Matt Long (Oct 28 2020 at 15:16): Matt Long (Oct 28 2020 at 15:16):This project aims to understand the impacts of volcanos and variations in atmospheric pCO2 on air-sea CO2 fluxes.
From our funded NSF proposal:
Hypothesis 1: Trends in surface fluxes and interior distributions of anthropogenic carbon and oxygen since the 1990s have been significantly impacted by Mt. Pinatubo.
Hypothesis 2: After the initial uptake anomaly due to Mt. Pinatubo, thermocline anomalies that are cool and anomalously high in tracers return to the surface. These anomalies suppress air-to-sea fluxes for up to a decade after the eruption.
Hypothesis 3: By including the seasonal cycle and latitudinal distribution of atmospheric pCO2 in simulations, variability of the globally integrated air-sea carbon flux is increased and becomes more comparable to observationally-based estimates.
We planning to replicate a period of the CESM1-LE spanning the 1991 Mt Pinatubo eruption, censoring the volcanic aerosol forcing from this event. By comparing these runs with the full CESM-LE, we aim to quantify the effects the Mt. Pinatubo eruption explicitly.
Repository for developing these runs:
https://github.com/matt-long/pinatubo-LE
Last updated: May 16 2025 at 17:14 UTC