Interannual and Decadal Variability in Tropical Pacific Chlorophyll from a Statistical Reconstruction: 1958-2008

Schollaert Uz, Stephanie; Busalacchi, Antonio J.; Smith, Thomas M.; Evans, Michael N.; Brown, Christopher W.; Hackert, Eric C.

doi:10.1175/jcli-d-16-0202.1

i

Interannual and Decadal Variability in Tropical Pacific Chlorophyll from a Statistical Reconstruction: 1958-2008

2017
By Schollaert Uz, Stephanie ; Busalacchi, Antonio J. ; Smith, Thomas M.
Source Journal of Climate, 30(18), 7293-7315

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Journal Title:

Journal of Climate
Personal Author:

Schollaert Uz, Stephanie ; Busalacchi, Antonio J. ; Smith, Thomas M. ; Evans, Michael N. ; Brown, Christopher W. ; Hackert, Eric C.
NOAA Program & Office:

NESDIS (National Environmental Satellite, Data, and Information Service) ; STAR (Center for Satellite Applications and Research) ; CICSM (Cooperative Institute for Climate and Satellites Maryland)
Description:

Historical understanding of marine biological dynamics has been limited by sparse in situ observations and the fact that dedicated ocean color satellite remote sensing only began in 1997. From these observations, it has become clear that physical oceanography controls biological variability over seasonal to interannual time scales. To quantify how multidecadal, climate-scale patterns impact biological productivity, the strong correlation with sea surface temperature and sea surface height is utilized to reconstruct a retrospective 51-yr time series of surface chlorophyll, the pigment measured by ocean color satellites. The canonical correlation analysis statistical reconstruction demonstrates greatest skill away from land and within about 10° of the equator where chlorophyll variance is greatest and predominantly associated with El Niño–Southern Oscillation dynamics. Differences in chlorophyll patterns between east or central Pacific El Niño events are observed, with larger declines east of 180° for east Pacific events and west of 180° for central Pacific events. Additionally, small but significant decadal variations in chlorophyll patterns are observed corresponding to the Pacific decadal oscillation. Decadal changes in chlorophyll west of 180° are consistent with increased stratification, whereas changes between 110°–140°W may be related to long-term shoaling of the nutrient-bearing equatorial undercurrent.
Keywords:
- El Niño–Southern Oscillation (ENSO)
- Sea surface temperature
Source:

Journal of Climate, 30(18), 7293-7315
DOI:

https://doi.org/10.1175/jcli-d-16-0202.1
Document Type:

Journal Article
Funding:

Grant no. NA09NES4400006
Place as Subject:

Pacific Ocean
Rights Information:

Other
Compliance:

Submitted
Download URL:

https://repository.library.noaa.gov/view/noaa/43922/noaa_43922_DS1.pdf
File Type:

[PDF - 3.29 MB]
Collection(s):

NOAA Cooperative Institutes ; National Environmental Satellite and Data Information Service (NESDIS)
Main Document Checksum:

urn:sha256:e75fc72408d9c57901329da2eeb78cc71b521ecfb64021185854be8d6b093173

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