PMIP DB Newsletter 8
+---------------------------------------------------------+
| Updated state of the PMIP database as of May 22nd 97 |
| + |
| Comprehensive description of the reported and corrected |
| problems since the base was created |
+---------------------------------------------------------+
WARNING : the database can only be accessed by groups who have
contributed results. Other groups should ask Sylvie Joussaume or Karl
Taylor to grant them access.
You will find below, for each model, the list of changes and patches
applied to the variables *BEFORE May 22nd 97* (and since February 96).
IF YOU HAVE DOWNLOADED DATA FROM THE BASE BEFORE THIS DATE,
we strongly advise you to read this mail thoroughly and
GET THE UPDATED VARIABLES!!!
Updated state of the PMIP database as of May 22nd 97
====================================================
Detail of the available data :
Number of variables
MODEL 0cal 0fix 6fix 21cal 21fix
bmrc 282 282
ccc2.0 232 231
ccm1 217 217
ccm3 211 210
ccsr1 277 276 277
cnrm-2 225 222
csiro 246 245
echam3 226 224 225
gen1 193 193
gen2 242 242 237 242 227
giss-iip 158 157
lmcelmd4 187 186 185
lmcelmd5 193 192 191
mri2 283 282 283
ugamp 252 252 251 252 255
uiuc11 270 272
ukmo 151 256 255 151
yonu 248
and lln_nh_1 40
Size of the binary part of the base (in Kbytes) :
1383385 Binary
or, more precisely
143149 0cal
436416 0fix
143036 21cal
203535 21fix
457248 6fix
From now on, we will send a monthly update of what has changed in the
database (if something has changed). The update will be sent to
everyone registered in the PMIP subprojects mailing lists and will be
available in the /pub/pmip directory on yoda.llnl.gov. You will also
be able to access it on the PMIP web page (currently under
construction). No existing variable will be changed in the base until
two or three days before we send you a mail with the new state of the
database.
Notes about the base
....................
We have found it useful to introduce a new PMIP variable (this is an
update of the description of the required variables given in
Newsletter #6) :
rss W/(m^2) Net Surface Shortwave Radiation + down
We decided this since rsds and rsus were not available separately in
some models. We have computed this variable in the database for all
the models that had rsds and rsus.
Anyone using the the ASCII part of the database should inform us. If
it appears that people are only using the ".nc" netCDF files, we may
remove the ASCII part of the base.
All you need to know about the netCDF data format may be found at
http://www.unidata.ucar.edu/packages/netcdf
We suggest that you use the following program and library to study and
access PMIP data :
VCS : http://www-pcmdi.llnl.gov/software/vcs/
EzGet : http://www-pcmdi.llnl.gov/software/ezget
Reported and corrected problems
...............................
We have run some quality control tests (described at the end of this
mail) on boundary conditions variables and have spotted some obvious
problems but there is still a good chance that erroneous variables
remain in the base. Very few people have worked with the variances,
for instance, and we can't tell you how reliable they are.
When you find something wrong, please let us know about it by sending
email to :
jypeter (NEW! Please check the PMIP 'Contacts' web page)
or paleo (NEW! Please check the PMIP 'Contacts' web page)
The changes applied to the binary part of the base have also been
applied to the ASCII part. If you find something inconsistent between
the two parts, you should let us know, and temporarily assume the
binary version is correct.
MAJOR changes
=============
Several data sets sent to our database were *NOT* PMIP simulations
(usually due to boundary conditions problems). Read this section and
the next one to determine if you have retrieved data sets that are
flawed.
bmrc
----
* bmrc data were correct but on the wrong grid. The grid has been
corrected. GET THE NEW FIELDS!
ccm2
----
* ccm2 has been completely REMOVED from the base and replaced by
ccm3. DO NOT USE CCM2 ANY LONGER!
ccm3
----
* ccm3_6fix is FLAWED and will soon be updated. DO NOT USE IT until
the new fields are available!
cnrm
----
* cnrm has been completely REMOVED from the base and replaced by
cnrm-2. USE ONLY CNRM-2!
echam3
------
* echam3_0fix was rerun and REPLACED, due to a mistake in the
insolation. MAKE SURE YOU ONLY HAVE THE NEW FIELDS!
gen2
----
* Some old gen2 data was labeled as 'cal'(culated) when it should have
been 'fix'(ed). USE ONLY FIX FIELDS!
giss-iip
--------
* giss-iip_0fix and giss-iip_6fix were rerun and REPLACED. MAKE SURE
YOU ONLY HAVE THE NEW FIELDS!
* giss-iip_21fix has been completely removed and will be updated. DO
NOT USE IT until the new fields are available!
ugamp
-----
* ugamp_21fix was rerun and REPLACED. MAKE SURE YOU ONLY HAVE THE NEW
FIELDS!
yonu
----
* yonu_0fix has been completely REMOVED and will soon be updated. DO
NOT USE IT until the new fields are available!
Other errors and changes
========================
If an error in YOUR model is mentioned below and we have not gotten in
touch with you about it, it means that we should be able to take care
of the problem ourselves... when we have time. You are nonetheless
welcome to confirm the error, tell us if other similar variables may
also be wrong, and send us updated/corrected data!
ccc2.0
------
!! The sign of ccc2*tau[u,v] is wrong.
ccm1
----
* sftland has been corrected (their was a shift of 180 degrees in the
longitudes of the original files).
!! The sign of ccm1*tau[u,v] is wrong.
ccm3
----
* sftland has been corrected (their was a shift of 180 degrees in the
longitudes of the original files).
!! The sign of ccm3*tau[u,v] is wrong.
ccsr1
-----
* ccsr1_21fix_[sftland, orog, seaice, sim] has been corrected (it was
originally the same as 0fix), but the other variables were OK.
csiro
-----
echam3
------
* The echam3_[0,6,21]fix_README files have been updated.
* echam3_*_rsds_*_map has been corrected. 'rss' had been supplied
instead of 'rsds'.
gen1
----
!! For all fields the grid is shifted east by half a grid cell
(3.75 degrees) and is therefore incorrect.
gen2
----
* sftland has been corrected (their was a shift of 180 degrees in the
longitudes of the original files).
!! Some gen2*sftland* points have very small values when they
should have a 0.0 value over the ocean.
* The gen2 model has 2 groups of variables defined on two different
grids (AGCM = 3.75 Degrees, or 96x48), thus requiring 2 distinct sets
of sftland files
AGCM grid : T31, 3.75 Degrees, or 96x48
gen2_*_sftland_*_map
variables = orog, sftland, rsdt, rsut, rlt, rsds, rsus, rls,
hfss, hfls, pr, prc, evs, pmsl, usfc,
vsfc, hursfc, clt, rltcs, rstcs, rlscs,
prw, zg, ta, u, v, hus, hur
LSX grid : 2 degrees, or 180*90
gen2_*_sftlandT31_*_map
variables = snow, seaice, sim, snm, mrro, tas, tg, tauu, tauv
!! All the AGCM variables are shifted 1.875 degrees west, and
the LSX variables are shifted 1. degree west.
mri2
----
* The mri2_*_rsds_* files have been renamed to mri2_*_rss_*.
!! Problems with mri2_*_sftland_* ????
!! The sign of mri2*tau[u,v] is wrong.
ugamp
-----
* ugamp_*_snm_map has been corrected.
uiuc11
------
!! The grid of uiuc11_0fix_orog_ca_map is wrong.
ukmo
----
* Variances were updated.
Quality control tests
=====================
Neither all the models nor all the variables were checked. We intend
to keep on testing the data as we use it. We have, for instance,
noticed that annual, seasonal and monthly means were not always
consistent and we will run some comprehensive tests to eliminate this
kind of error.
Tests for 6fix
..............
* insolation change.
* check that there is no surface temperature difference over the ocean
between 6fix and 0fix.
* check that the land-sea mask is correct.
Tests for 21fix
...............
* insolation change.
* check that the differences in SST for January and July, are the ones
expected from CLIMAP. It is however difficult to check this in detail
because the interpolation method may vary from one group to another.
* check that the land-sea mask is correct.
* check the changes in orography .
We also intend to :
* search for errors in rsds and rsus by computing the albedo for the two
periods.
* check that the annual, seasonal and monthly means are consistent.
List of the available variables
===============================
The tables below list what monthly variables are available for 0fix
AND 6fix, 0fix AND 21fix, 0cal AND 21cal.
0fix and 6fix
..............
b c c c c c c e g g g l l m u u u y
m c c c c n s c e e i m m r g i k o
r c m m s r i h n n s c c i a u m n
c 2 1 3 r m r a 1 2 s e e 2 m c o u
| . | | 1 - o m | | - l l | p 1 | |
| 0 | | | 2 | 3 | | i m m | | 1 | |
| | | | | | | | | | i d d | | | | |
| | | | | | | | | | p 4 5 | | | | |
| | | | | | | | | | | | | | | | | |
6fix&0fix_orog_cm_map X X X X X X X X X
6fix&0fix_sftland_cm_map X X X X X X X X X
6fix&0fix_seaice_cm_map X X X X X X X X X X X X X X
6fix&0fix_snow_cm_map X X X X X X X X X
6fix&0fix_sim_cm_map X X X X X X X X X
6fix&0fix_rsdt_cm_map X X X X X X X X X X X X X X X
6fix&0fix_rsut_cm_map X X X X X X X X X X X X X X X
6fix&0fix_rlt_cm_map X X X X X X X X X X X X X X X
6fix&0fix_rsds_cm_map X X X X X X X X X X X X
6fix&0fix_rsus_cm_map X X X X X X X X X X X X
6fix&0fix_rss_cm_map X X X
6fix&0fix_rls_cm_map X X X X X X X X X X X X X X X
6fix&0fix_hfss_cm_map X X X X X X X X X X X X X X X
6fix&0fix_hfls_cm_map X X X X X X X X X X X X X X X
6fix&0fix_mrso_cm_map X X X X X X X X X X X X X
6fix&0fix_snm_cm_map X X X X X X X X X X X X X X X
6fix&0fix_mrro_cm_map X X X X X X X X X X X X X
6fix&0fix_pr_cm_map X X X X X X X X X X X X X X X
6fix&0fix_prc_cm_map X X X X X X X X X X X X
6fix&0fix_prsnwe_cm_map X X X X X X X X
6fix&0fix_evs_cm_map X X X X X X X X X X X X X X X
6fix&0fix_prw_cm_map X X X X X X X X X X X X
6fix&0fix_tas_cm_map X X X X X X X X X X X X X X X
6fix&0fix_tg_cm_map X X X X X X X X X X X X X X X
6fix&0fix_pmsl_cm_map X X X X X X X X X X X X X X X
6fix&0fix_usfc_cm_map X X X X X X X X X X X X X X
6fix&0fix_vsfc_cm_map X X X X X X X X X X X X X
6fix&0fix_tauu_cm_map X X X X X X X X X X X X X
6fix&0fix_tauv_cm_map X X X X X X X X X X X X X
6fix&0fix_hursfc_cm_map X X X X X X X
6fix&0fix_clt_cm_map X X X X X X X X X X X X X X X
6fix&0fix_clw_cm_map X X X X X
6fix&0fix_rltcs_cm_map X X X X X X X X X X X X
6fix&0fix_rstcs_cm_map X X X X X X X X X X X X
6fix&0fix_rlscs_cm_map X X X X X X X X X X X X
6fix&0fix_rsdscs_cm_map X X X X X
6fix&0fix_rsuscs_cm_map X X X X
6fix&0fix_rsscs_cm_map X X
6fix&0fix_zg_cm_3d X X X X X X X X X X X X X X
6fix&0fix_ta_cm_3d X X X X X X X X X X X X X X
6fix&0fix_u_cm_3d X X X X X X X X X X X X X X
6fix&0fix_v_cm_3d X X X X X X X X X X X X X X
6fix&0fix_hus_cm_3d X X X X X X X X X X X X X X
6fix&0fix_hur_cm_3d X X X X X X X X X
6fix&0fix_stfuv_cm_3d X X X X X X X X X X
6fix&0fix_potuv_cm_3d X X X X X X X X X X
6fix&0fix_u_cm_xsec X X X X X X X X X X X X
6fix&0fix_v_cm_xsec X X X X X X X X X X X X
6fix&0fix_ta_cm_xsec X X X X X X X X X X X X
6fix&0fix_hus_cm_xsec X X X X X X X X X X X X
6fix&0fix_hur_cm_xsec X X X X X X X X X
6fix&0fix_clt_cm_xsec X X X X X X X
6fix&0fix_stfmm_cm_xsec X X X X X X X
0fix and 21fix
..............
b c c c c c c e g g g l l m u u u y
m c c c c n s c e e i m m r g i k o
r c m m s r i h n n s c c i a u m n
c 2 1 3 r m r a 1 2 s e e 2 m c o u
| . | | 1 - o m | | - l l | p 1 | |
| 0 | | | 2 | 3 | | i m m | | 1 | |
| | | | | | | | | | i d d | | | | |
| | | | | | | | | | p 4 5 | | | | |
| | | | | | | | | | | | | | | | | |
21fix&0fix_orog_cm_map X X X X X
21fix&0fix_sftland_cm_map X X X X X
21fix&0fix_seaice_cm_map X X X X X X
21fix&0fix_snow_cm_map X X X X X
21fix&0fix_sim_cm_map X X X
21fix&0fix_rsdt_cm_map X X X X X X X
21fix&0fix_rsut_cm_map X X X X X X X
21fix&0fix_rlt_cm_map X X X X X X X
21fix&0fix_rsds_cm_map X X X X X
21fix&0fix_rsus_cm_map X X X X X
21fix&0fix_rss_cm_map X X
21fix&0fix_rls_cm_map X X X X X X X
21fix&0fix_hfss_cm_map X X X X X X X
21fix&0fix_hfls_cm_map X X X X X X X
21fix&0fix_mrso_cm_map X X X X X X
21fix&0fix_snm_cm_map X X X X X X X
21fix&0fix_mrro_cm_map X X X X X X
21fix&0fix_pr_cm_map X X X X X X X
21fix&0fix_prc_cm_map X X X X X
21fix&0fix_prsnwe_cm_map X X X
21fix&0fix_evs_cm_map X X X X X X X
21fix&0fix_prw_cm_map X X X X X X
21fix&0fix_tas_cm_map X X X X X X X
21fix&0fix_tg_cm_map X X X X X X X
21fix&0fix_pmsl_cm_map X X X X X X X
21fix&0fix_usfc_cm_map X X X X X X X
21fix&0fix_vsfc_cm_map X X X X X X X
21fix&0fix_tauu_cm_map X X X X X
21fix&0fix_tauv_cm_map X X X X X
21fix&0fix_hursfc_cm_map X X X
21fix&0fix_clt_cm_map X X X X X X X
21fix&0fix_clw_cm_map X X X
21fix&0fix_rltcs_cm_map X X X X X X
21fix&0fix_rstcs_cm_map X X X X X X
21fix&0fix_rlscs_cm_map X X X X X X
21fix&0fix_rsdscs_cm_map X X
21fix&0fix_rsuscs_cm_map X
21fix&0fix_rsscs_cm_map X
21fix&0fix_zg_cm_3d X X X X X X X
21fix&0fix_ta_cm_3d X X X X X X X
21fix&0fix_u_cm_3d X X X X X X X
21fix&0fix_v_cm_3d X X X X X X X
21fix&0fix_hus_cm_3d X X X X X X X
21fix&0fix_hur_cm_3d X X X X
21fix&0fix_stfuv_cm_3d X X X X
21fix&0fix_potuv_cm_3d X X X X
21fix&0fix_u_cm_xsec X X X X X
21fix&0fix_v_cm_xsec X X X X X
21fix&0fix_ta_cm_xsec X X X X X
21fix&0fix_hus_cm_xsec X X X X X
21fix&0fix_hur_cm_xsec X X X X
21fix&0fix_clt_cm_xsec X X X
21fix&0fix_stfmm_cm_xsec X X X
0cal and 21cal
..............
b c c c c c c e g g g l l m u u u y
m c c c c n s c e e i m m r g i k o
r c m m s r i h n n s c c i a u m n
c 2 1 3 r m r a 1 2 s e e 2 m c o u
| . | | 1 - o m | | - l l | p 1 | |
| 0 | | | 2 | 3 | | i m m | | 1 | |
| | | | | | | | | | i d d | | | | |
| | | | | | | | | | p 4 5 | | | | |
| | | | | | | | | | | | | | | | | |
21cal&0cal_orog_cm_map X X X X
21cal&0cal_sftland_cm_map X X X X
21cal&0cal_seaice_cm_map X X X X X
21cal&0cal_snow_cm_map X X X X
21cal&0cal_sim_cm_map X X X X X
21cal&0cal_rsdt_cm_map X X X X X
21cal&0cal_rsut_cm_map X X X X X
21cal&0cal_rlt_cm_map X X X X X
21cal&0cal_rsds_cm_map X X X
21cal&0cal_rsus_cm_map X X X
21cal&0cal_rss_cm_map X
21cal&0cal_rls_cm_map X X X X X
21cal&0cal_hfss_cm_map X X X X X
21cal&0cal_hfls_cm_map X X X X X
21cal&0cal_mrso_cm_map X X X
21cal&0cal_snm_cm_map X X X X X
21cal&0cal_mrro_cm_map X X X X
21cal&0cal_pr_cm_map X X X X X
21cal&0cal_prc_cm_map X X X X X
21cal&0cal_prsnwe_cm_map X X X
21cal&0cal_evs_cm_map X X X X X
21cal&0cal_prw_cm_map X X X X
21cal&0cal_tas_cm_map X X X X X
21cal&0cal_tg_cm_map X X X X X
21cal&0cal_pmsl_cm_map X X X X X
21cal&0cal_usfc_cm_map X X X X
21cal&0cal_vsfc_cm_map X X X X
21cal&0cal_tauu_cm_map X X X X X
21cal&0cal_tauv_cm_map X X X X X
21cal&0cal_hursfc_cm_map X X
21cal&0cal_clt_cm_map X X X X X
21cal&0cal_clw_cm_map X
21cal&0cal_rltcs_cm_map X X X X X
21cal&0cal_rstcs_cm_map X X X X X
21cal&0cal_rlscs_cm_map X X X X X
21cal&0cal_rsdscs_cm_map X
21cal&0cal_rsuscs_cm_map X
21cal&0cal_rsscs_cm_map X
21cal&0cal_zg_cm_3d X X X X X
21cal&0cal_ta_cm_3d X X X X X
21cal&0cal_u_cm_3d X X X X X
21cal&0cal_v_cm_3d X X X X X
21cal&0cal_hus_cm_3d X X X X X
21cal&0cal_hur_cm_3d X X X
21cal&0cal_stfuv_cm_3d X X
21cal&0cal_potuv_cm_3d X X
21cal&0cal_u_cm_xsec X X X X
21cal&0cal_v_cm_xsec X X X X
21cal&0cal_ta_cm_xsec X X X X
21cal&0cal_hus_cm_xsec X X X X
21cal&0cal_hur_cm_xsec X X X
21cal&0cal_clt_cm_xsec X X
21cal&0cal_stfmm_cm_xsec X X
|
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