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 thefact 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 effortinworking with netCDF and I don't want Jon Goodall or others in our CUAHSIcommunityhaving 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/ ======================================================================== =======
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