Sentences with phrase «year precipitation record»

Sediment core samples drawn from Lake Titicaca, South America's largest freshwater lake, have revealed a 25,000 - year precipitation record that may rewrite the books on ancient climate.

Not exact matches

The board issued a statement late last week saying that months of precipitation produced the highest recorded water levels on Lake Ontario since records were kept over the last 100 years.

For the last 20 years, the Mercury Deposition Network has recorded mercury content of precipitation across the United States.

Boersma and Rebstock looked at the cause of every recorded chick mortality in an Argentinian colony of Magellanic penguins, over a nearly 30 - year period, and compared these with changes in temperature and precipitation over the same time.

The flooding continued the heavy precipitation trend of 2010, which was the wettest year on record.

The team studied the records of temperature, cool - season precipitation and stream flow for the years 1906 to 2012.

Of course, there aren't any direct records of precipitation levels thousands of years ago.

To test that notion, Wurtsbaugh and his colleagues recreated the climate around the Great Salt Lake for 170 years, based on historical precipitation, stream level records, and tree ring data.

December rounded out the year with a precipitation total of 1.65 inches, 1.42 inch below average, the fourth driest such month on record.

The coverage of extreme precipitation totals and warm temperatures contributed to the fourth highest U.S. Climate Extremes Index in the 106 - year record for the CONUS.

Over the 121 - year period of record, precipitation across the CONUS has increased at an average rate of 0.16 inch per decade.

Although long - term (60 + months) precipitation deficits persisted in some locations, some reservoirs returned to above - average levels after being record and near - record low for the past several years.

By the end of the year, that pattern had flipped, with record and near - record temperatures across most of the East and near - to below - average temperatures for much of the West, associated with much needed above average precipitation across the region.

The wettest year on record for Alaska occurred in 1928 with 43.54 inches of precipitation.

Moreover, in monsooon regions proxy records tend to be highly seasonally biased (e.g. in South America they record precipitation only a couple months and the rest of the year is not retained).

This year, record snowfalls in the East left some areas of the country with too much precipitation, while other areas had too little, due to extreme drought in the West.

It was also a very dry year: «The average precipitation total for the contiguous U.S. for 2012 was 26.57 inches, 2.57 inches below average, making it the 15th driest year on record for the nation.

The average precipitation total for the contiguous U.S. for 2012 was 26.57 inches, 2.57 inches below average, making it the 15th driest year on record for the nation.

Moreover, in monsooon regions proxy records tend to be highly seasonally biased (e.g. in South America they record precipitation only a couple months and the rest of the year is not retained).

Several states, including Montana, Washington, Oregon, and Florida all experienced their warmest years since 1895, the year in which record - keeping for temperature and precipitation began.

In California, San Francisco recorded no January precipitation for the first time in its long 167 - year record; normal is 4.5 in (114 mm).

The deuterium excess, a proxy of Greenland precipitation moisture source, switches mode within 1 - 3 years over these transitions and initiates a more gradual change (50 years) of the Greenland air temperature as recorded by water stable isotopes.

After six years of «perpetual» drought, California is now deluged with the highest precipitation for January and February on human record (Sacbee2017b).

While this week's expected precipitation is much - needed and notable given the recent extreme dryness, we're probably still on track for the driest year on record.

In fact, calendar year 2013 now appears to be the driest on record to date — specifically, California has received less precipitation during the period January 1, 2013 — November 13, 2013 than during any other January 1 — November 13 period in at least the past 119 years.

You can have one year with almost no precipitation, then next year have a record year,» said Dan McEvoy, an assistant research professor at the Climate Research Institute.

This year California broke records, as it saw incredible rates of precipitation — so far in 2017, the state has gotten an average 22.45 inches of precipitation, 9.5 inches above the 20th century average.

«Even though California historically has periods of dry and wet years, there isn't an analog for climate extremes like the ones we've observed in recent years, such as those record - breaking prolonged periods of drought following by periods of intense precipitation pulses that cause flooding,» Woodburn said.

Precipitation and streamflow measurements indicate that the event was a 1 in 50 year to 1 in 100 year event in many locations in south - east British Columbia, and numerous streamflow records were broken.

The first kind of precipitation whiplash is from year to year, meaning that we'll see more extraordinarily dry years followed by incredibly wet years — in the way California's five - year drought ended in 2017 in one of the wettest winters on record.

The researchers looked at historical temperature and precipitation records to find out whether drought conditions were more likely to hit during warm or cold years in the past.

Following the two wettest years on record (2010 and 2011), 2012 saw near average precipitation on balance across the globe.

Tree - ring records of precipitation anomalies and of temperature allowed them to reconstruct a 500 - year history of snow water equivalent in the Sierra Nevada.

Abrupt changes in precipitation and temperature resolved in a record spanning the past 60,000 years from Lake Tanganyika, East Africa, are coeval with Northern Hemisphere climate events.

The scientists recreated the history of drought by analyzing tree ring records showing the annual precipitation history from the past years back to the 1100's.

A smooth 12 - month average of California precipitation shows that the current drought ecompasses the driest year on record in California.

If California receives at least average precipitation for the rest of the season, 2016 - 2017 will become the state's wettest Water Year on record.

Sea levels are rising (ask the Mayor of Miami who has spent tax monies to raise road levels), we've had 15 of the hottest years eve measured, more precipitation is coming down in heavy doses (think Houston), we're seeing more floods and drought than ever before (consistent with predictions), the oceans are measuring warmer, lake ice in North America is thawing sooner (where it happens in northern states and Canada), most glaciers are shrinking, early spring snowpacks out west have declined since the 1950's, growing seasons are longer throughout the plains, bird wintering ranges have moved north, leaf and bloom dates recorded by Thoreau in Walden have shifted in that area, insect populations that used to have one egg - larva - adult cycle in the summer now have two, the list goes on and on.

The event encompasses the lowest calendar - year and 12 - mo precipitation on record (8), and almost every month between December 2011 and September 2014 exhibited multiple indicators of drought (Fig.

2012 was also the 15th driest year on record, with an average of 26.57 inches of precipitation across the country.

And when the last three water years are evaluated (October 1, 2011 to September 30, 2014), we see that the current drought (measured only by precipitation levels) is by far the most severe in the entire instrumental record (Figure 3).

Using daily station - based precipitation records from the United States Historical Climatological Network for the years 1979 - 2008, it is found that there are two distinct sub-regions.

Those who like to check under the hood and kick the tires will find a tiny increase in precipitation over the 240 - year record, with an interesting smoothing of precipitation through the year - that is, there's been a little more rain in the drier December through May half and a little less in the soggier June through November half of the year.

Here is an excerpt of the research paper, «When It Rains It Pours», from Environment America, showing a statistically significant spike in flash flooding and other extreme precipitation events since 1948: «Weather records show that storms with extreme precipitation have become more frequent over the last 60 years.

The findings suggest that California could be entering an era when nearly every year that has low precipitation also has temperatures similar to or higher than 2013 - 14, when the statewide average annual temperature was the warmest on record.

Among the other rainfall records set this month: least year - to - date precipitation (6.53 inches; historical average 16.03 inches; previous record 9.36 inches in 1917); driest consecutive 8, 9 and 10 months on record (7.25 inches 8.35 inches, and 9.17 inches respectively); and driest 12 months ending in July (15.16 inches, previous record 16.46 inches in 1925).

The loss was significantly influenced by record - setting temperatures, unlike a similar 15 - year drought in the 1950s which was driven by a lack of precipitation.

1985 Lonnie G. Thompson, et al., «A 1500 - Year Record of Tropical Precipitation in Ice Cores from the Quelccaya Ice Cap, Peru.»