NOAA/WDS Paleoclimatology - Farris fire data from Cow Head - IMPD USCH0001

Modern fire records and fire-scarred remnant material collected from logs, snags, and stumps were used to reconstruct and analyze fire history in the mixed-conifer and pine forest above 2300 m within the Rincon Mountain Wilderness of Saguaro National Monument, Arizona, United States. Cross-dating of the remnant material allowed dating of fire events to the calendar year. Estimates of seasonal occurrence were compiled for larger fires. It was determined that the fire regime was dominated by large scale (> 200 ha), early-season (May–July) surface fires. The mean fire interval over the Mica Mountain study area for the period 1657–1893 was 6.1 years with a range of 1–13 years for larger fires. The mean fire interval for the mixed-conifer forest type (1748–1886) was 9.9 years with a range of 3–19 years. Thirty-five major fire years between 1700 and 1900 were compared with a tree-ring reconstruction of the Palmer drought severity index (PDSI). Mean July PDSI for 2 years prior to fires was higher (wetter) than average, while mean fire year PDSI was near average. This 490-year record of fire occurrence demonstrates the value of high-resolution (annual and seasonal) tree-ring analyses for documenting and interpreting temporal and spatial patterns of past fire regimes.

本存档古气候学研究数据集由美国国家海洋和大气管理局（National Oceanic and Atmospheric Administration, NOAA）下属的国家环境信息中心（National Centers for Environmental Information, NCEI）提供，收录于古气候学世界数据服务中心（World Data Service for Paleoclimatology, WDS）。该研究对应的NCEI分类类型为火灾（Fire）。数据集包含火灾历史相关参数（火疤痕年代），地理覆盖范围为美利坚合众国亚利桑那州（Arizona）。其时间覆盖区间为距今（before present, BP）255年至6年的日历年代。如需了解参数与研究地点的详细信息，请查阅元数据（metadata）文档。使用本数据集时，请引用该研究。