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Aýa temperaturasy we deňeşdirilen çyglykdan, rahatlyk derejesi bilen, çyglyk nokadyny tap.
Netijeler ýazýan wagtyň täzelener.
Bu hasapçy hakda
The dew point is the temperature to which air must be cooled for its water vapour to start condensing into dew, and it is the most honest single measure of how much moisture the air actually holds. A higher dew point means more water in the air and a muggier, stickier feel; it is also the temperature at which fog forms, grass gets damp overnight and a cold drink beads with condensation. This dew point calculator derives it from the air temperature and the relative humidity you enter.
It uses the Magnus-Tetens approximation with the Alduchov-Eskridge coefficients (a = 17.625, b = 243.04 °C): first γ = ln(RH / 100) + aT / (b + T), then the dew point = bγ / (a − γ), with T in °C. As a worked example, air at 25 °C and 60% relative humidity has a dew point of about 16.7 °C — comfortable edging toward sticky. Drop the humidity to 30% at the same 25 °C and the dew point falls to roughly 6 °C, distinctly dry. The method is accurate to within a few tenths of a degree across ordinary weather, and the tool works in either °C or °F.
Dew point predicts comfort far better than relative humidity, because relative humidity depends on temperature: 90% humidity on a cold morning feels dry, while 60% on a hot afternoon feels oppressive. As an absolute measure, dew point cuts through that — below about 13 °C (55 °F) feels comfortable, 16–18 °C (60–65 °F) starts to feel sticky, and above 21 °C (70 °F) is oppressive and hard to cool down in. The same value tells you when condensation will form on windows, pipes and aircraft surfaces.
Köp soralýan soraglar
What formula is used for the dew point?
Alduchov-Eskridge konstantlary bilen Magnus-Tetens golaýlaşmagy: γ = ln(RH/100) + 17.625·T/(243.04+T), we çüw noktasy = 243.04·γ/(17.625−γ), T °C-da. Bu normal howa şertlerinde bir gradusyň bir näçe onluklarynyň içinde dogry.
Näme üçin çyg nokady çygdan has möhümdir?
Relatiw çyglyk temperatura bagly, şonuň üçin 90% çyglyk 10 °C-de gurak duýulýar, 60% çyglyk 30 °C-de bolsa ysgynsyz duýulýar. Çyglyk nökeri çyglykyň absolut ölçegidir, şonuň üçin ol howanyň näçe çyglyk duýulmagyny aňladýar.
Haýsy çyglylyk derejesi rahatlyk berýär?
13 °C (55 °F) temperaturadan aşakda rahat we gurak duýulýar, 16-18 °C (60-65 °F) temperaturada ysgynsyz duýulýar, 21 °C (70 °F) temperaturadan ýokary bolsa, basyşly we sowuk duýulýar.
Buz nokady howanyň temperaturasyndan has ýokarymy?
Haýal. Ençemelikde, buz nokady howanyň temperaturasyna deňdir, bu 100% deňeşdirilen çyglykda bolup geçýär, howa doly batly bolsa. Her hili sowadyjy we batyrgaý kondensirlenýär, buz nokady her wagt häzirki temperaturada ýa-da ondan aşakda bolýar.
How is dew point related to fog and dew forming?
When surfaces or the air cool to the dew point, vapour condenses — that is when dew settles on grass, fog forms and condensation beads on a cold glass. A dew point close to the overnight low is a good sign fog or dew is likely.
Temperatura üýtgeýende, çyglylyk nökeri üýtgeými?
Not on its own — the dew point reflects the actual moisture content, which stays put as the air warms or cools. What changes with temperature is the relative humidity, which is why dew point is the steadier measure of muggy air.
Bu ulanan Magnus-Tetens formula näçe dogry?
Alduchov-Eskridge koeffisiýentleri bilen ol selsiusyň bir-iki onluk derejesi içinde hakykydyr, howanyň temperaturasy we çyglylygy normal aralykda, bu her günki çyglylygy okamakda hakykatdan daşda.
API — bu hasapçyny koddan ullan
Bu hasapçyny boş JSON ahtar noktasy hökmünde çagyr - açar gerek däl. Aşakdaky meýdança mykdarlaryny soragyň parametrleri ýa-da JSON hökmünde iber. Siziň goýmaýan hernäňiz şu sahypanyň öň bellenen öň bellenenini ulanýar; namydar parametr 400, hiç wagt sessiz sıfır däl. Eňlisçe senedleri oka →
Endpoint
GET https://calculator.free/api/v1/dew-point/curl
curl "https://calculator.free/api/v1/dew-point/?units=c&temp=25&humidity=60"JavaScript fetch()
const r = await fetch(
"https://calculator.free/api/v1/dew-point/?" + new URLSearchParams({
"units": "c",
"temp": "25",
"humidity": "60"
}));
const data = await r.json();
console.log(data.results);Netijeler diňe umumy ýardam üçin hasaplanypdyr, maliýe, saglyk ýa-da salgyt maslahaty üçin däl.