Sentences with word «evapotranspiration»

Soil moisture sensors show, over time, how much water has gone into the ground, and how much has left, either from drainage or in the form of evapotranspiration from plants.

This would contribute to a difference in evapotranspiration rates and aridity.

The average relative humidity in cities is usually several percent lower than that of adjacent rural areas, primarily because of increased runoff of precipitation and the lack of evapotranspiration from vegetation in urban areas.

There is little evidence for a human influence on precipitation deficits, but a lot of evidence for a human fingerprint on surface soil moisture deficits — starting with increased evapotranspiration caused by higher temperatures.

DiGiovanni, K., F. Montalto, and S. Gaffin, 2018: A comparative analysis of micrometeorological determinants of evapotranspiration rates within a heterogeneous urban environment.

As plants take in carbon dioxide for photosynthesis, they release water through evapotranspiration from their leaf pores, which helps them cool down in the hot sun, much as human sweat cools us down.

This is due to a process known as evapotranspiration from the leaves of the forest trees.

Researchers in the historical Beaver Creek experiments hypothesized that lower tree densities associated with thinning would reduce evapotranspiration losses, and thereby allow more water to be available for soil moisture, groundwater recharge, and surface water runoff [29].

the relative absence of water in urban areas means that less energy is used for evapotranspiration and more is available to heat the lower atmosphere;

Users can sign in to the portal using OpenID and access the snow water equivalent, soil moisture, surface runoff (runoff), subsurface runoff (baseflow), and actual evapotranspiration data for a region covering the Peace, upper Columbia, Fraser and Campbell River watersheds, in three different formats, using an intuitive, map - based web interface.

Since condensation reduces air pressure, intense condensation of water vapor associated with evapotranspiration of natural forests creates regional areas of low pressure.

Suggested mechanisms involve changes in the water cycle: increased evapotranspiration losses, extended water - stress periods, earlier snowmelt, and lengthened fire seasons.

I have derived daily potential evapotranspiration estimates for the U.S. using the Hargreaves - Samani equation and the NCEP / NCAR Reanalysis dataset.

The lower relative humidity and increased temperatures that would result from potential reductions in fog and low cloud cover could increase plant evapotranspiration rates, raise soil water deficits, and accelerate risks of forest fire.

Also, coniferous species are generally more conservative in their water use, which could lead to warming through a decrease in [evapotranspiration],» said Naudts.

The researchers produced a long - term global satellite record of land evapotranspiration using remote sensing satellite data.

But warming the systems by 4 degrees Celsius resulted in more evapotranspiration, enough that groundwater had to support streamflow an entire season earlier, beginning in summer rather than in fall.

In warm, dry regions, irrigation increases the amount of water available for plants to release into the air through a process called evapotranspiration.

These parameters regulate processes such as plant carbon uptake by photosynthesis and how precipitation is separated into evapotranspiration to the atmosphere and river runoff.

One report I saw suggested that 40 % of the rainfall over Brazil is «recycled» via evapotranspiration from the Amazon forest.

Deforestation also contributes to decreased evapotranspiration, which lessens atmospheric moisture and precipitation levels.

Tubiello, F.N., G. Lin, J.W. Druitt, and B.D.V. Marino, 1999: Ecosystem - level evapotranspiration and water - use efficiency in the desert biome of Biosphere 2.

Event attribution analysis suggests that human induced greenhouse gas increases may also have contributed by causing evapotranspiration rates to be higher than they would have been under pre-industrial conditions.

Monthly precipitation data was taken from the WorldClim global dataset, and evapotranspiration data was taken from the FAO - adopted monthly reference produced by the Climate Research Unit at the University of East Anglia.

The laser equipment will eventually estimate daily evapotranspiration rates on a regional scale.

The illustration clearly shows that thermals and evapotranspiration account for a total of 97 watts per square meter delivered to the atmosphere for re-radiation to space, while total radiation to space is 341 watts per square meter.

Why not see what they have to say about evapotranspiration [1]?

«In large part, the answer is that the basin has become hotter, which modifies several facets of the hydrologic cycle that lie between precipitation and runoff, including evapotranspiration and sublimation rates, the timing of snowmelt and soil moisture characteristics,» according to the paper.

According to the authors of a study published in HortScience, growing requirements for sweetpotato crops in California closely match the weather conditions in the Treasure Valley of eastern Oregon and southwestern Idaho, where the growing season is characterized by high evapotranspiration and low precipitation.

University of Montana Professor John Kimball is among the team of researchers who published an article on Oct. 30 about their study on Nature magazine's website titled «Vegetation Greening and Climate Change Promote Multidecadal Rises of Global Land Evapotranspiration.»

This same study found that removal of all trees in a wildfire - burned site reduced annual evapotranspiration by 20 %.

Since the model started with a low warming figure, it resulted in a low warming figure when evapotranspiration was plugged in.

Shukla S., D. J. McEvoy, M. T. Hobbins, G. Husak, J. Huntington, C. Funk, D. Macharia and J. P. Verdin (November 2017): Examining the value of global seasonal reference evapotranspiration forecasts to support FEWS NET's food insecurity outlooks.

Field studies indicate it is possible to maintain 200 bushels per acre of yield at an irrigation level of 75 percent evapotranspiration requirement with some new hybrids.

In addition to global evapotranspiration trends, they examined vegetation greenness and general climate data including temperature, precipitation and cloudiness.

By measuring the amount of precipitation that has fallen against actual soil water content, it's possible to quantify the water lost to evapotranspiration while each crop is growing.

Possibly worse, though, studies that focus entirely on a forest's demand on water supplies neglect that even this superficial selfishness results in transpiration that effectively irrigates the atmosphere, providing an important supply of water for downwind rainfall: e.g., Hornberger et al say «Evapotranspiration represents a dominant outflow of water from most catchments and accounts for approximately two - thirds of precipitation over most continental land masses.»

That gives a decrease in stomatal area / density, so gives LESS evapotranspiration.

Hamilton uses the soil - water sensors to measure the rate of evapotranspiration occurring within each cropping system.

Hamilton's team reports that the perennial system's evapotranspiration did not differ greatly from corn — a finding that contrasts sharply with earlier studies that found particularly high perennial water use in areas with high water tables.