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nsWAFS is the NetSys SADIS FTP/WIFS HTTPS data processing offering. It
provides a turnkey solution for reception, decoding, storage and presentation of meteorological and other data relevant to commercial and
general civil aviation operations. As a bare minimum, it complies with the
basic requirements of such a system as dictated by ICAO. Through
innovation and feedback from our customers over the years, we have
transcended these boundaries in all directions to provide a complete
system for the most demanding meteorological offices. Flexible licensing
schemes allow prospective customers to mix-and- match options to suit
budget and specific needs.
Whether your requirements are basic or you need a sophisticated
solution, please join us in perusing the following brief sections for an
introduction to this system that is proven to provide cost effective
operational solutions.
10
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6
0
P
SBCF
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20W
SBSV
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30W
40W
0
Introduction
50W
N
10
L
HA Cluster
5
Single server configurations are supported of course, but for sites requiring
mission critical service levels a High Availability Cluster is the preferred
20S choice.
Such a system advertises the servers in the cluster to the outside world by a single
IP address and transparently handles assignment of the address to the elected live
Ethernet interface by means of a HA heartbeat process. This makes configuration
and interaction of any 3rd parties with the cluster much simpler and less error
prone. All transactions happening on the live server are replicated to the standby
server to ensure both are in step at all times should a live server breakdown
warrant a hot-standby swap.
H
H
30S
STANDBY
SBKP
C
Industry Standards
C
L
4
10
S
5
The system is fully compliant to the WMO Manuals on the GTS 386 and
Codes 306 as well as ICAO Annex 3 and remains up to date as
Amendments are made (currently supports
up to Amendment 77). NetSys is listed on the
UKMO SADIS portal as a verified supplier.
3
A
L
High Availability
Small
Large
H
SBPA
P
Organization Router
LIVE
Public Internet
19
HG
FAGE
40S
Public Internet
SADIS FTP or WIFS HTTPS
COTS Hardware
NetSys elects to use Commercially Off The Shelf hardware only, with a
preference for Dell and HP
server and workstation equipment
providing hot swappable components
running the Linux operating system.
SULS
M
S
Pr
Firewall
Organization Router
H
20
L
Printer
Workstation/
Server Combined
… Workstations
SAZM
Standard Features
M
W
80
Chart Generation
Apart from the standard ICAO regions, custom projections can be created through
a region builder wizard supporting a large number of map projection types and
different colour map background options. In addition to the normal Wind/Temp
charts from GRIB and SIGWX charts from BUFR, overlays of other data types can be
depicted by ISO contours and shaded reliefs. A powerful chart group composer
makes it easy to define and manage sets of charts across different flight levels,
regions and data types through a single entry screen. These groups can be
S
scheduled based on time or events such as a complete GRIB or BUFR set50
received.
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20W
40W
60S
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90
Communications
Standards
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80S
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80S
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60S
50S
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S
30
40
110
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343
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70
When the user falls within the footprint of the SADIS service, the system
downloads data from the secure SADIS FTP service and verifies W
downloaded data against its digital signatures. When within the
traditional ISCS footprint, data is downloaded from the WIFS HTTP service.
The downloaders keeps track of downloaded data to accommodate
80
breaks in connectivity.
We also have numerous deployed examples of input from variousWother
sources supplementing SADIS/ISCS data in the event of sparse regional
representation in the WAFS data catalog. To accomplish this the system
can be fed from the AFTN, AMHS X400, WMO GTS and other industry
standards such as FTP, HTTP, SCP, RCP, E-Mail and directories
90with files.
W through a
The communications sub-system is configured and monitored
user friendly state-of-the-art Rich Internet Architecture user interface.
NetSys often provides custom integration with non-standard feeds at
little or no extra cost to the customer.
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SAWG
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The basic ICAO requirements are supported:
• display of OPMET data
• GRIB decoder and display package
• BUFR decoder and display package
• display and ability to notify users of the arrival of chart
ammendments
• display and ability to notify users of the arrival of administrative
messages
• display of tropical cyclone advisory statements
• display of volcanic ash advisory statements
• display of volcanic ash trajectory dispersion charts
• display bulletin contents from the WMO header
• display of special AIREPs
• ability to receive SIGWX charts in PNG format
• ability to receive SADIS products via FTP and WIFS via HTTPS
There are however numerous extra features to satisfy the needs of a
modern aviation meteorological office as can be seen from the following
section.
21
SADIS FTP o
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H
39
4
41 0
42
90S
7
20E
10E
0
10W
5
K
HRYR
Route Briefings
Given the departure and destination aerodromes, the system can
generate a projection of a map region optimally depicting the route
between the two aerodromes on the fly or alternatively choose the most
appropriate ICAO standard map. It can be configured to automatically
include a succinct set of relevant METAR, TAF and SIGMET information
given the departure time and flight duration. A cross section along the
route for all flight levels can be generated depicting wind attack and
temperature, the zero and minus ten degrees contours plus terrain
profile. All these products can be included in a single flight briefing folder
along with take-off data and locally produced products. The folder has
personalized headings and is presented in high quality Adobe® PDF or
other suitable formats. Flight definitions can be saved for one-click future
production.
6
7
FAGF
G
HKMO
M
8
ons ...
FYKT
K
10
11
13 12
14
15
L
Printer
FWFA
V
L
9
4
5
6
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D
FMCZ
FAJS
J
16
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L
H7
1
OPMET Graphics
18
1 Various graphical depictions of OPMET
messages can be displayed on an
2
222
interactive
map
area. A time slide bar allows the user to see into the
3
4 software automatically switches between the relevant
25the
future while
26
validity periods in observations
forecasts. FIR related data such as
27 andduring
SIGMET colors
its area of influence
validity. Aviation Meteograms
31
are3also
3 available per station by single mouse click.
H
36
35
4
HE
G
FMMT
T
P or WIFS HTTPS
31
33
GRIB Laboratory
FAME
M
0
A powerful GRIB Laboratory allows the user to interact freely with GRIB
32
10E
data. The data source is not limited to WAFS GRIB only but can originate
from any WMO GRIB 1 or 2 compliant source. Visualization can be done
by smooth shading, ISO contours and ISO region colouring as well as
wind barbs and arrows. Streamline analysis can be performed on any
U/V component data. Custom colour palettes can be designed to best
suit the data type and range under inspection. Column cuts can be done
through all flight levels above a region and ISO contours for a cross-section along a route can be created. Filtering of data from below or above
is possible to focus on a specific range. A formula editor allows
meteorologists to combine different GRIB elements mathematically to
create new types such as voritcity and heat indices.
GRIB data can be displayed in multiple colour bands to highlight areas
of concern. Temporal animations of GRIB can be done at the click of a
button. This allows the officer to observe the movement direction and
speed of, for instance, fronts, storms and cloud volumes over the next
couple of hours as forecasted.
E
20
E
33
30
Scheduling of Briefings
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40
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42
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41
E
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35
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0
49
3
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37
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35
60
36
H
35
34
36
E
38
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The system can be configured to run in a lights-out mode by pre-scheduling route briefings to be produced close to regular scheduled or ad-hoc
flight departures with the latest available data. Scheduling can be done
based on time of day on weekdays or specific dates and also based upon
events such as the entire GRIB set received. Briefings can be delivered in
any of a number of ways, such as print, fax, FTP, e-mail and Web to name
but a few. We like to refer to this as 0-click briefing.
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80E
60S
10W
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3
7
5
The various types of data downloaded from SADIS and WIFS can be
retrieved in a number of ways depending on the context of the search.
Standard ICAO area aviation charts can be selected from a map
responsive to mouse interaction and depitcing the chart regions.
Alphanumeric data can be retrieved by WMO abbreviated header query
with templates for those types often used. The user may also click on an
aerodrome to retrieve METAR and TAF and on a FIR to retrieve SIGMETs.
H
40E
Data Retrieval
OYSN
S
0
SIGMET Authoring
Positioned for Growth
Create perfectly coded SIGMET and AIRMET. Management of sequence
numbers are done automatically. A full audit trail of issued messages are
available. Overlay EUMETSat and NWP formulas to delineate the
phenomena boundaries with high accuracy using the mouse.
The system foundation is currently geared to handle IWXXM 2.0 input
and positioned to grow with the new direction of industry standards.
Delivery of generated products over AMHS X400 P3 is possible putting
this product at the fore-front of technology.
The same user interface also supports non-WAFS data handling through
activation of optional plug-ins. These support SYNOP, Upper Air,
EUMETSat and RADAR. This allows your organisation a cost-effective
upgrade path without incurring additional foundation costs to
incorporate these data types into work flows.
Web Briefing
NetSys is at the forefront of industry developments by being able to
supply a web briefing add-on facility with which users can register and
then log onto an access controlled web interface to setup new or load
previously configured route definitions and then download a briefing
folder containing the latest relevant data for the flight. This system is
already operational and serves hundreds of users on a daily basis. The
system is easy and slick to use so as to mitigate the effects of slow Internet
access. It eliminates the labour intensive tasks normally associated with
flight setup by providing a facility to automatically calculate the relevant
information for inclusion in the bulletin and at the same time keeping it
to the minimum to prevent bloated briefing folders. The briefing can be
viewed directly in the web browser but also downloaded in high quality
Adobe® PDF format for local printing to take onto the aircraft.
Radar and Satellite
Situational awareness is further
enhanced by the option to integrate
RADAR and Satellite imagery into the
user interface and perform a playback
to visually assess the local weather
trend.
For more information please see the nsWEBPIB brochure.
Monitoring
User-friendly Interface
A client-server implementation implies that the user interface can be
used from the local machine or a remote location. It boasts a modern
and aesthetically pleasing look to make it a pleasure to work with on a
day-to-day basis. Its well designed dialogs makes achieving objectives
easy and quick through simplicity and a purpose driven approach.
The interactive component of the system allows briefing offices to gain
access to numerous innovative products and decoded data values
relevant to aviation situational awareness. The world map can be
zoomed and rotated in real-time at will to observe weather phenomena
from the most appropriate angle.
Consistent use of graphical symbols make the user interface easy to
master. Interactive help in the form of a standard ‘WhatIs?’ function
elaborates on the purpose of an element on the spot.
The GUI contains a module for monitoring and reporting on reception
status of the SADIS and WIFS channels with the option to raise an alarm
in the event of inactivity for a set period of time.
System vital signs such as CPU, storage, connectivity and processes are
all monitored around the clock.
Training
NetSys provides extensive training on all aspects of the system to
ensure personnel are properly equipped to answer to the needs of all
their users. Training can be presented on-site or in sunny South Africa
where trainees are usually treated to local customs and stunning
scenery.
Pricing
The NetSys pricing structure is very flexible with the ability to quote for
a system serving the basic needs of an aviation meteorological office or
compose a solution to serve the needs of institutions with extended
responsibilities. The e-mail address [email protected] is the first point of
contact.
Conclusion
The nsWAFS solution is a complete, powerful and user-friendly product
with innovative features made possible by modern technology. It
addresses the growing demands of operational briefing offices around
the world and deserves consideration in terms of functionality,
affordability, performance and flexibility. This flexibility stems from the
team at NetSys who is willing and able to customize the product to
integrate into any environment seamlessly which in the end is sure to
reduce the total cost of ownership through stability and effectiveness.
Tel: + 27 12 349 2056 Fax: + 27 12 349 2757
Web: www.netsys.aero
IL Villaggio, 5 De Havilland, South Crescent, Persequor Technopark, Pretoria 0020, South Africa
© 2017 NetSys International. All rights reserved. All trademarks are acknowledged.