Sentences with phrase «evaporation rates from»

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The excessive heat increased the rate of water loss by evaporation and caused precipitation to shift from snow to rain, leaving a meager snowpack and parched reservoirs.

The darkest blue indicates deeper water, but it's also this shade for another reason: the rich blue hue comes from dye added to speed up the rate at which the water absorbs sunlight and warmth, aiding evaporation.

The most saline open sea is the Red Sea, where high temperatures and confined circulation result in high rates of surface evaporation and there is little fresh inflow from rivers.

Year 4 Science Assessments Objectives covered: Recognise that living things can be grouped in a variety of ways Explore and use classification keys to help group, identify and name a variety of living things in their local and wider environment Recognise that environments can change and that this can sometimes pose dangers to living things Describe the simple functions of the basic parts of the digestive system in humans Identify the different types of teeth in humans and their simple functions Construct and interpret a variety of food chains, identifying producers, predators and prey Compare and group materials together, according to whether they are solids, liquids or gases Observe that some materials change state when they are heated or cooled, and measure or research the temperature at which this happens in degrees Celsius (°C) Identify the part played by evaporation and condensation in the water cycle and associate the rate of evaporation with temperature Identify how sounds are made, associating some of them with something vibrating Recognise that vibrations from sounds travel through a medium to the ear Find patterns between the pitch of a sound and features of the object that produced it Find patterns between the volume of a sound and the strength of the vibrations that produced it Recognise that sounds get fainter as the distance from the sound source increases Identify common appliances that run on electricity Construct a simple series electrical circuit, identifying and naming its basic parts, including cells, wires, bulbs, switches and buzzers Identify whether or not a lamp will light in a simple series circuit, based on whether or not the lamp is part of a complete loop with a battery Recognise that a switch opens and closes a circuit and associate this with whether or not a lamp lights in a simple series circuit Recognise some common conductors and insulators, and associate metals with being good conductors

However drought - resistant plants conduct this process at night and close their pores during the day when the rate of water loss from evaporation is...

If we isolate the ocean for diagnosis, there is a rather short list of suspect forcings and feedbacks (ie changes in shortwave reaching ocean surface possibly from strong negative aerosol feedbacks, net positive rate change in loss of longwave from the ocean (which would have implications for the positive WVF), net positive heat loss through evaporation without balancing compensation (with other implications for positive WVF).

«Even if an area remains wet doesn't mean that it will be protected from the other aspects of climate change: rising and far more erratic air temperatures, higher rates of evaporation (evapotranspiration), and the rising concentration of CO2,» he said in an e-mail message.

The rate of evaporation from the ocean seems to be increasing as the world warms.

A great deal, including the rate of evaporation from the surface, a major mechanism of energy transfers in the atmosphere.

Part way there, but no quantitation yet: of the 3.77 W / m ^ 2 radiated back dowwnard, most goes to increased rate of evaporation of the water at the surface, and much less goes to increased mean temp increase at the surface; hence increased rate of non-radiative transfer of heat from surface to upper atmosphere, slight increase in rainfall as hydrological cycle is faster, and slight increase in cloud cover.

However there would then be more conduction, convection and on Earth more evaporation from the surface for an increased upward energy flow which would work to maintain the lapse rate set by sun and pressure.

that is because the water vapor pressure is supralinearly related to temperature: that is, a temp rise from 289K to 290K has a larger effect on vapor pressure (so, most likely, on the evaporation rate) than does a temp rise from 288K to 289K.

As the temperature increases, the water vapor pressure (hence by inference the water evaporation rate on non-dry surface) increases supralinearly; that is, a 1K increase from 288 K is much less than a 1K increase from 308K.

From this paper it seems that evaporation meant evaporation rate.

In his House of Commons presentation, toward the end, he gives a sketch of an alternative derivation of the «Climate Sensitivity» based on observed rates of evaporation increase per change in sea surface temperature, and this based on data from the 2007 paper by Wentz et.

Warm temperatures increase the rate of evaporation from parched soils and critically dry rivers, lakes, and streams — exacerbating the impacts of existing precipitation deficits.

If we are to get a real idea of the rate of tropical convection that drives Hadley cell dynamics and the size of the subtropical high pressure cells we need to measure the rate of evaporation from the tropical ocean.

Hence less than 0.8 W / m ² radiated from the surface do no longer reach the cosmos [26] and are carried away by the evaporation associated with a minuscule temperature increase of the surface: for evaporation at +6 W / m ² / °C, the required temperature increase would be 0.13 °C spread over the 200 years it would take to double the CO2 content of the air at the rate of +2 ppm / year.

The rate of evaporation from the ocean is increasing as the world warms.

The existence of that cooler layer is evidence that the rate of evaporation is the primary influence on variability in the rate of ocean energy loss (apart from internal ocean circulation variability which is not relevant here) and it follows that more evaporation for the same rate of conduction and radiation (from a stable temperature differential) will send that cooler layer deeper and / or intensify the temperature differential between it and the ocean bulk below.

From the rate of evaporation given above and figures in Energy Units we can calculate that this cooler cools a room at about the same rate that a simple 750 Watt heater would warm the same room.

I have been engaged in a discussion with a young climatology professional who thought that evaporation from the ocean surface left behind a residue of surplus energy to warm the oceans by reducing the rate of energy release from the oceans and thus justifying the AGW scenario.

Could an increase in greenhouse gases actually have a cooling effect over water by speeding up the rate of evaporation from the oceans thereby extracting energy faster from the oceans, speeding up the hydrological cycle and pushing energy faster to space?

Instead the rate of energy flow from ocean to air would be primarily governed by the rate of evaporation and not by temperature differentials.

So if one increases the rate of downwelling IR (thereby increasing the evaporation rate) then the increase in upward energy flow caused by the fall in the temperature of that 1 mm layer will be greater than the decrease in upward energy flow that will result from any reduced temperature differential between the topmost Knudsen layer and the ocean bulk arising from the application of Fourier's Law.

ii) At the same time it increases evaporation and therefore net cooling in SST (int) which increases the flow through the lower layers again thus cancelling i) for a zero net effect on the rate of energy flow from the subskin.

And if the deliverance of the radiation energy is intensive, then this might even cause both the increase of the evaporation rate (here on the behalf of the incoming radiation without the need of energy supply from below, which is the point of Stephen Wilde if I understand it correctly) and the increase of the temperature of the surface layer which is expected to initiate the flow of heat into the bulk of liquid phase.

It is often said that because the temperature gradient (from subskin to skin) changes then the rate of upward energy flow must slow down but that would not be the case if the enhanced rate of evaporation speeds up the rate of flow again to negate the expected slowdown from a decreased gradient.

Precipitation from clouds, in turn, influences soil moisture and evaporation rates.

DLR does increase the skin temperature but the increased evaporation takes away the energy that came from the DLR before it can either progress downward or slow down the upward rate of flow from the natural background processes.

If energy is being added to those molecules by DLR then why would the rate of evaporation be limited by the energy coming up from below?

The amount of DLR does not determine the rate of evaporation or upward radiation from the skin layer.

Additional to that, sufficient energy is used from the DLR to cause the rate of evaporation that we could measure.

Results from Fall et al. (12) indicate that TE (i) is larger than T in 8 areas with higher physical evaporation and transpiration rates (e.g. deciduous broadleaf forests and croplands) and (ii) shows a stronger relationship than T to vegetation cover, especially during the growing season (biomass increase).

The oceans control the background rate of energy flow from ocean to air via The Hot Water Bottle Effect and it is the energy flow from ocean to air (supplemented to a miniscule extent by the greenhouse effect) that drives the rate of evaporation by creating varying temperature differentials between sea surface and air at the surface.

The size of the temperature differential between air and water combined with the rate of movement of both air and water within the region of interaction dictates the rate of evaporation and the density and pressure differential dictates the direction of energy flow which on Earth is always continuous at variable rates from water to air.

Warmer water surfaces from extra downwelling infra red can not cause warming of the ocean bulk because the rate of evaporation increases proportionately to the extra energy available and the latent heat of evaporation is then taken mostly from the water.It is then no longer available to warm the ocean bulk.

As the world warms, the rate of evaporation from our oceans seems to be increasing, powering ever - stronger storms.

As regards a warming of the ocean skin, evaporation is a continuous process caused by temperaure, density and pressure (not just temperature) differentials between water and air so that the rate of evaporation accelerates when a water surface is warmed such as from the warming effect of extra greenhouse gases (especially if the air is dry).

In turn, the rate of evaporation drives the entire hydrological cycle by altering the size and latitudinal positions of the air circulation systems and thus the rate of energy transfer from surface to space.

However if those bursts of heat were to become more frequent or more intense then in order for the rate of evaporation to increase from the surface to counteract it, the kinetic energy of the water molecules (i.e. the water's temperature) would need to increase.

Stephen Wilde is quite correct in pointing to evaporation from the oceans and the rate of the hydrological cycle as the pre-eminent regulator of surface temperatures on Earth in his conceptual «model.»

The annual loss of water from a reservoir in arid or semiarid regions, where evaporation rates are high, is typically equal to 10 percent of its storage capacity.