COSMO5.0 simulation: Too cold in winter – in #9: CCLM
in #9: CCLM
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<p>
Dear all,
</p>
<p>
I set up a new simulation with the new version of
<span class="caps">
COSMO
</span>
-
<span class="caps">
CLM
</span>
(5.0.9). The driven data is
<span class="caps">
ERA
</span>
-Interim and simulation region is
<span class="caps">
CORDEX
</span>
-EU. All the settings are following the
<span class="caps">
CORDEX
</span>
-EU suggestions. However, I found that the
<span class="caps">
CCLM
</span>
simulates a too cold winter (with a large
<span class="caps">
BIAS
</span>
: <-2 degree Celsius) in the
<span class="caps">
CORDEX
</span>
-EU region. The temperature in summer seems comparable with the observation (
<span class="caps">
CRU
</span>
). The
<span class="caps">
BIAS
</span>
of precipitation in summer (
<span class="caps">
JJA
</span>
) and winter (
<span class="caps">
DJF
</span>
) are acceptable. Following some statistic metrics, the
<span class="caps">
BIAS
</span>
,
<span class="caps">
ACC
</span>
(anomaly correlation coefficient) and
<span class="caps">
PCC
</span>
(pattern correlation coefficient). Then, I attach the
<span class="caps">
YUSPECIF
</span>
and some plots about this simulation. Do you have any idea about the cold
<span class="caps">
BIAS
</span>
? How to fix it? Thank you very much.
</p>
<p>
annual JJA DJF
BIAS -1.23 0.45 -2.64
<br/>
tas ACC 0.91 0.92 0.9
PCC 0.99 0.99 0.95
</p>
<p>
BIAS -0.04 -0.3 0.08
<br/>
pr ACC 0.8 0.73 0.89
PCC 0.98 0.96 0.96
</p>
<p>
Best regards,
<br/>
Bo
</p>
<p>
Dear all,
</p>
<p>
I set up a new simulation with the new version of
<span class="caps">
COSMO
</span>
-
<span class="caps">
CLM
</span>
(5.0.9). The driven data is
<span class="caps">
ERA
</span>
-Interim and simulation region is
<span class="caps">
CORDEX
</span>
-EU. All the settings are following the
<span class="caps">
CORDEX
</span>
-EU suggestions. However, I found that the
<span class="caps">
CCLM
</span>
simulates a too cold winter (with a large
<span class="caps">
BIAS
</span>
: <-2 degree Celsius) in the
<span class="caps">
CORDEX
</span>
-EU region. The temperature in summer seems comparable with the observation (
<span class="caps">
CRU
</span>
). The
<span class="caps">
BIAS
</span>
of precipitation in summer (
<span class="caps">
JJA
</span>
) and winter (
<span class="caps">
DJF
</span>
) are acceptable. Following some statistic metrics, the
<span class="caps">
BIAS
</span>
,
<span class="caps">
ACC
</span>
(anomaly correlation coefficient) and
<span class="caps">
PCC
</span>
(pattern correlation coefficient). Then, I attach the
<span class="caps">
YUSPECIF
</span>
and some plots about this simulation. Do you have any idea about the cold
<span class="caps">
BIAS
</span>
? How to fix it? Thank you very much.
</p>
<p>
annual JJA DJF
BIAS -1.23 0.45 -2.64
<br/>
tas ACC 0.91 0.92 0.9
PCC 0.99 0.99 0.95
</p>
<p>
BIAS -0.04 -0.3 0.08
<br/>
pr ACC 0.8 0.73 0.89
PCC 0.98 0.96 0.96
</p>
<p>
Best regards,
<br/>
Bo
</p>
I set up a new simulation with the new version of
COSMO
-
CLM
(5.0.9). The driven data is
ERA
-Interim and simulation region is
CORDEX
-EU. All the settings are following the
CORDEX
-EU suggestions. However, I found that the
CCLM
simulates a too cold winter (with a large
BIAS
: <-2 degree Celsius) in the
CORDEX
-EU region. The temperature in summer seems comparable with the observation (
CRU
). The
BIAS
of precipitation in summer (
JJA
) and winter (
DJF
) are acceptable. Following some statistic metrics, the
BIAS
,
ACC
(anomaly correlation coefficient) and
PCC
(pattern correlation coefficient). Then, I attach the
YUSPECIF
and some plots about this simulation. Do you have any idea about the cold
BIAS
? How to fix it? Thank you very much.
<p>
Please see the temperature differences for
<span class="caps">
CCLM
</span>
5.0_clm9 to
<span class="caps">
EOBS
</span>
in the attachment and the
<span class="caps">
YUSPECIF
</span>
for a five year simulation 1980-1984 driven by
<span class="caps">
ERAI
</span>
nterim.
<br/>
There is no such negativ bias as you have in your simulation.
<br/>
In the following are the main differences between your and my
<span class="caps">
YUSPECIF
</span>
.
<br/>
When you find which of the parameters is the bad guy, please let us know.
</p>
<p>
<pre>
You Me<br/>
mu_rain 0.0000 0.5000<br/>
entr_sc 0.0002 0.0003<br/>
fac_rootdp2 0.9000 1.0000<br/>
rlwidth 586666.0000 500000.0000<br/>
itype_conv 3 0<br/>
hincrad 0.0000 1.0000<br/>
nincconv 1 2<br/>
ico2_rad 8 2</pre>
</p>
<p>
</p>
<p>
Please see the temperature differences for
<span class="caps">
CCLM
</span>
5.0_clm9 to
<span class="caps">
EOBS
</span>
in the attachment and the
<span class="caps">
YUSPECIF
</span>
for a five year simulation 1980-1984 driven by
<span class="caps">
ERAI
</span>
nterim.
<br/>
There is no such negativ bias as you have in your simulation.
<br/>
In the following are the main differences between your and my
<span class="caps">
YUSPECIF
</span>
.
<br/>
When you find which of the parameters is the bad guy, please let us know.
</p>
<p>
<pre>
You Me<br/>
mu_rain 0.0000 0.5000<br/>
entr_sc 0.0002 0.0003<br/>
fac_rootdp2 0.9000 1.0000<br/>
rlwidth 586666.0000 500000.0000<br/>
itype_conv 3 0<br/>
hincrad 0.0000 1.0000<br/>
nincconv 1 2<br/>
ico2_rad 8 2</pre>
</p>
<p>
</p>
Please see the temperature differences for
CCLM
5.0_clm9 to
EOBS
in the attachment and the
YUSPECIF
for a five year simulation 1980-1984 driven by
ERAI
nterim.
There is no such negativ bias as you have in your simulation.
In the following are the main differences between your and my
YUSPECIF
.
When you find which of the parameters is the bad guy, please let us know.
<p>
I have performed a simulation with the same
<span class="caps">
YUSPECIF
</span>
as yours (except the period: 1980-1984).
<br/>
The comparison to
<span class="caps">
EOBS
</span>
data shows no such large errors as your results (see attachment).
<br/>
Maybe there is an error in the pre- or postprocessing of your data?
</p>
<p>
I have performed a simulation with the same
<span class="caps">
YUSPECIF
</span>
as yours (except the period: 1980-1984).
<br/>
The comparison to
<span class="caps">
EOBS
</span>
data shows no such large errors as your results (see attachment).
<br/>
Maybe there is an error in the pre- or postprocessing of your data?
</p>
I have performed a simulation with the same
YUSPECIF
as yours (except the period: 1980-1984).
The comparison to
EOBS
data shows no such large errors as your results (see attachment).
Maybe there is an error in the pre- or postprocessing of your data?
<p>
Hi Burkhardt,
</p>
<p>
thank you very much. I also found that there is no big changes in the simulation with your
<span class="caps">
YUSPECIF
</span>
. I try to find the reason for such large biases from my post-processing. I will let you know when I find it.
</p>
<p>
Greetings,
<br/>
Bo
</p>
<p>
Hi Burkhardt,
</p>
<p>
thank you very much. I also found that there is no big changes in the simulation with your
<span class="caps">
YUSPECIF
</span>
. I try to find the reason for such large biases from my post-processing. I will let you know when I find it.
</p>
<p>
Greetings,
<br/>
Bo
</p>
thank you very much. I also found that there is no big changes in the simulation with your
YUSPECIF
. I try to find the reason for such large biases from my post-processing. I will let you know when I find it.
<p>
Hi Bo,
</p>
<p>
do you have the
<span class="caps">
CRU
</span>
and model data at vilje or norstore? If you can send me the directory, I will have a look as well.
<br/>
(also compare versus
<span class="caps">
EOBS
</span>
)
</p>
<p>
Best regards
<br/>
Andreas
</p>
<p>
Hi Bo,
</p>
<p>
do you have the
<span class="caps">
CRU
</span>
and model data at vilje or norstore? If you can send me the directory, I will have a look as well.
<br/>
(also compare versus
<span class="caps">
EOBS
</span>
)
</p>
<p>
Best regards
<br/>
Andreas
</p>
COSMO5.0 simulation: Too cold in winter
Dear all,
I set up a new simulation with the new version of COSMO - CLM (5.0.9). The driven data is ERA -Interim and simulation region is CORDEX -EU. All the settings are following the CORDEX -EU suggestions. However, I found that the CCLM simulates a too cold winter (with a large BIAS : <-2 degree Celsius) in the CORDEX -EU region. The temperature in summer seems comparable with the observation ( CRU ). The BIAS of precipitation in summer ( JJA ) and winter ( DJF ) are acceptable. Following some statistic metrics, the BIAS , ACC (anomaly correlation coefficient) and PCC (pattern correlation coefficient). Then, I attach the YUSPECIF and some plots about this simulation. Do you have any idea about the cold BIAS ? How to fix it? Thank you very much.
annual JJA DJF BIAS -1.23 0.45 -2.64
tas ACC 0.91 0.92 0.9 PCC 0.99 0.99 0.95
BIAS -0.04 -0.3 0.08
pr ACC 0.8 0.73 0.89 PCC 0.98 0.96 0.96
Best regards,
Bo
Please see the temperature differences for CCLM 5.0_clm9 to EOBS in the attachment and the YUSPECIF for a five year simulation 1980-1984 driven by ERAI nterim.
There is no such negativ bias as you have in your simulation.
In the following are the main differences between your and my YUSPECIF .
When you find which of the parameters is the bad guy, please let us know.
You Memu_rain 0.0000 0.5000
entr_sc 0.0002 0.0003
fac_rootdp2 0.9000 1.0000
rlwidth 586666.0000 500000.0000
itype_conv 3 0
hincrad 0.0000 1.0000
nincconv 1 2
ico2_rad 8 2
I have performed a simulation with the same YUSPECIF as yours (except the period: 1980-1984).
The comparison to EOBS data shows no such large errors as your results (see attachment).
Maybe there is an error in the pre- or postprocessing of your data?
Hi Burkhardt,
thank you very much. I also found that there is no big changes in the simulation with your YUSPECIF . I try to find the reason for such large biases from my post-processing. I will let you know when I find it.
Greetings,
Bo
Hi Bo,
do you have the CRU and model data at vilje or norstore? If you can send me the directory, I will have a look as well.
(also compare versus EOBS )
Best regards
Andreas