FreeBSD, Debian/Ubuntu and CentOS packages are available
for the latest release of Gempak, which should have better support
for the new radar and satellite files.
The packages are available in the software section of the web site.
The latest revision of Nbsp supports IDV catalogs out-of-the-box.
This allows IDV users to access the data files from a remote Nbsp server.
The packages are available in software section of the web site.
The final Nbsp-2.0.r2 packages have been uploaded.
More information and upgrading hints
The Nbspgpmap package is being released simultaneously. This package consists
of a bunch of program scripts that use the Tclgempak library to drive
several of the Gempak plot programs.
The Tclssh package is included in this release. This package allows
one host to execute tcl commands (and scripts) in a remote host (via ssh).
More information
The packages and sources of the first release of Nbsp (G2) have been posted.
The Nbspadm package is available for
upgrading Nbsp
as easily as ever.
Radar level II data can be received only from certain sites, using LDM.
Nbsp now has the capability to receive level II data from Ldm,
process it and redistribute it. Once Nbsp receices the data from Ldm,
it is handled the same way as the data that comes from Noaaport.
In particular, it is sent to the filters for further processing,
and to the server for redistribution to slaves and clients.
Pre-release packages of Nbsp-2.0 have been posted.
The framework for creating
nexrad mosaics
is included.
Nbsp has been updated to handle the new dual polarization radar files.
Preliminary packages based on this version (2.0) have been released
for testing, along with corresponding packages of
Gempak based on the latest 5.11.4 revision.
The Centos-5.4 and Debian-5.0.x packages for the latest
version (1.8.r5) of Nbsp are available, which correct
an error (introduced in r3) in the code that handles the retransmissions.
The Freebsd-7.2, Centos-5.3 and Debian-5.0.x packages for the latest
version (1.8.r3) of Nbsp are available. There is a revision and correction
of the code that keeps track of the files received, which makes it
handle the retransmissions better.
The Freebsd-7.2 and Centos-5.3 packages for the latest
version (1.8.r2) of Nbsp and Npemwin are available for public download,
and Debian 5.0.x will soon be there as well. This will be the last version
of Nbsp/Npemwin for sometime. We are installing a new system and
making a substantial revision to the software, and therefore
cannot test these packages ourselves now, but we will keep making corrections
and revisions based on the feedback that we receive.
Nbsp and Npemwin 1.8.r1 are available for FreeBSD-7.2, CentOS-5.3 and
Debian-5.0. This version of Nbsp has many enhancements compared to 1.7.r3
and two major additions.
- The weatherscope-extension is now fully integrated
and distributed with the Nbsp package.
Two new filters (uafilter, wsfilter) have been added to expand the support
for
Weatherscope.
The uafilter converts the upperair data to the mdf format
used by Weatherscope and the wsfilter converts model grib forecast data.
The program can now display
metar, nids (radar) and grib (model)
data from an Nbsp server, which includes
hundreds of parameters from different models,
grids, levels and forecast time combinations.
- An enhanced mode for master/slave configuration in which the
master's spool area resides entirely in memory.
The packages are available for FreeBSD-7.1, Debian-5.0 and CentOS-5.3.
The weatherscope-extension allows the Weatherscope
program to import data from an nbsp server. The current version has
support for
metar and nids (radar)
files. The packages, which are available
in the software section of this site, contain a the set of configuration files
that must be installed in both the server and client.
-
Support for
Weatherscope
-
Support for the
NCDC Weather Climate Toolkit (WCT).
-
Support for
StormLab 4.
-
A new
Exporter
module that allows client applications
to query and retrieve by http all the data available in the nbsp server.
The api consists of just three commands that are sent to the server
by http. The results of the queries can be returned in an easy to
parse format in plain text or xml.
- Improved handling of retransmissions.
TclGempak is a library of of procedures for executing Gempak programs
from tcl scripts. TclMetar is a library of procedures for decoding
Metar reports from tcl scripts. They complement TclGrads,
and both borrow from the functionality of nbsp,
but they are general purpose and can be used in other setups.
Packages for MacOSX, Debian (and Ubuntu) available.
A significant update to Nbsp -
- Improvement in the usage of the disk I/O subsystem.
- The ``heavy'' filters can spawn multiple instances of themselves
for parallel processing.
- A new type of setup for master-slave configurations, in which
the master uses a spool file system that resides entirely in memory.
- "On-demand" generation from the web interface of all the "latest" radar
images for every radar site, with minimal impact on performance.
- A new hurricane tracking filter, ``trackfilter''.
- The ``dafilter'' can save the radar data files such that they
can be loadad by the NCDC
Climate Tool
- A new set of the statistics graphs, by the minute, which can reveal
spikes in the transmitted, received and missing product rates
that the hourly graphs can hide.
This is the first release of TclGrADS,
a pure Tcl (Expect) interface to GrADS which is
developed and released as part of the
OpenGrADS
project. More information is available in the
wiki
page.
In this update in Nbsp:
- A new filter ``trackfilter'' for tracking hurricanes
We have established a
donations
page.
In this update in Nbsp:
- A new mechanism for deleting old files. The new tools can
delete over 50,000 files per minute.
Thus, the runs of the hourly cleanup job that used to take
about 20 or 30 minutes now take three or four minutes.
The new mechanism is based on an inventory that is kept of the
product files created by the various filters, which may have other
uses as well.
- A new filter ``msgfilter'', imported from Npemwin,
provides a general purpose notification mechanism based on
zones and product codes (see the Npemwin entry).
- All the filters are now executed directly using the tcl library
functions instead of using popen(), thereby bypassing a shell invocation.
In this update in Npemwin:
- The msgfilter has been imported from nbsp. This is a
dedicated messaging facility for sending
full tex bulletins and/or summaries by smtp
(i.e., email and sms to cell phones, for example) to a list
of "subscribers". The message sent to each "subscriber" is filtered
by the three-letter product code and UGC zones. The filter uses a
powerful regular expression matching model to allow fairly
complicated product code and UGC zones combinations for each
"subscriber".
The filter has been designed such that it can be extended to
include other transport methods. The actual implementation
will depend on the interest, motivation and feedback.
In this update in Nbsp:
- Revised the code to create the loop sequences of satellite and
radar images in the rstfilter.
Among other things, it is possible now to set a delay (different from the
inter-image delay) after the last frame of the sequence, before the
loop starts again.
- When creating satellite images with the outline maps (using gpmap_gif)
in the rstfilter, it is now possible to set an option to avoid creating
the png files leaving only the gif files.
- A "spoolfilter" for creating a secondary and more permanent
spool directory. It can be used in special configurations in
which the main spool directory resides completely in memory,
or for long term retention or archival purposes.
- A new ``uwildmat''-like mechanism in the filters library.
(used now by the rst, rstnntp, nntp, spool, filters,
and also in nbspd [defaults.h, globals.h, etc, nbspd.conf])
to restrict the products that are processed at various stages.
- A new network-aware tool for batch processing.
In this update in Npemwin:
- Added summary, forecast and data subdirectories to the "latest"
directory and in the web serevr menu.
- Added the spoolfilter and batch tools (imported from nbsp)
In this update in Nbsp:
- A new filter for producing RSS feeds for text files.
- Generation of loop sequences for radar and satellite images.
In this update in Npemwin:
- A new filter for producing RSS feeds for text files.
- A new filter gpfilter for processing the data files in a
form compatible with the Gempak programs. It requires Gempak but it does
not require LDM.
In this update:
- Nbsp and Npemwin now use the new Metar decoding library,
written from scratch purely in Tcl.
- The Metar plots now use the gd library via gnuplot.
- The Metar reports use a database to display the location
(lat, lon, city, airport) of the observing stations.
- The inventory files (and the raw data files themselves) for the
- last minute
- last hour
- past hour
- last few hours (3 hours in Nbsp, 24 hours in Npemwin)
are accessible from the web server menu (``Products received'' menu item),
and they can be downloaded by http with any tool such as
wget or curl from the corresponding url.
I thank Bill Harris for suggestions and help with testing.
webmaster@noaaport.net
Tue Jun 1 10:06:54 AST 2010