Table 1. Climate responses.
Approach used to compute the climate response to different LGM boundary conditions. First column identifiers are used throughout the study to identify each climate response. The third column is the operation between climatologies used to compute each climate response. See tables S3 and S4 for a list of simulations. PI, preindustrial; GHG, greenhouse gases; ITF, Indonesia throughflow; SL, sea level; MC, Maritime Continent.
|
Response identifier |
Climate response to | Simulation difference |
| Sunda | Exposure of the Sunda shelf due to LGM sea level. | LGMSUNDA − PI |
| Sahul | Exposure of the Sahul shelf due to LGM sea level. | LGMSAHUL − PI |
| Sunda + Sahul | Exposure of the Sunda and Sahul shelves due to LGM sea level. | LGMSUNDA+SAHUL − PI |
| SLMC | Effect of LGM SL on: exposure of the Sunda and Sahul shelves, routing of the Indonesian throughflow, and tidal mixing in the MC region. |
LGMSL − PI |
| SLMC + GHG + orbit |
LGM sea level, GHG concentrations, and orbital configuration. | LGMSL+GHG+ORB − PI |
| GHG | LGM GHG concentrations (relative to PI climate). | LGMGHG − PI |
| IS | Ice sheet elevation and albedo plus effect of sea level outside the MC region. | LGMICE − PI |
| IStopo | Ice sheet albedo (relative to LGM ice sheet elevation). | LGMTOPO − PI |
| ISalbedo | Ice sheet albedo (relative to LGM ice sheet elevation). | LGMICE − LGMTOPO |
| ISalbedo + SLMC | Ice sheet albedo plus effect of sea level over the MC region (shelf exposure, ITF passages, and tidal mixing). | LGMICE+SL − LGMTOPO |
| LGM | Full LGM response. | LGM − PI |