Four sediment cores from meadows adjacent to giant sequoia groves in California's Sierra Nevada provide a 10,000-year record of fire history and forest composition changes. The project, part of the Sierra Nevada Global Change Research Program, calibrated sedimentary charcoal and pollen data against annual-resolution tree-ring fire histories from the same sites. This data was collected and last updated in 1998.
Use Cases
- Calibrate sedimentary charcoal records against annual-resolution fire histories from tree-ring data at specific grove sites.
- Analyze changes in forest composition over millennia using pollen data from sediment cores.
- Compare long-term fire regime variability across four distinct grove locations in the Sierra Nevada.
- Provide baseline disturbance data for testing forest dynamics models against a 10,000-year historical record.
Strengths
- 10,000-year temporal coverage for fire history and forest composition.
- Data calibrated against multi-millennial, annual-resolution tree-ring records from four specific sites.
- Four sediment cores provide multi-site comparison within the Sierra Nevada region.
Limitations
- Small sample size of four sediment cores limits spatial representation.
- Data is temporally stale, with no updates since 1998.
- Unknown row count and specific column details restrict immediate analytical utility.
Provenance
- Source
- Sierra Nevada Global Change Research Program (SNGCRP), CEOS_EXTRA.
- Collection Method
- High-precision carbon dating of charcoal and pollen from four collected sediment cores.
- Time Range
- Approximately 10,000 years into the past.
- Freshness
- 1998-09-30
- Geography
- Meadows adjacent to Giant Forest (Sequoia NP), Mountain Home Grove, Mariposa Grove (Yosemite NP), and Big Stump Grove (Kings Canyon NP), Sierra Nevada, California, USA.