Data Products and Tools Available for Public Download

The open sharing of all TES-SFA data and model products and tools among researchers, the broader scientific community, and the public is critical to advancing the mission of DOE’s Program of Terrestrial Ecosystem Science.

>>> ORNL TES-SFA Data Policy - Data Policy and Fair-Use Statement

>>> Download the SPRUCE Data Management Plan as an example of the planning needed to start research data collection. -- Example Data Plan



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Data Product Contents - Click for each Project

  1. Microbial-ENzyme-mediated Decomposition (MEND) Model Products
  2. Walker Branch Watershed -- Recent Observations
  3. Walker Branch Watershed -- Historical Monitoring Data
  4. Measurements at the Missouri Ozark Flux (MOFLUX) Site
  5. LeafWeb
  6. Partitioning in Trees and Soil (PiTS) Project Data
  7. FOSSIL EMISSIONS
  8. SPRUCE

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Microbial-ENzyme-mediated Decomposition (MEND) Model Products

++++ Soil Respiration and Microbial Biomass from Soil Incubations with 13C Labeled Additions

This data set provides the respiration and soil microbial biomass data from a series of short and long-term laboratory incubation experiments with 13C labeled substrates to examine how plant communities (forest vs. grassland), edaphic properties, and microbial communities influence C cycling and the long-term fate of C in soil systems. Paired forest and grassland soils from four locations were incubated with 13C labeled glucose in a short-term (144 hours) study while 13C labeled cellulose was added to soils used in the long-term (729 days) study. Soil respiration, microbial biomass, and soil 13C values were monitored throughout the study.

Coming Soon -- Please contact Melanie Mayes (mayesma@ornl.gov) for more information.

User's Guide:    Coming Soon -- Data User's Guide

Data Files:        Coming Soon -- Download Soil Respiration and Microbial Biomass Data

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++++ Organic Carbon Sorption and Decomposition in Selected Global Soils

This data set reports the results of lab-scale experiments conducted to investigate the dynamics of organic carbon (C) decomposition from several soils from temperate, tropical, arctic, and sub-arctic environments. Results were used to test the newly developed soil microbe decomposition carbon model -- Microbial-ENzyme-mediated Decomposition (MEND). There are 25 *.csv data files included in this data set, a Data Dictionary, and two of the resulting published articles.

User's Guide:    Open Data User's Guide

Data Dictionary:    Open Data Dictionary

Data Files:        Download Data Files (25 files in one *.zip file)

Published papers describing laboratory experiments and development of MEND model parameters, respectively:  Jagadamma et al., 2014 and Wang et al., 2013

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Walker Branch Watershed -- Walker Branch Watershed -- Recent Observations

++++ Temperature Response of Organic-Matter Decomposition in a Headwater Stream

This data set reports the results of a field study investigating the effect of temperature on organic-matter decomposition in the West Fork of Walker Branch, a headwater stream on the Oak Ridge Reservation in east Tennessee.

User's Guide:    Open Data User's Guide

Data Files:        Download Data Files (six *.csv files in one *.zip file)

Published paper describing effect of temperature on organic-matter decomposition in a headwater stream:  Griffiths and Tiegs, 2016

Griffiths, N.A., and S. D. Tiegs. 2016. Organic-matter decomposition along a temperature gradient in a forested headwater stream. Freshwater Science. In press.

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Walker Branch Watershed -- Historical Monitoring Data

++++ Daily Climate and Soil Temperature Data

This data set reports daily climate and soil temperature data for Walker Branch Watershed. As part of the long-term Walker Branch project, daily climate and soil temperature data were collected using instruments on a meteorological tower located in an upper slope of the watershed. This data set contains one data file (*.csv) of daily climate and soil temperature data from 1993 through 2010.

User's Guide:    Open Data User's Guide

Data Files:        Download Climate and Soil Temperature Data

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++++ 15-minute and Daily Stream Discharge and Annual Runoff

This data set reports 15-minute and daily stream discharge, and annual runoff for the West and East Forks draining Walker Branch Watershed (WBW). The long-term Walker Branch Hydrology Monitoring project was intended to document changes in the water balance (precipitation inputs, stream discharge outputs) for the WBW over time. This data set contains three data files (*.csv) of stream discharge (L/s) for 15-minute and daily intervals, and annual runoff (cm). The daily and annual data sets began in 1969 in both East and West Forks, while the 15-minute data sets began in 1994 in both Forks. Data were collected through 2014 for the West Fork, and through 2012 for the East Fork.

User's Guide:    Open Data User's Guide

Data Files:        Download 15-minute Discharge Data

                         Download Daily Discharge Data

                         Download Annual Runoff Data

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++++ Hourly, Daily, and Annual Precipitation

This data set reports hourly, daily, and annual precipitation in Walker Branch Watershed (WBW). The long-term Walker Branch Hydrology Monitoring project was intended to document changes in the water balance (precipitation inputs, stream discharge outputs) for the WBW over time. This data set contains three data files (*.csv) of precipitation amount for hourly, monthly, and annual intervals for the years 1969 through 2012. Five rain gauges were used from 1969-1979, and two rain gauges were used from 1980-2012.

User's Guide:    Open Data User's Guide

Data Files:        Download Hourly Precipitation Data

                         Download Daily Precipitation Data

                         Download Annual Precipitation Data

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++++ Weekly Stream Water Chemistry

This data set reports weekly stream water chemistry in the West and East Forks of Walker Branch Watershed (WBW). The long-term Walker Branch stream chemistry monitoring is intended to provide data on watershed output of chemicals via streamflow and long-term changes in stream chemical composition. This data set contains two data files (*.csv) of stream water chemistry collected at weekly time intervals from 1989 through 2013.

User's Guide:    Open Data User's Guide

Data Files:        Download East Fork Chemistry Data

                         Download West Fork Chemistry Data

Walker Branch Watershed

++++ Long-Term Hydrology, Stream Ecology, Forest Characterization, and Biogeochemistry Data

Walker Branch watershed has been the site of long-term, intensive environmental studies since the late-1960's by staff from the Environmental Sciences Division at Oak Ridge National Laboratory, staff from the Atmospheric Turbulence and Diffusion Division, Air Resources Laboratory, National Oceanic and Atmospheric Administration in Oak Ridge, Tennessee, and many visiting university researchers.

Access additional Walker Branch Watershed historical site information at ORNL Website

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Measurements at the Missouri Ozark Flux (MOFLUX) Site

++++ Predawn Leaf Water Potential of Oak-Hickory Forest at Missouri Ozark (MOFLUX) Site: 2004-2014

This data set reports the measurements of predawn leaf water potential (PLWP) made at a weekly to biweekly frequency during the 2004 to 2014 growing seasons of the second-growth upland oak-hickory forests at the Missouri Ozark AmeriFlux (MOFLUX) site. The MOFLUX site is located in the University of Missouri Baskett Wildlife Research area (BWREA), situated in the Ozark region of central Missouri, USA.

User's Guide:    Open Data User's Guide

Data Files:        Download Data File (one *.csv file)

Published paper describing predawn leaf water potential measurements:  Gu et al., 2015 and Supplemental material

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Missouri Ozark Flux Tower

++++ Flux Measurements at the Missouri Ozark Flux (MOFLUX)

The MOFLUX site is part of the AmeriFlux network and site characteristic and data are available from the AmeriFlux web site (https://ameriflux.lbl.gov/). The MOFLUX data acquisition systems include EC instrumentation, meteorological and radiation sensors, vertical profiles of CO2, H2O, temperature and humidity, soil respiration systems, minirhizontron observations, and vertical profiles of soil temperature and water content.

Access MOFLUX Measurement Data

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Impact of mesophyll diffusion on estimated global land CO2 fertilization.

A new publication by: Ying Sun(a), Lianhong Gu(b,1), Robert E. Dickinson(a,1), Richard J. Norby(b), Stephen G. Pallardy(c), and Forrest M. Hoffman(d)

(a)Department of Geological Sciences, University of Texas at Austin, Austin, TX 78712; (b)Environmental Sciences Division and Climate Change Science Institute,
Oak Ridge National Laboratory, Oak Ridge, TN 37831; (c)Department of Forestry, University of Missouri, Columbia, MO 65211; and (d)Climate Change
Science Institute and Computational Earth Sciences Group, Oak Ridge National Laboratory, Oak Ridge, TN 37831

Citation: Ying Sun, Lianhong Gu, Robert E. Dickinson, Richard J. Norby, Stephen G. Pallardy, and Forrest M. Hoffman. Impact of mesophyll diffusion on estimated global land CO2 fertilization. PNAS 2014 ; published ahead of print October 13, 2014, doi:10.1073/pnas.1418075111

Abstract:
In C3 plants, CO2 concentrations drop considerably along mesophyll diffusion pathways from substomatal cavities to chloroplasts where CO2 assimilation occurs. Global carbon cycle models have not explicitly represented this internal drawdown and therefore overestimate CO2 available for carboxylation and underestimate photosynthetic responsiveness to atmospheric CO2. An explicit consideration of mesophyll diffusion increases the modeled cumulative CO2 fertilization effect (CFE) for global gross primary production (GPP) from 915 to 1,057 PgC for the period of 1901–2010. This increase represents a 16% correction, which is large enough to explain the persistent overestimation of growth rates of historical atmospheric CO2 by Earth system models. Without this correction, the CFE for global GPP is underestimated by 0.05 PgC/y/ppm. This finding implies that the contemporary terrestrial biosphere is more CO2 limited than previously thought.

>++++ Tool for Evaluating Mesophyll Impact on Predicting Photosynthesis (TEMIPP):

TEMIPP is a Microsoft Excel Spreadsheet-based tool used for demonstrating the impact of lacking an explicit representation of mesophyll diffusion in a photosynthetic model on the predicted response of photosynthesis to the increase in CO2 partial pressures.

Download TEMIPP

Instruction to Use the Tool for Evaluating Mesophyll Impact on Predicting Photosynthesis (TEMIPP):

Download TEMIPP Instructions
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LeafWeb

LeafWeb is a TES SFA-funded web-based tool for the automated numerical analyses of leaf gas exchange measurements. LeafWeb is a SErvice-in-Exchange-for-Data-Sharing (SEEDS) Project. With the approval of the user, the data LeafWeb receives are preserved and added to a global database of biochemical, physiological, and biophysical properties of single leaves to support studies of plant functions and terrestrial carbon cycle modeling.

Access LeafWeb at http://leafweb.ornl.gov/.

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Partitioning in Trees and Soil (PiTS) Project Data

++++ PiTS-1: Carbon Partitioning in Loblolly Pine after 13C Labeling and Shade Treatments

This data set reports the results of the Partitioning in Trees and Soil (PiTS-1) field investigation that examined how carbon partitioning in a stand of loblolly pine trees varied with short-term changes in gross primary production (GPP) due to shading. These measurements were made over range of June 2010 through May 2011 with most samples and measurements collected from July to September 2010 near the 13CO2 labeling event. There are 19 comma-separated ASCII data files provided with this data set.

User's Guide:    Open Data User's Guide

Data Files:        Download Data Files (19 files in one *.zip file)

Published paper describing the PiTS-1 investigation and results (Warren et al., 2012):    Open Warren et al., 2012

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FOSSIL EMISSIONS

++++ Global, Regional, and National Fossil-Fuel CO2 Emissions

Each year estimates of carbon releases from fossil-fuel consumption and cement production are generated. Emissions from fossil-fuel burning represent the largest anthropogenic source of carbon to the atmosphere and are an important contributor to elevated atmospheric CO2 levels. Annual fossil-fuel CO2 emission time series are prepared at global and national scales and these time series serve as building blocks for other data products including gridded (1 x 1) emission time series. Details regarding the methods used to produce these time series and data products may be found on the CDIAC website.

Access Emission Data and Documentation

Boden, T.A., G. Marland, and R.J. Andres. 2013. Global, Regional, and National Fossil-Fuel CO2 Emissions. Carbon Dioxide Information Analysis Center, Oak Ridge National Laboratory, U.S. Department of Energy, Oak Ridge, Tenn., U.S.A. doi 10.3334/CDIAC/00001_V2013
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SPRUCE (Spruce and Peatland Responses Under Changing Environments)

SPRUCE Data Available for Public Download.

Access SPRUCE Data and Documentation

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