This codebook.txt file was generated on by ------------------- GENERAL INFORMATION ------------------- 1. Title of Dataset Marcell Experimental Forest Black Spruce Dendrochronology 2. Author Information Principal Investigator Contact Information Name: Salli F. Dymond Institution: University of Minnesota Duluth Address: Email: sdymond@d.umn.edu Associate or Co-investigator Contact Information Name: Anthony W. D'Amato Institution: University of Vermont Address: Email: awdamato@uvm.edu Associate or Co-investigator Contact Information Name: Randall K. Kolka Institution: USDA Forest Service Address: Email: rkolka@fs.fed.us Associate or Co-investigator Contact Information Name: Paul V. Bolstad Institution: University of Minnesota Address: Email: pbolstad@umn.edu Associate or Co-investigator Contact Information Name: Stephen D. Sebestyen Institution: USDA Forest Service Address: Email: ssebestyen@fs.fed.us Associate or Co-investigator Contact Information Name: Kyle G. Gill Institution: University of Minnesota Address: Email: kggill@umn.edu Associate or Co-investigator Contact Information Name: Miranda T. Curzon Institution: Iowa State University Address: Email: mcurzon@iastate.edu 3. Date of data collection (single date, range, approximate date) 20100601 - 20140830 4. Geographic location of data collection (where was data collected?): Marcell Experimental Forest, 43122 Wilderness Trail, Bovey, MN 55709 5. Information about funding sources that supported the collection of the data: This project was funded by the USDA Forest Service Northern Research Station and the Department of Interior Northeast Climate Adaptation Science Center -------------------------- SHARING/ACCESS INFORMATION -------------------------- 1. Licenses/restrictions placed on the data: CC0 1.0 Universal 2. Links to publications that cite or use the data: Dymond, S. F., D'Amato, A. W., Kolka, R. K., Bolstad, P. V., Sebestyen, S. D., Gill, K., & Curzon, M. T. In press. Climatic controls on peatland black spruce growth in relation to water table variation and precipitation. Ecohydrology. 3. Links to other publicly accessible locations of the data: N/A 4. Links/relationships to ancillary data sets: MEF Daily Streamflow Data: https://www.fs.usda.gov/rds/archive/Product/RDS-2018-0009/ MEF Water Table Data: https://www.fs.usda.gov/rds/archive/Product/RDS-2018-0002/ 5. Was data derived from another source? n0 6. Recommended citation for the data: Dymond, S. F., D'Amato, A. W., Kolka, R. K., Bolstad, P. V., Sebestyen, S. D., Gill, K., & Curzon, M. T. (2019). Marcell Experimental Forest Black Spruce Dendrochronology. etrieved from the Data Repository for the University of Minnesota, http://hdl.handle.net/11299/200918. --------------------- DATA & FILE OVERVIEW --------------------- 1. File List A. Filename: MEF-dendrochronology_readme.txt Short description: An explanatory and over-arching README text file. B. Filename: BS02.txt Short description: Cross-dated ring-widths as measured using Velmex mesuring system for each tree from site BS02 C. Filename: BS03.txt Short description: Cross-dated ring-widths as measured using Velmex mesuring system for each tree from site BS03 D. Filename: BS04.txt Short description: Cross-dated ring-widths as measured using Velmex mesuring system for each tree from site BS04 E. Filename: BS05.txt Short description: Cross-dated ring-widths as measured using Velmex mesuring system for each tree from site BS05 F. Filename: BS07.txt Short description: Cross-dated ring-widths as measured using Velmex mesuring system for each tree from site BS07 G. Filename: BS08.txt Short description: Cross-dated ring-widths as measured using Velmex mesuring system for each tree from site BS08 H. Filename: BS09.txt Short description: Cross-dated ring-widths as measured using Velmex mesuring system for each tree from site BS09 2. Relationship between files: Files contain similar data but from different sites. 3. Additional related data collected that was not included in the current data package: Site BS01 was discarded because the location on the landscape could not be verified. Site BS06 contained no Black Spruce, so was not included in this dataset. 4. Are there multiple versions of the dataset? No -------------------------- METHODOLOGICAL INFORMATION -------------------------- 1. Description of methods used for collection/generation of data: Six study sites were randomly placed within four of the research peatlands at the MEF and sampled in spring 2010 and 2014 (Table 1). Circular plots, 1/20th ha in size, were flagged around randomly-placed plot centers. For every tree greater than 10 cm diameter at breast height (dbh; 1.3 m height) located within the plot, height, dbh, crown class, distance from plot center, and azimuth were measured. Additionally, two perpendicular increment cores were collected at breast height from each tree. Cores were mounted, sanded, and annual ring-widths were measured using a VELMEX measuring system (0.001 mm resolution; Velmex, Inc., Bloomfield, New Jersey, USA) outfitted with MeasureJ2X measuring software (VoorTech Consulting, Holderness, New Hampshire, USA). We visually cross-dated each individual tree-ring series against the master chronology developed for each site and the quality of cross-dating techniques was statistically verified using COFECHA software (Grissino-Mayer, 2001; Holmes, 1983). Many of the individual tree-ring series contained deteriorated centers, and these cores were removed from the analysis. Additionally, we focused our attention on dominant and co-dominant black spruce cores and omitted the tamarack cores from the analysis due to low sample size and confidence in cross-dating. 2. Methods for processing the data: Data in this dataset were cross-dated but otherwise have not undergone any additional analysis or manipulation. Cross-dating statistics can be found in the above citation (Dymond et al. 2019) 3. Instrument- or software-specific information needed to interpret the data: Data contain raw ring-width files that can be directly imported into any R script that can handle dendrochronology data 4. Standards and calibration information, if appropriate: N/A 5. Environmental/experimental conditions: None 6. Describe any quality-assurance procedures performed on the data: See question 1 of the methodological information section 7. People involved with sample collection, processing, analysis and/or submission: See author list ----------------------------------------- DATA-SPECIFIC INFORMATION FOR: BS02.txt ----------------------------------------- 1. Number of variables: 3 2. Number of cases/rows: 20 individual trees 3. Missing data codes: None 4. Variable List A. Name: Tree ID - Column 1 Description: Number of trees located within the plot. Number is unique to each individual tree. A or B designates one of two cores collected from each tree B. Name: Year - Column 2 Description: Decade of subsequent measurements C. Name: Ring-width - Columns 3 - 12 Description: Width of ring (mm). One measurement per each year starting in the year of column 2 and counting down. -9999 indicates last year of measurement. DATA-SPECIFIC INFORMATION FOR: BS03.txt ----------------------------------------- 1. Number of variables: 3 2. Number of cases/rows: 14 individual trees 3. Missing data codes: None 4. Variable List A. Name: Tree ID - Column 1 Description: Number of trees located within the plot. Number is unique to each individual tree. A or B designates one of two cores collected from each tree B. Name: Year - Column 2 Description: Decade of subsequent measurements C. Name: Ring-width - Columns 3 - 12 Description: Width of ring (mm). One measurement per each year starting in the year of column 2 and counting down. -9999 indicates last year of measurement. DATA-SPECIFIC INFORMATION FOR: BS04.txt ----------------------------------------- 1. Number of variables: 3 2. Number of cases/rows: 24 individual trees 3. Missing data codes: None 4. Variable List A. Name: Tree ID - Column 1 Description: Number of trees located within the plot. Number is unique to each individual tree. A or B designates one of two cores collected from each tree B. Name: Year - Column 2 Description: Decade of subsequent measurements C. Name: Ring-width - Columns 3 - 12 Description: Width of ring (mm). One measurement per each year starting in the year of column 2 and counting down. -9999 indicates last year of measurement. DATA-SPECIFIC INFORMATION FOR: BS05.txt ----------------------------------------- 1. Number of variables: 3 2. Number of cases/rows: 20 individual trees 3. Missing data codes: None 4. Variable List A. Name: Tree ID - Column 1 Description: Number of trees located within the plot. Number is unique to each individual tree. A or B designates one of two cores collected from each tree B. Name: Year - Column 2 Description: Decade of subsequent measurements C. Name: Ring-width - Columns 3 - 12 Description: Width of ring (mm). One measurement per each year starting in the year of column 2 and counting down. -9999 indicates last year of measurement. DATA-SPECIFIC INFORMATION FOR: BS07.txt ----------------------------------------- 1. Number of variables: 3 2. Number of cases/rows: 24 individual trees 3. Missing data codes: None 4. Variable List A. Name: Tree ID - Column 1 Description: Number of trees located within the plot. Number is unique to each individual tree. A or B designates one of two cores collected from each tree B. Name: Year - Column 2 Description: Decade of subsequent measurements C. Name: Ring-width - Columns 3 - 12 Description: Width of ring (mm). One measurement per each year starting in the year of column 2 and counting down. -9999 indicates last year of measurement. DATA-SPECIFIC INFORMATION FOR: BS08.txt ----------------------------------------- 1. Number of variables: 3 2. Number of cases/rows: 20 individual trees 3. Missing data codes: None 4. Variable List A. Name: Tree ID - Column 1 Description: Number of trees located within the plot. Number is unique to each individual tree. A or B designates one of two cores collected from each tree B. Name: Year - Column 2 Description: Decade of subsequent measurements C. Name: Ring-width - Columns 3 - 12 Description: Width of ring (mm). One measurement per each year starting in the year of column 2 and counting down. -9999 indicates last year of measurement. DATA-SPECIFIC INFORMATION FOR: BS09.txt ----------------------------------------- 1. Number of variables: 3 2. Number of cases/rows: 24 individual trees 3. Missing data codes: None 4. Variable List A. Name: Tree ID - Column 1 Description: Number of trees located within the plot. Number is unique to each individual tree. A or B designates one of two cores collected from each tree B. Name: Year - Column 2 Description: Decade of subsequent measurements C. Name: Ring-width - Columns 3 - 12 Description: Width of ring (mm). One measurement per each year starting in the year of column 2 and counting down. -9999 indicates last year of measurement.