Reef “bathtub” model

How it works →

All parameters

Lagoon tint middle = no tint = same as the ocean

Organic carbon

mmol C m⁻² h⁻¹ — which way is CO₂ moving?

Calcium carbonate

mmol CaCO₃ m⁻² h⁻¹ — is the reef building or losing?

Heat

W m⁻² — is the lagoon gaining or losing heat?

Temperature in the lagoon

dashed line = the ocean value · blue bands = lagoon isolated · grey = night

Time

—

Lagoon depth

—

Temperature

—

Ω aragonite

—

Link to the ocean

—

Aragonite saturation state Ω_ar

dimensionless

pH (total scale)

total scale

Temperature

°C

Alkalinity and DIC

µmol kg⁻¹

Seawater pCO₂

µatm

Water depth and offshore sea level

m above lagoon floor

Exchange rate with the ocean

h⁻¹ (0 = isolated)

Reef “bathtub” model

Organic carbon

Calcium carbonate

Heat

Temperature in the lagoon

Daily temperature range over the whole run

Daily Ω_ar range over the whole run

Aragonite saturation state Ω_ar

pH (total scale)

Temperature

Alkalinity and DIC

Seawater pCO₂

Water depth and offshore sea level

Exchange rate with the ocean

Organic carbon

Calcium carbonate

Heat

Temperature in the lagoon

Daily temperature range over the whole run

Daily Ωar range over the whole run

Aragonite saturation state Ωar

pH (total scale)

Temperature

Alkalinity and DIC

Seawater pCO₂

Water depth and offshore sea level

Exchange rate with the ocean

Daily Ω_ar range over the whole run

Aragonite saturation state Ω_ar