Pre-ABoVE: Gridded Footprints from WRF-STILT Model, Barrow, Alaska, 1982-2011

Description

This dataset provides Stochastic Time-Inverted Lagrangian Transport model outputs for receptors located at the NOAA Barrow Alaska Observatory for 12 selected years (15 August to 15 October) across the 30-year, 1982 to 2011, study timeframe. Meteorological fields from version 3.5.1 of the Weather Research and Forecasting model are used to drive STILT. STILT applies a Lagrangian particle dispersion model backwards in time from a measurement location (the "receptor" location), to create the adjoint of the transport model in the form of a "footprint" field. The footprint, with units of mixing ratio (ppm --- CO2; ppb --- CH4) per (umol m-2 s-1 --- CO2; nmol m-2 s-1 --- CH4), quantifies the influence of upwind surface fluxes on concentrations measured at the receptor and is computed by counting the number of particles in a surface-influenced volume and the time spent in that volume. The simulation results included in this dataset are crucial for understanding changes in Arctic carbon cycling and are part of a retrospective analysis to link changes in atmospheric composition at Arctic receptor sites with shifts in ecosystem structure and function. Each file provides the surface influence-function footprints on a lat/lon/time grid from WRF-STILT simulations for the receptor location.

Resources

Name Format Description Link
21 Search results for publications that cite this dataset by its DOI. https://scholar.google.com/scholar?q=10.3334%2FORNLDAAC%2F1544
21 This link allows direct data access via Earthdata login https://daac.ornl.gov/above/Alaska_L4_WRF_STILT_Footprints/
21 ORNL DAAC Data Set Documentation https://daac.ornl.gov/ABOVE/guides/Alaska_L4_WRF_STILT_Footprints.html
21 Data set Landing Page DOI URL https://doi.org/10.3334/ORNLDAAC/1544
34 The gridded STILT Footprint for August 15,1982 in 0.1-degree grid cells (from the file foot1982x08x15x06x00x71.3230Nx156.6114Wx00016.nc). https://daac.ornl.gov/ABOVE/guides/Alaska_L4_WRF_STILT_Footprints_Fig1.png
21 ABoVE project site https://above.nasa.gov
33 PDF of the guide document https://data.ornldaac.earthdata.nasa.gov/public/above/Alaska_L4_WRF_STILT_Footprints/comp/Alaska_L4_WRF_STILT_Footprints.pdf

Tags

  • atmosphere
  • atmospheric-chemistry
  • atmospheric-winds
  • earth-science

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