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LDM version 6.6.5 is released.
LDM version 6.6.4 is released.
LDM version 6.6.3 is released.
LDM version 6.6.2 is released.
LDM version 6.6.1 is released.
LDM version 6.6.0 is released.
LDM version 6.5.1 is released.
LDM version 6.5.0 is released.
LDM version 6.4.6 is released.
LDM version 6.4.5 is released.
LDM version 6.4.4 is released.
LDM version 6.4.3 is released.
LDM version 6.4.2 is released. For more details, see the LDM version 6.4.2 release notes.
LDM version 6.3.0 is released. For more details, see the LDM version 6.3.0 release notes.
LDM version 6.2.1 is released. For more details, see the LDM version 6.2.1 release notes.
LDM version 6.2.0 is released. For more details, see the LDM version 6.2.0 release notes.
LDM version 6.1.0 is released. For more details, see the LDM version 6.1.0 release notes.
LDM version 6.0.14 is released. For more details, see the LDM version 6.0.14 release notes.
LDM version 6.0.13 is released. For more details, see the LDM version 6.0.13 release notes.
LDM version 6.0.12 is released. For more details, see the LDM version 6.0.12 release notes.
LDM version 6.0.11 is released. For more details, see the LDM version 6.0.11 release notes.
LDM version 6.0.10 is released. For more details, see the LDM version 6.0.10 release notes.
LDM version 6.0.3 is released. more details, see the LDM version 6.0.3 release notes.
LDM version 6.0.2 is available. This release performs much more efficiently than version 5 of the LDM. For more details, see the LDM version 6.0.2 release notes.
LDM version 5.2 is available. This update fixes some bugs and adds the new rtstats program as well as some new options to ldmadmin, pqinsert, and pqcat programs. For more details, see the release announcement.
LDM version 5.1.4 has been released. This is a minor update that fixes a few specific problems. In particular, changes were made to:
The LDM 5.1.4 Release Notes describe the revisions in detail.
LDM, version 5.1.3, has been released. This is a minor update that is only necessary for sites running the pqing program to inject data into the IDD. The LDM 5.1.3 Release Notes describe the revisions in detail.
A patch for 32-bit SGI platforms is now available in LDM 5.1.2 to fix an alignment bug that results in a "bus error" when pqcreate (or ldmadmin mkqueue) is used for certain queue sizes on SGI/IRIX 32-bit platforms. This patch will be included in version 5.1.3.
LDM, version 5.0.7, has been released as an internal/Linux release. This release has not been completely tested on all platforms. Still waiting for a NOAAport release, it's being held up because board sofware is unavailable.
LDM, version 5.0.6, has been released. This release wasn't formally announced because UPC was expecting to make a NOAAport LDM release in the near future.
LDM, version 5.0.1, has been released to the general Unidata community. It is the last release to support LDM 4 protocols. The release announcement is here.
The LDM/IDD FAQ is now on line.
The course materials for the Unidata Winter Workshop on the LDM5 are now available on our web server.
The production release of ldm5, ldm-5.0, has been released to
IDD relay sites only. This is to reduce confusion for the leaf nodes when they
eventually upgrade. If everything goes well, ldm-5.0 will be released to the
general IDD community in about a week.
Add support in 'pqing' for direct connection to terminal servers. Port to IRIX 6.1. A fix to ulog. Reworked log messages. Less verbose (more ldm-4 like) in verbose mode. The MD5 checksum is only printed in debug mode. Changes to ldmadmin.
Fix to pqing/tty.c for 8 bit feeds (HDS). (Thanks harry) Fix to rpc.ldmd for a subtle yet major problem which would cause core dumps on SunOS 5. (Thanks harry and chad) Kludge to rpc.ldmd ldm-4 access control so it will accept data from 'mctingest'. (Thanks chad.)
More functions in ldmadmin, esp for pqsurf(1) queue management. rpc.ldmd gets it buffer size from the OS. (Expect more tweaking in this realm.)
Fixes to ldmadmin and associated documentation incorporated in to beta release. Change to pq_seqdel() function, visible in pqbinstats(1), to wait on locks. Eliminates confusing log messages. Include AIX 4.1 in UPC regression tests. Beta rev now ldm-5beta.5.
Fix to pqbinstats incorporated in to beta release, beta rev now ldm-5beta.4.
Today we're making an ldm version 5 beta release. An announcement was made to top tier relays and selected sites.
Today we're making a new version of the decoders beta release, containing the gribtonc decoder changes needed to handle the change in the ETA model ID associated with the change from 80km resolution to 48 km resolution. A compressed tar file of 2.0.4 beta release of the source is in the directory.
A useful resource for users of the HRS product stream is a new NWS directory containing documents for AWIPS product matrices, giving the grids, parameters, levels, and forecast times for each model run. Thanks to Micki Farley at NMC for making this information available on-line.
A new maintenance release of the LDM, version 4.2.73, was released today. An announcement of the release sent to the ldm-users mailing list gives the most important changes, enhancements, and bug fixes.
Version 1.0 of syscheck was made available today. An announcement of the release sent to the ldm-users mailing list describes the utility and includes the README file for the release. This utility will be included in the next release of the LDM software. The release is available from the Unidata anonymous FTP server.
Version 1.0 of netcheck was made available today. An announcement of the release sent to the ldm-users mailing list describes the utility and includes the README file for the release. This utility will be included in the next release of the LDM software. The software is available from the Unidata anonymous FTP server.
The software, in both source code and binary distributions, is available from the Unidata anonymous FTP server. Binary releases are available for the following operating systems:
The source release (from which the above binaries were built) is available. The release announcement includes additional information, and more details are available in the documentation accompanying the software.
A note from NMC this morning informs us that the demise of the 2.5 x 5.0 deg. aviation global model products from the HRS datastream (product IDs matching "^H.[A-D]... KWBC ...... /mAVN") has been postponed to 5 June 1995 from the previously announced date of 18 April 1995. For your information, here is a compilation of the email thread about the thinned grid issue.
NOUS40 KWBC 051512
FOS NOTICE NO 657 04-05-95
**************************NOTICE******************************
HRS SUBSCRIBERS
AT 12Z ON 11 APRIL... THE PRODUCTION OF THE AVIATION
1.25X1.25 (WAFS) PRODUCTS WILL BE MOVED FROM THE HDS COMPUTERS TO
THE CRAY COMPUTERS. THE TIME OF CREATION AND TRANSMISSION TO THE
NWSTG SHOULD BE APPROXIMATELY THE SAME TIME... PERHAPS EVEN
BETTER IN THE NEAR FUTURE.
THERE WILL BE ONE SLIGHT CHANGE WITH THIS PROCESSING. OCTET
6 OF THE PRODUCT DEFINITION SECTION (PDS) FOR THE 00HR PRODUCTS
WILL BE CHANGED FROM 77 (4D HEX) TO 81 (51 HEX). THIS CORRECTLY
REFLECTS THAT THE ANALYSIS/00HR PRODUCTS ARE GENERATED BY THE
SPECTRAL STATISTICAL INTERPOLATION (SSI) MODEL. IT IS SUGGESTED
THAT USERS BE FLEXIBLE AND ALLOW FOR '77' OR '81' IN THEIR CODES.
THIS WILL PROTECT EVERYONE IN THE EVENT THAT THIS CHANGE HAS TO
BE POSTPONED OR IN THE EVENT THAT THE HDS VERSION IS USED FOR
BACKUP PURPOSES.
As an example, a pqact.conf entry such as the following:
# File "thinned grid" products
#
HRS ^H.[I-P]... KWBC ([0-3][0-9])([0-2][0-9]).*/mAVN
FILE data/GRIB/(\1:yy)(\1:mm)\1\2_avn.wmo
would have to be changed to something like:
# File "thinned grid" products
#
HRS ^H.[I-P]... KWBC ([0-3][0-9])([0-2][0-9]).*(/mAVN|/mSSIAVN)
FILE data/GRIB/(\1:yy)(\1:mm)\1\2_avn.wmo
NOUS40 KWBC 031919
FOS NOTICE NO 655 04-03-95
**************************NOTICE******************************
HRS SUBSCRIBERS
EFFECTIVE 18 APRIL 1995...THE 2.5 X 5.0 DEGREE FOS BULLETINS
(2440) WILL BE REMOVED FROM THE FAMILY OF SERVICES HIGH
RESOLUTION DATA SERVICE.
indicates that the aviation global model products from the HRS datastream on 2.5 x 5.0 deg. lat/lon grids (product IDs matching "^H.[A-D]... KWBC ...... /mAVN") will disappear from the HRS datastream on 18 April 1995. The UPC is working on providing decoding of the "thinned grid" versions of these products onto a regular lat/lon grid for use in applications. More information will be available soon. [Note: the April 18 date was later postponed to 5 June.]
Information about the online Winter '95 LDM Workshop presentations is now available to WWW browsers from the LDM homepage. These online presentations have been updated from the Fall '94 LDM Workshop.
As a reminder, here are example entries for the pqact.conf file to file ETA and RUC products:
#
# File raw GRIB messages corresponding to ETA model on the Q (211) grid
#
HRS ^[YZ].Q... KWBC ([0-3][0-9])([0-2][0-9]).*/mETA
FILE data/GRIB/(\1:yy)(\1:mm)\1\2_eta.wmo
#
# File raw GRIB messages corresponding to RUC model on the Q (211) grid
#
HRS ^[YZ].Q... KWBC ([0-3][0-9])([0-2][0-9]).*/mRUC
FILE data/GRIB/(\1:yy)(\1:mm)\1\2_ruc.wmo
There is now an HTML version of the RUC Technical Procedures Bulletin (NWS TPB #416, September 27, 1994) including the figures available in the published bulletin. This document describes the Rapid Update Cycle products that have been added to the HRS data stream.
A problem was reported with the ulog library in the LDM 4.1.38 release on HPUX platforms. A fix has been developed for the problem, and new HPUX binaries are now available. For more details or for the patch necessary for the source, see the text of the message on this problem from Glenn Davis.
The software, in both source code and binary distributions, is available from the Unidata anonymous FTP server. Binary releases are available for the following operating systems:
The release announcement includes additional information, and more details are available in the documentation accompanying the software.
We're testing LDM 4.1.38 on local platforms and revising the Site Manager's Guide for a new release (probably next Wednesday). The new release will incorporate the following features and fixes (more detail will be provided in the RELEASE_NOTES accompanying the release):
WSI has made available via the World Wide Web a NEXRAD site maintenance utility for all current WSI/UNIDATA NEXRAD customers. For more details, see the WSI announcement of the NEXRAD utility or the new WSI Homepage.
A PostScript version of the RUC Technical Procedures Bulletin (NWS TPB #416, September 27, 1994, sans figures for now) describing the Rapid Update Cycle products beginning to appear on the HRS data stream is now available.
Alden said they have improved the way they are generating the DIFAX products announced last week, so users should see improvements in the quality of the resulting images.
#
# File raw GRIB messages corresponding to ETA
#
HRS ^[YZ].Q... KWBC ([0-3][0-9])([0-2][0-9]).*/mETA
FILE data/GRIB/(\1:yy)(\1:mm)\1\2_eta.wmo
#
# File raw GRIB messages corresponding to RUC
#
HRS ^[YZ].Q... KWBC ([0-3][0-9])([0-2][0-9]).*/mRUC
FILE data/GRIB/(\1:yy)(\1:mm)\1\2_ruc.wmo
We installed a new version of pqing at Alden that appends a model identifier to the product identifiers for HRS GRIB products injected into the IDD. This permits sites to disambiguate between RUC and ETA model data that now use identical WMO headers. The new version of pqing adds "/mXXX" to the product identifier for IDD HRS products, where "XXX" is an abbreviation for the model.
The tags added to the HRS GRIB products by the new ingester are:
10 /mNOW Global Wind-Wave Forecast Model 25 /mSNO Snow Cover Analysis 39 /mNGM Nested Grid Forecast Model 44 /mSST Sea Surface Temperature Analysis 64 /mROI Regional Optimal Interpolation Analysis 77 /mAVN 126 wave triangular, 28 layer Spectral Model from Aviation Run 78 /mMRF 126 wave triangular, 28 layer Spectral Model from Medium Range Forecast Run 83 /mETA ETA Model - 80 km version 86 /mRUC RUC/MAPS Model 88 /mPWAV Ocean Wave model with additional physics 121 /mECMF Something from ECMWF... 122 /m122 Newer ECMWF model
Alden announces the distribution of the National Weather Service DIFAX service via the Internet. If you are interested in subscribing to this service please let Alden know by addressing your messages to "arbettere@alden.com" or by calling Edie Arbetter at 508-366-8851 extension 2258. We're now able to convert the new G3 format DIFAX products from Alden to GIF and PostScript files for viewing or printing. An active mailing list, difax at unidata.ucar.edu, is exploring the best way to do this. More information on the DIFAX products.
Steve Emmerson and Tom Yoksas have managed to get a special OS/2 LDM module running that enables an OS/2 system to capture the McIDAS data from an upstream site that is relaying the data using the LDM. With this OS/2 module, there is no need for the upstream node to run any special software other than the LDM. Currently the module only runs on OS/2 systems with the IBM TCP/IP package. We are working with FTP, Inc. to get an upgrade to their package so the module will run with their software as well. In the meantime OS/2 sites using FTP, Inc.software continue to be fed reliably using mctingest.
Scheduled date for termination of the Alden C Band broadcast. Alden extends the C-Band broadcast for a few more weeks, giving sites some extra time to switch to getting their data via the IDD or Ku-Band broadcast.
Accelerated deployment of the IDD using LDM 4.1 has been going on during the month of November. For a chronicle of this effort, see the IDD What's New document. 62 university sites that we know of are now running the LDM 4.1 software.
Harry Edmon contributed a fix for the gribtogem and gribtonc decoders that permitted them to decode the new HRS RUC products. The fix turns out to be a mixed blessing, because the RUC model output grids are the same used for the ETA model, so the RUC grids overwrite ETA grids in decoded files produced by gribtogem and gribtonc.
We began seeing Rapid Update Cycle (RUC) products appear for 6-hour forecasts on the HRS data stream. Some of them have identical WMO headers to ETA products. The gribtogem and gribtonc decoders are both exiting when trying to decode these products.
We added an HTML document on LDM Product Streams to the LDM Home Page and from that a HTML document on the HDS data stream. As time allows we will fill in similar information on other data streams.
We created the mailing list alias "hrs at unidata.ucar.edu" for the old hds at unidata.ucar.edu mailing list, since the HDS data stream has been renamed HRS for about a year.
Robb Kambic released a new perl script, ldmprods, that displays local product statistics in one minute intervals. This can make it easier for a site administrator to monitor LDM performance and catch problems early.
Mitch Baltuch released the first version of IDD monitor software, a Motif v1.2-based application that provides an interactive monitoring facility for nodes on the Internet Data Distribution (IDD) system. It is designed to provide visual and audible cues when LDM servers on specified IDD nodes are not responding.
We discovered an incorrect recommendation in the LDM documentation that was leading some sites to put in crontab entries that mailed in statistics reports at 5 minutes past the hour. The optimum time for mailing in the reports is 35 minutes after the hour.
ldm.tar.Z
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