This STILT documentation is intended for the modified Stochastic Time-Inverted Lagrangian Transport (STILT) model that includes an improved interface wrapper and enhancements improving the model’s applicability to fine-scale measurement and flux interpretation.

Model source code, tutorials, information about STILT, and documentation for model configuration are all freely available.

Confused? Take a step back and check out the About page.

Relevant manuscript

Fasoli, B., Lin, J. C., Bowling, D. R., Mitchell, L., and Mendoza, D.: Simulating atmospheric tracer concentrations for spatially distributed receptors: updates to the Stochastic Time-Inverted Lagrangian Transport model’s R interface (STILT-R version 2), Geosci. Model Dev., 11, 2813-2824, 10.5194/gmd-11-2813-2018, 2018.

Quick Start

Familiar with the workflow and ready to start a new STILT project?

  1. Initialize project with Rscript -e "uataq::stilt_init('myproject')"
    Rscript -e "uataq::stilt_init('myproject')"
    Cloning into 'stilt'...
    remote: Counting objects: 1712, done.
    remote: Compressing objects: 100% (275/275), done.
    remote: Total 1712 (delta 71), reused 267 (delta 39), pack-reused 1384
    Receiving objects: 100% (1712/1712), 32.85 MiB | 8.57 MiB/s, done.
    Resolving deltas: 100% (652/652), done.
    Checking connectivity... done.
    gfortran -fpic -g -O2 -fstack-protector --param=ssp-buffer-size=4 -c permute.f90 -o permute.o
    gfortran -shared -L/usr/lib/R/lib -Wl,-Bsymbolic-functions -Wl,-z,relro -o permute.o -L/usr/lib/R/lib -lR
    gfortran -c -O2 -fconvert=big-endian -frecord-marker=4 -fbounds-check -ffree-form -I. funits.f
  2. Edit settings in r/run_stilt.r
    cd myproject
    exe fortran out r setup stilt
    vim r/run_stilt.r
  3. Run model with Rscript r/run_stilt.r
    Rscript r/run_stilt.r
    Initializing STILT
    Number of receptors: 1
    Number of parallel threads: 1
    Estimated footprint grid RAM allocation: 314 MB
    Parallelization disabled. Executing simulations sequentially...

    Running simulation ID: 2015061822_-111.980323_40.782561_5

To get started, see Installation.