Daily Archives: August 8, 2012

Hot Today

Source: NOAA

Aug 08, 2012
Extreme Heat Grips Southwestern U.S.
The Southwestern U.S. is no stranger to heat, but this week has been and will continue to be especially intense for parts of southern California and western New Mexico.  Temperatures have broken the 100 degree mark throughout much of the region, and have sent heat indexes even higher. Using NOAA’s high resolution Real-Time Mesoscale Analysis Model, the maximum temperatures for August 1-7, 2012 are shown.  The dark orange colors in the image brings attention to the current high temperatures in California and also the extreme heat that gripped Oklahoma earlier in the month, causing the on-going record droughts for that region.

Southern California Summer Sea Surface Temperatures are declining

Summer Sea Surface Temperatures (SST) off the U.S. West Coast has been declining since the 1980s. The cooling trend is more significant in Central and Southers California.

Seo, H., Brink, K., Dorman, C., Koracin, D., Edwards, C. What determines the spatial pattern in summer upwelling trends on the US West Coast? JOURNAL OF GEOPHYSICAL RESEARCH, VOL. 117, C08012, 11 PP., 2012 doi:10.1029/2012JC008016

Analysis of sea surface temperature (SST) from coastal buoys suggests that the summertime over-shelf water temperature off the U.S. West Coast has been declining during the past 30 years at an average rate of −0.19°C decade−1. This cooling trend manifests itself more strongly off south-central California than off Oregon and northern California. The variability and trend in the upwelling north of off San Francisco are positively correlated with those of the equatorward wind, indicating a role of offshore Ekman transport in the north. In contrast, Ekman pumping associated with wind stress curls better explains the stronger and statistically more significant cooling trend in the south. While the coast-wide variability and trend in SST are strongly correlated with those of large-scale modes of climate variability, they in general fail to explain the southward intensification of the trend in SST and wind stress curl. This result suggests that the local wind stress curl, often topographically forced, may have played a role in the upwelling trend pattern.

Click here for full paper (fee)….



Canandaigua (NY) may bottle lake water…

“Would you buy bottled water from Canandaigua Lake instead of Poland Springs? Canandaigua City officials are considering bottling lake water and selling it to the public.” Click here for news article….