HYOURAKU

CRYOSPHERE

From glacier dynamics to ice-albedo feedback and ice cores — understand the science of Earth's ice by watching and interacting. An iOS / Android education app.

Flutter iOS Android License

Modules

01 / GLACIER DYNAMICS

Glacier Dynamics

Move temperature and accumulation to shift the ELA and mass balance. Watch the terminus of solid-yet-flowing ice advance and retreat.

02 / ICE-ALBEDO

Ice-Albedo Feedback

"Less ice -> lower albedo -> more heat -> even less ice." Experience the abrupt tipping that happens past a threshold.

03 / ICE CORE

Ice Core & Paleoclimate

Drag the core into the past and read each layer's bubble CO₂ and isotope temperature. See glacials and interglacials move together.

04 / PERMAFROST

Permafrost

Warming deepens the active layer; thawing permafrost releases CO₂ and methane — a carbon feedback shown in a soil cross-section.

05 / SNOW CRYSTALS

Snow Crystals

Temperature and supersaturation set the crystal shape (Nakaya diagram): plates, columns, needles, dendrites in six-fold symmetry.

06 / SEA LEVEL

Sea Level Rise

Ice-sheet and glacier melt raise the sea and flood a coastal city. Connected to sea-level rise in KAIRAKU.

Series

Connected to KAIRAKU through sea ice, thermohaline circulation, and sea-level rise. Learn the poles, then the ocean.