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<p>The introduction of European-style agriculture to the Upper Mississippi River Basin (U.S.) severely destabilized geomorphic systems and hydrologic regimes. Minnesota’s Whitewater River Valley exemplifies this phenomenon in microcosm as severe erosion, sedimentation, and flooding forced residents to abandon their villages and farmland within a century of habitation. Federal agencies studied this at the basin scale and, via transect boring and elevation surveys, built a near-140-year record of floodplain evolution along 107 cross sections. Here, we distill eight decades of historical primary source materials into digitized and geospatially registered (meta)data that capture the initial geomorphic state of the river-valley network and its response to anthropogenic forcing and landscape transformation between the 19th and 20th centuries. Patterns of aggradation and incision demonstrate floodplain construction and long-profile evolution—frequently simulated but rarely observed—alongside concurrent channel geometry adjustments. By converting this data into distributable and georeferenced digital forms, we provide an exemplary record of impacts to fluvial systems via agricultural intensification and ground-truth efforts to simulate and predict landscape evolution in accessible multi-format.</p>

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A 140-year record of stream and valley sedimentation in the Whitewater River Valley, Minnesota, United States

  • 期刊论文

  • 出版模式：

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  • 发表日期：

    2026年7月17日

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  • Jimmy J. Wood,
  • Andrew D. Wickert,
  • Phillip H. Larson,
  • Lawrence Svien

摘要

The introduction of European-style agriculture to the Upper Mississippi River Basin (U.S.) severely destabilized geomorphic systems and hydrologic regimes. Minnesota’s Whitewater River Valley exemplifies this phenomenon in microcosm as severe erosion, sedimentation, and flooding forced residents to abandon their villages and farmland within a century of habitation. Federal agencies studied this at the basin scale and, via transect boring and elevation surveys, built a near-140-year record of floodplain evolution along 107 cross sections. Here, we distill eight decades of historical primary source materials into digitized and geospatially registered (meta)data that capture the initial geomorphic state of the river-valley network and its response to anthropogenic forcing and landscape transformation between the 19th and 20th centuries. Patterns of aggradation and incision demonstrate floodplain construction and long-profile evolution—frequently simulated but rarely observed—alongside concurrent channel geometry adjustments. By converting this data into distributable and georeferenced digital forms, we provide an exemplary record of impacts to fluvial systems via agricultural intensification and ground-truth efforts to simulate and predict landscape evolution in accessible multi-format.