blendss 🍹

Combine multiple DSS files into one for post-processing, and model comparison.

Merge files from the command line

python -m blendss "studies.toml" --fv "calsim3"

Example

I have two DSS files, as described below:

• DSS #1, This is a DSS file that contains model outputs from a published study. One of the outputs is /MODEL/RESULT/FLOW///L2020A/.
• DSS #2, This is a DSS file that I made, which contins model outputs from my own study. The /MODEL/RESULT/FLOW///L2020A/ is also in my dataset.

I want to compare the results of these models by looking at /MODEL/RESULT/FLOW///L2020A/. The problem is, I need to carry around both of these DSS files if I want to do that.

I need to blend these DSS files together!

If I use blendss, I can combine the two DSS files like this:

• From DSS #1, we copy /MODEL/RESULT/FLOW///L2020A/ to the new DSS file, renaming it to /PUBLISED/RESULT/FLOW///L2020A/.
• From DSS #2, we copy /MODEL/RESULT/FLOW///L2020A/ to the new DSS file, renaming it to /MINE/RESULT/FLOW///L2020A/.

Since we a are changing the A-part of the DSS path, these two datasets don't collide. We can choose the new A-part to be descriptive, so the content semi-self-docuemnts.

How do I do this with blendss?

1. Create a toml configuration file that looks like this:

[[study]]
a="PUBLISHED"
dss="/path/to/DSS#1.dss"

[[study]]
a="MINE"
dss="/path/to/DSS#2.dss"

2. Create a fv file that looks like this:

B	C
RESULT	FLOW

3. Run blendss:

python -m blendss "path/to/your/config.toml" --fv "/path/to/your/config.fv"

You can even use one of our built-in fv files like this:

python -m blendss "path/to/your/config.toml" --fv "calsim3"

Included FV files

• calsim3.fv: Standard paths read from the CalSim3 DV file.

Data flow

flowchart LR
    BLENDER[[blendss]]
    BLEND[(`blended.dss`)]
    A[(base_study.dss)]
    B[(exploration_study.dss)]
    C[(published_study.dss)]

    A --> BLENDER
    B --> BLENDER
    C --> BLENDER

    BLENDER --> BLEND

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