navidezno gibanje zraka Flashcards

1
Q

kaj je navidezno gibanje zraka

A

celoletko krozenje zraka, ki se poleti premakne proti severu, pozimi pa proti jugu

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2
Q

potujoci cikloni = potujoce depresije

A

nastanejo na polarni fronti zaradi valovanja
premikajo z zahodnimi vetrovi
od zahoda proti vzhodu
znotraj se oblikujeta hladna in topla fronta
nastanek : hladen zrak izpodriva toplega

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3
Q

topla fronta

A

topel zrak se pocasi dviguje, ni izdatnih padavin, oblacnost se povecuje pocasi

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4
Q

hladna fronta

A

pride kmalu po topli, silovite padavine, ki ne trajajo dolgo, ozračje s ohladi

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5
Q

fronta

A

je stik različno toplih zračnih mas, ki se med seboj ne mešajo

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6
Q

okluzija

A

hladna fronta, dohiti toplo, izdatne padavine, konec ciklona

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7
Q

prehajanje ciklona
topla fronta

A

narivanje na hladen zrak
adiabatno ohlajanje = počasi
malo padavin

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8
Q

prehajanje ciklona
hlanda fronta

A

H zrak izpodriva toplega
adiabatno ohlajanje = hitro
izdatne padavine

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9
Q

ciklon tlak

A

nizek tlak
oblacno dezevno

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10
Q

anticiklon tlak

A

visok tlak
jasno suho

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11
Q

vremenotvorna sredisca

A

stalna obmocja visokega in nizkega zracnega tlaka
vplivajo na vrmee

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12
Q

ciklon

A

v srediscu ciklona je nizek tlak
vetrovi pihajo proti srediscu ciklona
v srediscu ciklona se zrak dviga, ohlaja
prinasa dezevno vreme

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13
Q

anticiklon

A

v sredini anticiklona je visok pritisk
zrak se v sredini spusca, adiabatno segreva in susi
vetrovi pihajo iz sredisca navzven
prinasa suho, jasno vrmee

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14
Q

vremenotvorna sreidca vrste

A
  • islandski minimum ( ciklon)
  • azorski maksimum (anticiklon)
  • sibirski maksimum (anticiklon)
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15
Q

islandski minimum

A
  • je del polarne fronte na severni polobli, potujoči ciklon, prinaša padavine
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16
Q

azorksi maksimum

A

je del SVZt okrog 30 vzporednika, cpliva poleti, iz afrike prinasa vroce in suho vrmee

17
Q

sibirski maksimum

A

vpliva pozimi, prinasa lepo in zelo mrzlo vreme, nastane ko se SV del azije mocno ohladi

18
Q

tropski cikloni = tajfuni= hurikan

A

nad toplim tropskim morjem
najveckrat pozno poleti oz jeseni
veliki zracni vrtinci
nizek zracni tlak
mocni vetrovi
izdatne padavine
ob stiku s kopnim izgubijo moc in zamrejo
smer : zahod

19
Q

oko ciklona

A

ko cklon doseže stopnjo zrelosti, sredisce z zelo nizkim tlakom