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  • Spatiotemporal variation in internal phosphorus loading, sediment characteristics, water column chemistry, and thermal mixing in a hypereutrophic reservoir in southwest Iowa, USA (2019-2020)
  • Albright, Ellen A; Graduate Research Assistant; University of Wisconsin-Madison
    Wilkinson, Grace M; Principal Investigator; University of Wisconsin-Madison
  • 2021-10-14
  • Albright, E.A. and G.M. Wilkinson. 2021. Spatiotemporal variation in internal phosphorus loading, sediment characteristics, water column chemistry, and thermal mixing in a hypereutrophic reservoir in southwest Iowa, USA (2019-2020) ver 1. Environmental Data Initiative. https://doi.org/DOI_PLACE_HOLDER (Accessed 2024-12-27).

  • The primary aim of the data product is to quantify seasonal and spatial variation in sediment phosphorus fluxes in a temperate reservoir and evaluate mechanisms responsible for instances of elevated sediment phosphorus release. We studied Green Valley Lake, a hypereutrophic reservoir in southwest Iowa, USA, from 2019 to 2020. We measured sediment phosphorus flux rates and potential explanatory variables at three sites along the longitudinal gradient of the reservoir over six sampling events during winter and summer stratification as well as mixing events in the spring, summer, and fall. Ex situ sediment core incubations were used to measure sediment P release rates under ambient temperature and dissolved oxygen conditions. Explanatory variables measured included sediment phosphorus chemistry, sediment physical characteristics, epilimnetic and hypolimnetic nutrient concentrations, and thermal stratification patterns. These data will be used to identify mechanisms driving hot spots and hot moments of sediment phosphorus release, which will contribute to our understanding of how areas of lakebed and times of the year can disproportionately influence whole-lake water chemistry.

  • Geographic Coordinates
    • N: 41.116783, S: 41.098317, E: -94.380067, W: -94.395133
    • N: 41.116783, S: 41.116783, E: -94.395133, W: -94.395133
    • N: 41.110783, S: 41.110783, E: -94.394633, W: -94.394633
    • N: 41.10345, S: 41.10345, E: -94.389383, W: -94.389383
    • N: 41.098317, S: 41.098317, E: -94.383883, W: -94.383883
    • N: 41.105983, S: 41.105983, E: -94.38205, W: -94.38205
    • N: 41.10945, S: 41.10945, E: -94.380067, W: -94.380067
    • N: 41.103869, S: 41.103869, E: -94.386117, W: -94.386117
    • N: 41.107, S: 41.107, E: -94.392833, W: -94.392833
  • edi.1008.1  (Uploaded 2021-10-14)  
  • View Full Metadata (74 views)
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  • Data Entities:
    1. Sediment Core Incubation, Raw Data, Green Valley Lake (2019-2020)  (30.3 KiB; 8 downloads) 
    2. Sediment Core Incubation, Calculated Data, Green Valley Lake (2019-2020)  (16.9 KiB; 12 downloads) 
    3. Sediment Core Incubation, Summarized Data, Green Valley Lake (2019-2020)  (3.8 KiB; 9 downloads) 
    4. Sediment Physical Properties, Raw Data, Green Valley Lake (2019-2020)  (5.1 KiB; 10 downloads) 
    5. Sediment Physical Properties, Calculated Data, Green Valley Lake (2019-2020)  (5.6 KiB; 7 downloads) 
    6. Sediment Phosphorus Speciation, Raw Data, Green Valley Lake (2020)  (6.1 KiB; 10 downloads) 
    7. Sediment Phosphorus Speciation, Calculated Data, Green Valley Lake (2020)  (6.1 KiB; 7 downloads) 
    8. Sediment Phosphorus Speciation, Summarized Data, Green Valley Lake (2020)  (1.9 KiB; 10 downloads) 
    9. Sediment Total Phosphorus, Raw Data, Green Valley Lake (2020)  (3.5 KiB; 7 downloads) 
    10. Sediment Total Phosphorus, Calculated Data, Green Valley Lake (2020)  (2.1 KiB; 9 downloads) 
    11. Sediment Total Phosphorus, Summarized Data, Green Valley Lake (2020)  (654 B; 10 downloads) 
    12. Water Chemistry, Raw Data, Green Valley Lake (2014-2015, 2019-2020)  (31.2 KiB; 7 downloads) 
    13. Water Temperature, Raw Data, Green Valley Lake Site 1 (2020)  (112.6 KiB; 11 downloads) 
    14. Water Temperature, Raw Data, Green Valley Lake Site 4 (2020)  (246.5 KiB; 9 downloads) 
    15. GVL_Incubation_CALC.R  (37.0 KiB; 6 downloads) 
    16. GVL_Sediment_CALC  (10.1 KiB; 6 downloads) 
    17. GVL_WaterChem_CALC  (29.4 KiB; 6 downloads) 
    18. GVL_Bathymetric_Spatial  (627.2 KiB; 6 downloads) 
  • This information is released under the Creative Commons license - Attribution - CC BY (https://creativecommons.org/licenses/by/4.0/). The consumer of these data ("Data User" herein) is required to cite it appropriately in any publication that results from its use. The Data User should realize that these data may be actively used by others for ongoing research and that coordination may be necessary to prevent duplicate publication. The Data User is urged to contact the authors of these data if any questions about methodology or results occur. Where appropriate, the Data User is encouraged to consider collaboration or co-authorship with the authors. The Data User should realize that misinterpretation of data may occur if used out of context of the original study. While substantial efforts are made to ensure the accuracy of data and associated documentation, complete accuracy of data sets cannot be guaranteed. All data are made available "as is." The Data User should be aware, however, that data are updated periodically and it is the responsibility of the Data User to check for new versions of the data. The data authors and the repository where these data were obtained shall not be liable for damages resulting from any use or misinterpretation of the data. Thank you.
  • DOI PLACE HOLDER
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