Pulsarby Business Nebula

Glacial

15 animations

CSS Data mark4.8–5.6s cycle

Accumulation stake
The snow surface builds against a graduated stake in four surveyed steps, cutting a mark at each, then melts back to the datum.
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Albedo fraction
A segmented meter holds the fraction of light a snow surface returns, decaying as the surface ages and recovering on fresh snowfall.
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Borehole profile
A temperature log is run up a borehole, sitting on the dashed geothermal gradient at depth and leaving it for the warm side near the surface.
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Core layer count
An ice-core section is read downward as time while a depth cursor steps from one annual band to the next and a tally records the years.
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Depth-age scale
A crosshair rides the depth-age calibration curve from the surface down, the same step in depth buying an ever larger step in age as the curve flattens.
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Discharge gate
Marks travel along five flow lines at speeds set by the velocity profile and cross a flux gate whose profile bars hold the same numbers.
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Dust tie point
A dust flux log draws down the depth axis until one spike runs past the threshold rule and is flagged as a dating tie point.
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Equilibrium line
The equilibrium-line rule climbs a glacier long-profile while the snowline marker rides up the surface and the accumulation-area ratio bar shortens.
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Isotope ratio
A delta-O-18 trace is logged down a depth axis, swinging either side of the baseline as it records colder and warmer intervals.
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Mass balance
Accumulation grows above the datum and ablation below it while the net rule settles at the difference, crossing the datum between a positive and a negative year.
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Proxy reconstruction
Scattered proxy points are taken up left to right and the dashed uncertainty envelope closes on the fitted reconstruction as each one lands.
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Record gap
A scan crosses a series with a missing interval, the reconstruction bridging the gap with a dashed span while the error bar opens to its full envelope.
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Seasonal extent
A year of ice extent is plotted round a dial against the climatological rings, with a hand sweeping the year and a rider stepping month to month along the trace.
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Thaw front
A thaw front descends through a ground column, opening the active layer behind it and flagging the moment it passes a marked reference depth.
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Trapped gas
A sampling window steps along an ice section and each enclosed bubble adds a riser to the concentration step plot above it.
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