noaa-fire-21571 Yocom fire data from Mesa Acuña, Sierra Madre Oriental, Nuevo León, Mexico - IMPD MXMA-001 Yocom, L.L.; Fulé, P.Z. Yocom fire data from Mesa Acuña, Sierra Madre Oriental, Nuevo León, Mexico - IMPD MXMA-001 2017-03-03 NCDC-Paleoclimatology ONLINE Files Pending https://www.ncdc.noaa.gov/paleo/study/21571 Investigator L.L. Yocom Investigator P.Z. Fulé earth science paleoclimate fire history|tree ring tree demographic and injury and fire event code,wood,null,null,null,fire history|tree ring,null,null,C,FHX2 data format; refer to IMPD documentation for description of codes earth science paleoclimate fire history|tree ring age,null,null,null,null,fire history|tree ring,null,null,N,null earth science paleoclimate fire history fire scar dates geoscientificInformation PIHR Pinus hartwegii Lindl. Mexican Mountain pine PSME Pseudotsuga menziesii (Mirb.) Franco Douglas-fir 1526 AD 2006 AD 424 cal yr BP -56 cal yr BP Complete 23.78 23.78 -99.86 -99.86 3200 3200 Continent North America Mexico Mesa Acuña>LATITUDE 23.78>LONGITUDE -99.86 None Please cite original publication, online resource, dataset and publication DOIs (where available), and date accessed when using downloaded data. If there is no publication information, please cite investigator, title, online resource, and date accessed. The appearance of external links associated with a dataset does not constitute endorsement by the Department of Commerce/National Oceanic and Atmospheric Administration of external Web sites or the information, products or services contained therein. For other than authorized activities, the Department of Commerce/NOAA does not exercise any editorial control over the information you may find at these locations. These links are provided consistent with the stated purpose of this Department of Commerce/NOAA Web site. English DOC/NOAA/NESDIS/NCEI National Centers for Environmental Information, NESDIS, NOAA, U.S. Department of Commerce https://www.ncdc.noaa.gov/data-access/paleoclimatology-data DATA Center Contact Bruce Bauer bruce.a.bauer@noaa.gov paleo@noaa.gov 303-497-6280 303-497-6513

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Boulder CO 80305-3328 USA online ASCII Yocom, L.L., P.Z. Fulé, P.M. Brown, J. Cerano, J. Villanueva-Díaz, D.A. Falk, and E. Cornejo-Oviedo 2010 Ecosphere 91 1660-1671 http://www.jstor.org/stable/25680407 Yocom Kent, L.L., P.Z. Fulé, P.M. Brown, J. Cerano, E. Cornejo-Oviedo, C. Cortés Montaño, S.A. Drury, D.A. Falk, J. Meunier, H.M. Poulos, C.N. Skinner, S.L. Stephens, J. Villanueva-Díaz 2017 Ecosphere 3 8 Article e01709

The occurrence of wildfire is influenced by a suite of factors ranging from “top-down” influences (e.g., climate) to “bottom-up” localized influences (e.g., ignitions, fuels, and land use). We carried out the first broad-scale assessment of wildland fire patterns in northern Mexico to assess the relative influence of top-down and bottom-up drivers of fire in a region where frequent fire regimes continued well into the 20th century. Using a network of 67 sites, we assessed (1) fire synchrony and the scales at which synchrony is evident, (2) climate drivers of fire, and (3) asynchrony in fire regime changes. We found high fire synchrony across northern Mexico between 1750 and 2008, with synchrony highest at distances <400 km. Climate oscillations, especially El Niño-Southern Oscillation, were important drivers of fire synchrony. However, bottom-up factors modified fire occurrence at smaller spatial scales, with variable local influence on the timing of abrupt, unusually long fire-free periods starting between 1887 and 1979 CE. Thirty sites lacked these fire-free periods. In contrast to the neighboring southwestern United States, many ecosystems in northern Mexico maintain frequent fire regimes and intact fire–climate relationships that are useful in understanding climate influences on disturbance across scales of space and time. STUDY NOTES: This site was sampled as part of a project to reconstruct historical fire regimes in northeastern Mexico. Ring-boundary fire scars were assigned to the subsequent calendar year. Fire History Graphs: Fire History Graphs illustrate specific years when fires occurred and how many trees were scarred. They are available in both PDF and PNG formats. The graphs consist of 2 parts, both of which show the X axis (time line) at the bottom with the earliest year of information on the left and the latest on the right. The Fire Index Plot is the topmost plot, and shows two variables: sample depth (the number of recording trees in each year) as a blue line along the left Y axis, compared with the percent trees scarred shown as gray bars along the right Y axis. Below, the Fire Chronology Plot consists of horizontal lines representing injuries by year on individual sampled trees. Symbols are overlain that denote the years containing the dendrochronologically-dated fire scars or injuries. The sample ID of each tree is displayed to the right of each line. The Composite Axis below represents the composite information from all individual series. The symbols used to represent the fire scars or injuries, and the filters used to determine the composite information, are shown in the legend. These graphs were created using the Fire History Analysis and Exploration System (FHAES). See http://www.fhaes.org for more information.

GET DATA https://www1.ncdc.noaa.gov/pub/data/paleo/firehistory/firescar/northamerica/mxma-001.txt More Informaiton; mxma-001.txt GET DATA https://www1.ncdc.noaa.gov/pub/data/paleo/firehistory/firescar/northamerica/fire-hist-graphs/mxma-001-fire-hist-graph.pdf Fire History Graph; mxma-001-fire-hist-graph.pdf GET DATA https://www1.ncdc.noaa.gov/pub/data/paleo/firehistory/firescar/northamerica/fire-hist-graphs/mxma-001-fire-hist-graph.png Fire History Graph; mxma-001-fire-hist-graph.png GET DATA https://www1.ncdc.noaa.gov/pub/data/paleo/firehistory/firescar/northamerica/mxma-001.fhx Fire Scar Data; mxma-001.fhx USA/NOAA DIF Version 9.8.4 2018-12-11 2018-12-11