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Shrub Resiliency; Number of Disturbance Events Per 15 Year Intervals Since 1975

Count of short return interval fires (within 15 years) across southern CA (1950-2019) that can be used to identify sites that have experienced frequent fire (e.g. more than one fire within a 15 year period) that could lead to vegetation-type conversion.

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Miền Giá trị
Phiên bản Version 5.0
Last Updated Tháng 3 25, 2025, 23:30 (UTC)
Được tạo ra Tháng 3 3, 2025, 00:26 (UTC)
category /Forest and Shrubland Resilience/Disturbance
collection_name California Landscape Metrics
creation_method Counts were aggregated from the CalFire state fire perimeter dataset using a moving time window of 15 years, which has been identified as a minimum threshold for chaparral or coastal sage scrub recovery after fire. Areas with more frequent fires within a 15-year window could result in decreased chaparral or coastal sage scrub recovery and increased occurrence of invasive species. Counts of 0 indicate a site experienced a single fire but no repeat fires within the 15-yr moving window. Counts of 1 to 9 indicate the number of fires beyond the initial event that recurred at the same pixel within the 15-yr moving window. Data can be used to identify sites that are likely to experience vegetation-type conversion. Source: Conlisk, E., A.D. Syphard, E. Storey, K. West, C. Ross, M.K. Jennings, D. Stow. 2021. Connecting Wildlands and Communities Research Team; San Diego State University
data_units A count metric indicating the number of times each site (at the pixel level) met a threshold of a 15year firereturn interval from 1950 to 2019.
data_vintage 2019
date_updated August 2024
element Disturbance
file_name SoCal_ShrubResil_19502019_202312_T2_v5
format GeoTiff
maximum_value 9.0
metric_definition_and_relevance Count of short return interval fires (within 15 years) across southern CA (1950-2019) that can be used to identify sites that have experienced frequent fire (e.g. more than one fire within a 15 year period) that could lead to vegetation-type conversion.
minimum_value 0.0
pillar Forest and Shrubland Resilience
spatial {"type": "Polygon", "coordinates": [[[-120.67706739598721, 32.497392021155406], [-115.77460546520076, 32.497392021155406], [-115.77460546520076, 35.287756305833], [-120.67706739598721, 35.287756305833], [-120.67706739598721, 32.497392021155406]]]}
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