{
  "abstract": "Headwaters-that is headwater streams and the watersheds they drain-strongly influence water quality, ecosystem services, and hydrologic connectivity, yet remain poorly mapped, monitored, and understood at large spatial scales. Using available spatial data to classify headwater \"types\" could therefore enhance the utility of sparse monitoring data to advance research and watershed planning-and help update literature-based perceptual models of headwaters as steep, forested, and minimally disturbed watersheds. Here, we analyze headwaters across the contiguous United States to quantify how their attributes (climate, topography, land cover, soils) vary regionally and differ from their downstream watersheds. Our analysis (a) identified seven dominant headwater types with distinct combinations of biophysical and climatic attributes and (b) revealed systematic contrasts with downstream watersheds, with strongest differences in attributes representing potential flowpath depth. Our findings offer a transferable framework for classifying, modeling, and managing these critical yet understudied components of the hydrologic network.",
  "abstract_shown": true,
  "affiliations": [
    "Kansas Geological Survey, University of Kansas, Lawrence, KS, USA.",
    "Department of Geology, University of Kansas, Lawrence, KS, USA.",
    "U.S. Geological Survey, Maryland-Delaware-D.C. Water Science Center, Baltimore, MD, USA.",
    "Department of Civil and Environmental Engineering, Virginia Tech, Blacksburg, VA, USA.",
    "Department of Geography, San Diego State University, San Diego, CA, USA.",
    "U.S. Environmental Protection Agency, Office of Applied Science and Environmental Solutions, Cincinnati, OH, USA.",
    "U.S. Environmental Protection Agency, Office of Wetlands, Oceans and Watersheds, Cincinnati, OH, USA.",
    "Department of Forest Engineering, Resources, and Management, Oregon State University, Corvallis, OR, USA.",
    "Soil and Environmental Sciences Department, University of Wisconsin, Madison, WI, USA.",
    "USDA Forest Service Pacific Northwest Research Station, Portland, OR, USA.",
    "U.S. Geological Survey, Washington Water Science Center, Tacoma, WA, USA.",
    "Department of Civil and Environmental Engineering, The Pennsylvania State University, State College, PA, USA.",
    "Department of Civil and Environmental Engineering, University of Louisville, Louisville, KY, USA.",
    "Department of Environmental Sciences, University of Virginia, Charlottesville, VA, USA.",
    "Biological Sciences, University of Alabama, Tuscaloosa, AL, USA.",
    "Department of Civil and Environmental Engineering, Lafayette College, Easton, PA, USA.",
    "U.S. Geological Survey, Wyoming-Montana Water Science Center, Helena, MT, USA.",
    "Lane Ecological Advisory LLC, Pewaukee, WI, USA.",
    "Biological and Ecological Engineering Department, Oregon State University, Corvallis, OR, USA."
  ],
  "article_type": "research article",
  "arxiv": null,
  "author_total": 18,
  "authors": [
    {
      "affs": [
        0,
        1
      ],
      "name": "E C Seybold",
      "orcid": "0000-0002-0365-2333"
    },
    {
      "affs": [
        2
      ],
      "name": "J Hammond",
      "orcid": "0000-0002-4935-0736"
    },
    {
      "affs": [
        3
      ],
      "name": "A Husic",
      "orcid": "0000-0002-4225-2252"
    },
    {
      "affs": [
        4
      ],
      "name": "H McMillan",
      "orcid": "0000-0002-9330-9730"
    },
    {
      "affs": [
        5
      ],
      "name": "H E Golden",
      "orcid": "0000-0001-5501-9444"
    },
    {
      "affs": [
        6
      ],
      "name": "J R Christensen",
      "orcid": "0000-0003-4961-6132"
    },
    {
      "affs": [
        7
      ],
      "name": "C Segura",
      "orcid": "0000-0002-0924-1172"
    },
    {
      "affs": [
        8
      ],
      "name": "M Zimmer"
    },
    {
      "affs": [
        9
      ],
      "name": "A N Price",
      "orcid": "0000-0002-7211-4758"
    },
    {
      "affs": [
        10
      ],
      "name": "K L Jaeger",
      "orcid": "0000-0002-1209-8506"
    },
    {
      "affs": [
        11
      ],
      "name": "L Li",
      "orcid": "0000-0002-1641-3710"
    },
    {
      "affs": [
        12
      ],
      "name": "D T Mahoney"
    },
    {
      "affs": [
        13
      ],
      "name": "F Cheng",
      "orcid": "0000-0002-8674-9383"
    },
    {
      "affs": [
        14
      ],
      "name": "C N Jones",
      "orcid": "0000-0002-5804-0510"
    },
    {
      "affs": [
        15
      ],
      "name": "C Kelleher",
      "orcid": "0000-0003-3557-201X"
    },
    {
      "affs": [
        16
      ],
      "name": "R Sando",
      "orcid": "0000-0003-0704-6258"
    },
    {
      "affs": [
        17
      ],
      "name": "C R Lane"
    },
    {
      "affs": [
        18
      ],
      "name": "A Ward",
      "orcid": "0000-0002-6376-0061"
    }
  ],
  "bibtex": "https://research.draconitic.com/paper/4wpqwm6aet8vc.bib",
  "cited_by": 0,
  "doi": "10.1029/2026gl123244",
  "fulltext_url": "https://europepmc.org/articles/PMC13679705",
  "id": "4wpqwm6aet8vc",
  "issns": [
    "0094-8276",
    "1944-8007"
  ],
  "landing_url": "https://europepmc.org/article/MED/42898964",
  "language": "eng",
  "licence": "CC-BY",
  "licence_label": "CC BY",
  "licence_source": "article",
  "licence_url": "https://creativecommons.org/licenses/by/4.0/",
  "metadata_licence": null,
  "native_subjects": [
    [
      "openalex",
      "2312|Hydrology and Watershed Management Studies"
    ]
  ],
  "openalex": "W7212157965",
  "pdf_url": "https://europepmc.org/articles/PMC13679705?pdf=render",
  "pmcid": "PMC13679705",
  "pmid": "42898964",
  "published": "2026-09-10",
  "publisher": null,
  "ris": "https://research.draconitic.com/paper/4wpqwm6aet8vc.ris",
  "sources": [
    {
      "first_seen": "2026-10-30T12:19:41Z",
      "native_id": "MED:42898964",
      "source": "europepmc",
      "url": "https://europepmc.org/article/MED/42898964"
    }
  ],
  "subjects": [
    {
      "field": "earth",
      "origin": "openalex:2312|Hydrology and Watershed Management Studies",
      "subfield": "hydrology-soils"
    }
  ],
  "title": "Emergent Headwater Types for Watershed Monitoring, Research, and Planning.",
  "title_text": "Emergent Headwater Types for Watershed Monitoring, Research, and Planning.",
  "type": "peer-reviewed",
  "updated_at": "2026-10-30T12:19:41Z",
  "url": "https://research.draconitic.com/paper/4wpqwm6aet8vc",
  "venue": "Geophysical research letters",
  "versions": []
}