Deke Arndt, Chief of the Climate Monitoring Branch, National Climatic Data Center

 

In a place routinely afflicted by drought, water managers in Tampa Bay use climate forecasts to ensure a water supply to people’s taps without sucking the region’s rivers, wetlands, and groundwater dry. The limits of their innovation might be tested in a future which could pose even more challenges to ensuring the oasis remains green.

 

La Niña—the cool phase of the El Niño-Southern Oscillation—dominated the Pacific Ocean at the start of 2011, subsided in summer, and returned in fall.

The lead character in the 2011 climate story was La Niña—the cool phase of the El Ni

In 2011, global sea levels fell below the long-term trend of sea level rise, but as La Niña waned late in the year, global ocean levels began rising rapidly.

In early 2011, stratospheric temperatures rose over the tropics due to La Nina while temperatures over the poles fell below the long-term average.

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