Hi Sebastien,
I think that the server at Aviso must be installed on a system where
for some reason they are not able to access the remote dataset http://ferret.pmel.noaa.gov/thredds/dodsC/data/PMEL/smith_sandwell_topo_v8_2.nc
I have written to the contact email address for the server at Aviso
asking whether that is the case. The solution would be to provide a
patch to the Ferret scripts that LAS runs, which will check whether
the dataset can be opened, and if not revert to a somewhat lower
resolution bathymetry/topography dataset which will be local on
their system as it's part of the Ferret distribution and will have
been installed when they installed Ferret and LAS.
Ansley
On 8/24/2012 3:06 AM, Sebastien Lebosse
wrote:
What is even more strange is that I try to run the corresponding
LAS Ferret script from the command line as specified here http://ferret.pmel.noaa.gov/LAS/documentation/installer-documentation/errors-and-debugging/running-an-las-ferret-script-from-the-command-line/,
there is no problem and I can generate my map on the black sea
area.
regards,
Sébastien
Le 24/08/2012 11:11, Sebastien Lebosse a écrit :
Hi Ansley,
Many thanks for your timely response. Indeed there is no problem
with land outline option but for many reasons I need to resolve
this problem (if it's possible !). As far as I known, there is
no restricts access to external Thredds Data Servers.
I noticed that this problem appears after a certain level of
zoom. If I select "DT - Delayed time Data / DT - Global / DT
- Global - (Maps of) Sea Level Anomalies And Formal Mapping
Error" in http://las.aviso.oceanobs.com/las/getUI.do,
ferret systematically generates the maps with the global region
but when I zoom to the black sea area the maps generation become
impossible.
In attached file you can see the las.log extract for these both
requests. I don't know why (in this extract) when I plot a
little region (like the black sea) the LAS systematically
repeats the line "ProductServerAction - START: http://atoll-las.vlandata.cls.fr:51080/las/ProductSe....."
and after some time fails.
At the moment, I don't understand what is different between this
both request and I don't understand why we don't have the same
behavior with your LAS http://oos.soest.hawaii.edu/las/
.
If you have an idea or an advice to help address this issue, I
thank you in advance.
regards,
Sébastien
Le 22/08/2012 19:26, Ansley Manke a écrit :
Hi Sebastien,
I can use that dataset from here, in our LAS servers, and it's
working fine for small-region plots using filled land at other
LAS installations, such as http://oos.soest.hawaii.edu/las/,
so it's a bit hard to diagnose. I wonder if Aviso has
something in place that restricts access to thredds servers
outside their own.
As you may know, a workaround is to select land outline in the
plot options; and in fact some of the datsets on that server
at aviso are configured that way. For instance, I went to
this selection,
Select by geographic area / Global ocean / Delayed Time -
Global / Delayed Time - Global - (Maps of) Absolute
Geostrophic Velocities, and this data makes a land outline.
-Ansley
On 8/22/2012 7:44 AM, Sebastien Lebosse wrote:
Dear LAS team,
http://las.aviso.oceanobs.com/las/getUI.do
uses the las.v7.3.
This LAS cannot generate maps with option land fill
style = Filled because the essential http://ferret.pmel.noaa.gov/thredds/dodsC/data/PMEL/smith_sandwell_topo_v8_2.nc
resource for ferret scripts is not available or impossible
to use.
What should I do to troubleshoot the problem ?
below an extract of the las.log :
----------------------------------------------
(...)
! If a tiny region then use smith_sandwell topo from PMEL
server
IF `fland_area LT 0.005` THEN
!-> IF 1 THEN
SET DATA/SAVE
DEF SYM xlo_hack ($xaxis_min%0%)
!-> DEF SYM xlo_hack 27.000000
DEF SYM xhi_hack ($xaxis_max%360%)
!-> DEF SYM xhi_hack 42.00000
DEF SYM ylo_hack ($yaxis_min%-90%)
!-> DEF SYM ylo_hack 40.000000
DEF SYM yhi_hack ($yaxis_max%90%)
!-> DEF SYM yhi_hack 47.00000
DEF SYM map_reg =
[x=($xlo_hack):($xhi_hack),y=($ylo_hack):($yhi_hack)]
!-> DEF SYM map_reg =
[x=27.000000:42.00000,y=40.000000:47.00000]
USE "http://ferret.pmel.noaa.gov/thredds/dodsC/data/PMEL/smith_sandwell_topo_v8_2.nc"
LAS 2012-08-22T14:16:21.006 +0000 INFO -
ProductServerAction - START: http://atoll-las.vlandata.cls.fr:51080/las/ProductServer.do?xml=<?xml
version="1.0"?><lasRequest href=""
moz-do-not-send="true" defanghtml_moz-do-not-send="true"
class="moz-txt-link-rfc2396E" href="file:las.xml">"file:las.xml"><link
match="/lasdata/operations/operation[@ID='Plot_2D_XY_zoom']"></link><properties><ferret><view>xy</view><land_type>filled</land_type><set_aspect>default</set_aspect><mark_grid>no</mark_grid><contour_levels></contour_levels><fill_levels></fill_levels><contour_style>default</contour_style><palette>default</palette><deg_min_sec>default</deg_min_sec><margins>default</margins><use_graticules>default</use_graticules><size>0.5</size><image_format>default</image_format><interpolate_data>false</interpolate_data><_expression_></_expression_></ferret></properties><args><link
match="/lasdata/datasets/dataset-duacs-dt-upd-blacksea-merged-msla-h-latlon-switched/variables/grid_0001"></link><region><range
type="y" low="40" high="47"></range><range
type="x" low="27" high="42"></range><point
type="t" v="08-FEB-2012
00:00:00"></point></region></args></lasRequest>
LAS 2012-08-22T14:16:21.075 +0000 INFO -
FerretBackendService - START: Plot_2D_XY
LAS 2012-08-22T14:16:45.453 +0000 INFO -
ProductServerAction - START: http://atoll-las.vlandata.cls.fr:51080/las/ProductServer.do?xml=<?xml
version="1.0"?><lasRequest href=""
moz-do-not-send="true" defanghtml_moz-do-not-send="true"
class="moz-txt-link-rfc2396E" href="file:las.xml">"file:las.xml"><link
match="/lasdata/operations/operation[@ID='Plot_2D_XY_zoom']"></link><properties><ferret><view>xy</view><land_type>filled</land_type><set_aspect>default</set_aspect><mark_grid>no</mark_grid><contour_levels></contour_levels><fill_levels></fill_levels><contour_style>default</contour_style><palette>default</palette><deg_min_sec>default</deg_min_sec><margins>default</margins><use_graticules>default</use_graticules><size>0.5</size><image_format>default</image_format><interpolate_data>false</interpolate_data><_expression_></_expression_></ferret></properties><args><link
match="/lasdata/datasets/dataset-duacs-dt-upd-blacksea-merged-msla-h-latlon-switched/variables/grid_0001"></link><region><range
type="y" low="40" high="47"></range><range
type="x" low="27" high="42"></range><point
type="t" v="08-FEB-2012
00:00:00"></point></region></args></lasRequest>
(...)
LAS 2012-08-22T14:19:30.876 +0000 ERROR -
FerretBackendService - Ferret backend request failed: A
remote server was unable to deliver the data LAS needs to
make your product.
LAS 2012-08-22T14:19:30.877 +0000 INFO -
FerretBackendService - END: Plot_2D_XY
LAS 2012-08-22T14:19:33.229 +0000 INFO -
ProductServerAction - START: http://atoll-las.vlandata.cls.fr:51080/las/ProductServer.do?xml=<?xml
version="1.0"?><lasRequest href=""
moz-do-not-send="true" defanghtml_moz-do-not-send="true"
class="moz-txt-link-rfc2396E" href="file:las.xml">"file:las.xml"><link
match="/lasdata/operations/operation[@ID='Plot_2D_XY_zoom']"></link><properties><ferret><view>xy</view><land_type>filled</land_type><set_aspect>default</set_aspect><mark_grid>no</mark_grid><contour_levels></contour_levels><fill_levels></fill_levels><contour_style>default</contour_style><palette>default</palette><deg_min_sec>default</deg_min_sec><margins>default</margins><use_graticules>default</use_graticules><size>0.5</size><image_format>default</image_format><interpolate_data>false</interpolate_data><_expression_></_expression_></ferret></properties><args><link
match="/lasdata/datasets/dataset-duacs-dt-upd-blacksea-merged-msla-h-latlon-switched/variables/grid_0001"></link><region><range
type="y" low="40" high="47"></range><range
type="x" low="27" high="42"></range><point
type="t" v="08-FEB-2012
00:00:00"></point></region></args></lasRequest>
LAS 2012-08-22T14:19:33.249 +0000 ERROR - LASAction - A
remote server was unable to deliver the data LAS needs to
make your product.
LAS 2012-08-22T14:19:33.249 +0000 ERROR - LASAction -
**Internet Data error
NetCDF: I/O failure (OPeNDAP/netCDF Error
code -68)
Data set: http://ferret.pmel.noaa.gov/thredds/dodsC/data/PMEL/smith_sandwell_topo_v8_2.nc
SET DAT/FORM=CDF "http://ferret.pmel.noaa.gov/thredds/dodsC/data/PMEL/smith_sandwell_topo_v8_2.nc"
Command file, command group, or REPEAT execution aborted
ERROR RUNNING SCRIPT
----------------------------------------------
Thanks in advance,
Sébastien
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