Annual variations in phytoplankton biomass driven by small-scale physical processes - IRD - Institut de recherche pour le développement Access content directly
Journal Articles Nature Geoscience Year : 2022

Annual variations in phytoplankton biomass driven by small-scale physical processes

Abstract

Phytoplankton biomass exhibits substantial year-to-year changes, and understanding these changes is crucial to fisheries management and projecting future climate. These annual changes result partly from low-frequency climate modes that also lead to variations in sea surface temperature (SST). Here we evaluate the contribution of small scales to annual fluctuations based on a global analysis of satellite observations of sea surface chlorophyll (SChl), an indicator of phytoplankton biomass, and of SST from 1999 to 2018. We disentangle the spatio-temporal scales of variability in the time series and find that besides the prominent seasonal cycle, SChl is dominated by high-frequency fluctuations (
Fichier principal
Vignette du fichier
Keerthi_etal_2021_ngeo_accepted.pdf (5.31 Mo) Télécharger le fichier
Origin Files produced by the author(s)

Dates and versions

ird-03852817 , version 1 (15-11-2022)

Identifiers

Cite

Madhavan Girijakumari Keerthi, Channing J. Prend, Olivier Aumont, Marina Lévy. Annual variations in phytoplankton biomass driven by small-scale physical processes. Nature Geoscience, 2022, ⟨10.1038/s41561-022-01057-3⟩. ⟨ird-03852817⟩
117 View
416 Download

Altmetric

Share

Gmail Mastodon Facebook X LinkedIn More