05.09.2007 - New version 1.1.0. Release SISL code and port NH code to Hirlam 7.1.0
05.09.2007 - Add Technical report semi-implicit semi-Lagrangian scheme
20.10.2003 - New version 0.9.0. Port NH code to Hirlam 6.1.0
3.10.2003 - Added references to scientific papers plus content
updates
27.08.2002 - Technical report on semi-implicit Eulerian scheme
available
21.03.2002 - New version 0.8.1 with important bugfix and SHMEM
port
14.03.2002 - Launch of the website
The non-hydrostatic HIRLAM is an extension of the numerical weather
prediction model HIRLAM to
take account non-hydrostatic effects of the
atmospheric dynamics. The non-hydrostatic HIRLAM is developed and
maintained by R.
Rõõm and
A. Männik
with the help and contributions from HIRLAM community.
It is acoustically filtered
model and supports the explicit and semi-implicit Eulerian and
semi-implicit semi-Lagrangian
time-integration
schemes. For the detatiled description of the model please have a look
at HIRLAM Technical Reports.
The non-hydrostatic code is currently based on the reference HIRLAM
version 7.1.0.
The latest "official" version of the non-hydrostatic HIRLAM is 1.1.0.
HIRLAM Technical Reports (in PDF format):
Scientific papers:
- Männik A., R. Rõõm, A. Luhamaa, 2003:
Nonhydrostatic
generalization of pressure-coordinate based hydrostatic model with
implementation in HIRLAM: Validation of adiabatic core. Tellus A,
55, 219 - 231.
- Männik A., 2003: Implementation and Validation of the
Nonhydrostatic
Adiabatic Core of the Numerical Weather Prediction Model HIRLAM. Dissertationes
Geophysicales Universitatis Tartuensis, 87p.
Very little documentation is included with releases in directory
doc/
The code is useless without the HIRLAM
reference system. Please look here for terms of
obtaining the HIRLAM code.
The releases of the non-hydrostatic code can be downloaded from here .
Please contact us to get the login information.
It is difficult to develop the code which would satisfy every user. To
get
more efficient code, different centers may introduce changes which suit
them
better, but are not part of "official" releases. If they want to share
their
changes with the rest of community, this is right place to do it. Maybe
these
extensions will be part of "official" release someday.
Here is the list of known problems of non-hydrostatic code, which
hopefully
get fixed in next releases.
- The nonhydrostatic model does not coexist with DFI scheme. It
should be possible to make them work together if DFI is supplied with
parameters for hydrostatic code.
If you have questions and problems related to non-hydrostatic HIRLAM,
please contact aarne.mannik@ut.ee
or rein.room@ut.ee .
Created by: Aarne
Männik
Last updated: 05 September 2007