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sci.sea-level-thermal-expansion Calculator
Calculates thermal sea level rise from ocean heat content increase using steric expansion coefficient α ≈ 1.6 × 10⁻⁴ K⁻¹ for the mixed layer. Ocean heat content increased by 250 × 10²¹ J since 1970 — translated to sea level rise, thermal expansion is ≈ 1 mm per 10²² J of ocean heating.
Inputs
Delta T C
Reference formula or conversion factor shown for context.
Ocean Depth M
Vertical extent downward, or thickness of a layer. For tanks: affects pressure at the base (P = ρgh).
Alpha Per C
Reference formula or conversion factor shown for context.
Results
thermosteric sea level rise (mm)
The measured or computed level on the applicable scale.
thermosteric sea level rise (cm)
The measured or computed level on the applicable scale.
SLR = α · ΔT · d
Reference formula or conversion factor shown for context.
α for seawater near 20°C
The value at the specified point or condition.
historical context
Sample size or count used in the calculation.
total SLR by 2100 (IPCC)
The combined total across all inputs and components.