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Data Package Summary    View Full Metadata

  • Sediment pigment concentrations from lagoon sites along the Alaska Beaufort Sea coast, 2018-ongoing
  • Beaufort Lagoon Ecosystems LTER, Core Program
  • 2023-04-21
  • Beaufort Lagoon Ecosystems LTER, Core Program. 2023. Sediment pigment concentrations from lagoon sites along the Alaska Beaufort Sea coast, 2018-ongoing ver 8. Environmental Data Initiative. https://doi.org/DOI_PLACE_HOLDER (Accessed 2024-12-27).

  • The Beaufort Lagoon Ecosystems Long Term Ecological Research (BLE LTER) project seasonally collects undisturbed surface sediments during full ice cover (April), ice break-up (mid-June to early July), and open water (late July and August) periods from lagoon sites along the Beaufort Sea (Elson, Simpson, Jago, and Kaktovik lagoons, plus Stefansson Sound) to quantify algal pigment concentrations. Pigments reported are chlorophyll a, pheophorbide, pheophytin, chlorophyllide, fucoxanthin, zeaxanthin, alloxanthin, and peridinin. Pigment concentrations are measured using high-precision liquid chromatography (HPLC). Concentrations are represented both as an areal basis (mg/m2 of surface sediment) and a mass basis (μg/g of dry sediment).

    In 2022 we found that a post-analysis mathematical error generated incorrect concentration values for pigments. This error was identified in subsequent QA/QC and immediately corrected since the raw data were not in error. The entire dataset to date (2018-2021) was revised in spring 2022 with the corrected data (revision knb-lter-ble.12.2).

  • Geographic Coordinates
    • N: 71.395, S: 71.158, E: -155.914, W: -156.603
    • N: 70.138265, S: 70.085942, E: -143.33313, W: -143.511658
    • N: 70.130565, S: 70.076585, E: -143.518524, W: -143.661346
    • N: 70.557607, S: 70.495, E: -149.39209, W: -149.847336
    • N: 70.393758, S: 70.277997, E: -147.76886, W: -148.057938
  • This data package is released to the public domain under Creative Commons CC0 1.0 “No Rights Reserved” (see: https://creativecommons.org/publicdomain/zero/1.0/). It may be distributed, remixed, and built upon. You may do so in any reasonable manner, but not in any way that suggests the licensor endorses you or your use. It is considered professional etiquette to provide attribution of the original work if this data package is shared or utilized in whole or by individual components. A generic citation is provided for this data package on the website of the repository where these data were obtained in the summary metadata page. Communication (and collaboration) with the creators of this data package is recommended to prevent duplicate research or publication. The consumer of these data ("Data User" herein) is urged to contact the authors of these data if any questions about methodology or results occur. 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 duplication or inappropriate use. Where appropriate, the Data User is encouraged to consider collaboration or co-authorship with the authors. The Data User should realize that misinterpretation may occur if data are used outside of the context of the original study. The Data User should be aware that periodic updates of this data package may be available from the website and it is the responsibility of the Data User to check for new versions of the data. While substantial efforts are made to ensure the accuracy of data and associated documentation, complete accuracy cannot be guaranteed. This data package (with its components) is made available “as is” and with no warranty of accuracy or fitness for use. The creators of this data package and the repository where these data were obtained shall not be liable for any damages resulting from misinterpretation, use or misuse of the data package or its components. Thank you.
  • DOI PLACE HOLDER
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