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Hi Takaya, las_users please note: I'm cc'ing las_users just to finish out this thread, but I realize my response is not related to LAS. Your question: Could I use OPeNDAP/JGOFS Server for the data input to ferret or matlab like use "http://localhost/cgi-bin/nph-dods/test"? Only I know the way of OPeNDAP/JGOFS in browser, http://localhost/cgi-bin/nph-dods/test.dds or http://localhost/cgi-bin/nph-dods/test.asc to see the data. and my answer: Yes Matlab can read JGOFS format via the loaddods utility. loaddods should be in a subdirectory included in the OPeNDAP installation. [ $DODS_root/bin/loaddods.m ] -- remember to add DODS/bin subdirectory to MATLAB path defn in your statrup.m [ something like this ] % OPeNDAP utilities % geturl loaddods.m loaddods.mexglx Ncview opendap-config whodods.m writeval path( path,'/usr/local/DODS/bin' ); then from within a Matlab session, you can use loaddods to read in NetCDF files and JGOFS format objects: >> SMPdata=loaddods ('-A','http://usjgofs.whoi.edu/dods-bin/nph-dods/dods/data/thompson/test.nc') >> JGdata=loaddods ('-A','http://usjgofs.whoi.edu/dods-bin/nph-dods/jgofs/merged_objects/US_JGOFS/North_Atlantic/bottle_nabe') >> JGdata.Level_0 ans = [ ... lists all the parameter names; note the .Level_0 ] >> JGdata.Level_0.depth [ lists the depth param attrs ] ans = units: '"meters"' width: '"5"' DODS_ML_Real_Name: 'depth' DODS_ML_Type: 'String' You can add selections and projections to the URI too: >> JGdata=loaddods ('-A','http://usjgofs.whoi.edu/dods-bin/nph-dods/jgofs/merged_objects/US_JGOFS/North_Atlantic/bottle_nabe?date,lon,lat,depth,NO3') >> JGdata.Level_0 ans = DODS_ML_Real_Name: 'Level_0' DODS_ML_Type: 'Sequence' date: [1x1 struct] lon: [1x1 struct] lat: [1x1 struct] depth: [1x1 struct] NO3: [1x1 struct] >> help loaddods [ will tell you more ] I'm not much of a ferret user, but I believe this will get you started: The USE command is an alias for SET DATA/FORMAT=cdf the content returned from this URI is a list of ASCII records: http://usjgofs.whoi.edu/dods-bin/nph-dods/jgofs/merged_objects/US_JGOFS/North_Atlantic/bottle_nabe.asc?date,lon,lat,depth,NO3 Dataset: bottle_nabe Level_0.date, Level_0.lon, Level_0.lat, Level_0.depth, Level_0.NO3 "19890420", "-20.6583", "59.7418", "28", "13.2" "19890420", "-20.6583", "59.7418", "53", "13.2" "19890420", "-20.6583", "59.7418", "78", "13.2" "19890420", "-20.6583", "59.7418", "103", "13.3" "19890420", "-20.6583", "59.7418", "152", "13.4" "19890420", "-20.6583", "59.7418", "201", "13.4" so you'll want to specify ASCII data type: SET DATA/FORMAT=free or it's alias command FILE you would want to subset the JGOFS object to just grab the variables of interest and you'd also need to setup the axes correctly (see User Guide: Ch2 Sec5. ASCII DATA) probably some combination of DEFINE AXIS and DEFINE GRID commands followed by the 'Read the data' command, something like: FILE/ORDER=TXYZ/VARIABLES="date,lon,lat,depth,nitrate" "http://usjgofs.whoi.edu/dods-bin/nph-dods/jgofs/merged_objects/US_JGOFS/North_Atlantic/bottle_nabe.asc?date,lon,lat,depth,NO3" For more complete documentation, there is an excellent, comprehensive online ferret User Guide: http://ferret.pmel.noaa.gov/Ferret/Documentation/Users_Guide/current/fer_html.htm and ferret User Guide is available as a PDF, if you want a local copy: http://ferret.pmel.noaa.gov/Ferret/Documentation/Users_Guide/current/ferret_users_guide_v581.pdf Also, there is an updated version of the JGOFS data system available here: http://usjgofs.whoi.edu/~chandler/ latest jgofs ddms files Updated: 06 Jan 2004 If you want a full JGOFS DBMS installation (especially if you're installing on a linux system), you may want to install the current version (v 1.8.4) available from the address link above. Regards, Cyndy Namba Takaya wrote: Dear Cyndy Thank you very much for your very kind and detailed information. I am very interested both in JGOFS OPeNDAP/JGOFS and JGOFS server because I have many satellite and insitu data off Argentine. I did read through the documents you suggested and I had installed OPeNDAP/JGOFS and JGOFS server 1.72(JGOF Data system) without any problem (In fact, I could not install JGOFS server 1.73 with a error of "list" compiling. But it does not matter). I had tested some samples both in OPeNDAP/JGOFS and JGOFS server and they work very well. I understand that JGOFS server is very useful to me for insitu data. However, I do not understand how OPeNDAP/JGOFS Server is useful for me. I have used OPeNDAP/HDF and netcdf for the satellite data with ferret and it is extremely useful to me as it is to you. Could I use OPeNDAP/JGOFS Server for the data input to ferret or matlab like use "http://localhost/cgi-bin/nph-dods/test"? Only I know the way of OPeNDAP/JGOFS in browser, http://localhost/cgi-bin/nph-dods/test.dds or http://localhost/cgi-bin/nph-dods/test.asc to see the data. Anyhow, I would like to say again "thank you very much for your kindness". I will have some more questions. However, I need the time to digest your suggestion first. Best Regards, Takaya Namba -------------------------------------- Know more about Breast Cancer http://pr.mail.yahoo.co.jp/pinkribbon/ -- ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ Cyndy Chandler | voice: (508) 289-2765 MS #43, WHOI | Office hrs: M-F ~ 9-4 Woods Hole, MA 02543 | FAX: (508) 457-2161 cchandler@whoi.edu | http://www.whoi.edu/people/cchandler Ocean Carbon and Biogeochemistry Data Management Office Department of Marine Chemistry and Geochemistry Woods Hole Oceanographic Institution |