Changes in coastal upwelling strength have been widely studied since 1990 when Bakun proposed that global warming can induce the intensification of upwelling in coastal areas. Whether present wind trends support this hypothesis remains controversial, as results of previous studies seem to depend on the study area, the length of the time series, the season, and even the database used. In this st...

Global increases in temperature are altering land-sea gradients. Bakun (1990) hypothesized that changes within these gradients will directly affect atmospheric pressure cells associated with the development of winds and consequently impact upwelling patterns ecologically important Eastern Boundary Upwelling Systems (EBUS). In this study we used daily time series NOAA Optimally Interpolated sea ...

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 and 2) upwelling affects the moisture responsible for monsoon rainfall. The intensity of Somali coastal upwelling during summer was projected for the twenty first century by means of an ensemble of G...

We use time-series analyses to characterize the effects of recent climate variability upon the local physical conditions at 11 study sites along the northern-central coast of Chile (29-34°S). Environmental indices show that the 1° Bakun upwelling index in this coastal region has fluctuated in time, starting from a stable period around the 1980's, peaking during the mid 90s, decreasing during th...

Construction of cascade dams has been shown to have impacts on fish assemblages and biodiversity. Yet, there is no literature in the Murum River that connects cascading Bakun Sarawak, Malaysia. Hence, study this modified ecosystem necessitated better understand effects dam construction fauna. For this, samples were caught at five stations located along river during both dry wet seasons. Environ...

The Sonora, Mexico, earthquake of 3 May 1887 occurred a few years before the start of the instrumental era in seismology. We revisit all available accounts of the earthquake and assign Modified Mercalli Intensities (MMI), interpreting and analyzing macroseismic information using the best available modern methods. We find that earlier intensity assignments for this important earthquake were unju...

Wind-driven upwelling variability and local topography cause an upwelling shadow in the northern region of Monterey Bay, California, to persist seasonally. The present study applied partial least squares regression to a 7-yr time series collected within this retentive feature for the purpose of evaluating the environmental controls on total autotrophic phytoplankton (as chlorophyll a) and picop...

In common with most of Borneo, the Bakun region of Sarawak is currently subject to heavy deforestation mainly due to logging and, to a lesser extent, traditional slash-and-burn farming practices. This has the potential to affect stream ecosystems, which are integrators of environmental change in the surrounding terrestrial landscape. This study evaluated the effects of both types of deforestati...

This paper presents the evaluation of soil flexibility at vicinity Bakun HEP Dam, largest in East Malaysia. The dam is located Belaga District Sarawak, approximately 50 km from active Tubau and Bukit Mersing fault lines. area experienced earthquakes magnitudes ranging between 3.5 5.4 during period 1994 2010. study used global local earthquake records to evaluate site specific seismic hazard usi...