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Open AccessArticle

Integrated Technology for Evaluation and Assessment of Multi-Scale Hydrological Systems in Managing Nonpoint Source Pollution

1
Department of Geosciences, Middle Tennessee State University, Murfreesboro, TN 37132, USA
2
National Sedimentation Laboratory, United States Department of Agriculture, Oxford, MS 38655, USA
*
Author to whom correspondence should be addressed.
Academic Editors: Elmira Hassanzadeh, Monireh Faramarzi, Ilyas Masih, Ali Mirchi, Marcio Giacomoni and Rebecca Teasley
Water 2021, 13(6), 842; https://doi.org/10.3390/w13060842
Received: 19 February 2021 / Revised: 9 March 2021 / Accepted: 15 March 2021 / Published: 19 March 2021
Conservation agencies need information to guide planning activities and allocation of limited mitigation resources at regional scales. Utilization of hydrological modeling tools at sub-watershed scales can adequately represent existing conditions, but information on a few discrete uncoordinated efforts cannot be scaled up to the entire region. Conversely, large scale modeling studies suffer from overgeneralization caused by needed lumping of information. In this study, a multiscale and standardized procedure was sought to characterize water and nonpoint source pollution spatiotemporal dynamics at basin-scale but through detailed field-scale analysis. The AnnAGNPS watershed pollution model was enhanced with new capabilities for simulation of large areas based on an Integrated Technology for Evaluation and Assessment of Multi-scale-hydrological Systems (ITEAMS) approach. Comparisons between the standard and proposed ITEAMS approach indicated no difference in streamflow and small underestimation of suspended sediments during high intensity rainfall events. The ITEAMS approach was applied to a basin with a total area of 3,268,691 ha which was discretized into 469,628 sub-catchments with an average size of 6.8 ha. The resulting 366 linked AnnAGNPS simulations were executed hierarchically generating estimates of water and suspended sediment yield and loads. This pilot study revealed the ITEAMS approach is a viable alternative for modeling and simulating large areas but at high spatiotemporal resolution. View Full-Text
Keywords: watershed simulation; soil erosion; AnnAGNPS; nonpoint source pollution; multi-scale analysis; spatial decision support tool watershed simulation; soil erosion; AnnAGNPS; nonpoint source pollution; multi-scale analysis; spatial decision support tool
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MDPI and ACS Style

Momm, H.; Bingner, R.; Wells, R.; Moore, K.; Herring, G. Integrated Technology for Evaluation and Assessment of Multi-Scale Hydrological Systems in Managing Nonpoint Source Pollution. Water 2021, 13, 842. https://doi.org/10.3390/w13060842

AMA Style

Momm H, Bingner R, Wells R, Moore K, Herring G. Integrated Technology for Evaluation and Assessment of Multi-Scale Hydrological Systems in Managing Nonpoint Source Pollution. Water. 2021; 13(6):842. https://doi.org/10.3390/w13060842

Chicago/Turabian Style

Momm, Henrique; Bingner, Ron; Wells, Robert; Moore, Katy; Herring, Glenn. 2021. "Integrated Technology for Evaluation and Assessment of Multi-Scale Hydrological Systems in Managing Nonpoint Source Pollution" Water 13, no. 6: 842. https://doi.org/10.3390/w13060842

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