Taxonomy term

drought

Geomedia: On the web: Personalizing drought data with digital tools

With drought, people feel the heat while it’s happening, but understanding how current droughts fit into past trends — and what they mean for the future — is harder to grasp. Several online tools are available to help the public and decision-makers make sense of drought data. Viewers can see current and historical droughts superimposed on maps, focusing in on specific locations or broadening the view to larger regional, national or global droughts. 
28 May 2015

California drying out

Offering another perspective on the ongoing drought in the western U.S., NASA recently released this three-panel image illustrating relative water loss from California’s Central Valley between 2002 and 2014 based on data from the Gravity Recovery and Climate Experiment (GRACE) satellites (hot colors indicate greater loss).

03 Feb 2015

California: A profusion of drought restrictions with varying results

With 100 percent of California experiencing moderate to exceptional drought conditions last year, according to the U.S. Drought Monitor, Gov. Jerry Brown mandated the tracking of monthly personal water usage for the first time. In addition, water districts around the state also took up varying degrees of drought restrictions, including such strategies as raising water prices and severely limiting outdoor irrigation. But whether these restrictions will make a dent in California’s water shortage amid the ongoing and historic drought remains to be seen.

25 Jan 2015

Colorado River Basin sees severe groundwater depletion

Over the past 14 years, the Colorado River Basin has experienced its worst drought since precipitation records have been kept, starting in the 1960s. The basin supplies water used for agriculture and in households in seven states, affecting more than 40 million people. In a study recently published in Geophysical Research Letters, researchers have found that the reservoirs that store water in the basin are at record low levels. What’s more, the research shows that in addition to shrinking reservoirs, groundwater is being depleted much faster than previously thought, which could have major implications for the region’s future water security.

24 Sep 2014

On the Web: Personalizing drought data with digital tools

One of the hardest parts of hazard mitigation is communicating risk to the public. With drought, people feel the heat while it’s happening but understanding how the current drought fits into past trends — and their implications for the future — is harder to grasp. Now, several online tools are available to help the public and decision-makers look at drought data.

04 Sep 2014

Geomedia: California's climatic catastrophes detailed in "The West Without Water"

The 2013-2014 California drought has impacted everything from wildfires to food prices across the country. Politicians and the media called this the worst drought in California history, but scientists know that intense multiyear droughts are a regular feature of California’s climate. Fortunately, B. Lynn Ingram and Frances Malamud-Roam have put drought into context for everyone in their new history of California’s droughts and floods, “The West Without Water.”
 

12 May 2014

Humans are influencing some extreme weather events, but not all

In 2012, the world experienced dozens of extreme weather events, including droughts, heat waves, cold spells, extreme rainfalls, big storms like Superstorm Sandy, and a record-low Arctic sea-ice extent. Teasing apart the factors that create extreme weather is a challenge for scientists, especially when it comes to determining whether human-induced climate change plays a role. Recently, 18 different research teams — comprising 80 scientists — took on that challenge.

16 Jan 2014

Widely used index may have overestimated drought

The severity and frequency of drought are expected to increase worldwide as climate change leads to a warmer atmosphere and regional changes in precipitation, and some research has shown that drought is already increasing. But a new study concludes that the increase in drought claimed by previous studies has been overestimated and that there has actually been little increase over the last 60 years.

07 Apr 2013

Benchmarks: November 29, 1991: The Interstate 5 dust storm injures hundreds

It was about 2:30 p.m. on the day after Thanksgiving and traffic was heavy on Interstate 5, which connects Northern and Southern California. A 31-year-old substitute teacher was traveling southbound on I-5 with her husband, 32, and their two sons, ages 4 and 1. They were a little north of Coalinga, a farming town in the San Joaquin Valley about 250 kilometers south of San Francisco. 
 
01 Nov 2012

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