The ATOVS Reader program reads files in
the NOAA Level 1B, and compressed or uncompressed Eumetsat Level 1C and Level 1D
formats. Data from each of the twenty infra-red HIRS/3 channels, or any of the
20 microwave AMSU-A or AMSU-B channels may be displayed as a false-colour
brightness temperature plot. Data is geographically rectified and displayed on
various wide-scale projections.
The program can be automated for hands-off
operation of an ATOVS receiving system such as that offered on the EUMETSAT EARS
Please note that if you want to process the MSG-1 compressed data
from the EUMETCast service you need my MSG Data Manager
and GeoSatSignal programs. If you want to
receive the AVHRR data, high resolution image data, you need my AVHRR
Manager and HRPT Reader programs.
I have provided more details of receiving data from
broadcast satellites using DVB equipment. You should also
take a look at Hugh Marnoch 's site at: http://www.marnoch.org/msg/skystar.html.
Getting the ATOVS Reader
||Add saving of display as JPEG image files,
allow resizing of display, provide more map projections, provide choice of regions,
display cursor brightness temperature and location, register explorer right-click for L1B files,
display registered user name, tweak for Large Font display.
||Add Atlantic region (matches Digital Atmosphere), draw 10 degree gridlines
with Atlantic region, add choice of background colour.
||Add Kelvin/Celsius display option,
add fixed maximum temperature option, correct thick pen being used after data read error.
||Add filename display to title bar.
||Add save of binary
latitude/longitude/temperature data, improved Linux/Wine compatibility,
add experimental South America region, make gridline display optional, add
display pass group function, track channel changes in displayed
temperature-at-cursor, support NOAA-18 MHS L1C data over EUMETCast.
||Trap satellite name being not byte reversed,
warn if L1B variant is not supported.
||Support Metop-A data over EUMETCast, Centre
View|Diagnostics and Help|Register displays on the main form, compiled with Delphi 2007.
||Compiled with Delphi 2009.
||Add north-polar region for fast-dump data
from the Metop FDES service.
Download the ATOVS Reader V1.2.2 (414,295
MD5 checksum: DEC0CB96EFA591D5A1F22A3968E2DE9B
You can register the ATOVS Reader here.
The program requires registration, and a trial period registration is available
What is ATOVS?
The NOAA polar
orbiting satellites carry a variety of instruments that in an orbit that
provides global coverage. In addition to the high-resolution AVHRR
scanner, which can provide stunning false-colour
images, the satellites also carry sounders, which operate in the infra-red
and microwave bands. The infra-red sounder is called HIRS/3,
and the two microwave sounders AMSU-A
respectively. These instruments provide much more spectral detail about a
pixel, what its apparent temperature is in 40 different wavelengths, but at
fewer pixels per scan than the AVHRR scanner. ATOVS
thus allows analysis of the atmospheric state in the vertical profile as well as
parallel to the ground.
The data formats supported by the ATOVS Reader include the
data broadcast over the EUMETCast service,
and L1B data from NOAA-15 or later downloaded from the CLASS
Sample results from the ATOVS Reader
These images were produced by combining images from two parts
of the same pass in Paint Shop Pro. Because data is available from more
than one ground station, greater ground coverage is possible.
Composite AMSU-B image
AMSU-B channel 16, 89GHz
NOAA-16, 2003 March 26 at 14:11 UTC
Composite HIRS/3 image
HIRS/3 channel 8, 11.2um
NOAA-16, 2003 March 26 at 14:11 UTC