Ocean primary production and climate: Global decadal changes
@article{Gregg2003OceanPP, title={Ocean primary production and climate: Global decadal changes}, author={Watson W. Gregg and Margarita E. Conkright and Paul A. Ginoux and John E. O'Reilly and Nancy W. Casey}, journal={Geophysical Research Letters}, year={2003}, volume={30} }
Satellite‐in situ blended ocean chlorophyll records indicate that global ocean annual primary production has declined more than 6% since the early 1980's. Nearly 70% of the global decadal decline occurred in the high latitudes. In the northern high latitudes, these reductions in primary production corresponded with increases in sea surface temperature and decreases in atmospheric iron deposition to the oceans. In the Antarctic, the reductions were accompanied by increased wind stress. Three of…
368 Citations
Decline of the marine ecosystem caused by a reduction in the Atlantic overturning circulation
- Environmental ScienceNature
- 2005
In the simulations, a disruption of the Atlantic meridional overturning circulation leads to a collapse of the North Atlantic plankton stocks to less than half of their initial biomass, owing to rapid shoaling of winter mixed layers and their associated separation from the deep ocean nutrient reservoir.
Phytoplankton decline in the eastern North Pacific transition zone associated with atmospheric blocking
- Environmental ScienceGlobal change biology
- 2019
It is shown that high-latitude atmospheric blocking events over Alaska are the primary drivers of the recent decline of Chla in the eastern North Pacific transition zone and a mechanism of the top-down teleconnection between the high latitude atmospheric circulation anomalies and the subtropical oceanic primary productivity is proposed.
North‐South asymmetry in the modeled phytoplankton community response to climate change over the 21st century
- Environmental Science
- 2013
Here we analyze the impact of projected climate change on plankton ecology in all major ocean biomes over the 21st century, using a multidecade (1880–2090) experiment conducted with the Community…
North-South asymmetry in the modeled phytoplankton community response to climate change over the 21 st century
- Environmental Science
- 2014
[1] Here we analyze the impact of projected climate change on plankton ecology in all major ocean biomes over the 21st century, using a multidecade (1880–2090) experiment conducted with the Community…
Effects of future climate change on primary productivity and export fluxes in the Beaufort Sea
- Environmental Science
- 2010
[1] We present projections of future primary production for the Canadian Beaufort Shelf of the Arctic Ocean, using simulations of future climate change from the Canadian Global Climate Model (CGCM2)…
Detection of anthropogenic climate change in satellite records of ocean chlorophyll and productivity
- Environmental Science
- 2010
Abstract. Global climate change is predicted to alter the ocean's biological productivity. But how will we recognise the impacts of climate change on ocean productivity? The most comprehensive…
Observations: Oceanic Climate Change and Sea Level
- Environmental Science
- 2007
The oceans are warming. Over the period 1961 to 2003,
global ocean temperature has risen by 0.10°C from the
surface to a depth of 700 m. Consistent with the Third
Assessment Report (TAR), global…
Increasing Biomass in the Warm Oceans: Unexpected New Insights From SeaWiFS
- Environmental ScienceGeophysical Research Letters
- 2019
Marine phytoplankton biomass and community structure are expected to change under global warming, with potentially significant impacts on ocean carbon, nutrient cycling, and marine food webs.…
Long-term trends in ocean plankton production and particle export between 1960–2006
- Environmental Science
- 2013
We analyse long-term trends in marine primary and particle export production and their link to marine phytoplankton community composition for the period 1960–2006 using a hindcast simulation of the…
Paleodust variability since the Last Glacial Maximum and implications for iron inputs to the ocean
- Environmental Science
- 2016
Changing climate conditions affect dust emissions and the global dust cycle, which in turn affects climate and biogeochemistry. In this study we use observationally constrained model reconstructions…
References
SHOWING 1-10 OF 36 REFERENCES
Decadal changes in global ocean chlorophyll
- Environmental Science
- 2002
The global ocean chlorophyll archive produced by the CZCS was revised using compatible algorithms with SeaWiFS. Both archives were then blended with in situ data to reduce residual errors. This…
Biospheric Primary Production During an ENSO Transition
- Environmental ScienceScience
- 2001
Increases in ocean NPP were pronounced in tropical regions where El Niño–Southern Oscillation impacts on upwelling and nutrient availability were greatest, and Globally, land NPP did not exhibit a clear ENSO response, although regional changes were substantial.
Biogeochemical Controls and Feedbacks on Ocean Primary Production
- Environmental ScienceScience
- 1998
Elucidating the biogeochemical controls and feedbacks on primary production is essential to understanding how oceanic biota responded to and affected natural climatic variability in the geological past, and will respond to anthropogenically influenced changes in coming decades.
Simulated response of the ocean carbon cycle to anthropogenic climate warming
- Environmental ScienceNature
- 1998
A 1995 report of the Intergovernmental Panel on Climate Change provides a set of illustrative anthropogenic CO2 emission models leading to stabilization of atmospheric CO2 concentrations ranging from…
Long-term changes in plankton community structure and productivity in the North Pacific Subtropical Gyre: The domain shift hypothesis
- Environmental Science
- 2001
Global seasonal climatologies of ocean chlorophyll: Blending in situ and satellite data for the Coastal Zone Color Scanner era
- Environmental Science
- 2001
The historical archives of in situ (National Oceanographic Data Center) and satellite (Coastal Zone Color Scanner (CZCS)) chlorophyll data were combined using the blended analysis method of Reynolds…
Basin-scale variability of phytoplankton biomass, production and growth in the Atlantic Ocean
- Environmental Science
- 2000
Atmospheric pCO2 sensitivity to the biological pump in the ocean
- Environmental Science
- 2000
In models of the global carbon cycle, the pCO2of the atmosphere is more sensitive to the chemistry of the high‐latitude surface ocean than the tropical ocean. Because sea‐surface nutrient…
Widespread iron limitation of phytoplankton in the south pacific ocean
- Environmental ScienceScience
- 1999
Results suggest that primary productivity is iron limited not only throughout the equatorial Pacific but also over much of the vast South Pacific gyre.
Evolution of the nitrogen cycle and its influence on the biological sequestration of CO2 in the ocean
- Environmental Science, GeographyNature
- 1997
Over geological time, photosynthetic carbon fixation in the oceans has exceeded respiratory oxidation of organic carbon. The imbalance between the two processes has resulted in the simultaneous…