Data Summary:Community Multiscale Air Quality (CMAQ) Model Version 5.1 output data from a 01/01/2013 - 12/31/2013 CONUS simulation. Note:The datasets are on a Google Drive. The metadata associated with this DOI contain the link to the Google Drive folder and instructions for downloading the data. File Location and Download Instructions: The 2013 model output are available in two forms. The hourly datasets are a set of monthly files with surface-layer hourly concentrations for a model domain that encompasses the contiguous U.S. with a horizontal grid resolution of 12km x 12km. The daily average dataset is a single file with a year of daily average data for the same domain. Link to hourly data Link to daily average data Download instructions File Format:The 2013 model output are stored as netcdf formatted files using I/O API data structures (https://www.cmascenter.org/ioapi/). Information on the model projection and grid structure is contained in the header information of the netcdf file. The output files can be opened and manipulated using I/O API utilities (e.g. M3XTRACT, M3WNDW) or other software programs that can read and write netcdf formatted files (e.g. Fortran, R, Python). Model Variables Variable names in hourly data files: Variable Name, Units, Variable Description CO, ppb, carbon monoxide NO, ppb, nitric oxide NO2, ppb, nitrogen dioxide O3, ppb, ozone SO2, ppb, sulfur dioxide SO2_UGM3, micrograms/m^3, sulfur dioxide AECIJ, micrograms/m^3, aerosol elemental carbon (sum of i-mode and j-mode)* AOCIJ, micrograms/m^3, aerosol organic carbon (sum of i-mode and j-mode)* ANO3IJ, micrograms/m^3, aerosol nitrate (sum of i-mode and j-mode)* TNO3, micrograms/m^3, total nitrate= NO3 (ANO3IJ)+ nitric acid (HNO3) ANH4IJ,micrograms/m^3, aerosol ammonium (sum of i-mode and j-mode)* ASO4IJ,micrograms/m^3, aerosol sulfate (sum of i-mode and j-mode)* PMIJ**, micrograms/m^3, total fine particulate matter (sum of i-mode and j-mode)* PM10**, micrograms/m^3, total particulate matter (sum of i-mode, j-mode, k-mode)* Variable names in daily data files: Note: All daily averages are computed using Local Standard Time (LST) Variable Name, Units, Variable Description CO_AVG, ppb, 24-hr average carbon monoxide NO_AVG, ppb, 24-hr average nitric oxide NO2_AVG, ppb, 24-hr average nitrogen dioxide O3_AVG, ppb, 24-hr average ozone O3_MDA8, ppb, Maximum daily 8-hr average ozone + SO2_AVG, ppb, 24-hr average sulfur dioxide SO2_UGM3_AVG, micrograms/m^3, 24-hr average sulfur dioxide AECIJ_AVG, micrograms/m^3, 24-hr average aerosol elemental carbon (sum of i-mode and j-mode)* AOCIJ_AVG, micrograms/m^3, 24-hr average aerosol organic carbon (sum of i-mode and j-mode)* ANO3IJ_AVG, micrograms/m^3, 24-hr average aerosol nitrate (sum of i-mode and j-mode)* TNO3_AVG, micrograms/m^3, 24-hr average total nitrate= NO3 (ANO3IJ)+ nitric acid (HNO3) ANH4IJ_AVG,micrograms/m^3, 24-hr average aerosol ammonium (sum of i-mode and j-mode)* ASO4IJ_AVG,micrograms/m^3, 24-hr average aerosol sulfate (sum of i-mode and j-mode)* PMIJ_AVG**, micrograms/m^3, 24-hr average total fine particulate matter (sum of i-mode and j-mode)* PM10_AVG**, micrograms/m^3, 24-hr average total particulate matter (sum of i-mode, j-mode, k-mode)* +The calculation of the MDA8 O3 variable is based on the current ozone NAAQS and is derived from the highest of the 17 consecutive 8-hr averages beginning with the 8-hr period from 7:00am to 3:00pm LST and ending with the 8-hr period from 11pm to 7am the following day. *CMAQ represents PM using three interacting lognormal distributions, or modes. Two modes, Aitken (i-mode) and accumulation (j-mode) are generally less than 2.5 microns in diameter while the coarse mode (k-mode) contains significant amounts of mass above 2.5 microns. **Note that modeled size distributions can also be used to output PM species that represent the aerosol mass that falls below a specific diameter, e.g. 2.5 um or 10um. The output variables that are based on the sharp cut-off method are typically very similar to the aggregate PMIJ (i+j mode) and PM10 (i+j+k mode) variables included in these files. Further information on particle size-composition distributions in CMAQv5.0 can be found in Nolte et al. (2015), https://doi.org/10.5194/gmd-8-2877-2015. Simulation Settings and Inputs: CMAQ Model Model version: 5.1Bi-directional NH3 air-surface exchange: Massad formulationChemical mechanism: CB05e51Aerosol module: aero6 Domain: Continental U.S. (CONUS) using a 12 km grid size and a Lambert Conformal projection assuming a spherical earth with radius 6370.0 km. Vertical Resolution: 35 layers from the surface to the top of the free troposphere with layer 1 nominally 19 m tall. Boundary Condition Inputs Hourly values from 2013 simulation of GEOS-Chem v9-01-02 with GEOS-5 meteorology inputs. Emissions Inputs Anthropogenic emissions: Emissions inventory label 2013ej. 2011 modeling platform version 6.2 with 2013 updates for fires, mobile sources, and mobile source (link...

Human DTI brain atlases have been generated at UNC-Chapel Hill for several age groups, by iterative joint deformable registration of training datasets into a single unbiased DTI average image. Atlases packages include an atlas DTI tensor image, atlas DTI property images (FA, MD, AD, RD), and single tensor tractography based fiber tracts of major tracts with related 3D planes for fiber profile information: genu, splenium, anterior and posterior limb of internal capsule, uncinate fasciculus.