With this email, we are sending you some important information on the following topics:
1) Updates on input data availability
2) Updates to the simulation protocol
3) Output file preparation
1)
In addition to the climate input data that was initially made available
on March 23rd, we have now uploaded HadGEM2-ES data for the RCP6.0
scenario, and IPSL-CM5A-LR data for the RCP2.6 scenario. Thus, data is
now available for the following models and scenarios/periods:
HadGEM2-ES/historical
HadGEM2-ES/rcp4p5
HadGEM2-ES/rcp6p0
HadGEM2-ES/rcp8p5
IPSL-CM5A-LR/historical
IPSL-CM5A-LR/rcp2p6
IPSL-CM5A-LR/rcp8p5
Moreover, for the following models and scenarios we have updated the surface air pressure (ps) data:
HadGEM2-ES/historical/ps
HadGEM2-ES/rcp8p5/ps
HadGEM2-ES/rcp4p5/ps
IPSL-CM5A-LR/historical/ps
IPSL-CM5A-LR/rcp8p5/ps
These surface air pressure (ps) data had to be updated because an
error had been introduced earlier during bias-correction, so that the
data had to be processed again. Unfortunately some of the erroneous data
had already been uploaded to the server, and thus there is a chance
that you may have downloaded it. We therefore have to ask you to discard
any surface air pressure (ps) data that you may have downloaded
previous to this email, and to replace it by the data that is now
available on the server. We are really sorry for this mistake on our
side, and we sincerely apologize for any inconvenience.
Please also note that some total wind speed
(wind) data zip-files previously available on the server were empty or
did not contain the complete data set (in particular, files for the
IPSL-CM5A-LR model and for the historical period and RCP6.0 of the
HadGEM2-ES model were affected). If you have downloaded incomplete wind
files, please download the complete ones that are now available on the
server. Unfortunately the complete files for IPSL-CM5A-LR/rcp8p5/wind
are still not available. They will be added as soon as possible. Again,
we apologize for the inconvenience caused by this.
Finally, please note that unrealistically high monthly-mean precipitation (pr) values
appear in some semi-arid regions such as the Sahel for some, but not
all, future scenarios, months, and grid cells. We are investigating the
cause of this problem and will try to provide corrected data soon. If
you use the precipitation data presently available on the server, please
be aware that the data will be replaced once the cause of the anomalies
has been identified.
We will keep you informed about additions and corrections to the input data archive.
2)
Several small flaws and omissions in the simulation protocol have been
brought to our attention since we published the finalized version
(thanks to all of you who reported these). An updated version of the
protocol, with changes highlighted, is available now on our website www.isimip.org
under "Simulation protocol". In the same place, these is an "Addendum"
list of all the changes that have been made relative to the original
finalized version. This list will be constantly amended as we keep
updating the protocol any time new issues come to our attention. We ask
you to always refer to the latest version of the protocol as available
on the website. We will also inform you via email about important
updates to the protocol.
3) As you start preparing your
first model output files, please see our website for shell scripts,
example files, and instructions that help you prepare your output files
in the correct format. Visit www.isimip.org
and click "Output data", then "output file preparation". Information on
the upload procedure will also be posted under "Output data" in the
future.
And one further note: If you are generating results in the biomes sector, please pay particular attention to the revised definitions and requested output for the FPAR and LAI variable (see the updated simulation protocol).
