Ikigai Daily
WonderPaleoclimate fact1,794 of 1,961

Milankovitch cycles—changes in orbital shape, axial tilt and wobble—alter the seasonal and geographic distribution of sunlight and help pace long-term glacial cycles.

The orbit's long metronome

ClimateSpaceScience

Why it matters

The idea in context

Eccentricity, obliquity and precession unfold over tens to hundreds of thousands of years. Their importance lies less in changing total sunlight than in redistributing it by latitude and season, especially affecting whether northern snow survives summer. They explain ancient climate pacing; they do not explain the rapid modern warming driven by greenhouse gases.

Türkçe

Aynı kart, başka bir dilde.

Milankoviç döngüleri—yörünge biçimi, eksen eğikliği ve yalpalamadaki değişimler—güneş ışığının mevsimsel ve coğrafi dağılımını değiştirerek uzun buzul döngülerinin temposuna katkıda bulunur.
Yörüngenin uzun metronomu

Dış merkezlik, eksen eğikliği ve devinim on binlerce ila yüz binlerce yılda işler. Önemleri toplam ışığı değiştirmekten çok onu enlem ve mevsimlere yeniden dağıtmalarında, özellikle kuzey karının yazı atlatıp atlatmamasını etkilemelerindedir. Kadim iklim temposunu açıklarlar; sera gazlarının sürüklediği hızlı çağdaş ısınmayı açıklamazlar.

Source trail

Read beyond the card.

Background reading: Milankovitch cyclesAttribution and context are revised when stronger evidence appears. Corrections are welcome through the editorial page.
Open in the iPhone appEditorial method

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