Sentences with phrase «annual area burned»

PCIC's researchers found that there are significant correlations between the monthly drought code and the annual area burned at all five locations that were tested and that the monthly drought code is a simple, but effective metric for simulating wildfire severity that requires comparatively little input data.

Because climate's influence on wildfire is so strong, we are facing an inevitable trend of increasing annual area burned, and will need to learn how to adapt to more wildfire.

Both wetland drying and the increased frequency of warm dry summers and associated thunderstorms have led to more large fires in the last ten years than in any decade since record - keeping began in the 1940s.9 In Alaskan tundra, which was too cold and wet to support extensive fires for approximately the last 5,000 years, 105 a single large fire in 2007 released as much carbon to the atmosphere as had been absorbed by the entire circumpolar Arctic tundra during the previous quarter - century.106 Even if climate warming were curtailed by reducing heat - trapping gas (also known as greenhouse gas) emissions (as in the B1 scenario), the annual area burned in Alaska is projected to double by mid-century and to triple by the end of the century, 107 thus fostering increased emissions of heat - trapping gases, higher temperatures, and increased fires.

Due to warmer and drier summer conditions, the typical annual area burned by fire in the Northwest is projected to double by the 2040s and quadruple by the 2080s.

«The 2015 season here in Alaska is day by day progressing to be a truly outstanding fire year relative to our rather brief historical record of annual area burned (1950 is as far back as I feel provides rather accurate numbers),» Scott Rupp, a fire ecologist at the University of Alaska, Fairbanks, said in an email.

«The 2015 season here in Alaska is day by day progressing to be a truly outstanding fire year relative to our rather brief historical record of annual area burned (1950 is as far back as I feel provides rather accurate numbers),»

One study we reviewed found that if temperatures rise 3.2 °F by mid-century, this could lead to 54 % increase in the annual area burned in the western U.S. 22 The same study found that the forests of the Pacific Northwest and Rocky Mountains will likely experience the greatest increases in annual burn area (78 % and 175 %, respectively).

Not exact matches

In addition, some significant biophysical impacts would be substantially reduced: the increased burned area would halve and 23,000 annual heat - related deaths would be spared.

Studies in Alaska and Canada have projected that hotter, drier summers may increase annual wildfire burn areas by two to three times by the end of the century.

Global annual burned area estimates approach 350 MHa per year2, and annual pyrogenic CO2 emissions can exceed 50 % of fossil fuel combustion emissions3, 4,5.

Giglio, L., Randerson, J. T. & van der Werf, G. R. Analysis of daily, monthly, and annual burned area using the fourth generation global fire emissions database (GFED4).

Inter-annual variations in mean US fire weather season length were significantly correlated with variation in annual burned area reported by the US National Interagency Fire Center44 over the full time series from 1979 to 2013 and also from 1992 to 2013, when fire occurrence data quality was highest45 (ρ = 0.679 and 0.683, respectively, P < 0.001).

Annual data on the number of wildfires and burned area also show an increase from 1968 to 1994, and are significantly correlated with both fire hazard indices.»

(Nitrogen is a big problem in native plant areas because it's one of the limiting nutrients, and when it's supplied whether by fertilizer or grazing animals or rainfall, that tips the balance toward European and Asian annual grasses that are very shallow - rooted — they steal every drop of rain that falls, and then burn by midsummer when the N. American native perennials are just setting seed; after a few years the deep - rooted perennials are gone; after a few more years so is the topsoil).

Between 1950 and 2009, the average annual burned area in California was at least several times lower than the burned area before 1800, they say.

The area burnt is six times larger than in the same period last year, and experts estimate that the fire has already released approximately 110 megatonnes of CO2 — that's almost twice Moscow's annual carbon emissions — in just one month.

So the researchers also analysed data for «annual burned area» for countries they could get data for.

The models» composite annual mean OA surface air concentrations exceed 0.5 microgram of carbon per cubic meter across most continental regions, as shown at the left of Fig. 3, with maximum concentrations primarily over biomass burning regions and secondarily over industrialized areas.

The projected increase in annual burn area varies depending on the type of ecosystem.

Every ecosystem type, however, is projected to experience an increase in average annual burn area.

«But that is because the National Interagency Fire Center curiously — and somewhat conveniently — only shows the annual burnt area back to 1960, when fire suppression indeed was going strong, and hence we had some of the lowest amounts of burnt forests ever,» explains Bjørn Lomborg, President of the Copenhagen Consensus Center.