Sentences with phrase «drought severity»

The researchers found that most areas that saw increases in fire activity also experienced increases in drought severity during the same time period.

With increases in temperatures, drought severity likely will worsen, «implying that our results should be viewed as conservative,» the study reports.

A 35 - minute presentation including explanation of the main definitions of drought, measuring drought severity, indicators and monitoring, impacts and prediction.

The study found a similar response in trees across the world, where death increases consistently with increases in drought severity.

Sliding correlations between the Central Valley Palmer drought severity index (PDSI) and the groundwater level (GW) in the following year (1 - yr lag; solid line) and in the same year (no lag; dashed line), computed with a 15 - year running window (one - sided).

To study changes in soil moisture, the researchers used the Palmer drought severity index to examine average water availability and loss over the study period.

Partial and potentially substantial alleviation of drought severity in California is likely, though even the wettest winter on record would be insufficient to erase California's multi-year water deficits.

``... we found heterogeneous patterns of drought severity changes that were inherent to the nonuniformly distributed impacts of climate change on dryness.

In the Southwest and Central Plains of Western North America, climate change is expected to increase drought severity in the coming decades.

Satellite imagery, analyzed across multiple spectral bands, in conjunction with ground - based data, was used to assess drought severity.

Shows that over the next 30 years, increased drought severity from climate change could triple West Nile virus cases, but only in regions with low human immunity

Nationally, no long - term trends are evident for drought severity.

The maps above show drought severity in seven key states as of November 16, 2014.

In fact, primary metrics of overall drought severity — including the widely - used Palmer Drought Severity Index (PDSI)-- have now reached their lowest levels since at least the 1800s.

«Those losses are concentrated in certain parts of the Central Valley,» says Josué Medellín - Azuara, an associate research engineer at the Center for Watershed Sciences, underscoring that unemployment and drought severity go hand in hand.

Given the known influence of temperature on drought, the fact that the 2012 — 2014 record drought severity has co-occurred with record statewide warmth (7) raises the question of whether long - term warming has altered the probability that precipitation deficits yield extreme drought in California.

Swann, A. L. S., Hoffman, F. M., Koven, C. D. & Randerson, J. T. Plant responses to increasing CO2 reduce estimates of climate impacts on drought severity.

To study changes in soil moisture, the researchers used the Palmer drought severity index to examine average water availability and loss over the study period.

The sensitivity of the Palmer drought severity index and Palmer's Z - index to their calibration coefficients including potential evapotranspiration

An example is Australia, which exhibits evidence of increased drought severity, consistent with the observed warming during the latter half of the 20th century (Nicholls, 2004).

No formal attribution studies for changes in drought severity in North America have been attempted.

During times of drought, the feedbacks of higher temperature extremes and dry conditions are likely to amplify both temperature extremes and drought severity in the United States.

These results illustrate how changes in drought severity can alter the transmission dynamics of vector - borne diseases

The scientists analyzed a drought severity index and two soil moisture data sets from 17 climate models that were run for both emissions scenarios.

W.C. Palmer produced a drought severity index in 1965, but it only relates to meteorological droughts.

In addition to causing more downpours, these enhanced evaporation rates are also leading to an increase in drought severity in places that are already dry, like California.