Glaciar Hektoria estabelece recorde moderno de recuo rápido

O Glaciar Hektoria, na Antártida, perdeu 24 quilômetros de extensão em apenas 15 meses, marcando o recuo mais rápido de gelo ancorado observado nos tempos modernos. O colapso ocorreu entre o início de 2022 e a primavera de 2023 no leste da Península Antártica.

O rápido recuo do glaciar começou após o colapso da plataforma de gelo Larsen B em 2002, que removeu uma barreira estabilizadora. Em janeiro de 2022, o gelo marinho fixo na baía se rompeu, permitindo que a língua de gelo flutuante sofresse calvagem repetidamente durante o verão austral e recuasse cerca de 16 quilômetros. O glaciar estabilizou brevemente durante o inverno de 2022, mas continuou a sofrer afinamento abaixo da superfície.

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