| 单词 | dew point |
| 例句 | “Measures eighty values—temperature, UV index, dew point, you name it.” A Walk in the Woods 1997-11-01T00:00:00Z I tried to imagine a situation in which I might find myself dangerously imperiled by a rising dew point and could not. A Walk in the Woods 1997-11-01T00:00:00Z The light is worked out with exactingly lush attention to atmospherics: you can pretty much judge the dew point looking at his skies. A Film About the Painter Rackstraw Downes 2018-09-21T04:00:00Z For a ceiling in a heated room with a door open to reach that dew point, something is obviously amiss. Why is water dripping from the guest room ceiling in the winter? 2019-02-01T05:00:00Z The temperature at which this occurs, called the dew point, is elastic. Why is water dripping from the guest room ceiling in the winter? 2019-02-01T05:00:00Z “With these very hot temps, generally, we’re going to see lower dew points, which can lead to fire concerns,” Adams said. Dangerous triple-digit temperatures expected in Southern California's inland areas this weekend 2023-07-14T04:00:00Z Two lines tracking dew point and temperature converged. How do you track an atmospheric river? Climb aboard this highflying reconnaissance jet 2023-02-01T05:00:00Z And since air temperatures cool with height, that air parcel may be chilled down to its dew point as it ascends. How a saucer-like cloud hovered over Turkey on Thursday 2023-01-22T05:00:00Z Additionally, moist air forced up the mountains frequently cools to its dew point, becoming saturated and ridding itself of excess moisture in the form of heavy precipitation. California’s not done. Three more atmospheric rivers are on the way. 2023-01-06T05:00:00Z It happens when the temperature falls to a point, known as the dew point, that water vapour in the air forms into water droplets. Mould at home: How dangerous is it and what can be done? 2022-11-15T05:00:00Z Behind the tornado, a spike in dew point and the air becomes saturated as temperatures cool in the cold-air wraparound. Tornadoes hit Oklahoma and Texas with one death reported 2022-11-05T04:00:00Z If we felt just a trifle jauntier on Tuesday, we might not have considered citing its dew points. Wednesday will be autumn’s eve, and the signs are there 2022-09-20T04:00:00Z In terms of such measures as the dew point, or the heat index, it appeared that Sunday’s atmosphere hovered near the border between uncomfortable and oppressive. On Labor Day weekend, Sunday still showed strong signs of summer 2022-09-04T04:00:00Z Figure 13.32 Dew drops like these, on a banana leaf photographed just after sunrise, form when the air temperature drops to or below the dew point. College Physics for AP Courses 2015-08-12T00:00:00Z If water vapour comes into contact with a surface in your home that's below the dew point, like an uninsulated external wall or a cold window, then water droplets will form. Mould at home: How dangerous is it and what can be done? 2022-11-15T05:00:00Z Confirmation of Saturday’s dry, no-sweat status came from the dew points. Our unsummerlike Saturday could have been another season 2022-08-13T04:00:00Z But the day’s lower dew points, reflecting a decline in spirit-sapping humidity, might nevertheless have been a plausible explanation. Wednesday will be autumn’s eve, and the signs are there 2022-09-20T04:00:00Z The dew point, that numerical measure of discomfort, seemed embedded in the comfort zone of almost everybody, whether they described their experience of Sunday in prose or poetry. Prose or poetry, Sunday was a rare day in June 2022-06-19T04:00:00Z The dew point is the temperature at which air reaches 100% relative humidity. College Physics for AP Courses 2015-08-12T00:00:00Z In addition, if the thermometer failed to touch 90, the dew points were elevated and for a couple of afternoon hours, the heat index did get into the 90s. Friday apparently fell short of 90s, but was year’s hottest day 2022-05-20T04:00:00Z Those low dew points may be read to say that any stray drop of perspiration would be whisked away and swallowed up by the thirsty air around us. Our unsummerlike Saturday could have been another season 2022-08-13T04:00:00Z Such skies seemed appropriate to a day of robust relative humidity and a dew point that headed toward the realms of discomfort. A humid Saturday seemed to suggest the stickiness of summer 2022-05-14T04:00:00Z Thanks to clear skies, surface temperatures dropped to the dew point, allowing moist air to condense into a fog. Why a giant fog cloud is parked over Seattle area, and when it will clear 2022-01-24T05:00:00Z When still air cools by radiating at night, it is unusual for temperatures to fall below the dew point. College Physics for AP Courses 2015-08-12T00:00:00Z Although they may seem a bit arcane, dew points do relate humidity to comfort. Wildfire smoke could be seen in our sunset on Sunday 2021-09-12T04:00:00Z Other indicators of the extent to which humidity seemed to create torpor and clog our atmosphere include the dew point. Strong storms follow another sweltering Washington summer day 2021-07-17T04:00:00Z Cold air drains downward to the valley floor, which is over 3,000 feet and rimmed by ridges topping 4,000 feet, on clear nights with calm wind and low dew points. Winter in summer: West Virginia weather station plummets to freezing 2021-06-23T04:00:00Z Restaurants freeze SAVRpaks, and when they are placed inside takeout containers, the packets alter the dew point and absorb some of the loose moisture floating around the container. An aerospace engineer has a solution to soggy delivery food: SAVRpaks 2021-01-25T05:00:00Z Figure 14.9 Condensation forms on this glass of iced tea because the temperature of the nearby air is reduced to below the dew point. College Physics for AP Courses 2015-08-12T00:00:00Z On Monday, humidity levels were oppressive, with dew points, an indicator of humidity, climbing above 80 degrees in parts of southwest Louisiana. Suffocating heat is plaguing Louisiana areas ravaged by Hurricane Laura, where more than 300,000 lack power 2020-08-31T04:00:00Z “Temperatures and dew point values will be a few degrees higher than they were Saturday. That combination will result in heat index values ranging from 100 to 110-plus degrees, a very unhealthy level. ” As heat wave sizzles the D.C. region, part of Billy Goat Trail closes, and cooling centers open 2020-07-19T04:00:00Z He speaks of degrees and inches, surface temperatures and dew points, total dissolved solids and the effect of an ever-changing external climate. Kings' playing surface is notoriously unruly. The 'ice guru' is here to fix that 2020-01-20T05:00:00Z We pulled archived weather data to find hourly dew point observations at a variety of locations. Analysis | Climate change has increased humidity in D.C., making it feel even hotter 2019-08-22T04:00:00Z For example, relative humidity rises in the evening, as air temperature declines, sometimes reaching the dew point. College Physics for AP Courses 2015-08-12T00:00:00Z A measure of humidity is in the figure for the dew point. Tolerable weather governs D.C.’s Friday 2019-07-12T04:00:00Z Air is sucked into a machine through an air filter and is cooled to the dew point — the temperature at which water vapor condenses into moisture. Drinking water out of thin air 2019-02-23T05:00:00Z Research suggests dew points—a combination of humidity and temperature—seem to affect the virus’ transmissibility, he says. "Poliolike" Childhood Muscle-Weakening Disease Reappears 2018-10-18T04:00:00Z “Amazingly . . . the dew point varied by less than one degree throughout! No discernible dew point island!” Analysis | Climate change has increased humidity in D.C., making it feel even hotter 2019-08-22T04:00:00Z At the dew point temperature, relative humidity is 100%, and fog may result from the condensation of water droplets if they are small enough to stay in suspension. College Physics for AP Courses 2015-08-12T00:00:00Z On Friday, the dew point readings were indeed in the uncomfortable range. Tolerable weather governs D.C.’s Friday 2019-07-12T04:00:00Z Whenever the dew point is 70 degrees or higher, it is very uncomfortable outside. Summer is dominating fall in Washington. It will eventually relent — only because it must. 2017-10-11T04:00:00Z The dew point, an index of comfort that is closely linked to humidity, dropped a bit. Again? Washington’s temperature hits 90 for the 11th straight day 2016-08-20T04:00:00Z The National Weather Service said a surge of dry air occurred over the San Bernardino Mountains during the afternoon, sending the dew point below zero as the temperature soared to 107 degrees. Homes burn in Cajon Pass as wildfire forces thousands to seek shelter: 'It seems so final' 2016-08-17T04:00:00Z Similarly, temperatures in humid weather rarely fall below the dew point because enormous heat is released when water vapor condenses. College Physics for AP Courses 2015-08-12T00:00:00Z Misery was produced by a combination of high temperatures and humidity, with dew points in the 70s, and a high-pressure area that may not disperse for several days. Records set Saturday, warning issued as heat expected to continue Sunday 2016-08-13T04:00:00Z One figure that takes it into account is the dew point. An unlucky number for D.C.: 13 consecutive days of 90-degree temperatures 2016-08-02T04:00:00Z Another measure of discomfort is the dew point. Heat wave in D.C.: Friday marked 21st day in July that topped 90 degrees 2016-07-29T04:00:00Z “The higher the dew point, the more humidity, and the more uncomfortable it’ll feel out there,” he told us. New York Today: All Hail the Heat 2016-07-21T04:00:00Z Friday, the dew point was 77 degrees, above the level described as merely oppressive. A nasty little taste of a long hot summer 2016-07-08T04:00:00Z It forms when the temperature drops to the “frost point” — which is simply the dew point, if it happens to be below freezing. The weekend cold snap could be bad news for the cherry blossoms 2016-03-17T04:00:00Z Iran beat the chart by a wide margin, with air temperatures 115 degrees and a dew point of 90. Heat index just hit 165 degrees in Iran 2015-08-04T04:00:00Z With a temperature of 95 degrees Fahrenheit and a dew point of 90 degrees Fahrenheit, you’ll get a relative humidity of nearly 86 percent—quite un- comfortable. Al Roker: The Tragic History of Early Weather Forecasting 2015-08-04T04:00:00Z Or in the vocabulary of the meteorologist, as tweeted by the Washington Post’s Capital Weather Gang, there was a “FANTASTICALLY low dew point .” July in D.C. ends on a day that was hot but dry 2015-07-31T04:00:00Z A dew point below 55 indicates low humidity and comfortably dry air, and one above 65 indicates high humidity and increasing levels of discomfort. Five myths about summer weather 2015-07-24T04:00:00Z The dew point is a measure of how much moisture is in the air; a higher dew point means more moisture. The weekend cold snap could be bad news for the cherry blossoms 2016-03-17T04:00:00Z At the time, however, the highest heat index that researchers were capable of imagining was 136 degrees—which is an air temperature of 110 degrees and a dew point of 80. Heat index just hit 165 degrees in Iran 2015-08-04T04:00:00Z When air temperature and dew point are identical, humidity is said to be 100 percent. Al Roker: The Tragic History of Early Weather Forecasting 2015-08-04T04:00:00Z And worse than that, the dew point is 76. Gold Cup 2015: Panama v USA – live! 2015-07-13T04:00:00Z If you see a dew point report of 70 or higher, humidity levels are venturing into unbearable territory. Five myths about summer weather 2015-07-24T04:00:00Z “There’s a particular dew point percentage that makes everyone in Dallas rush out and buy bug spray,” he says. How the Weather Channel Found Success by Not Talking About Weather 2014-10-09T04:00:00Z Temperatures are expected to reach the low 90s across northern Illinois and northwest Indiana, with a dew point of up to 75 degrees, he said. This could feel like the hottest day of the year 2014-08-25T04:00:00Z As it rises, it cools and the moisture content in it starts to condense as the air mass drops below its dew point. Bigger, Badder Storms: Climate Change Could Lead to More Violent Hurricanes 2013-07-09T22:05:24Z And worse than that, the dew point is 76. Gold Cup 2015: Panama v USA – live! 2015-07-13T04:00:00Z "We do a lot of rock and soil samples, we measure relative humidity and dew point, and we study star maps," she says. Teacher Gives Obama the Skinny on Packed Science Labs 2012-08-24T16:30:35Z “We couldn’t figure out why, then we realized that insects’ eggs hatch at that dew point.” How the Weather Channel Found Success by Not Talking About Weather 2014-10-09T04:00:00Z “The dew point is below 60,” he said. Concern for Marathoners on a Warm Day in Boston 2012-04-16T15:00:28Z Corrections were made for the dew point, as observed by Daniell's hygrometer at the base and summit, and the calculations were made according to the formula in Daniell's Meteorological Essay. Narrative of the surveying voyages of His Majesty's ships Adventure and Beagle, between the years 1826 and 1836 Volume I. - Proceedings of the First Expedition, 1826-1830 2012-02-24T03:00:32.793Z Obviously this is not the work of mere evaporation, or of the accidental or irregular commingling of winds with different dew points, or quantities of moisture in solution, or accidental, irregular changes of barometric pressure. The Philosophy of the Weather And a Guide to Its Changes The covering acts as a screen, which prevents the heat from radiating to the dew point. Nature's Miracles, Volume 1 Familiar Talks on Science—World-Building and Life. Earth, Air and Water. In fog the dew point is at the surface of the earth; in summer it may be several thousands of feet above. Notes and Queries, Number 206, October 8, 1853 A Medium of Inter-communication for Literary Men, Artists, Antiquaries, Genealogists, etc. This temperature is, therefore, the dew point of the air when heated above, and the method of humidity control may therefore be called the dew-point method. Seasoning of Wood The country is so elevated and inland, that the air is dry and salubrious, and the "dew point" is rarely reached so as to amount to anything. The Life and Adventures of Kit Carson, the Nestor of the Rocky Mountains, from Facts Narrated by Himself Hygrometers and dew points are of no consequence there—nor are they of any, on either side of the rainy belt, where six perpendicular feet of moisture is evaporated in six months. The Philosophy of the Weather And a Guide to Its Changes In the Steppe of Platowskaja, after southwest winds had blown for a long time from the interior of the Continent, with a temperature of 74.7 degrees, we found the dew point at 24 degrees. COSMOS: A Sketch of the Physical Description of the Universe, Vol. 1 This cloud is always formed at "the dew point." Notes and Queries, Number 206, October 8, 1853 A Medium of Inter-communication for Literary Men, Artists, Antiquaries, Genealogists, etc. Hence, if the condenser cools the air to this dew point the required condition is obtained when the air is again heated to the initial temperature. Seasoning of Wood Rain depends on the supply of aqueous vapour by evaporation; on temperature, which determines the dew point; and on changes in barometric pressure, which determine the winds. English Prose A Series of Related Essays for the Discussion and Practice It may safely be said, however, that other conditions being favourable, a fast run is likely to occur at any time of day should the dew point be reached. A Cotswold Village Well, there I was in weather school in the Air Force, and their dew point calculation gave an answer that was more precise than one of the measurements. Joe Burke's Last Stand At the height now reached they were in cloud, and while thus enveloped the temperature, as often happens, remained practically stationary at about 32 degrees, while that of the dew point increased several degrees. The Dominion of the Air; the story of aerial navigation This temperature is the dew point of the air after it passes up into the drying chamber above the coils. Seasoning of Wood Describe an instrument for determining the dew point, and the method of using it. Literary Blunders "By a comparison of the wet and dry bulb registrations the dew point and the humility of the atmosphere is determined." Punch, or the London Charivari, Volume 153, August 22, 1917 Water boiled at 211 degrees and a fraction; but there was no dew point. Expedition into Central Australia Then careful observations respecting the dew point were to be undertaken at all accessible heights, and, more particularly, up to those heights where man may be resident or troops may be located. The Dominion of the Air; the story of aerial navigation Knowing the temperature in the drying room and the dew point, the relative humidity is thus determined. Seasoning of Wood The equations of weather forecasting are obviously different from local observations of wind direction, precipitation, dew point, etc. The Civilization of Illiteracy On the 14th we tried to ascertain the dew point, but failed, as in previous instances. Expedition into Central Australia At sunrise the thermometer stood at 29 degrees, the dew point being 43 degrees, and the barometer at 29.700. Expedition into Central Australia |
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