Yamamoto, Masanobu (2021): Tropical Western Pacific hydrology during the last 6,000 years based on wildfire charcoal records from Borneo [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.934142
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Abstract:
The forcing of multi-centennial climate variability in the Western Pacific Warm Pool (WPWP) region is not fully understood. Here we generated 6-ky long continuous charcoal records from five peatlands in Borneo. Every several hundred years, peaks of charcoal influx were identified in the composite record, indicating that the peatlands repeatedly experienced dry conditions and wildfires. Major fire events were identified at ~5.4, 4.7, 4.4, 3.7, 3.2, 2.7, 2.4, 2.2, 1.7, 1.1, 0.6 and 0.3 ka. Most of these coincided with the maxima of Borneo speleothem δ18O, and occurred in the high solar activity periods following the solar minima. This suggests that the higher solar activity decreased rainfall, increasing dryness and wildfire frequency. This result challenges the hypothesis that high solar activity intensifies atmospheric convection in the WPWP area.
Project(s):
JSPS KAKENHI (KAKENHI)
Funding:
Coverage:
Median Latitude: 3.143499 * Median Longitude: 113.156364 * South-bound Latitude: 1.481622 * West-bound Longitude: 111.173972 * North-bound Latitude: 4.212133 * East-bound Longitude: 114.260706
Minimum Elevation: -12.0 m * Maximum Elevation: -10.0 m
Event(s):
Parameter(s):
| # | Name | Short Name | Unit | Principal Investigator | Method/Device | Comment |
|---|---|---|---|---|---|---|
| 1 | Event label | Event | Yamamoto, Masanobu | |||
| 2 | Binary Object | Binary | Yamamoto, Masanobu | |||
| 3 | Binary Object (Media Type) | Binary (Type) | Yamamoto, Masanobu | |||
| 4 | Binary Object (File Size) | Binary (Size) | Bytes | Yamamoto, Masanobu |
License:
Creative Commons Attribution 4.0 International (CC-BY-4.0)
Status:
Curation Level: Basic curation (CurationLevelB)
Size:
5 data points