Longhurst_code

Longhurst code

Longhurst code

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Longhurst code refers to a set of geospatial four-letter geocodes for referencing geographic regions in oceanography.

Modified Longhurst biogeographic provinces from Djavidnia et al.  [1]

The set of 56 geocodes represent biogeochemical provinces that partition the pelagic environment. It is assumed that each province represents a unique set of environmental conditions.[2]

They are named after Alan R. Longhurst, the author of "Ecological Geography of the Sea", the textbook in which these codes are defined.[3]

These codes have also been used in bioinformatic databases such as IMG to represent sample origins for sequenced microbial genomes, as a supplement to latitude and longitude coordinate metrics.[4]

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References

  1. [1]
    Djavidnia, S.; Mélin, F.; Hoepffner, N. (2010). "Comparison of global ocean colour data records". Ocean Science. 6 (1): 61–76. Bibcode:2010OcSci...6...61D. doi:10.5194/os-6-61-2010.
  2. [2]
    Reygondeau, Gabriel; Longhurst, Alan; Martinez, Elodie; Beaugrand, Gregory; Antoine, David; Maury, Olivier (2013). "Dynamic biogeochemical provinces in the global ocean" (PDF). Global Biogeochemical Cycles. 27 (4): 1046–1058. Bibcode:2013GBioC..27.1046R. doi:10.1002/gbc.20089. ISSN 0886-6236.
  3. [3]
    Ecological Geography of the Sea (ISBN 0124555217), Academic Press, 2007
  4. [4]
    Markowitz, V. M.; Chen, I.-M. A.; Palaniappan, K.; Chu, K.; Szeto, E.; Grechkin, Y.; Ratner, A.; Jacob, B.; Huang, J.; Williams, P.; Huntemann, M.; Anderson, I.; Mavromatis, K.; Ivanova, N. N.; Kyrpides, N. C. (2011). "IMG: the integrated microbial genomes database and comparative analysis system". Nucleic Acids Research. 40 (D1): D115–D122. doi:10.1093/nar/gkr1044. ISSN 0305-1048. PMC 3245086. PMID 22194640.
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