Sentences with phrase «precipitation years during»

For example, of the 63 negative precipitation years during 1896 — 2014, 15 of the 32 warm — dry years (47 %) produced 1 - SD drought, compared with only 5 of the 31 cool — dry years (16 %)(Fig. 2A).

Not exact matches

Following three consecutive years of rainy weather during Mass Audubon's annual Bird - a-thon, this year's event on May 15 - 16 was precipitation free and generally sunny and pleasant.

During the last 30 years, researchers have noted an apparent drop in precipitation behind exhaust - belching ocean vessels and downwind from burning agricultural fields.

«We expect the first heavy precipitation events with a clear global warming signal will appear during winters in Russia, Canada and northern Europe over the next 10 - 30 years,» said co-author Dr Ed Hawkins from the National Centre for Atmospheric Science at the University of Reading, UK.

Under the model they developed, the scientists say the likelihood of Bd occurrence is predicted to decrease during warmer periods, and when precipitation exceeds an annual rainfall threshold above 1,800 mm per year.

The severe decline in precipitation in the African Sahel during the past 30 years seems to be related to both anthropogenic warming and aerosol pollutants.

The study found cooler sea temperatures, greater precipitation and stronger upwelling — all indicators of La Niña - like conditions at the study site in Panama — during a period when coral reef accretion stopped in this region around 4,100 years ago.

The predictions matched actual rainfall measurements during the 75 - year period, both in the magnitude (amount) and the trend (increase or decrease) of precipitation.

Future modeling may explain some of the study's seemingly paradoxical findings, including the fact that, even as fires decreased by 2 to 7 percent each year from 2006 to 2013, precipitation during those years did not increase proportionately.

During May 5th — 31st, the Huanan region in the northeast received rainfall 150 percent of its average precipitation, the most in nearly 40 years.

NASA and United States scientists will join those from Norway, Japan, Canada and other countries during the next two years to investigate the physics of heating and charged particle precipitation in this region called the geomagnetic cusp — one...

In locations that are accustomed to getting snow during the winter, the total amount of snow each year is already decreasing as the planet warms from increasing greenhouse gases; the percentage of precipitation falling as snow is on the decline, with more of it falling as rain.

A team of researchers has now explored precipitation changes off the coast of western Indonesia during the last 24,000 years with the aim to better understand patterns and dynamics of local precipitation.

With some form of precipitation occurring on so many days throughout the year, there is a very good chance you'll get some wet weather during your holiday in February, so be prepared.

Precipitation is very unlikely across the Canary Islands at this time of year, but if you are unlucky enough to get some rainfall during your holiday, it will most probably be drizzle or moderate rain.

The likelihood of precipitation occurring on the island during this time of year drops as the month develops, starting off at 30 % on January 1st and falling down to 27 % by January 30th.

There is also plenty of rain during this time of year as the region gets an average of 70 mm both liquid and frozen precipitation.

For example, [Kruss 1983] has this to say about the Lewis glacier on Mt. Kenya: «A decrease in the annual precipitation on the order of 150 mm in the last quarter of the 19th century, followed by a secular air temperature rise of a few tenths of a degree centigrade during the first half of the 20th century, together with associated albedo and cloudiness variation, constitute the most likely cause of the Lewis Glacier wastage during the last 100 years.»

Also, I'd like to see someone try to explain the extreme precipitation deficit which occurred during the Dust Bowl years in the Midwest and West.

On average in the United States, the amount of rain falling during the heaviest 1 percent of rainstorms has increased nearly 20 percent during the past 50 years — almost three times the rate of increase in total precipitation.4, 5 The Midwest saw an even larger average increase of 31 percent, surpassed only by the Northeast (at 67 percent).4 Scientists attribute the rise in heavy precipitation to climate change that has already occurred over the past half - century.6

2) Soil moisture: memory in soil moisture can last several weeks which can influence the atmosphere through changes in evaporation and surface energy budget and can affect the forecast of air temperature and precipitation in certain areas during certain times of the year on intraseasonal time scales;

For the entire Northern Hemisphere, there is evidence of an increase in both storm frequency and intensity during the cold season since 1950,1 with storm tracks having shifted slightly towards the poles.2, 3 Extremely heavy snowstorms increased in number during the last century in northern and eastern parts of the United States, but have been less frequent since 2000.11,15 Total seasonal snowfall has generally decreased in southern and some western areas, 16 increased in the northern Great Plains and Great Lakes region, 16,17 and not changed in other areas, such as the Sierra Nevada, although snow is melting earlier in the year and more precipitation is falling as rain versus snow.18 Very snowy winters have generally been decreasing in frequency in most regions over the last 10 to 20 years, although the Northeast has been seeing a normal number of such winters.19 Heavier - than - normal snowfalls recently observed in the Midwest and Northeast U.S. in some years, with little snow in other years, are consistent with indications of increased blocking (a large scale pressure pattern with little or no movement) of the wintertime circulation of the Northern Hemisphere.5 However, conclusions about trends in blocking have been found to depend on the method of analysis, 6 so the assessment and attribution of trends in blocking remains an active research area.

Precipitation occurs about once every seven days in the western part of the region and once every three days in the southeastern part.77 The 10 rainiest days can contribute as much as 40 % of total precipitation in a given year.77 Generally, annual precipitation increased during the past century (by up to 20 % in some locations), with much of the increase driven by intensification of the heaviest rainfalls.77, 78,79 This tendency towards more intense precipitation events is projected to continue in Precipitation occurs about once every seven days in the western part of the region and once every three days in the southeastern part.77 The 10 rainiest days can contribute as much as 40 % of total precipitation in a given year.77 Generally, annual precipitation increased during the past century (by up to 20 % in some locations), with much of the increase driven by intensification of the heaviest rainfalls.77, 78,79 This tendency towards more intense precipitation events is projected to continue in precipitation in a given year.77 Generally, annual precipitation increased during the past century (by up to 20 % in some locations), with much of the increase driven by intensification of the heaviest rainfalls.77, 78,79 This tendency towards more intense precipitation events is projected to continue in precipitation increased during the past century (by up to 20 % in some locations), with much of the increase driven by intensification of the heaviest rainfalls.77, 78,79 This tendency towards more intense precipitation events is projected to continue in precipitation events is projected to continue in the future.80

Improved observational data suggest during more frequent La Nina years a greater proportion of precipitation falls on the land globally and when routed through more slowly discharging aquifers, sea level rise decelerates.

So imagine everyone's surprise when the state, which was in a drought for the last five years, saw weeks of precipitation and even some flooding during the winter months.

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.

The lake typically rises a bit during winter; this year it rose an impressive 1.2 feet prior to April, largely due to precipitation on the lake and lower - elevation rainfall... [/ blockquote]

It is worth noting that the PDO is currently in a negative phase, which historically favors reduced precipitation across much of California during ENSO - neutral years.

The 2012 - 2013 water year was especially remarkable because it began rather early with a series of very intense and moist storms associated with «atmospheric rivers» in Northern California during November but then quickly tapered off, with only light and sporadic precipitation falling for the remainder of the typical «rainy» season from mid-December through May.

For example, in Siberia for the summer season during the years 1936 to 1994 there was a statistically significant decrease in total precipitation of 1.3 % / decade, but the number of days with precipitation also decreased.

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.

In ponderosa pine ecosystems, soil texture is an important factor in forest water stress during lower precipitation years and post-disturbance regeneration (Scianna [2011]-RRB-.

a Ensemble - mean of scaled - interannual regressions of winter SLP (contours) and SAT (color shading) anomalies upon the normalized leading PC of winter SLP anomalies during 1920 — 2012; b SLP and SAT trend regressions upon the normalized leading PC of winter SLP 30 - year trends based on 2016 — 2045; c as in (a) but for precipitation in place of SAT; d as in (b) but for precipitation in place of SAT.

It is instructive to compare these numbers with those characteristic of a set of the years during 1979 — 2012 with no or only one major regional extreme event (in terms of land surface temperature and land precipitation anomalies) in the NH midlatitudes, from late April / early May to late September / early October, as reported yearly since 1993 in the World Meteorological Organization statements on the status of the global climate (see also ref.

Singh and her Lamont colleagues research climate change impacts on weather patterns by analyzing weather trends in daily temperatures, precipitation, and atmospheric patterns that have occurred during the past 40 years, in the post-satellite era.

Evaporation exceeds precipitation by about 200 cm year - 1 during the La Niña conditions of 1988 - 89, whereas precipitation exceeds evaporation by about 200 cm year - 1 during the El Niño of 1991 - 92.»

I think you have an inability to read, let me highlight the relevant parts for you: Evaporation exceeds precipitation by about 200 cm year - 1 during the La Niña conditions of 1988 - 89, whereas precipitation exceeds evaporation by about 200 cm year - 1 during the El Niño of 1991 - 92.

Breitenmoser et al. (2012) analyzed the ~ 200 - year periodicity during the past two millennia using seventeen near worldwide distributed tree chronologies, and found significant periodicities in the 208 - year frequency band, corresponding to the DeVries cycle of solar activity, indicating a solar contribution in the temperature and precipitation series.

This detectable increase in extremely low - precipitation years adds to the effect of rising temperatures and contributes to the increasing occurrence of extremely warm — dry 12 - mo periods during the 21st century.

During 1995 — 2014, 6 of the 8 moderately dry years produced 1 - SD drought (Fig. 1A), with all 6 occurring in years in which the precipitation anomaly exceeded — 0.5 SD and the temperature anomaly exceeded 0.5 SD (Fig. 1C).

Although these hydrological changes could potentially increase soil water availability in previously snow - covered regions during the cool low - ET season (34), this effect would likely be outweighed by the influence of warming temperatures (and decreased runoff) during the warm high - ET season (36, 38), as well as by the increasing occurrence of consecutive years with low precipitation and high temperature (Fig. 4A).

Most 1 - SD drought years have occurred when conditions were both dry (precipitation anomaly < 0) and warm (temperature anomaly > 0), including 15 of 20 1 - SD drought years during 1896 — 2014 (Fig. 2A and Fig.

For example, during 1896 — 2014, 1 - SD drought occurred in 15 of the 28 years (54 %) that exhibited both a — 0.5 SD precipitation anomaly and a positive temperature anomaly, but in only 5 of the 20 years (25 %) that exhibited a — 0.5 SD precipitation anomaly and a negative temperature anomaly (Fig. 2A).

... «reasonable to conclude that some caution is warranted about claiming that large changes to global precipitation have occurred during the last 150 years.»

This is different in Andhra Pradesh state rainfall that receives rainfall during the southwest and northeast monsoons and cyclonic activity presented 132 year cycle in annual precipitation.

More generally, regional variations of temperature and precipitation modify the fluxes from year to year, for instance during El Niño events.

We further find that years with extreme geopotential heights in the climate models exhibit a Triple R - like regional maximum in the northeastern Pacific, and are associated with shifts in wind patterns and precipitation along the West Coast that are strongly reminiscent of those which occurred during 2013 - 2014.

Precipitation has increased during the last 25 years.

«Indeed it is estimated that annual mean temperature has increased by over 2 °C during the last 70 years and precipitation has decreased in most regions, except the western part of the country, indicating that Mongolia is among the most vulnerable nations in the world to global warming.»

During the last century, mean precipitation in all four seasons of the year has tended to decrease in all the main arid and semi-arid regions of the world, e.g., northern Chile and the Brazilian North - East, West Africa and Ethiopia, the drier parts of Southern Africa and Western China (Folland et al., 2001).