noaa-fire-19922 eng; USA utf8 dataset Bauer, Bruce DOC/NOAA/NESDIS/NCEI > National Centers for Environmental Information, NESDIS, NOAA, U.S. Department of Commerce +1 303-497-6280 +1 303-497-6513 325 Broadway, E/CC23 Boulder CO 80305-3328 USA paleo@noaa.gov pointOfContact 2018-12-11 ISO 19115-2 Geographic Information - Metadata - Part 2: Extensions for Imagery and Gridded Data ISO 19115-2:2009(E) NOAA/WDS Paleoclimatology - Dunnette fire data from Chickaree Lake, Rocky Mountain National Park, Colorado - IMPD USCHK001 2015-03-28 publication noaa-fire-19922 NCEI DSI 1200_01 Dunnette, P.V. originator Dunnette, P.V. author Higuera, P.E. originator Higuera, P.E. author McLauchlan, K.K. originator McLauchlan, K.K. author Derr, K.M. originator Derr, K.M. author Briles, C.E. originator Briles, C.E. author Keffe, M.H. originator Keffe, M.H. author NOAA National Centers for Environmental Information publisher tableDigital This archived Paleoclimatology Study is available from the NOAA National Centers for Environmental Information (NCEI), under the World Data Service (WDS) for Paleoclimatology. The associated NCEI study type is Fire. The data include parameters of fire history|paleolimnology with a geographic location of Colorado, United States Of America. The time period coverage is from 4508 to -60 in calendar years before present (BP). See metadata information for parameter and study location details. Please cite this study when using the data. Records of past fire occurrence from tree rings, charcoal found in lake sediments, and other proxies. Parameter keywords describe what was measured in this dataset. Additional summary information can be found in the abstracts of papers listed in the dataset citations. Additional information on the International Multiproxy Database (IMPD) dataset procedures are also available. completed Bauer, Bruce DOC/NOAA/NESDIS/NCEI > National Centers for Environmental Information, NESDIS, NOAA, U.S. Department of Commerce +1 303-497-6280 +1 303-497-6513 325 Broadway, E/CC23 Boulder CO 80305-3328 USA paleo@noaa.gov pointOfContact https://www.ncdc.noaa.gov/c/images/pc-default-fire.png Paleoclimatology - Fire History PNG Earth Science > Climate Indicators > Paleoclimate Indicators > Land Records > Fire History theme Global Change Master Directory (GCMD) Science Keywords 2018 revision Version 8.6 Global Change Data Center, Science and Exploration Directorate, Goddard Space Flight Center (GSFC) National Aeronautics and Space Administration (NASA) https://earthdata.nasa.gov/about/gcmd/global-change-master-directory-gcmd-keywords HTTPS Web Browser Global Change Master Directory (GCMD) Keywords The information provided on this page seeks to define how the GCMD Keywords are structured, used and accessed. It also provides information on how users can participate in the further development of the keywords. information publisher earth science > paleoclimate > fire history|paleolimnology earth science > paleoclimate > fire history|paleolimnology earth science > paleoclimate > fire history|paleolimnology earth science > paleoclimate > fire history|paleolimnology earth science > paleoclimate > fire history|paleolimnology earth science > paleoclimate earth science > paleoclimate > fire history|paleolimnology earth science > paleoclimate > fire history|paleolimnology earth science > paleoclimate > fire history|paleolimnology earth science > paleoclimate > fire history|paleolimnology earth science > paleoclimate > fire history|paleolimnology earth science > paleoclimate > fire history|paleolimnology earth science > paleoclimate > fire history|paleolimnology earth science > paleoclimate > fire history|paleolimnology earth science > paleoclimate > fire history|paleolimnology earth science > paleoclimate > fire history|paleolimnology earth science > paleoclimate > fire history|paleolimnology earth science > paleoclimate > fire history|paleolimnology earth science > paleoclimate > fire history > charcoal sediment theme Global Change Master Directory (GCMD) Science Keywords 2018 revision Version 8.6 Global Change Data Center, Science and Exploration Directorate, Goddard Space Flight Center (GSFC) National Aeronautics and Space Administration (NASA) https://earthdata.nasa.gov/about/gcmd/global-change-master-directory-gcmd-keywords HTTPS Web Browser Global Change Master Directory (GCMD) Keywords The information provided on this page seeks to define how the GCMD Keywords are structured, used and accessed. It also provides information on how users can participate in the further development of the keywords. information publisher Continent > North America > United States Of America > Colorado> Chickaree Lake > LATITUDE 40.334249 > LONGITUDE -105.84727 place otherRestrictions Cite as: Dunnette, P.V.; Higuera, P.E.; McLauchlan, K.K.; Derr, K.M.; Briles, C.E.; Keffe, M.H. (2015-03-28): NOAA/WDS Paleoclimatology - Dunnette fire data from Chickaree Lake, Rocky Mountain National Park, Colorado - IMPD USCHK001. [indicate subset used]. NOAA National Centers for Environmental Information. https://www.ncdc.noaa.gov/paleo/study/19922. Accessed [date]. otherRestrictions Distribution liability: NOAA and NCEI make no warranty, expressed or implied, regarding these data, nor does the fact of distribution constitute such a warranty. NOAA and NCEI cannot assume liability for any damages caused by any errors or omissions in these data. If appropriate, NCEI can only certify that the data it distributes are an authentic copy of the records that were accepted for inclusion in the NCEI archives. otherRestrictions Use liability: NOAA and NCEI cannot provide any warranty as to the accuracy, reliability, or completeness of furnished data. Users assume responsibility to determine the usability of these data. The user is responsible for the results of any application of this data for other than its intended purpose. otherRestrictions None otherRestrictions 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. Biogeochemical impacts of wildfires over four millennia in a Rocky Mountain subalpine watershed 2014 publication Paul V. Dunnette, Philip E. Higuera, Kendra K. McLauchlan, Kelly M. Derr, Christy E. Briles and Margaret H. Keefe author New Phytologist publisher https://doi.org/10.1111/nph.12828 HTTPS Web Browser Associated Reference published 2014 Paul V. Dunnette, Philip E. Higuera, Kendra K. McLauchlan, Kelly M. Derr, Christy E. Briles and Margaret H. Keefe, 2014: Biogeochemical impacts of wildfires over four millennia in a Rocky Mountain subalpine watershed. New Phytologist, 203, 900 - 912, 10.1111/nph.12828 information crossReference sciencePaper eng; USA geoscientificInformation Date Range: 4508 cal yr BP to -60 cal yr BP; -105.84727 -105.84727 40.334249 40.334249 Study Coordinates 40.334249 -105.84727 -2558 2010 STUDY NOTES: Contact person: Philip E. Higuera; Contact person email address: phiguera@uidaho.edu; Sampling date: 2010-08; Water depth (cm): 790; Sampling device: modified Livingstone piston corer; Diameter (cm): 5.0 and 7.6 cm diameter; Supplemental Material Data File Content Details (27 files total): Contents: I. Biogeochemical Data Files (file count: 1) II. Biogenic Silica Data Files (file count: 1) III. Charcoal Data Files (file count: 3) IV. Chronology Data Files (file count: 14) V. Loss-on-ignition Data Files (file count: 1) VI. Magnetic Susceptibility Data Files (file count: 3) VII. Pollen Data Files (file count: 3) Note: All 27 Supplemental Material Data Files of this dataset, listed below, begin with the IMPD code for this dataset: "usck001", and are locate at: http://www1.ncdc.noaa.gov/pub/data/paleo/firehistory/charcoal/northamerica/supplemental/ I. Biogeochemical Data Files (file count: 1) A. uschk001-ch10-biogeochemdata.csv Biogeochemical Data This file contains the same information as Dunnette et al. 2014 Supporting Information, CH10_biogeochemData.csv This file includes the following raw data (by column): 1. core_ID: Sediment core identifier 2. drive_ID: Drive identifier 3. top_sam #: Top sample number 4. bot_sam #: Bottom sample number 5. top_cm: Top depth of sample (cm) 6. bot_cm: Bottom depth of sample (cm) 7. top_age: Top age of sample (cal. yr before CE 1950) 8. bot_age: Bottom age of sample (cal. yr before CE 1950) 9. d15N: Nitrogen isotopic composition (delta 15N; per mil) 10. %N: Percent Nitrogen (by weight) 11. d13C: Carbon isotopic composition (delta 13C; per mil) 12. %C: Percent Carbon (by weight) 13. C:N_atomic_ratio: Ratio of %C to %N (atomic) 14. bulk_density: Bulk density (dry g wet cm-3) 15. C_acc: Carbon accumulation rate (g cm-2 yr-1) 16. MS_SI : Magnetic susceptibility (SI units) Missing Values: NaN Checksum values: 635 rows (with headers), 16 columns Column 3 (top_sam #): 58551 Column 5 (top_cm): 201836 Column 10 (%N): 626.83 Column 15 (C_acc): 341.58 II. Biogenic Silica Data Files (file count: 1) A. uschk001-ch10-bsi-data.csv Biogenic Silica Data File This file contains the same information as Dunnette et al. 2014 Supporting Information, CH10_BSiData This file includes the following raw data (by column): 1. top_cm: top depth of sample (cm) 2. bot_cm: bottom depth of sample (cm) 3. top_age: top age of sample (cal. yr before CE 1950) 4. bot_age: bottom age of sample (cal. yr before CE 1950) 5. %BSi: Percent biogenic silica (by weight) 6. d15NAIR: Nitrogen isotopic composition (delta 15N; per mil) 7. %N: Percent Nitrogen (by weight) 8. d13CVPDB_17O_corrected: Carbon isotopic composition delta 13C; per mil) 9. %C: Percent Carbon (by weight) 10. C:N_atomic_ratio: Ratio of %C to %N (atomic) 11. bulk_density: Bulk density (dry g / wet cm3) Missing Values: None Checksum values: 41 rows (with headers), 11 columns Column 3 (top_cm): 69935 Column 5 (%BSi): 1042.45 Column 10 (C:N): 591.52 III. Charcoal Data Files (file count: 3) Three files, described below, provide the raw input data, the parameters used, and the output data for charcoal analysis via the program CharAnalysis (see Dunnette et al. 2014, Materials and Methods, and https://sites.google.com/site/charanalysis/). A. uschk001-ch10-char-data.csv The raw input data This file contains the same information as Dunnette et al. 2014 Supporting Information, CH10_charData.csv,. This file also contains the same information as the charcoal data file for this dataset, which is located at: http://www1.ncdc.noaa.gov/pub/data/paleo/firehistory/charcoal/northamerica/uschk001.txt This file includes the following raw data (by column): 1. cmTop: top depth (cm) of the sample 2. cmBot: bottom depth (cm) of the sample 3. ageTop: estimated age at top of sample (cal. yr before CE 1950) 4. ageBot: estimated age at bottom of sample (cal. yr before CE 1950) 5. charVol: volume of sediment subsample from which charcoal was prepared (cm3) 6. charCount: pieces of charcoal counted in the sample (#) Missing values: None Checksum values: 1202 rows (with headers), 6 columns Column 3 (ageTop): 2446519 Column 6 (charCount): 38218 B. uschk001-ch10-char-params.csv The parameters used This file contains the same information as Dunnette et al. 2014 Supporting Information, CH10_charParams.csv See CharAnalysis User's Guide for description of parameters file, available at the web site link above. Missing values: -9999 (column 3) or blank cell (all others) Checksum values: 26 rows (with headers), 5 columns Column 3 (Parameters): -39779 C. uschk001-ch10-char-results.csv The output data for charcoal analysis This file contains the same information as Dunnette et al. 2014 Supporting Information, CH10_charResults.csv This file includes the following derived data (reflecting interpolation): 1. cmTop_i: top depth (cm) of interpolated sample 2. ageTop_i: bottom depth (cm) of interpolated sample 3. charCount_i: pieces of charcoal in interpolated sample 4. charVol_i: volume of interpolated sample 5. charCon_i: charcoal concentration in interpolated sample (pieces/cm3) 6. charAcc_i: charcoal accumulation rate, based in interpolated concentration and age (pieces/cm2 yr) 7. charBkg: background charcoal, Cback, smoothed based on methods selected in _charParams.csv file, (pieces/cm2 yr) 8. charPeak: peak charcoal, Cpeak, based on methods selected in _charParams.csv file, (pieces/cm2*yr) 9. thresh1: threshold value (pieces/cm2 yr) based on first threshold entered in _charParams.csv file 10. thresh2: same as thresh1, but for second threshold entered 11. thresh3: same as thresh1, but for third threshold entered 12. threshFinalPos: positive threshold value (pieces/cm2 yr), based on fourth threshold value entered in *charParams.csv file 13. threshFinalNeg: negative threshold value (pieces/cm2 yr), based on fourth threshold value entered in *charParams.csv file 14. SNI: signal-to-noise index values, based on threshdFinalPos values 15. threshGOF: P value from KS goodness-of-fit test between fitted noise distribution and empirical data below the sample-specific threshold 16. peaks1: samples that exceed thresh1 values are identified by "1"; only the first sample is identified 17. peaks2: same as peaks1, but for the second threshold value 18. peaks3: same as peaks1, but for the third threshold value 19. peaksFinal: same as peaks1, but for the final threshold value 20. peaksInsig.: peaks that exceeded threshFinalPos (the final threshold), but did not pass the minimum-count test are identified with a "1" 21. peakMag: peak magnitude is the total pieces of charcoal accumulated in a given peak (pieces/cm2*peak); if a peak is only one sample long, then peak magnitude is simply CHAR minus the positive threshold. If a peak is more than one sample long, then each sample exceeding threshFinal is summed 22. smPeak Frequ: frequency of peaks (from peaksFinal) smoothed over time, as set in *_charParams.csv file 23. smFRIs: fire return intervals (from peaksFinal) smoothed over time, as set in *_charParams.csv file Missing values: NaN Checksum values: 458 rows (with headers), 23 columns Column 2 (age Top_i): 1014540 Column 6 (char Acc_i): 753.8938 Column 19 (peaks Final): 36S IV. Chronology Data Files (file count: 14) A. uschk001-ch10_14Cdates.zip Chronology Data - .zip archive includes the .B00` files output from CALIB This file contains the same information as Dunnette et al. 2014 Supporting Information, CH10_14Cdates.zip. B. uschk001-ch10-210pb-data.xls Chronology Data - Microsoft Excel format file containing Pb210 Data, Pb210 Params, and PB210 Results (210Pb Ages, and 210Pb Age Model). This file contains the same information as Dunnette et al. 2014 Supporting Information, CH10_210Pb_data.xls. c. uschk001-ch10-210pb-input-data.csv Chronology Data - 210Pb Data This file contains the same information as Dunnette et al. 2014 Supporting Information, CH10_210Pb_data.xls, tab: Pb210Data. D. uschk001-ch10-210pb-params.csv Chronology Data - 210Pb Parameter Choices This data is also contained in usck001-ch10-210pb-data.xls tab: Pb210Params. This file contains the same information as Dunnette et al. 2014 Supporting Information, CH10_210Pb_data.xls, tab: Pb210Params. E. uschk001-ch10-210pb-results-ages.csv Chronology Data - 210Pb Ages This data is also contained in usck001-ch10-210pb-data.xls tab: Pb210Results, table within tab: 210Pb Ages. This file contains the same information as Dunnette et al. 2014 Supporting Information, CH10_210Pb_data.xls, tab: Pb210Results, table within tab: 210Pb Ages. F. uschk001-ch10-210pb-results-age-model.csv Chronology Data - 210Pb Age Model This data is also contained in usck001-ch10-210pb-data.xls tab: Pb210Results, table within tab: 210Pb Age Model. This file contains the same information as Dunnette et al. 2014 Supporting Information, CH10_210Pb_data.xls, tab: Pb210Results, table within tab: 210Pb Age Model. G. uschk001-ch10-age-depth-data.csv Supplemental Material: Chronology Data - age-depth data This file contains the same content as Dunnette et al. 2014 Supporting Information, CH10_ageDepthData.csv. This file includes the following raw data (by column): 1. Top depth of sample (cm) 2. Calibrated age at sample top (cal yr BP) 3. Upper 95% confidence intervals for data in column two 4. Lower 95% confidence intervals for data in column two 5. Sedimentation rate (cm/yr) 6. Upper 95% confidence intervals for data in column five 7. Lower 95% confidence intervals for data in column five 8. Sample resolution (yr/sample) 9. Upper 95% confidence intervals for data in column eight 10. Lower 95% confidence intervals for data in column eight Missing values: None Checksum values: 1596 rows (with headers), 10 columns Column 1 (sampleCm): 642150.9 Column 2 (calAge): 4679522 Column 5 (sedAcc): 211.236 Column 8 (sampleRes): 6860.85 H. uschk001-ch10-age-depth-data.xls Chronology Data - age-depth data in Microsoft Excel file format This file contains the same content as Dunnette et al. 2014 Supporting Information, CH10_ageDepthData.xls. I. uschk001-ch10-age-depth-input-data-tab Chronology Data - age-depth input data This file contains the same content as Dunnette et al. 2014 Supporting Information, CH10_ageDepthData.xls, Tab: InputData This file also contains the same content as uschk001-ch10-age-depth-data.xls, Tab: InputData (described above). J. uschk001-ch10-age-depth-input-params-tab Chronology Data - age-depth input parameters This file contains the same content as Dunnette et al. 2014 Supporting Information, CH10_ageDepthData.xls, Tab: InputParams This file also contains the same content as uschk001-ch10-age-depth-data.xls, Tab: InputParams (described above). K. uschk001-ch10-age-depth-pb210-data-tab Chronology Data - age-depth pb21 data This file contains the same content as Dunnette et al. 2014 Supporting Information, CH10_ageDepthData.xls, Tab: pb210Data This file also contains the same content as uschk001-ch10-age-depth-data.xls, Tab: pb210Data (described above). L. uschk001-ch10-age-depth-calib-dates-tab Chronology Data - age-depth input parameters This file contains the same content as Dunnette et al. 2014 Supporting Information, CH10_ageDepthData.xls, Tab: calibDates This file also contains the same content as uschk001-ch10-age-depth-data.xls, Tab: calibDates (described above). M. uschk001-ch10-age-depth-chron-tab Chronology Data - age-depth input parameters This file contains the same content as Dunnette et al. 2014 Supporting Information, CH10_ageDepthData.xls, Tab: chronology This file also contains the same content as uschk001-ch10-age-depth-data.xls, Tab: chronology (described above). N. uschk001-ch10_radiometric-samples.csv Chronology Data - radiometric samples. This file contains the same content as Dunnette et al. 2014 Supporting Information, CH10_radiometricSamples.csv. This file also contains the same content as the Chronology section of this dataset for the Charcoal, Loss-on-ignition, and Magnetic Susceptibility data files, respectively named uschk001.txt, uschk001.loi, and uschk001.mag, and all located at http://www1.ncdc.noaa.gov/pub/data/paleo/firehistory/charcoal/northamerica/ V. Loss-on-ignition Data Files (file count: 1) A. uschk001-ch10-loi-data.csv Loss-on-ignition data This file contains the same content as Dunnette et al. 2014 Supporting Information, CH10_LOI_Data.csv. This file also contains the same content as the Data section of the Loss-on-ignition file for this dataset, located at: http://www1.ncdc.noaa.gov/pub/data/paleo/firehistory/charcoal/northamerica/uschk001.loi Note: for usck001.loi, core_ID, drive_id, top_sam#, and bot_sam# have been concatenated into the last column with heading, Notes. This file includes the following raw data (by column): 1. core_ID: Sediment core identification number 2. drive_ID: Drive identifier 3. top_sam #: Top sample number 4. bot_sam #: Bottom sample number 5. top_cm: top depth of sample (cm) 6. bot_cm: bottom depth of sample (cm) 7. top_age: top age of sample (cal. yr before CE 1950) 8. bot_age: bottom age of sample (cal. yr before CE 1950) 9. d15N: Nitrogen isotopic composition (delta 15N; per mil) 10. %N: Percent nitrogen (by weight) 11. d13C: Carbon isotopic composition (delta 13C; per mil) 12. %C: Percent carbon (by weight) 13. C:N_atomic_ratio: Ratio of %C to %N (atomic) 14. bulk_density: Bulk density (dry g wet cm-3) 15. LOI_550: Loss on ignition at 550 C (% organic matter; multiply by 100) 16. LOI_1000: Loss on ignition at 1000 C (% organic matter; multiply by 100) Missing Values: None Checksum values: 124 rows (with headers), 16 columns Column 3 (top_samp #): 12010 Column 5 (top_cm): 31833.7 Column 10 (%N): 161.05 Column 15 (LOI_550): 38.63 VI. Magnetic Susceptibility Data Files (file count: 3) Three files (Cuschk001-ch10-ms-char-data.csv, uschk001-ch10-ms-char-params.csv, uschk001-ch10-ms-char-results.csv, described below) provide the raw input data, the parameters used, and the output data for peak analysis of magnetic susceptibility (MS) data, using the program CharAnalysis (see Materials and Methods in main text, and web site https://sites.google.com/site/charanalysis/). The column headers for all files are the same as for charcoal analysis (CH10_char* files), but NOTE that the units for MS have been manipulated to be able to be used in CharAnalysis (see below). A. uschk001-ch10-ms-char-data.csv Raw input data This file contains the same content as Dunnette et al. 2014 Supporting Information, CH10_MS_charData.csv. This file also contains the same content as the Data section of the Magnetic Susceptibility file for this dataset, locted at: http://www1.ncdc.noaa.gov/pub/data/paleo/firehistory/charcoal/northamerica/uschk001.mag, minus the "dummyVar" column. This file Includes the following raw data (by column): 1. cmTop: top depth (cm) of the sample 2. cmBot: bottom depth (cm) of the sample 3. ageTop: estimated age at top of sample (cal. yr before CE 1950) 4. ageBot: estimated age at bottom of sample (cal. yr before CE 1950) 5. dummyVar: dummy variable set to 1, to facilitate use in CharAnalysis program 6. MS_shifted_trans: Shifted MS data (from col. 8), transformed by dividing by the sediment accumulation rate (cm/yr). Thus, when these transformed values are multiplied by the sediment accumulation rate (cm/yr), as done in CharAnalysis, the result is the transformed MS values (column 8). 7. MS_raw_SI: Raw magnetic susceptibility measurements (SI units) 8. MS_shifted: Raw MS values, shifted by adding the minimum values in MS_raw_SI to each value, such that the minimum value becomes 0. CharAnalysis cannot work with negative data. Missing values: None Checksum values: 1477 rows (with headers), 8 columns Column 3 (ageTop): 3970165 Column 6 (setRate/MS): 0.3626761 B. uschk001-ch10-ms-char-params.csv The parameters used This file contains the same content as Dunnette et al. 2014 Supporting Information, CH10_MS_charParams.csv C. uschk001-ch10-ms-char-results.csv Output data for peak analysis of magnetic susceptibility (MS) data This file contains the same content as Dunnette et al. 2014 Supporting Information, CH10_MS_charResults.csv. VII. Pollen Data Files (file count: 3) A. uschk001-ch10-pollen-counts.csv Raw pollen data reported as pollen counts This file contains the same content as Dunnette et al. 2014 Supporting Information, CH10_PollenCounts.csv B. uschk001-ch10-pollen-counts.xls Raw pollen data reported as pollen counts (in Microsoft Excel format file) This file contains the same content as Dunnette et al. 2014 Supporting Information, CH10_PollenCounts.xls This file also contains the same content as uschk001-ch10-pollen-counts.csv uschk001-ch10-pollen-counts.csv and uschk001-ch10-pollen-counts.xls (described above), include the following raw data (by column): 1. Sample_ID : Identification of sample, by lake (CH), year (07 or 10), core (1 or 2), and drive (A, B,C,...). 2. Sample_number: Sample number for each drive 3. Top_cm: Top depth of each sample (cm) 4. age_yrBP: Age of each sample, in calibrated years before present (CE 1950) 5. Pinus hap: Haploxilon Pinus pollen grains counted 6. Pinud dip: Diploxilon Pinus pollen grains counted 7. Pinus undiff: Undifferentiated Pinus pollen grains counted 8. Picea: Picea pollen grains counted 9...112: Column heads are the taxonomic identification for each pollen grain counted 9. Charcoal: NOT COUNTED 10. EU: Exotic pollen grains, added as spike. Missing values: NaN. Checksum values: 46 rows (with headers), 113 columns Column 2 (sample_number): 6143 Column 4 (age_yrBP): 86683 Column 10 (Pseudotsuga/Larix): 42 Column 113 (EU): 8793 C. uschk001-ch10-pollen-percentages.csv Pollen percentages This file contains the same content as Dunnette et al. 2014 Supporting Information, CH10_pollenPercentages.csv This file includes the following raw data (by column): 1. Sample_ID : Identification of sample, by lake (CH), year (07 or 10), core (1 or 2), and drive (A, B, C,...). 2. Sample_number: Sample number for each drive 3. Top_cm: Top depth of each sample (cm) 4. age_yrBP: Age of each sample, in calibrated years before present (CE 1950) 5. Pinus hap: Haploxilon Pinus pollen grains counted 6. Pinud dip: Diploxilon Pinus pollen grains counted 7. Pinus undiff: Undifferentiated Pinus pollen grains counted 8. Picea: Picea pollen grains counted 9...107: Columns heads are the taxonomic identification for each pollen grain counted Missing values: None. Checksum values: 46 rows (with headers), 106 columns Column 2 (sample_number): 6143 Column 4 (age_yrBP): 86683 Column 10 (Pseudotsuga/Larix): 12 Column 102 (Nuphar): 13.19 ABSTRACT SUPPLIED BY ORIGINATOR: Wildfires can significantly alter forest carbon (C) storage and nitrogen (N) availability, but the long-term biogeochemical legacy of wildfires is poorly understood. We obtained a lake-sediment record of fire and biogeochemistry from a subalpine forest in Colorado, USA, to examine the nature, magnitude, and duration of decadal-scale, fire-induced ecosystem change over the past c. 4250 yr. The high-resolution record contained 34 fires, including 13 high-severity events within the watershed. High-severity fires were followed by increased sedimentary N stable isotope ratios (d15N) and bulk density, and decreased C and N concentrations – reflecting forest floor destruction, terrestrial C and N losses, and erosion. Sustained low sediment C : N c. 20–50 yr post-fire indicates reduced terrestrial organic matter subsidies to the lake. Low sedimentary d15N c. 50–70 yr post-fire, coincident with C and N recovery, suggests diminishing terrestrial N availability during stand development. The magnitude of post-fire changes generally scaled directly with inferred fire severity. Our results support modern studies of forest successional C and N accumulation and indicate pronounced, long-lasting biogeochemical impacts of wildfires in subalpine forests. However, even repeated high-severity fires over millennia probably did not deplete C or N stocks, because centuries between high-severity fires allowed for sufficient biomass recovery. DOC/NOAA/NESDIS/NCEI > National Centers for Environmental Information, NESDIS, NOAA, U.S. Department of Commerce Customer Engagement Branch 1-828-271-4800 1-828-271-4876 151 Patton Avenue Veach-Baley Federal Building, Room 468 Asheville NC 28801-5001 USA ncei.orders@noaa.gov https://www.ncei.noaa.gov HTTPS Web Browser NOAA National Centers for Environmental Information (NCEI) NCEI home page with information, data access and contact information. information 8:00 - 6:00 Eastern distributor In most cases, electronic downloads of the data are free, however fees may apply for data certifications, copies of analog materials, and data distribution on physical media. Native Format(s) https://data.nodc.noaa.gov/cgi-bin/iso?id=noaa-fire-19922 HTTPS Landing Page NCEI landing page for this dataset Dataset landing page with general information and links to access the data. information https://www.ncdc.noaa.gov/paleo/study/19922 HTTPS Web Browser NCEI Study Page Study page with dataset access information. search https://www.ncdc.noaa.gov/data-access/paleoclimatology-data/datasets/fire-history HTTPS Information NCEI Fire Page General information for this data type. information https://www1.ncdc.noaa.gov/pub/data/paleo/firehistory/charcoal/northamerica/uschk001.loi HTTP Download NCEI Direct Download Direct download links for dataset files. download https://www1.ncdc.noaa.gov/pub/data/paleo/firehistory/charcoal/northamerica/uschk001.mag HTTP Download NCEI Direct Download Direct download links for dataset files. download https://www1.ncdc.noaa.gov/pub/data/paleo/firehistory/charcoal/northamerica/supplemental/uschk001/ HTTPS Download /firehistory/charcoal/northamerica/supplemental/uschk001/ Data Folder download https://www1.ncdc.noaa.gov/pub/data/paleo/firehistory/charcoal/northamerica/uschk001.txt HTTP Download NCEI Direct Download Direct download links for dataset files. download asNeeded This metadata record was translated from DIF using dif-9x-to-iso-19115-2.xsl Version: 2018-10-25