Sentences with phrase «precipitation records from»

In general, glaciers retreat due to a combination of rising temperatures and declining precipitation, but the temperature and precipitation records from the Alps indicated that glaciers should have continued advancing until around 1910.

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.

That was because they already had temperature and precipitation records from Barrow dating back five decades.

Precipitation records from modern rain gauges were used for 1908â $ «96 together with the traditional Korean rain gauge precipitations for 1777â $ «1907.

Using long - term temperature and precipitation records from 1870 to 2002, Aiguo Dai of the National Center for Atmospheric Research and colleagues calculated the Palmer index for locations around the world in which it is not routinely used.

Not exact matches

To calculate the correlation during the Little Ice Age, researchers compared the core data with proxies for precipitation data, such as data from tree rings, cave formations and other natural records.

Stalagmites and stalactites — the stony projections that grow from the cave floor and ceiling, respectively — carry a record of precipitation because they grow as a result of dripping water.

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.

Trenberth points to disconcerting discrepancies and spurious variations in records, including those of precipitation and solar radiation, derived from different satellite sensors.

To do so, Ichoku and his colleagues used satellite records from 2001 to 2014 — including data from NASA's Moderate Resolution Imaging Spectroradiometer and the Tropical Rainfall Measurement Mission — to analyze the impact of fires on various water cycle indicators, namely soil moisture, precipitation, evapotranspiration and vegetation greenness.

The records showed that precipitation and temperature patterns had hardly fluctuated during the period, meaning that the amount of water flowing into the lake from nearby streams is likely the same today as it was in 1847.

That number has declined from the eight western states that were record warm through October, thanks to that stormy pattern that brought in cooler temperatures and precipitation.

Precipitation was observed in Portland each day from December 1 - 25, the second longest streak on record.

«The proxy records used in this study appear to contradict other studies that have used direct observations of precipitation from rain gauges... All else being equal, I would trust direct rainfall measurements over proxy records.»

Triple water.isotopologue record from WAIS Divide, Antarctica: controls on glacial - interglacial changes in 17Oexcess of precipitation.

The paper created a Holocene - length record of extreme precipitation, as derived from lakebed sediments across the Northeast.

800 - yr - long records of annual air temperature and precipitation over southern Siberia inferred from Teletskoye Lake sediments Kalugin, I., Daryin, A., Smolyaninova, L., Andreev, A., Diekmann, B. and Khlystov, O. 2007; Quaternary Research 67: 400 - 410

Then, in late 2010, a strong La Niña brought relief from the drought and record - breaking precipitation.

Weather records from 11 individual weather station were also correlated with annual balance, but each yielded lower correlation coefficients than the Cascade Mountain Division record, probably due to the significant local changes in precipitation for many storm events.

As I explained above — major dams are designed by a different method of estimating probable maximum precipitation from recorded high intensity storm precipitation transformed by local and regional factors including moisture availability.

Time series of January - November precipitation anomalies in California from the historical record.

To test the accuracy of these modeled data, we compared values from the Verde ponderosa pine PRISM modeled data to measurements of total winter precipitation recorded during the original Beaver Creek experiments [31].

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.

In that case, a similar slow - moving low pressure system brought moisture from the Gulf of Mexico against the front ranges of the northern Rocky Mountains leading to record breaking precipitation totals and flooding.

Nor have you produced or cited a single study which shows from world temperature and precipitation records that water vapour could warm the surface.

temperature could have exacerbated the 2014 drought by approximately 36 %... These observations from the paleoclimate record suggest that high temperatures have combined with the low but not yet exceptional precipitation deficits to create the worst short - term drought of the last millennium for the state of California... Future severe droughts are expected to be in part driven by anthropogenic influences and temperatures outside the range of the last millennium.

Global solar irradiance reconstruction [48 — 50] and ice - core based sulfate (SO4) influx in the Northern Hemisphere [51] from volcanic activity (a); mean annual temperature (MAT) reconstructions for the Northern Hemisphere [52], North America [29], and the American Southwest * expressed as anomalies based on 1961 — 1990 temperature averages (b); changes in ENSO - related variability based on El Junco diatom record [41], oxygen isotopes records from Palmyra [42], and the unified ENSO proxy [UEP; 23](c); changes in PDSI variability for the American Southwest (d), and changes in winter precipitation variability as simulated by CESM model ensembles 2 to 5 [43].

219 The temperature and precipitation records are replotted from the data of K. M. Cuffey and G. D. Clow, «Temperature, accumulation, and ice sheet elevation in Central Greenland through the last deglacial transition,» Journal of Geophysical Research 102 (C12): 26383 - 96 (1997).

The DHM data set includes daily flow data for 44 river gauging stations for the period 1964 - 2000, 258 daily precipitation records covering 1956 - 1996, 119 daily and monthly temperature records spanning the period 1934 - 1996, 114 records of average monthly humidity from 1967 - 1997, and 41 records with average monthly values of sunshine hours between 1967 - 1997...

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.

* This northward deflection of the storm track prevented precipitation - bearing low pressure systems from reaching California for large portions of two consecutive rainy seasons, ultimately resulting in the lowest 12 - month precipitation on record in California.

While derived from sea surface temperature data, the PDO index is well correlated with many records of North Pacific and Pacific Northwest climate and ecology, including sea level pressure, winter land — surface temperature and precipitation, and stream flow.

«The current record - breaking drought has arisen from both extremely low precipitation and extremely warm temperature,» Professor Diffenbaugh says.

We are beginning to sound like a broken record here, but again, it is impossible to present reliable future projections for precipitations changes across the U.S. (seasonal or annual) from a collection of climate models which largely can not even get the sign (much less the magnitude) of the observed changes correct.

«This study was possible because of the tremendous harvest records and multicentury - long records of temperature, precipitation, and soil moisture reconstructed from historical documents and tree rings,» Cook said.

Taken together, the observed record from California suggests that (i) precipitation deficits are more likely to yield 1 - SD PMDI droughts if they occur when conditions are warm and (ii) the occurrence of 1 - SD PMDI droughts, the probability of precipitation deficits producing 1 - SD PMDI droughts, and the probability of precipitation deficits co-occurring with warm conditions have all been greater in the past two decades than in the preceding century.

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.

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

The basic thesis presented by No Tricks Zone is that these graphs, which are inferred records of things like temperature and precipitation from specific localities through time, show that the climatological changes happening right now are neither dramatic nor man made...