[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]
Re: NCEP North American Reanalysis (fwd) Rutledge sends
- Subject: Re: NCEP North American Reanalysis (fwd) Rutledge sends
- Date: Fri, 1 Oct 2004 12:34:49 -0600 (MDT)
On Fri, 1 Oct 2004, Dan Swank wrote:
> Ben et al.,
> We are having problems with the NetCDF until- the udunits.h file can't
> be found. this seems so simple but don't know why. Could someone at
> your shop assist. Pls respond to Dan Swank. Thx, Glenn
Dan,
i'm assuming you are building gribtonc? the build needs to know where the
netcdf.h, libnetcdf.a, udunits.h, and libudunits.a files are located. the
easiest configuration is to modify the CUSTOMIZE file and set these
locations, it's in the src dir
the modification is to replace the paths /usr/local/netcdf and
/usr/local/udunits/ with the install points of netcdf and udunits.
# netCDF header file and library references:
CPP_NETCDF=/usr/local/netcdf/include
LD_NETCDF='-L/usr/local/netcdf/lib -lnetcdf'
#
# udunits header file and library references:
CPP_UDUNITS=-I/usr/local/udunits/include
LD_UDUNITS='-L/usr/local/udunits/lib -ludunits'
then run:
% make distclean
% ./configure
% make
% make install
% make test perl decoders will fail but that's OK
robb...
>
> Glenn Rutledge wrote:
>
> > Thanks Jon,
> > I stand corrected- it does work, but for a limited volume only (as in
> > your example!). The conversion is rather straightforward, and w/o
> > issues it could be by next week. Glenn
> >
> > Jon Goodall wrote:
> >
> >> Hi All,
> >>
> >> I've been able to download a subset of the NARR data (only
> >> surface-level values from a week at the 3 hour time step) from the
> >> NCDC website using the ftp4u link. It works great and I had no
> >> problems. If we also have the grib2nc conversion, we will be all
> >> set. Glenn, when do you hope to has this conversion available?
> >>
> >> Jon Goodall
> >> Center for Research in Water Resources
> >> University of Texas at Austin
> >>
> >>
> >> ----Original Message Follows----
> >> From: "Glenn Rutledge" <address@hidden>
> >> To: Steve Worley <address@hidden>
> >> CC: Ben Domenico <address@hidden>, David Maidment
> >> <address@hidden>, Jon Goodall <address@hidden>,
> >> "Dennis P. Lettenmaier" <address@hidden>, support-ldm
> >> <address@hidden>, Martin Benno Blumenthal
> >> <address@hidden>, Don Hooper <address@hidden>,
> >> Roland Schweitzer <address@hidden>, Robb Kambic
> >> <address@hidden>, Sharon Leduc <address@hidden>,
> >> Russell Vose <address@hidden>, Dan Swank <address@hidden>
> >> Subject: Re: NCEP North American Reanalysis (fwd)
> >> Date: Fri, 01 Oct 2004 09:04:49 -0400
> >>
> >>
> >> ------------------------------------------------------------------------
> >>
> >> Subject:
> >> Re: NCEP North American Reanalysis (fwd)
> >> From:
> >> "Glenn Rutledge" <address@hidden>
> >> Date:
> >> Fri, 01 Oct 2004 09:04:49 -0400
> >> To:
> >> Steve Worley <address@hidden>
> >>
> >>
> >> Thanks Steve and Ben for your forward.
> >>
> >> We are now ingesting and have avbl the NARR. We have 1987 thru 2003
> >> (of the 1979-2004) as requested below. NCAR and SDSC will also have
> >> copies. Here at NCDC, Murphy got in the way as I usually have grib
> >> sub-seting capabilities, however the RAID I expected in for this
> >> operation has not yet arrived! I'm told the check is in the mail.
> >> To get around this, the NOMADS team (all 2.5 of us) put together
> >> direct access http to (m)get at the data due to this hardware delay.
> >>
> >> So, users may access the data as per Steve's url below. Use the http
> >> link to get at the data directories. Depending on your internet
> >> connection, it may be a slow process (maybe open 2 ports).
> >>
> >> By next week (or so), please point users to the "ftp4u" capability
> >> that can subset this large (5TB) dataset by parameter space and time
> >> (and by variable). There is dataset documentation also avbl at the
> >> site.
> >>
> >> As I write, we are developing a grib2nc capability for users to
> >> retrieve in NetCDF format. We will also compress the NetCDF for
> >> transmission (GFDL, Kerr) found that these NetCDF files compress very
> >> well. Please let me know your experiences with this site and do try
> >> to subset when that's avbl. Thanks, Glenn
> >>
> >> Steve Worley wrote:
> >>
> >>> All,
> >>>
> >>> North American Regional Reanalysis is just coming available from
> >>> two location I know of:
> >>>
> >>> the NCDC NOMADS server (Glenn's work) at
> >>> http://nomads.ncdc.noaa.gov/data-access.html#narr_datasets
> >>>
> >>> and NCAR through the Data Support Section.
> >>> We have 1987-2003 archived, but not fully ready for service. However,
> >>> if you wish to let us know what you require we might be able to
> >>> accomodate your needs without too much problem. Chi-Fan Shih
> >>> (address@hidden) can address your further questions about NARR
> >>> from NCAR.
> >>>
> >>> sjw
> >>>
> >>>
> >>> Ben Domenico wrote:
> >>>
> >>>> Hi David, Jon and Dennis,
> >>>>
> >>>> Your questions are flattering in terms of the assumed breadth and
> >>>> depth of knowledge about data collections here at the Unidata
> >>>> Program Center (UPC), but we should be honest and offer a few
> >>>> clarifications that will help you find what you are looking for
> >>>> more quickly.
> >>>>
> >>>> The main clarification is that the staff at the UPC mainly focuses
> >>>> on infrastructure for real-time data systems for weather data. I
> >>>> understand that archived climate information is closely related,
> >>>> but your questions about the details of specific archived climate
> >>>> datasets are skirting pretty much at and beyond the edges of our
> >>>> UPC expertise. Those sorts of questions are better posed to the
> >>>> folk who create and maintain the climate data archives at places
> >>>> like the NCDC, NCAR, Lamont-Doherty, and CDC. I plan to send a
> >>>> copy of this note to Glenn Rutledge at NCDC, Benno Blumenthal at
> >>>> LDEO, Steve Worley at NCAR, and Don Hooper & Roland Schweitzer at
> >>>> CDC who should be able to help you find what you need in terms of
> >>>> the North American Reanalysis datasets -- in particular a netCDF
> >>>> version.
> >>>>
> >>>> On the other hand, we do have experience at the UPC with decoders
> >>>> that transform certain GRIB datasets into netCDF form (indeed with
> >>>> considerably expanded size) and I'll ask Robb to follow up on that
> >>>> issue to see if there is a version of that (GRIBTONC) decoder for
> >>>> the North American Reanalysis data.
> >>>>
> >>>> I don't mean to be passing the buck, but there are many groups who
> >>>> have more detailed expertise than the UPC about archives of climate
> >>>> datasets.
> >>>>
> >>>> --Ben
> >>>> ******************************************************
> >>>> Ben Domenico Unidata Deputy Director
> >>>> http://my.unidata.ucar.edu P.O. Box 3000
> >>>> address@hidden Boulder, CO 80307
> >>>> (303)497-8631 FAX: (303)497-8690
> >>>>
> >>>> --On Thursday, September 30, 2004 3:45 PM -0500 David Maidment
> >>>> <address@hidden> wrote:
> >>>>
> >>>>> Robb:
> >>>>>
> >>>>> Dennis Lettenmaier is correct here. What you are pointing us to is
> >>>>> the global NCEP reanalysis, which is on a 2.5 degree grid and not
> >>>>> very informative for the hydrology of the US. What we are seeking
> >>>>> to work with is the reanalysis for North America alone, which is
> >>>>> on a 32km grid and is in Grib format, not netCDF. The global
> >>>>> reanalysis is available in netCDF.
> >>>>>
> >>>>> David
> >>>>>
> >>>>>
> >>>>> -----Original Message-----
> >>>>> From: Robb Kambic [mailto:address@hidden]
> >>>>> Sent: Thursday, September 30, 2004 11:25 AM
> >>>>> To: Ben Domenico
> >>>>> Cc: David Maidment; support-ldm
> >>>>> Subject: Re: NCEP North American Reanalysis (fwd)
> >>>>>
> >>>>>
> >>>>>
> >>>>> look at url:
> >>>>>
> >>>>> http://www.cdc.noaa.gov/cdc/data.ncep.reanalysis.html#surface_gauss
> >>>>>
> >>>>> parameters water runoff, soil moisture, etc. these files are in
> >>>>> netcdf
> >>>>> so they should be usuable for your analysis. i downloaded a couple of
> >>>>> files and dumped them using ncdump.
> >>>>>
> >>>>> there are proably other hydrologic fluxes data sets that can be
> >>>>> found by
> >>>>> searching the web.
> >>>>>
> >>>>> robb...
> >>>>>
> >>>>> On Thu, 30 Sep 2004, Ben Domenico wrote:
> >>>>>
> >>>>>> Hi all,
> >>>>>>
> >>>>>> The note below from David Maidment asks about getting the NCAR
> >>>>>> reanalysis products into netCDF form. Is there something special
> >>>>>> about these datasets or would our grib to netcdf decoder work with
> >>>>>> them. Regarding the grads part of it, I'm assuming that refers
> >>>>>> to the
> >>>>>
> >>>>>
> >>>>>
> >>>>>> fact that they are available via the GDS protocol, but let me
> >>>>>> know if
> >>>>>> there's more to it than that.
> >>>>>>
> >>>>>> And how about the CDC archives? I thought they published these data
> >>>>>> in netCDF form.
> >>>>>>
> >>>>>> Thanks.
> >>>>>>
> >>>>>> -- Ben
> >>>>>>
> >>>>>> ---------- Forwarded Message ----------
> >>>>>> Date: Thursday, September 30, 2004 8:18 AM -0500
> >>>>>> From: David Maidment <address@hidden>
> >>>>>> To: Ben Domenico <address@hidden>
> >>>>>> Subject: NCEP North American Reanalysis
> >>>>>>
> >>>>>>
> >>>>>> Ben:
> >>>>>>
> >>>>>> In CUAHSI HIS, we are thinking that a good "coverage" of hydrologic
> >>>>>> fluxes from the atmosphere could be obtained from the NCEP North
> >>>>>> American Reanalysis. More info is at
> >>>>>> http://www.emc.ncep.noaa.gov/mmb/rreanl/
> >>>>>>
> >>>>>> It seems like the data are all stored in one of your sister
> >>>>>> institutions in Boulder.
> >>>>>>
> >>>>>> Could you please help us to interpret what the data available are?
> >>>>>>
> >>>>>> The data are in Grib/Grads format. We have invested a lot of
> >>>>>> effort
> >>>>>
> >>>>>
> >>>>> in
> >>>>>
> >>>>>> working
> >>>>>> with netCDF and I don't want Jon Goodall or others in our CUAHSI
> >>>>>
> >>>>>
> >>>>> community
> >>>>>
> >>>>>> having to tussle with Grib/Grads. We have another other data
> >>>>>> formats
> >>>>>> already
> >>>>>> with GIS, point observations and remote sensing to consider.
> >>>>>>
> >>>>>> Would it be possible to translate these reanalysis data layers into
> >>>>>> netCDF format?
> >>>>>>
> >>>>>> David
> >>>>>>
> >>>>>>
> >>>>>> ---------- End Forwarded Message ----------
> >>>>>>
> >>>>>>
> >>>>>>
> >>>>>
> >>>>> ========================================================================
> >>>>>
> >>>>> =======
> >>>>> Robb Kambic Unidata Program Center
> >>>>> Software Engineer III Univ. Corp for Atmospheric
> >>>>> Research
> >>>>> address@hidden WWW:
> >>>>> http://www.unidata.ucar.edu/
> >>>>> ========================================================================
> >>>>>
> >>>>> =======
> >>>>
> >>>>
> >>>>
> >>>>
> >>>>
> >>>
>
> --
> Dan Swank <address@hidden>
> NOMADS programmer
> STG, Incorporated - Government Contractor
> 151 Patton Avenue, Room 514
> Asheville, NC 28801
> Phone: 828-271-4007
>
>
===============================================================================
Robb Kambic Unidata Program Center
Software Engineer III Univ. Corp for Atmospheric Research
address@hidden WWW: http://www.unidata.ucar.edu/
===============================================================================