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Lumesild

Lumesild on lumest moodustunud sild liustikulõhe või oja kohal.[1]

Lumesild areneb välja lumekarniisist, mis aja jooksul edasi suurenedes võib ulatuda lõheava teise servani, moodustades loodusliku silla.

Lumesild võib aja jooksul täielikult katta lõhe ava ja kujutab endast seetõttu ohtu, sest loob illusiooni katkematust lumeväljast, varjates samal ajal lumekihi paksust, mis võib osutuda väga õhukeseks.

Kuna lumesild on lõheserva lähedal palju paksem kui keskosas, siis lumesilla ületamisel toimub silla varisemine reeglina servast eemal ja keskpaigale lähemal.

Lumesilla varisemise tõttu hukkusid 2015. aastal kolm Eesti alpinisti Tocllaraju mäel Andides.

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Lumesild
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