आर्द्रता

vayumandal mean vidyaman adrishy jalavashp ki matra hi ardrata kahalati hai. yah mukhyat: tin prakar ki hoti hai.

1. nirapeksh ardrata- vayu ke prati ikaee ayatan mean vidyaman jalavashp ki matra ko nirapeksh ardrata kahate haian.
2. vishisht ardrata- hava ke prati ikaee bhar mean jalavayu ke bhar ka anupat vishisht ardrata kahalati hai.
3. sapeksh ardrata- ek nishchit tapaman par nishchit ayatan vali vayu ki ardrata samarthy tatha usamean vidyaman vastavik ardrata ke anupat ko sapeksh ardrata kahate haian.

ardata varsha, badal, kuhara, os, ola, pala adi se jnat hota hai ki prithvi ko ghere hue vayumandal mean jalavashp sada nyoonadhik matra mean vidyaman rahata hai. prati ghan seantimitar hava mean jitana miligram jalavashp vidyaman hai, usaka man ham rasayanik ardratamapi se nikalate hai, kiantu adhikatar vashp ki matra ko vashpadav dvara vyakt kiya jata hai. vayu-dab-mapi se jab ham vayudab jnat karate haian tab usi mean jalavashp ka bhi dab sammilit rahata hai.

apekshik ardrata-vayu ke ek nishchit ayatan mean kisi tap par jitana jalavashp vidyaman hota hai aur utani hi vayu ko usi tap par santript karane ke lie jitane jalavashp ki avashyakata hoti hai, in donoan rashiyoan ke anupat ko apekshik ardrata kahate hai: arthath‌ ta ta0 par apekshik ardrata ek ghan sean.mi. vayu mean ta0 seantigred par prastut jalavashp¸ek ghan seantimitar vayu mean ta0 seantigred par santript jal vashp . baऍl ke anusar yadi ayatan sthayi ho to kisi gais ki matra usi ke dab ki anupati hoti hai. at:

apekshik ardrata = prastut jalavashp ki dab usi tap par jalavashp ki santript dab jalavashp ki dab, osaank jnat karane par, reno ki sarani se nikala jata hai (dr.'ardratamapi').

ardrata se labh -vayu ki nami se b da labh hota hai. svasthy ke lie vayu mean kuchh aansh jalavashp ka hona param avashyak hai. hava ki nami se pe d paudhe apani pattiyoan dvara jal prapt karate haian. grishm rritu mean nami ki kami se vanaspatiyaan kumhala jati haian. hava mean nami adhik rahane se hamean pyas kam lagati hai, kyoanki sharir ke anaginat chhidroan se tatha shvas lete samay jalavashp bhitar jata hai aur jal ki avashyakata ki poorti bahut aansh mean ho jati hai. shupk hava mean pyas adhik lagati haian bahar ki shupkata ke karan tvacha ke chhidroan se sharir ke bhitari jal ka vashpan adhik hota hai, jisase bhitari jal ki matra ghat jati hai. garami ke dinoan mean shupkata adhik hoti hai aur ja de mean kam, yadyapi apekshik ardrata ja de mean kam aur garami mean adhik paee jati hai. vashpan hava ke tap par bhi nirbhar rahata hai.

ruee ke udyog dhandhoan ke lie hava mean nami ka hona param labhakar hota hai. shushk hava mean dhage toot jate haian. achchhe karakhanoan mean vayu ki ardrata kritrim upayoan se sada anukool man par rakhi jati hai. hava ki nami se bahut se padartho ki bhitari rachana par nirbhar hai. jhillidar padarth nami pakar phail jate haian or sookhane par siku d jate haian. reshedar padarth nami khakar lanbaee ki apeksha motaee mean adhik badhate haian. isi karan rassiyaan aur dhage bhigo dene par chhote ho jate haian. charakhe ki dori dhili ho jane par bhigokar k di ki jati hai. naya kap da pani mean bhigokar sukha dene ke bad siku d jata hai, kiantu rookha bal nami pakar b da ho jata hai bal ki lanbaee mean 100 pratishat ardrata badhane par sookhi avastha ki apeksha 2.5 pratishat vriddhi hoti hai. bal ke bhitar protin ke anuoan ke bich jal ke anuoan ki tah ban jati hai, jisaki motaee nami ke sath badhati jati hai. in tahoan ke prasar se poore bal ki lanbaee badh jati hai (dr.ardratamapi mean sausure ka ardratadarshak).

ardratayukt vayumandal prithvi ke tap ko bahut kuchh surakshit rakhata hai. vayumandal ki gaisean soory ki rashmiyoan mean se apani anuvadi rashmiyoan ko chunakar sokh leti haian. jalavashp dvara shoshan any gaisoan ke shoshanoan ke yog ki apeksha lagabhag doona hota hai. tap ke ghatane par vahian jalavashp dhuaan, dhool tatha gaisoan ke anuoan par sanghanit hota hai or kuhare, badal adi ki rachana hoti hai. aise sanghanit jalavashp dvara rashmiyoan ka shoshan bahut adhik hota hai. jalavashp 10 myoo tarangadairghy ki rashmiyoan ke lie paradarshak hota hai, kiantu 0.1 milimitar moti jalavashp ki tah inake keval 1/100 bhag ko par hone deti hai [1myoo=1 maikr aaun=10,000aian. (aiangastram) aur 1aian.=10--8seantimitar]. at: badal or kuhara, jinaki motaee char chhah mitar hoti hai, kale piand ke saman poorn shoshak tatha vikirnak hote haian, soory ke prishth tap 6000° sean. hota hai. vin ke dvitiy niyam ke anusar any rashmiyoan ke sath 0.5 myoo tarangadairghyavali rashmiyaan uchchatam tivrata se vikirn hoti haian. vin ka niyam hai :

t= a/taq°
[lm=b/T]

jahaan tapt piand se vikirn rashmi ka tarangadairghy t hai, sthiraank a = 2940 aur taq° paramatap hai.

yadi vayumandal mean badal n ho to sabhi chhoti rashmiyaan prithvi par chali ati haian. yadi badal athava ghana kuhara rahata he to 80 pratishat bhag paravartit hokar oopar chala jata hai, keval 20 pratishat bhag prithvi par pahooanchata hai. in rashmiyoan se dharatal ka tap badhakar 20° sean. se 30° sean., arthath‌ lagabhag 300° paramatap ho jata hai. vin ke poorvokt niyam ke anusar 10 myoo ke asapas ki rashmiyaan adhik tivrata se vikirn hoti haian. in rashmiyoan ko badal aur kuhara paravartit kar oopar nahian jane dete aur is prakritik vidhan se dharatal tatha vayumandal ka tap ghatane nahian pata. kanbalaroopi vayumandal kachagrih ke saman tap ko surakshit rakhata hai. yahi karan hai ki ja de ki dinoan mean kuhara rahane par thandak adhik nahian lagati. badali hone par garmi badh jati hai tatha nirmal akash rahane par thandak badh jati hai.

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