# Calder fire data from Hidden Lake, Colorado - IMPD USPHD001 #----------------------------------------------------------------------- # World Data Center for Paleoclimatology, Boulder # and # NOAA Paleoclimatology Program #----------------------------------------------------------------------- # NOTE: Please cite original publication, online resource and date accessed when using this data. # If there is no publication information, please cite Investigator, title, online resource and date accessed. # # Description/Documentation lines begin with # # Data lines have no # # # Online_Resource: http://www.ncdc.noaa.gov/paleo/study/19362 # Online_Resource: http://www1.ncdc.noaa.gov/pub/data/paleo/firehistory/charcoal/northamerica/usphd001.txt # Archive: Fire History # # Parameter_Keywords: charcoal sediment #--------------------------------------- # Contribution_Date # Date: 2015-09-16 #--------------------------------------- # Title # Study_Name: Calder fire data from Hidden Lake, Colorado - IMPD USPHD001 #--------------------------------------- # Investigators # Investigators: Calder, John, W.; Stopka, Cody; Parker, Dusty; Jiménez-Moreno, Gonzalo; Shuman, Bryan, N. #--------------------------------------- # Description and Notes # Description: # Chronolgy and macroscopic charcoal counts (number of pieces >125 microns) from Hidden Lake near the Mount Zirkel Wilderness Area, Colorado # Provided Keywords: fire climate, warming # Calder et al. includes datasets for twelve sites, including the one documented here. A list of all dataset site names and URLs follow: # Lake Eileen http://www1.ncdc.noaa.gov/pub/data/paleo/firehistory/charcoal/northamerica/uselk001.txt # Gem Lake http://www1.ncdc.noaa.gov/pub/data/paleo/firehistory/charcoal/northamerica/usgem001.txt # Gold Creek Lake http://www1.ncdc.noaa.gov/pub/data/paleo/firehistory/charcoal/northamerica/usgcr001.txt # Hidden Lake near Mount Zirkel Wilderness Area http://www1.ncdc.noaa.gov/pub/data/paleo/firehistory/charcoal/northamerica/usphd001.txt # Hinman Lake http://www1.ncdc.noaa.gov/pub/data/paleo/firehistory/charcoal/northamerica/usphn001.txt # Middle Rainbow Lake http://www1.ncdc.noaa.gov/pub/data/paleo/firehistory/charcoal/northamerica/usprb001.txt # Round Lake near Mount Zirkel Wilderness Area http://www1.ncdc.noaa.gov/pub/data/paleo/firehistory/charcoal/northamerica/usprd001.txt # Seven Lakes http://www1.ncdc.noaa.gov/pub/data/paleo/firehistory/charcoal/northamerica/uspsv001.txt # Summit Lake near Mount Zirkel Wilderness Area http://www1.ncdc.noaa.gov/pub/data/paleo/firehistory/charcoal/northamerica/ussbw001.txt # Teal Lake http://www1.ncdc.noaa.gov/pub/data/paleo/firehistory/charcoal/northamerica/usptl001.txt # Tiago Lake http://www1.ncdc.noaa.gov/pub/data/paleo/firehistory/charcoal/northamerica/ustig001.txt # Whale Lake http://www1.ncdc.noaa.gov/pub/data/paleo/firehistory/charcoal/northamerica/uspwl001.txt # # Contact person: Calder, John # Sample storage location: University of Wyoming # Sampling date: 6/24/2005 # Site size(ha): 3.8 # State/Province: Colorado # Water depth(cm): 660 # Sampling device: Modified Livingston with a polycarbonate tube # Analysis method: Macroscopic charcoal counts - see Calder et al. 2015 for details #--------------------------------------- # Publication # Authors: Calder, W. John; Stopka, Cody; Parker, Dusty; Jiménez-Moreno, Gonzalo; Shuman, Bryan # Published_Date_or_Year: 2015 # Published_Title: Medieval Warming initiated exceptionally large wildfire outbreaks in the Rock Mountains # Journal_Name: Proceedings of the National Academy of Sciences # Volume: # Issue: # Pages: # Report Number: # DOI: 10.1073/pnas.1500796112 # Abstract: Many of the largest wildfires in US history burned in recent decades, and climate change explains much of the increase in area burned. The frequency of extreme wildfire weather will increase with continued warming, but many uncertainties still exist about future fire regimes, including how the risk of large fires will persist as vegetation changes. Past fire-climate relationships provide an opportunity to constrain the related uncertainties, and reveal widespread burning across large regions of western North America during past warm intervals. Whether such episodes also burned large portions of individual landscapes has been difficult to determine, however, because uncertainties with the ages of past fires and limited spatial resolution often prohibit specific estimates of past area burned. Accounting for these challenges in a subalpine landscape in Colorado, we estimated century-scale fire synchroneity across 12 lakesediment charcoal records spanning the past 2,000 y. The percentage of sites burned only deviated from the historic range of variability during the Medieval Climate Anomaly (MCA) between 1,200 and 850 y B.P., when temperatures were similar to recent decades. Between 1,130 and 1,030 y B.P., 83% (median estimate) of our sites burned when temperatures increased ~0.5 degrees C relative to the preceding centuries. Lake-based fire rotation during the MCA decreased to an estimated 120 y, representing a 260% higher rate of burning than during the period of dendroecological sampling (360 to -60 y B.P.). Increased burning, however, did not persist throughout the MCA. Burning declined abruptly before temperatures cooled, indicating possible fuel limitations to continued burning. #--------------------------------------- # Funding_Agency # Funding_Agency_Name: National Science Foundation # Grant: BCS-0845129 #--------------------------------------- # Site Information # Site_Name: Hidden Lake near Mount Zirkel Wilderness Area # Location: Colorado # Country: United States of America # Northernmost_Latitude: 40.504 # Southernmost_Latitude: 40.504 # Easternmost_Longitude: -106.607 # Westernmost_Longitude: -106.607 # Elevation: 2704 #--------------------------------------- # Data_Collection # Collection_Name: USPHD001 CHAR # First_Year: 2175.5 # Last_Year: -54 # Time_Unit: cal yr BP # Core_Length: # Notes: Core was extracted in -55 BP but the Bayesian based age model (see Calder et al. 2015 for age model details) would sometimes ascribe the previous year as the median age, hence the youngest age is -54 and not -55 #--------------------------------------- # Chronology: # Core was extracted in -55 BP but the R package, Bchron, that generated the age model (see Calder et al. 2015 for age model details) would sometimes ascribe the previous year as the median age, hence the youngest age is -54 and not -55 in the charcoal data # Depth (cm) Lab Number Material Age (14C BP +/-1Sigma ) # 0 Sediment surface # 50-51 UCIAMS-24267 Bulk sediment (14C) 1005+/-20 # 99-100 UCIAMS-24268 Bulk sediment (14C) 2145+/-20 # 155-156 UCIAMS-24273 Charcoal 2815+/-25 # #--------------------------------------- # Variables # Data variables follow that are preceded by "##" in columns one and two. # Variables list, one per line, shortname-tab-longname components (9 components: what, material, error, units, seasonality, archive, detail, method, C or N for Character or Numeric data) ## depth-cm-top depth,,,cm,,,top depth,,N ## depth-cm-bottom depth,,,cm,,,bottom depth,,N ## age-calBP-top age,,,calendar years BP,,Fire History,top of sample,,N ## age-calBP-bottom age,,,calendar years BP,,Fire History,top of sample,,N ## vol-wetsed volume,wet sediment,,ml,,Fire History,used for charcoal counts,,N ## char>125um charcoal,,,counts,,Fire History,>125um,,N #------------------------ # Data # Data lines follow (have no #) # Data line format - tab-delimited text, variable short name as header # Missing Value: n/a depth-cm-top depth-cm-bottom age-calBP-top age-calBP-bottom vol-wetsed char>125um 0 1 -54 -34 1 0 1 2 -34 -15 1 2 2 3 -15 5 1 9 3 4 5 25 1 7 4 5 25 44 1 6 5 6 44 64 1 1 6 7 64 84 1 2 7 8 84 103 1 1 8 9 103 123 1 1 9 10 123 143 1 3 10 11 143 162 1 1 11 12 162 182 1 5 12 13 182 202 1 5 13 14 202 221 1 5 14 15 221 241 1 2 15 16 241 261 1 6 16 17 261 280 1 6 17 18 280 300 1 1 18 19 300 320 1 8 19 20 320 339 1 3 20 21 339 359 1 4 21 22 359 379 1 3 22 23 379 398 1 4 23 24 398 418 1 1 24 25 418 438 1 0 25 26 438 457 1 3 26 27 457 477 1 3 27 28 477 496 1 2 28 29 496 516 1 5 29 30 516 536 1 4 30 31 536 555 1 14 31 32 555 575 1 23 32 33 575 595 1 25 33 34 595 614 1 20 34 35 614 634 1 9 35 36 634 653.5 1 0 36 37 653.5 673 1 8 37 38 673 693 1 2 38 39 693 712 1 4 39 40 712 732 1 4 40 41 732 752 1 4 41 42 752 771 1 2 42 43 771 791 1 0 43 44 791 811 1 1 44 45 811 830 1 1 45 46 830 850 1 2 46 47 850 870 1 2 47 48 870 890 1 2 48 49 890 909 1 1 49 50 909 930 1 5 50 51 930 956 1 7 51 52 956 980 1 8 52 53 980 1005 1 24 53 54 1005 1029.5 1 8 54 55 1029.5 1054 1 1 55 56 1054 1079 1 0 56 57 1079 1103 1 2 57 58 1103 1128 1 16 58 59 1128 1152 1 3 59 60 1152 1176 1 4 60 61 1176 1200 1 5 61 62 1200 1225 1 2 62 63 1225 1249 1 5 63 64 1249 1273 1 11 64 65 1273 1298 1 4 65 66 1298 1323 1 1 66 67 1323 1347 1 4 67 68 1347 1372 1 5 68 69 1372 1396 1 6 69 70 1396 1420 1 7 70 71 1420 1445 1 21 71 72 1445 1469 1 6 72 73 1469 1494 1 4 73 74 1494 1519 1 4 74 75 1519 1543 1 0 75 76 1543 1567.5 1 2 76 77 1567.5 1592 1 5 77 78 1592 1617 1 7 78 79 1617 1641 1 18 79 80 1641 1666 1 21 80 81 1666 1690 1 6 81 82 1690 1715 1 8 82 83 1715 1739 1 0 83 84 1739 1764 1 2 84 85 1764 1788 1 2 85 86 1788 1813 1 2 86 87 1813 1837 1 1 87 88 1837 1861 1 2 88 89 1861 1886 1 3 89 90 1886 1911 1 14 90 91 1911 1935 1 13 91 92 1935 1959 1 4 92 93 1959 1984 1 2 93 94 1984 2008 1 1 94 95 2008 2033 1 5 95 96 2033 2056 1 27 96 97 2056 2081 1 5 97 98 2081 2106 1 5 98 99 2106 2131 1 3 99 100 2131 2148 1 5 100 101 2148 2162 1 5 101 102 2162 2175.5 1 2