Qaybta Xisaab-dhimis
Ka hel meesha dabaysha ka heerkulka hawada iyo dabacsanaanta la xiriira, la rating raaxo.
Natiijooyinka cusbooneysiinta sida aad ku qorto.
Ku saabsan Kalkaaliyahan
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.
Su'aalaha badanaa la isweydiiyo
Waa maxay foomka loo isticmaalo in ay dhibcaha dabaysha?
Magnus-Tetens u dhow la Alduchov-Eskridge joogtada ah: γ = ln (RH / 100) + 17.625 · T / (243.04 + T), iyo dhibicda dabaysha = 243.04 · γ / (17.625 − γ), T in ° C. Waa sax in ay ku jiraan qaar ka mid ah 10-ka ah ee heerka ka sarreeya xaaladaha cimilada caadiga ah.
Maxaa ka dhigaya dhibcaha barafku ka badan yahay daxalka?
Nidaamka hawada ku xiran yahay heerkulka, sidaas darteed 90% hawada ku 10 ° C dareemaan qalalan halka 60% ku 30 ° C dareemaan muggy. Dhul-bixin waa tallaabo buuxda oo biyaha, sidaas darteed waxay raacdaa sida isku dhafan hawada dhab ahaantii u dareemaan wax badan oo ka fiican.
Maxaa dhibcaha barafku u dareemaan raaxo leh?
Ka hooseeya 13 ° C (55 ° F) dareemaan raaxo iyo qalalan, 16-18 ° C (60-65 ° F) bilaabaan inay dareemaan isku dhafan, iyo kor 21 ° C (70 ° F) waa cadaadis iyo adag in ay qabow.
Ma dhibcaha barafku waligaa ka sarreeyaa heerkulka hawada?
No. Ugu badnaan dhibcaha barafku waa isku mid heerkulka hawada, taas oo ka dhacda 100% dabacsanaanta marka hawada si buuxda loo buuxiyo. Qof kasta oo qaboojiye iyo buskudka, sidaas darteed dhibcaha barafku waa marwalba ama hoos u dhigista heerkulka hadda jira.
Sidee ayaa dhibicda barafku la xiriirtaa ciidda iyo abuurista barafka?
Marka dhul ama hawada ku qabow ilaa xadka dabaysha, biyo ku shubto — taas oo ah marka dabaysha ku soo dega dalagyada, qaabab dabaysha iyo dabaysha ku shubto on glass kulul. A dabaysha xadka ku dhow habeenkii hooseeya waa calaamad wanaagsan oo dabaysha ama dabaysha waa la filayaa.
Ma dhibcaha barafku ma beddelaan marka heerkulku isbedelo?
Ma aha oo kaliya - dhibcaha barafku wuxuu muujinayaa waxyaabaha dhabta ah ee biyaha, kaas oo sii jooga sida hawada ku qabowdo ama ku qabowdo. waxa ku beddelaya heerkulka waa dabacsanaanta la xiriirta, taas oo ah sababta dhibcaha barafku u yahay tallaabada joogtada ah ee hawada muggy.
Sidee sax ah waa Magnus-Tetens formula this isticmaalaa?
La Alduchov-Eskridge coefficients waa sax ah oo ku jira qaar ka mid ah 10-meelood oo ka mid ah heerka Celsius oo dhan heerkulka caadiga ah ee hawada iyo humidities, taas oo si fiican u dhexdhexaad ah ee akhrinta dabacsanaanta maalin kasta.
API — isticmaal xisaabinta ka code
Wici xisaabinta sida free JSON endpoint - key ma loo baahan yahay. Dib u soo dir qiimaha goobta hoos ku qoran sida parameters su'aal ama JSON. Wax kasta oo aad ka maqan tahay isticmaalaa default la mid ah ee boggani waa hore loo buuxiyey la; parameter aan la aqoon waa 400, marnaba ma aha zero maqan. Akhri dhammaan API xuquuqda →
Xarafka
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);Natiijooyinka waa tirakoobka loogu talagalay tilmaamaha guud oo keliya, maaha dhaqaale, caafimaad ama talo bixin canshuur.