The following data was recently added to the Data Commons.
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Susquehanna Shale Hills CZO - Imaginary Time Imaginary Dialetric Constant Data by H. S. Lin. The Real-Time Soil Moisture Monitoring Network provides integrated observation of water, energy and temperature in the soils of the Shale Hills Susquehanna Critical Zone Observatory watershed. Dialetric Constant is measured at 4 depths at 2 sites. Imaginary Dialetric Constant is measured with HydraProbes manufactured by Stevens Instruments. |
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Susquehanna Shale Hills CZO - Shale Hills CZO Groundwater depth data (Level II) by C. J. Duffy. Quality controlled groundwater depth data have been prepared using the field observation data and the missing data have been estimated with the model prediction using PIHM v2.0 (Soil: CZO soil data, Land Cover: CZO land cover product, Vegetation: PIHMgis, DEM: LIDAR 1m x1m spatial resolution, Bed rock: CZO geology coverage, Precipitation, Temperature, Vapor Pressure, Relative Humidity, Wind Speed and Solar Radiation using NLDAS - 2). |
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Brief daily functional strength training to improve functional performance in older adults with mobility disability: A randomized trial by S. Dandekar, J. Kurth, Y. Shang, J. G. Stine, M. A. Ladwig, D. E. Conroy, K. H. Schmitz, L. S. Rovniak, M. Silvis, M. Danilovich, N. Ballentine, N. Pierwola-Gawin, S. Zhou, and C. Sciamanna. Mobility disability is associated with functional decline in older adults. Resistance training (RT) improves mobility disability, but adherence to national RT guidelines is poor. We evaluated the effects of a 12-week brief, home-based functional RT program, FAST (Functional Activity Strength Training)-2, on adherence and functional impairment in older, inactive adults = 65 years of age, with pre-existing walking difficulty. |
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Susquehanna Shale Hills CZO - Terrestrial Laser Scan by R. Slingerland and E. Kirby. Terrestrial laser mapping (TLM) of the SSHO was conducted in March, 2010 to provide centimeter scale spatial data of the watershed. Motivation for this high resolution scanning includes characterization of micro-topographic features, primary among which are tree throw pit and mound pairs. This file is a comma delimited text file containing x, y, and z spatial data collected during the TLM effort. This point cloud data produce a centimeter scale DEM of the western 1/3 of the SSHO watershed. |
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Susquehanna Shale Hills CZO - Tree Isotope Chemistry by D. Eissenstat and K. Gaines. Small tree branches were sampled by tree climbing over the course of the season in 2009 and 2011. Samples were sealed in glass vials, frozen. The water was extracted from the tissue via cryogenic vacuum distillation. Samples were analyzed at the University of California at Berkeley, Center for Stable Isotope Biogeochemistry by mass spectroscopy, equilibration method. |
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SLEEPS - Storage, Logistics and Economics of Ethanol Production from Stover by I. D. Darku. SLEEPS is a user friendly, Microsoft Excel-based model that allows users choose from various wet and dry storage configurations to determine their impact on feedstock delivery, ethanol yield and ethanol production cost. This two-part, dry and wet storage comparative process-cost model covers corn stover logistics chain from harvest to delivery at the biorefinery and production of ethanol. |
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Hydrocarbons data compilation by O. Mcintosh and C. H. House. Distinguishing between microbial, abiotic, and thermogenic methane sources is fundamental for understanding Earth’s carbon cycle and for assessing potential biosignatures beyond our planet. Stable carbon isotopic analyses have long been central to geochemical investigations, and extending such approaches to volatile reservoirs on other Solar System bodies remains a major goal of planetary science. However, whether the carbon isotopic composition of methane can be confidently used as a biosignature remains debated. The results suggest hydrocarbon geochemistry can be a transferable and rigorous tool for interpreting methane origins across terrestrial and extraterrestrial environments. |
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UAV Surveys on Thwaites Glacier and WAIS Divide, Antarctica by A. G. Willet and S. Anandakrishnan. An exciting new development in polar field science is the ability to use drones to capture high spatial and temporal resolution data in areas of interest. In Antarctica, these deployments have the capacity to both enhance science and help with logistics in a relatively low cost and efficient way. During the austral summer of 2023/2024, we were able to deploy a DJI Mavic 3E series over an area with buried crevasses on GHOST Ridge, Thwaites Glacier to obtain aerial photography that can be used to do structure from motion (SfM). Additionally, we performed a survey over the WAIS divide remote field camp. The main goal of the experiment design on GHOST Ridge was to look for subtle indications of buried crevasses. |
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Simulation output and analysis code for Henry and Markowski's “Microscale variability of convective storm forecasting parameters in a numerical simulation of a strongly sheared, turbulent environment” by P. M. Markowski and B. Henry II. This dataset contains the simulation output and analysis code used by Henry and Markowski (2026) for their article, "Microscale variability of convective storm forecasting parameters in a numerical simulation of a strongly sheared, turbulent environment." |
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Relativistic Feedback Discharges in Dielectric Solids by V. P. Pasko, S. Celestin, and A. Bourdon. The photoelectric feedback processes leading to growth of relativistic runaway electron avalanches are believed to be responsible for extreme fluxes of gamma rays produced from very compact regions of space with dimensions on the order of hundred meters in association with lightning activity in the Earth's natural environment (Pasko et al., 2025, https://doi.org/10.1029/2025JD043897). Here we demonstrate for the first time that the same photoelectric feedback discharges can be realized on centimeter scales in common solid state dielectric materials, like quartz, acrylic and bismuth germanate. These discharge can serve as new sources of high energy X-ray radiation. |
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Species-Specific Anti-Tick Strategies in Sympatric Rodents: Behavioral and Physiological Responses to Blacklegged Tick Parasitism by J. E. Brown, P. Chuard, M. I. Esoldo, A. Russo, and E. T. Machtinger. Host-parasite coevolution may result in diverse defensive strategies across related species. We investigated how three sympatric Pennsylvania rodent species respond to blacklegged tick (Ixodes scapularis) parasitism through controlled laboratory experiments using wild-caught white-footed mice (Peromyscus leucopus), southern red-backed voles (Clethrionomys gapperi), and meadow voles (Microtus pennsylvanicus). |
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Revisiting Theories for the Growth of Single Crystalline Ice: Laboratory Data and Code to Compute the Crystal Shape Functions by J. Y. Harrington and G. F. Pokrifka. This data set comprises individual time-series data for crystals grown in the substrate crystal imaging chamber (Pokrifka et al., 2025) along with surrogate time-series data extracted from free fall chamber measurements (Takahashi et al., 1991). The data set includes Fortran 90 code to compute the crystal shape functions for cylinders (Nelson and Baker, 1996; Nelson, 2001) and for hexagonal prisms using data from the simulations of Wood et al. (2001). Data for the shape functions are also included along with python code to plot the shape function data and output from the Fortran 90 codes. |
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Revisiting Theories for the Growth of Single Crystalline Ice: Laboratory Data and Code to Compute the Crystal Shape Functions by Jerry Y. Harrington and Gwenore F. Pokrifka. |
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Skeletal Age Estimation Transition Analysis (TA3-V1.0) by George R. Milner (PI), Jesper L. Boldsen (co-PI), Stephen D. Ousley (co-PI). |
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Spatially separate production of hydrogen oxides and nitric oxide in lightning
by Jena M. Jenkins and William H. Brune |
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Information about strains in the Penn State E. coli Reference Center |