SNAP
A lagrangian type atmospheric dispersion model specialized on modelling dispersion of radioactive debris.
https://github.com/metno/snap
Category: Atmosphere
Sub Category: Atmospheric Dispersion and Transport
Keywords from Contributors
aerocom aerosol climate-science earth-observation model-evaluation air-quality
Last synced: less than a minute ago
JSON representation
Repository metadata
Severe Nuclear Accident Programme
- Host: GitHub
- URL: https://github.com/metno/snap
- Owner: metno
- License: gpl-3.0
- Created: 2017-10-30T09:34:18.000Z (over 7 years ago)
- Default Branch: master
- Last Pushed: 2025-04-16T14:34:06.000Z (11 days ago)
- Last Synced: 2025-04-17T23:51:48.954Z (10 days ago)
- Language: Fortran
- Homepage:
- Size: 17.1 MB
- Stars: 24
- Watchers: 5
- Forks: 8
- Open Issues: 5
- Releases: 9
-
Metadata Files:
- Readme: README.md
- Contributing: CONTRIBUTING.md
- License: COPYING
- Authors: AUTHORS
README.md
SNAP
SNAP, the Severe Nuclear Accident Programme is a lagrangian type
atmospheric dispersion model specialized on modelling dispersion
of radioactive debris. A model description can be found at
this link.
Meteorological input fields
SNAP needs meteorological driver data from NWP models in sigma or
eta-hybrid model-levels, in the netcdf format. The minimum
list of parameters are for the surface layer:
- surface-air-pressure
- precipitation (eventually split into convective and large-scale)
- x- and y-wind-10m
And for the model layers:
- x- and y-wind
- air-temperature or potential-temperature
- ap and b hybrid level values, or sigma level values
Parameter names can be specified in readfield_nc.f90.
And example on how to set up downloading of freely available meteorological data
from the NOAA GFS model can be found under src/naccident/examples/gfs/
Dependencies
SNAP requires the following libraries and programs to be installed for
compilation
- fortran77/90 compiler, e.g. gfortran or ifort
- NetCDF (netcdf > 4.1.1)
- NetCDF-fortran
- Python3 (optional)
- git (optional)
- fimex (optional)
Installation
Create a file current.mk in the src directory. Use e.g the file
ubuntuXenial.mk
as a template. The most important parameters to modify are NCDIR and
BINDIR, where the final files will be installed to.
THE MIINC and MILIB should be uncommented.
In the src directory run then:
make install
This will install bsnap_naccident to BINDIR. Run SNAP using
the command
bsnap_naccident snap.input
Examples of snap.input can be found in the directory src/naccident/examples/.
Versioning
The master branch in git is used for development. Stable versions are tagged as 'vX.YY.ZZ'. Releases should also have a DOI for citation, see https://doi.org/10.5281/zenodo.1155159 . For the user-interface snappy, we use tags like 'snappy-vX.YY.ZZ' with independent version numbers. Other tags are used internally.
The build system uses automatic versioning based on git tags and revision numbers and embeds this into the resulting program. If git or python3 is unavailable, this logic should be bypassed by setting the environment variable VERSION to some value, e.g.
env VERSION="some_version_number" make install
License
SNAP: Servere Nuclear Accident Programme
Copyright (C) 1992-2023 Norwegian Meteorological Institute
SNAP is free software: you can
redistribute it and/or modify it under the terms of the
GNU General Public License as published by the
Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program, i.e. see COPYING for more information.
If not, see <https://www.gnu.org/licenses/>.
Owner metadata
- Name: Norwegian Meteorological Institute
- Login: metno
- Email:
- Kind: organization
- Description: MET Norway is the meteorological service for military and civil services as well as the general public in Norway.
- Website: https://www.met.no
- Location: Norway
- Twitter:
- Company:
- Icon url: https://avatars.githubusercontent.com/u/893264?v=4
- Repositories: 211
- Last ynced at: 2023-03-12T03:15:47.942Z
- Profile URL: https://github.com/metno
GitHub Events
Total
- Create event: 28
- Issues event: 10
- Watch event: 2
- Delete event: 17
- Member event: 1
- Issue comment event: 9
- Push event: 73
- Pull request review event: 23
- Pull request review comment event: 11
- Pull request event: 38
- Fork event: 2
Last Year
- Create event: 28
- Issues event: 10
- Watch event: 2
- Delete event: 17
- Member event: 1
- Issue comment event: 9
- Push event: 73
- Pull request review event: 23
- Pull request review comment event: 11
- Pull request event: 38
- Fork event: 2
Committers metadata
Last synced: 7 days ago
Total Commits: 1,716
Total Committers: 16
Avg Commits per committer: 107.25
Development Distribution Score (DDS): 0.383
Commits in past year: 177
Committers in past year: 3
Avg Commits per committer in past year: 59.0
Development Distribution Score (DDS) in past year: 0.497
| Name | Commits | |
|---|---|---|
| Heiko Klein | h****n@m****o | 1058 |
| Magnus Ulimoen | m****u@m****o | 578 |
| André Brodtkorb | a****b@m****o | 35 |
| Daniel Heinesen | d****h@m****o | 12 |
| Heiko Klein | h****k@g****o | 10 |
| charlien | c****n@m****o | 5 |
| Charlie Negri | c****i@m****o | 4 |
| agnesny | a****y@m****o | 3 |
| Jerzy Bartnicki | j****b@m****o | 3 |
| emepgrp | e****p@p****o | 2 |
| Juergen Schulze | j****s@m****o | 1 |
| ?? | r****t@m****o | 1 |
| Charlie Negri | c****n@p****o | 1 |
| Daniel Heinesen | d****h@p****o | 1 |
| Daniel Heinesen | d****h@p****o | 1 |
| emepgrp | e****p@x****o | 1 |
Committer domains:
- met.no: 10
- ppi-blogin-b1.int.met.no: 2
- xvis-m4b.met.no: 1
- pc5354.pc.met.no: 1
- pc5619.pc.met.no: 1
- glint.met.no: 1
Issue and Pull Request metadata
Last synced: 1 day ago
Total issues: 18
Total pull requests: 115
Average time to close issues: 8 days
Average time to close pull requests: 13 days
Total issue authors: 2
Total pull request authors: 5
Average comments per issue: 0.78
Average comments per pull request: 0.6
Merged pull request: 108
Bot issues: 0
Bot pull requests: 0
Past year issues: 5
Past year pull requests: 21
Past year average time to close issues: 17 days
Past year average time to close pull requests: 6 days
Past year issue authors: 1
Past year pull request authors: 3
Past year average comments per issue: 1.2
Past year average comments per pull request: 0.14
Past year merged pull request: 20
Past year bot issues: 0
Past year bot pull requests: 0
Top Issue Authors
- heikoklein (17)
- babrodtk (1)
Top Pull Request Authors
- heikoklein (54)
- magnusuMET (52)
- dulte (7)
- babrodtk (1)
- agnesny (1)
Top Issue Labels
- enhancement (4)
- bug (3)
- wontfix (2)
Top Pull Request Labels
Dependencies
- actions/checkout v2 composite
Score: 6.139884552226255