smrt

Snow Microwave Radiative Transfer model to compute thermal emission and backscatter from snowpack

https://github.com/smrt-model/smrt

Science Score: 36.0%

This score indicates how likely this project is to be science-related based on various indicators:

  • CITATION.cff file
  • codemeta.json file
    Found codemeta.json file
  • .zenodo.json file
    Found .zenodo.json file
  • DOI references
  • Academic publication links
  • Committers with academic emails
    5 of 14 committers (35.7%) from academic institutions
  • Institutional organization owner
  • JOSS paper metadata
  • Scientific vocabulary similarity
    Low similarity (12.7%) to scientific vocabulary

Keywords

microwave modeling snow

Keywords from Contributors

projection interactive serializer cycles packaging charts network-simulation archival shellcodes hacking
Last synced: 9 months ago · JSON representation

Repository

Snow Microwave Radiative Transfer model to compute thermal emission and backscatter from snowpack

Basic Info
  • Host: GitHub
  • Owner: smrt-model
  • License: other
  • Language: Python
  • Default Branch: master
  • Homepage:
  • Size: 1.49 MB
Statistics
  • Stars: 61
  • Watchers: 19
  • Forks: 25
  • Open Issues: 11
  • Releases: 12
Topics
microwave modeling snow
Created over 9 years ago · Last pushed 9 months ago
Metadata Files
Readme Changelog License

README.md

Snow Microwave Radiative Transfer model

SMRT is a radiative transfer model to compute emission and backscatter from snowpack.

Getting started is easy, follow the instructions and explore the other repositories with examples in the 'smrt-model' github organization or read the detailed 'documentation'.

If you want to try without installing anything on your computer, use free mybinder.org notenooks: Binder.

If you want to try SMRT without coding, use SMRT-App.

You can also explore the documentation and find code examples via the AI Wiki. Please let us know your experience of using this via discussions.

Quick Installation

To install the latest stable release:

console pip install smrt

Alternatively, the latest developments are available using:

console pip install git+https://github.com/smrt-model/smrt.git

or by 'manual installation'.

A simple example

An example to calculate the brightness temperature from a one-layer snowpack.

```python

from smrt import makesnowpack, sensorlist, make_model

create a snowpack

snowpack = makesnowpack(thickness=[10.], # snowpack depth in m microstructuremodel="stickyhardspheres", density=320.0, # density in kg/m3 temperature=260, # temperature in Kelvin radius=100e-6) # scatterers raidus in m

create the sensor (AMSRE, channel 37 GHz vertical polarization)

radiometer = sensor_list.amsre('37V')

create the model including the scattering model (IBA) and the radiative transfer solver (DORT)

m = make_model("iba", "dort")

run the model

result = m.run(radiometer, snowpack)

print(result.TbV())

```

License information

See the file LICENSE.txt for terms & conditions for usage, and a DISCLAIMER OF ALL WARRANTIES.

DISCLAIMER: This version of SMRT is under peer review. Please use this software with caution, ask for assistance if needed, and let us know any feedback you may have.

Copyright (c) 2016-2025 Ghislain Picard, Melody Sandells, Henning Löwe.

Other contributions

  • Nina Maass: initial implementation of the sea-ice functions
  • Ludovic Brucker: initial implementation of the saline snow functions
  • Mai Winstrup: initial implementation of the sea-ice functions
  • Marion Leduc-Leballeur: test&debuging (snow and ice)
  • Carlo Marin: debuging of the wet permittivities.
  • Fanny Larue: debuging (LRM altimetry)
  • Justin Murfitt: debuging (lake-ice, LRM altimetry)
  • Julien Meloche: debuging (snow). Help to user
  • Janna Rücker: implementation of new sea-ice functions
  • Jacqueline Boutin: implementation of new sea-ice permittivity functions

Owner

  • Name: smrt-model
  • Login: smrt-model
  • Kind: organization

GitHub Events

Total
  • Create event: 12
  • Release event: 3
  • Issues event: 4
  • Watch event: 10
  • Delete event: 5
  • Member event: 1
  • Issue comment event: 21
  • Push event: 95
  • Pull request review event: 10
  • Pull request review comment event: 17
  • Pull request event: 30
  • Fork event: 6
Last Year
  • Create event: 12
  • Release event: 3
  • Issues event: 4
  • Watch event: 10
  • Delete event: 5
  • Member event: 1
  • Issue comment event: 21
  • Push event: 95
  • Pull request review event: 10
  • Pull request review comment event: 17
  • Pull request event: 30
  • Fork event: 6

Committers

Last synced: 9 months ago

All Time
  • Total Commits: 812
  • Total Committers: 14
  • Avg Commits per committer: 58.0
  • Development Distribution Score (DDS): 0.193
Past Year
  • Commits: 172
  • Committers: 7
  • Avg Commits per committer: 24.571
  • Development Distribution Score (DDS): 0.43
Top Committers
Name Email Commits
Ghislain Picard g****d@u****r 655
Hippolyte Signargout h****t@u****r 56
mjsandells m****s@c****k 41
NinaMaass n****s@u****e 24
JulienMeloche j****e@u****a 14
Mai Winstrup m****i@d****k 5
carlomarin c****i@g****m 5
Ghislain Picard g****h@u****r 4
Janna 9****r 3
Ben 5****n 1
Robbie *ice-floe* Mallett 4****t 1
dependabot[bot] 4****] 1
linazsche l****n@g****e 1
Mel Sandells m****s@r****k 1
Committer Domains (Top 20 + Academic)

Issues and Pull Requests

Last synced: 9 months ago

All Time
  • Total issues: 23
  • Total pull requests: 53
  • Average time to close issues: 10 months
  • Average time to close pull requests: 8 days
  • Total issue authors: 15
  • Total pull request authors: 11
  • Average comments per issue: 1.74
  • Average comments per pull request: 0.43
  • Merged pull requests: 37
  • Bot issues: 0
  • Bot pull requests: 2
Past Year
  • Issues: 4
  • Pull requests: 34
  • Average time to close issues: 3 months
  • Average time to close pull requests: 11 days
  • Issue authors: 3
  • Pull request authors: 5
  • Average comments per issue: 1.0
  • Average comments per pull request: 0.44
  • Merged pull requests: 23
  • Bot issues: 0
  • Bot pull requests: 0
Top Authors
Issue Authors
  • pikaqiu2002 (5)
  • cryptomare (2)
  • JulienMeloche (2)
  • robbiemallett (2)
  • carlettif (2)
  • zz246 (1)
  • easihene (1)
  • ECCCBen (1)
  • Anthony-MostlyHarmless (1)
  • mjsandells (1)
  • ghislainp (1)
  • ferranhema (1)
  • HeWhoLikesWaffles (1)
  • bigleaffrog (1)
  • carlomarin (1)
Pull Request Authors
  • JulienMeloche (17)
  • hsignarg (14)
  • jannapolar (8)
  • carlomarin (5)
  • dependabot[bot] (2)
  • maiwinstrup (2)
  • hexxawax (1)
  • mjsandells (1)
  • robbiemallett (1)
  • linazsche (1)
  • ECCCBen (1)
Top Labels
Issue Labels
Pull Request Labels
dependencies (2)

Packages

  • Total packages: 1
  • Total downloads: unknown
  • Total dependent packages: 0
  • Total dependent repositories: 0
  • Total versions: 2
proxy.golang.org: github.com/smrt-model/smrt
  • Versions: 2
  • Dependent Packages: 0
  • Dependent Repositories: 0
Rankings
Forks count: 5.0%
Dependent packages count: 5.4%
Average: 5.6%
Dependent repos count: 5.7%
Stargazers count: 6.2%
Last synced: 9 months ago

Dependencies

binder/requirements.txt pypi
  • matplotlib *
  • numpy *
  • pandas *
  • scipy *
  • xarray *
doc/rtd_requirements.txt pypi
  • Sphinx >=1.6
  • importlib *
  • karma_sphinx_theme *
  • matplotlib *
  • numpy *
  • oct2py *
  • pandas *
  • pytest *
  • scipy *
  • six *
  • uuid *
  • xarray *
pyproject.toml pypi
  • nosetest develop
  • numba >=0.40
  • numpy >=1.13
  • pandas >=0.20.3
  • python >=3.6
  • scipy >=1.0.0
  • xarray >=0.10.3
.github/workflows/pytest.yml actions
  • actions/checkout v3 composite
  • actions/setup-python v4 composite
setup.py pypi
.github/workflows/publish.yml actions
  • actions/checkout v4 composite
  • actions/download-artifact v3 composite
  • actions/setup-python v4 composite
  • actions/upload-artifact v3 composite
  • pypa/gh-action-pypi-publish release/v1 composite