Deep Pond, Massachusetts 12KYr LOI Data and Moisture Balance Reconstructions Marsicek, J.P.; Shuman, B.N.; Brewer, S.; Foster, D.R.; Oswald, W. Marsicek, J.P. Shuman, B.N. Brewer, S. Foster, D.R. Oswald, W. Other Hydroclimate Reconstruction hydrology earth science/paleoclimate/climate reconstructions|lake levels|paleolimnology (notes,null,null,null,null,climate reconstructions|lake levels|paleolimnology,null,null,C,null) earth science/paleoclimate/climate reconstructions|lake levels|paleolimnology (age,null,null,calendar year before present,null,climate reconstructions|lake levels|paleolimnology,null,null,N,null) earth science/paleoclimate/paleolimnology (age,null,range lower bound,calendar year before present,null,paleolimnology,null,null,N,null) earth science/paleoclimate/climate reconstructions|paleolimnology (precipitation minus evaporation,null,percentile,millimeter,null,climate reconstructions|paleolimnology,null,null,N,75th percentile; based on sediment loss on ignition) earth science/paleoclimate/climate reconstructions|paleolimnology (precipitation minus evaporation,null,percentile,millimeter,null,climate reconstructions|paleolimnology,null,null,N,25th percentile; based on sediment loss on ignition) earth science/paleoclimate/paleolimnology (depth,null,null,centimeter,null,paleolimnology,null,null,N,null) earth science/paleoclimate/paleolimnology (age,null,range upper bound,calendar year before present,null,paleolimnology,null,null,N,null) earth science/paleoclimate/climate reconstructions|paleolimnology (age,null,null,calendar year before present,null,climate reconstructions|paleolimnology,null,null,N,null) earth science/paleoclimate/climate reconstructions|paleolimnology (precipitation minus evaporation,null,one standard deviation lower bound,millimeter,null,climate reconstructions|paleolimnology,null,null,N,based on sediment loss on ignition) earth science/paleoclimate/climate reconstructions|lake levels|paleolimnology (lake level,null,null,millimeter,null,climate reconstructions|lake levels|paleolimnology,null,null,N,relative to present) earth science/paleoclimate/climate reconstructions|lake levels|paleolimnology (lake level,null,range upper bound,millimeter,null,climate reconstructions|lake levels|paleolimnology,null,null,N,relative to present) earth science/paleoclimate/climate reconstructions|paleolimnology (precipitation minus evaporation,null,null,millimeter,null,climate reconstructions|paleolimnology,null,null,N,based on sediment loss on ignition) earth science/paleoclimate/climate reconstructions|lake levels|paleolimnology (lake level,null,range lower bound,millimeter,null,climate reconstructions|lake levels|paleolimnology,null,null,N,relative to present) earth science/paleoclimate/paleolimnology (age,null,null,calendar year before present,null,paleolimnology,null,null,N,null) earth science/paleoclimate/paleolimnology (organic matter,sediment,null,weight percent,null,paleolimnology,null,loss on ignition,N,550 degrees C) earth science/paleoclimate/paleolimnology earth science/paleoclimate/paleolimnology (Deep Pond>LATITUDE 41.564>LONGITUDE -70.635) Sediment-based reconstructions of late-Quaternary lake levels provide direct evidence of hydrologic responses to climate change, but many studies only provide approximate lake elevation curves. Here, we demonstrate a new method for producing quantitative time series of lake elevation based on the facies and elevations of multiple cores collected from a lake's margin. The approach determines the facies represented in each core using diagnostic data, such as sand content, and then compares the results across cores to determine the elevation of the littoral zone over time. By applying the approach computationally, decisions are made systematically and iteratively using different facies classification schemes to evaluate the associated uncertainty. After evaluating our assumptions using ground-penetrating radar (GPR), we quantify past lake-elevation changes, precipitation minus evapotranspiration (DeltaP-ET), and uncertainty in both at Lake of the Woods and Little Windy Hill Pond, Wyoming. The well correlated (r=0.802+/-0.002) reconstructions indicate that water levels at both lakes fell at >11,300, 8000-5500, and 4700-1600 cal yr BP when DeltaP-ET decreased to -50 to -250 mm/yr. Differences between the reconstructions are typically small (10+/-24 mm/yr since 7000 cal yr BP), and the similarity indicates that our reconstruction method can produce statistically-comparable paleohydrologic datasets across networks of sites. STUDY NOTES: Sediment loss-on-ignition (LOI) values and moisture balance (lake-level and DeltaP-E, Precipitation minus Evaporation) reconstructions for Deep Pond, Massachusetts. Also included are facies thresholds for differentiating littoral and sub-littoral lake sediment facies based on the raw core data, for use in the iterative lake-level reconstruction process. The reconstruction process iteratively applies each set of thresholds in R to produce an ensemble of reconstructions. The code for generating the lake-level reconstruction according to the process described in Pribyl and Shuman (2014) is provided. Also included are the ensemble mean lake-level reconstruction and its uncertainty per 50-yr interval for the length of the record, and the individual ensemble members for each time step (but without the ages for the steps). R script MoistureBalance is the code for the simple moisture-budget calculation based on the lake-level reconstruction. Again this follows Pribyl and Shuman (2014). PErecon contains the median P-E reconstruction as an anomaly from modern for each 50-yr interval, as well as the 1-sigma and 25% and 75% quantiles of the reconstruction uncertainty. Data and R code are included in original contributor files: Deep_cores.csv, Deep_Iterations_012414.csv, Deep_LLrecon_012414.csv, Deep_PErecon_012414.csv, Deep_R_Script_LLRecon_012414.txt, Deep_R_Script_MoistureBalance_011414.txt, and FaciesThresholds_Deep.csv, plus WDC Paleo formatted text files deep2013loi.txt, deep2013ll.txt, and deep2013p-e.txt. NCDC-Paleoclimatology https://www.ncdc.noaa.gov/data-access/paleoclimatology-data - Bauer Bruce Investigator : Marsicek, J.P. Investigator : Shuman, B.N. Investigator : Brewer, S. Investigator : Foster, D.R. Investigator : Oswald, W. 2014-01-24 ONLINE Files online, ASCII https://www.ncdc.noaa.gov/paleo/study/16095 https://www1.ncdc.noaa.gov/pub/data/paleo/paleolimnology/northamerica/usa/massachusetts/deep2013loi.txt https://www1.ncdc.noaa.gov/pub/data/paleo/paleolimnology/northamerica/usa/massachusetts/FaciesThresholds_Deep.csv https://www1.ncdc.noaa.gov/pub/data/paleo/paleolimnology/northamerica/usa/massachusetts/Deep_R_Script_LLRecon_012414.txt https://www1.ncdc.noaa.gov/pub/data/paleo/paleolimnology/northamerica/usa/massachusetts/Deep_PErecon_012414.csv https://www1.ncdc.noaa.gov/pub/data/paleo/paleolimnology/northamerica/usa/massachusetts/Deep_R_Script_MoistureBalance_011414.txt https://www1.ncdc.noaa.gov/pub/data/paleo/paleolimnology/northamerica/usa/massachusetts/deep2013ll.txt https://www1.ncdc.noaa.gov/pub/data/paleo/paleolimnology/northamerica/usa/massachusetts/Deep_cores.csv https://www1.ncdc.noaa.gov/pub/data/paleo/paleolimnology/northamerica/usa/massachusetts/Deep_LLrecon_012414.csv https://www1.ncdc.noaa.gov/pub/data/paleo/paleolimnology/northamerica/usa/massachusetts/deep2013p-e.txt https://www1.ncdc.noaa.gov/pub/data/paleo/paleolimnology/northamerica/usa/massachusetts/Deep_Iterations_012414.csv https://www1.ncdc.noaa.gov/pub/data/paleo/paleolimnology/northamerica/usa/massachusetts/deep2013loi.txt https://www1.ncdc.noaa.gov/pub/data/paleo/paleolimnology/northamerica/usa/massachusetts/FaciesThresholds_Deep.csv https://www1.ncdc.noaa.gov/pub/data/paleo/paleolimnology/northamerica/usa/massachusetts/Deep_R_Script_LLRecon_012414.txt https://www1.ncdc.noaa.gov/pub/data/paleo/paleolimnology/northamerica/usa/massachusetts/Deep_PErecon_012414.csv https://www1.ncdc.noaa.gov/pub/data/paleo/paleolimnology/northamerica/usa/massachusetts/Deep_R_Script_MoistureBalance_011414.txt https://www1.ncdc.noaa.gov/pub/data/paleo/paleolimnology/northamerica/usa/massachusetts/deep2013ll.txt https://www1.ncdc.noaa.gov/pub/data/paleo/paleolimnology/northamerica/usa/massachusetts/Deep_cores.csv https://www1.ncdc.noaa.gov/pub/data/paleo/paleolimnology/northamerica/usa/massachusetts/Deep_LLrecon_012414.csv https://www1.ncdc.noaa.gov/pub/data/paleo/paleolimnology/northamerica/usa/massachusetts/deep2013p-e.txt https://www1.ncdc.noaa.gov/pub/data/paleo/paleolimnology/northamerica/usa/massachusetts/Deep_Iterations_012414.csv English https://www.ncdc.noaa.gov/paleo/study/16095 https://www1.ncdc.noaa.gov/pub/data/paleo/paleolimnology/northamerica/usa/massachusetts/deep2013loi.txt https://www1.ncdc.noaa.gov/pub/data/paleo/paleolimnology/northamerica/usa/massachusetts/FaciesThresholds_Deep.csv https://www1.ncdc.noaa.gov/pub/data/paleo/paleolimnology/northamerica/usa/massachusetts/Deep_R_Script_LLRecon_012414.txt https://www1.ncdc.noaa.gov/pub/data/paleo/paleolimnology/northamerica/usa/massachusetts/Deep_PErecon_012414.csv https://www1.ncdc.noaa.gov/pub/data/paleo/paleolimnology/northamerica/usa/massachusetts/Deep_R_Script_MoistureBalance_011414.txt https://www1.ncdc.noaa.gov/pub/data/paleo/paleolimnology/northamerica/usa/massachusetts/deep2013ll.txt https://www1.ncdc.noaa.gov/pub/data/paleo/paleolimnology/northamerica/usa/massachusetts/Deep_cores.csv https://www1.ncdc.noaa.gov/pub/data/paleo/paleolimnology/northamerica/usa/massachusetts/Deep_LLrecon_012414.csv https://www1.ncdc.noaa.gov/pub/data/paleo/paleolimnology/northamerica/usa/massachusetts/deep2013p-e.txt https://www1.ncdc.noaa.gov/pub/data/paleo/paleolimnology/northamerica/usa/massachusetts/Deep_Iterations_012414.csv Jeremiah P. Marsicek, Bryan Shuman, Simon Brewer, David R. Foster, W. Wyatt Oswald2013Moisture and temperature changes associated with the mid-Holocene Tsuga decline in the northeastern United StatesQuaternary Science Reviews80129-14210.1016/j.quascirev.2013.09.001http://www.sciencedirect.com/science/article/pii/S0277379113003375 Paul Pribyl and Bryan N. Shuman2014A Computational Approach to Quaternary Lake-Level Reconstruction Applied in the Central Rocky Mountains, Wyoming, USAQuaternary Research START YEAR: 15205 cal yr BP * END YEAR: -59 cal yr BP -70.635 41.564 -70.635 41.564