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A global ocean dissolved organic phosphorus concentration database (DOPv2021).

Zhou Liang1, Kelly McCabe2, Sarah E Fawcett3,4

  • 1Department of Earth, Ocean, and Atmospheric Science, Florida State University, Tallahassee, FL, USA. zl18c@fsu.edu.

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|December 16, 2022
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Summary

A new database of dissolved organic phosphorus (DOP) concentrations in the global surface ocean was created. This dataset aids understanding of marine biogeochemical processes like nitrogen fixation and primary production.

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Area of Science:

  • Marine biogeochemistry
  • Oceanography
  • Nutrient cycling

Background:

  • Dissolved organic phosphorus (DOP) is crucial for marine biogeochemical cycles, influencing nitrogen fixation and primary production.
  • Limited marine DOP concentration data exists due to analytical challenges, hindering comprehensive understanding.
  • Existing data primarily focuses on dissolved organic carbon and nitrogen.

Purpose of the Study:

  • To compile a comprehensive database of marine dissolved organic phosphorus (DOP) concentrations.
  • To provide insights into the spatial distribution of DOP in the global surface ocean.
  • To support research on marine primary production and nitrogen fixation.

Main Methods:

  • Compilation of new (n=730) and previously published (n=3140) marine DOP observations.
  • Inclusion of data spanning approximately 30 years (1990-2021).
  • Focus on surface ocean observations, including 1751 measurements in the upper 50m.

Main Results:

  • The DOPv2021 database includes over 3800 observations from all major ocean basins.
  • The dataset incorporates data from underrepresented regions like the Indian, South Pacific, and Southern Oceans.
  • Provides a valuable resource for understanding global DOP distribution.

Conclusions:

  • The DOPv2021 database represents a significant advancement in marine DOP research.
  • This comprehensive dataset will enhance our understanding of marine biogeochemical processes.
  • Facilitates future research on nutrient dynamics and primary productivity in the global ocean.