Intensification and spatial homogenization of coastal upwelling under climate change

  title={Intensification and spatial homogenization of coastal upwelling under climate change},
  author={Daiwei Wang and Tarik C Gouhier and Bruce A. Menge and Auroop Ratan Ganguly},
The timing and strength of wind-driven coastal upwelling along the eastern margins of major ocean basins regulate the productivity of critical fisheries and marine ecosystems by bringing deep and nutrient-rich waters to the sunlit surface, where photosynthesis can occur. How coastal upwelling regimes might change in a warming climate is therefore a question of vital importance. Although enhanced land–ocean differential heating due to greenhouse warming has been proposed to intensify coastal… 
Under Pressure: Climate Change, Upwelling, and Eastern Boundary Upwelling Ecosystems
The IPCC AR5 provided an overview of the likely effects of climate change on Eastern Boundary Upwelling Systems (EBUS), stimulating increased interest in research examining the issue. We use these
Future changes in coastal upwelling ecosystems with global warming: The case of the California Current System
A high-resolution model is used to examine the response of nutrients and plankton dynamics to future climate change in the California Current System (CCS), showing increased upwelling intensity associated with stronger alongshore winds in the coastal region, and enhanced upper-ocean stratification in both the CCS and open ocean.
How will Somali coastal upwelling evolve under future warming scenarios?
Somali upwelling system, the fifth in the world, presents some unique features compared with the other major upwelling systems: 1) it is a Western Boundary Upwelling System located near the Equator
Insight into anthropogenic forcing on coastal upwelling off south-central Chile
Coastal upwelling systems off the coasts of Peru and Chile are among the most productive marine ecosystems in the world, sustaining a significant percentage of global primary production and fishery
Poleward displacement of coastal upwelling‐favorable winds in the ocean's eastern boundary currents through the 21st century
Upwelling is critical to the biological production, acidification, and deoxygenation of the ocean's major eastern boundary current ecosystems. A leading conceptual hypothesis projects that the winds
Role of synoptic activity on projected changes in upwelling-favourable winds at the ocean’s eastern boundaries
The climate of the ocean’s eastern boundaries is strongly influenced by subtropical anticyclones, which drive a surface wind stress that promotes coastal upwelling of nutrient-rich subsurface water
The future of coastal upwelling in the Humboldt current from model projections
The Humboldt coastal upwelling system in the eastern South Pacific ocean is one of the most productive marine ecosystems in the world. A weakening of the upwelling activity could lead to severe
External forcing mechanisms controlling the North Atlantic coastal upwelling regime during the mid-Holocene
Nearshore upwelling along the eastern North Atlantic margin regulates regional marine ecosystem productivity and thus impacts blue economies. While most global circulation models show an increase


Climate change and wind intensification in coastal upwelling ecosystems
Overall, reported changes in coastal winds, although subtle and spatially variable, support Bakun’s hypothesis of upwelling intensification in eastern boundary current systems.
Delayed upwelling alters nearshore coastal ocean ecosystems in the northern California current
It is shown how a 1-month delay in the 2005 spring transition to upwelling-favorable wind stress in the northern California Current Large Marine Ecosystem resulted in numerous anomalies: warm water, low nutrient levels, low primary productivity, and an unprecedented low recruitment of rocky intertidal organisms.
Global Climate Change and Intensification of Coastal Ocean Upwelling
  • A. Bakun
  • Environmental Science, Geography
  • 1990
Evidence from several different regions suggests that the major coastal up welling systems of the world have been growing in upwelling intensity as greenhouse gases have accumulated in the earth's atmosphere, and the cool foggy summer conditions that typify the coastlands of northern California and other similar upwelled regions might become even more pronounced.
Delayed coastal upwelling along the U.S. West Coast in 2005: A historical perspective
The timing of the onset of coastal upwelling in spring and its intensity over the upwelling season are critical factors in the productivity and structure of the California Current ecosystem (CCE). We
Phenology of coastal upwelling in the California Current
Changes in the amplitude and phasing of seasonal events (phenology) can affect the functioning of marine ecosystems. Phenology plays a particularly critical role in eastern boundary ecosystems, which
Influence of ocean winds on the pelagic ecosystem in upwelling regions
It is shown that the level of wind-stress curl has increased and that production of Pacific sardine varies with wind- stress curl over the past six decades, and future changes in the magnitude and spatial gradient of wind stress may have important and differing effects on these ecosystems.
Climate‐driven trends and ecological implications of event‐scale upwelling in the California Current System
Eastern boundary current systems are among the most productive and lucrative ecosystems on Earth because they benefit from upwelling currents. Upwelling currents subsidize the base of the coastal
Coastal cooling and increased productivity in the main upwelling zone off Peru since the mid‐twentieth century
We reconstructed a high‐resolution, alkenone‐based sea surface temperature (SST) record spanning the last ca. 150 years, from a sediment core retrieved within the main upwelling zone off Peru. A
Observations of increased wind‐driven coastal upwelling off central California
[1] Alongshore wind speed and sea surface temperature (SST) from coastal National Data Buoy Center buoys are used to study the variability of wind-driven coastal upwelling from 1982 to 2008. A
Future climate change and upwelling in the California Current
Observations show that wind‐driven upwelling along the California coast has increased over the past 30 years. Some have postulated that the increase in wind‐driven upwelling is due largely to