous dissolved organic matter (DOM) delivered by rivers. The lability of DOM is thought to decrease with age, but this view stems from work in watersheds where terrestrial plant and soil sources dominate streamwater DOM. Here, glaciated watersheds on the Gulf of Alaska are shown to be a source of old but labile dissolved organic matter, suggesting that glacial runoff is an important source of labile reduced carbon to marine ecosystems.

    • Eran Hood
    • Jason Fellman
    • Durelle Scott
    Research
    Nature
    Volume: 462, P: 1044-1047

  • Dissolved organic matter and nutrients from high-latitude coastal watersheds stimulate microbial activity and primary productivity in near-shore ecosystems. A survey of southeast Alaskan watersheds suggests that the extent of glacial coverage may control the release of these nutrients to rivers and ultimately the oceans.

    • Eran Hood
    • Durelle Scott
    Research
    Nature Geoscience
    Volume: 1, P: 583-587

  • The variations in overbank flow from rivers onto floodplains from regional to continental scales are understudied. Here, the authors investigate this variation as a function of hydroclimatic parameters and channel size in the conterminous U.S. and find that the timing of floodplain inundation is largely controlled by regional factors, while the frequency, duration and magnitude of these inundations vary consistently with channel size.

    • Durelle T. Scott
    • Jesus D. Gomez-Velez
    • Judson W. Harvey
    ResearchOpen Access
    Nature Communications
    Volume: 10, P: 1-8

  • Lakes, reservoirs, and other ponded waters are common in large river basins yet their influence on nitrogen budgets is often indistinct. Here, the authors show how a ponded waters’ relative size, shape, and degree of connectivity to the river network control nitrogen removal.

    • Noah M. Schmadel
    • Judson W. Harvey
    • Durelle Scott
    ResearchOpen Access
    Nature Communications
    Volume: 9, P: 1-10