GOES-R | ABI - AIRS simulation | ABI - MODIS simulation | HES web page
January 2008 AMS Conference...
January 21, 2008
Tim Schmit et al. powerpoint presentation: The ABI on GOES-R
Presentation in PDF formatJan 4, 2008
ABI IR Weighting Functions:
Web page with pre-comptuted ABI IR weighting functions for the clear-sky.
GOES-10 Sounder and Imager for the clear-sky.
GOES-13 Sounder and Imager for the clear-sky.
GOES-R ABI bit-depth ...
May 25, 2007
Preliminary information regarding ABI IR bit-depth:
This file summarizes the ABI bit depths for the IR bands (D. Hillger and T. Schmit). Also see a related AMS pre-print article from 2004.
A spreadsheet was used to check the IR ABI bit depth calculations.
A memo from 1991 on the GOES-I/M GVAR scale coeffs.
April 11, 2007
Seminar:
This presentation on the GOES-R ABI was given on January 17th, 2007.
March 20, 2006
Seminar:
This presentation on GOES was given as a NOAA/NESDIS STAR seminar on March 17th, 2006.
December 23, 2005
Simulated ABI datasets:
These pages describe how select MODIS (MODerate-resolution Imaging Spectroradiometer) (and other satellite) data have been reformatted for use in ABI (Advanced Baseline Imager) data compression studies.
August 17, 2005
An ABI overview article:
T. J. Schmit, M. M. Gunshor, W. Paul Menzel, Jun Li, Scott Bachmeier, James J. Gurka, 2005: Introducing the Next-generation Advanced Baseline Imager (ABI) on GOES-R, Bull. Amer. Meteor. Soc., Vol 8, August, pp. 1079-1096.
Contact the ABI Team for a copy of the manuscript: E-Mail Contact FormJuly 25, 2005
Dust detection from EUMETSAT's MET-8: Java applet and Animated GIF image
March 15, 2005
Spatial and Spectral GOES US imager comparison:
GIF image
March 02, 2005
These are similar to those listed below for October 21, 2003. With code borrowed from Mike Griffin of MIT-LL, these spectral response functions were created because they fit the full-width half-max points accurately. These have been nicknamed "GBH" which stands for "Gaussian-Boxcar Hybrid" because they have a gaussian curve for the sides and then flatten out at the top like a boxcar function.
The only differences between this release of SRFs (02Mar2005) and the previous release (23Jan2004) are in these three bands:
Band 3 FROM 0.84-0.88 (0.86) TO 0.846-0.885 (0.865) Band 4 FROM 1.365-1.395 (1.38) TO 1.371-1.386 (1.378) Band 6 FROM 2.235-2.285 (2.26) TO 2.225-2.275 (2.25)
You can FTP these files from ftp://ftp.ssec.wisc.edu/ABI/SRF - FTP anonymously to the machine ftp.ssec.wisc.edu and go into the ABI/SRF directory. The SRFs are ascii text files and there is a readme file as well. Older versions are there in separate directories.
February 16, 2005
Fade between a GOES and "ABI" (from MODIS) image:
Java applet that fades between a GOES and "ABI" image
Animated GIF of GOES and "ABI" image
Improved spatial resolution of the infrared window bands of the ABI demonstrated from MODIS data (a) for a convective cloud case. Note the colder cloud-top brightness temperatures and the sharper “Enhanced V” signature located over central Tennessee on 25 May 2000. Also of interest are the concentric anvil-layer waves observable in the higher spatial resolution IR data, associated with rapidly intensifying convection along the Missouri/Arkansas border region. These are not evident in (b), the current GOES imager data.February 11, 2005
Misc. pdf of a GOES-R summary:
GOES-R Summary Presentation in PDF format
February 10, 2005
Link to pages with various ABI WFs:
GOES-R ABI clear-sky weighting functions
July 22, 2004
Tim Schmit et al. powerpoint presentation: The GOES-R Series Advanced Baseline Imager (ABI)
Presentation in Powerpoint format
All presentations from this conference can be found at this FTP site .
Proposed GOES-R Logo...
February 23, 2004
Large JPEG image Small JPEG image Transparent GIF imageMarch 2, 2004
Comparison from 24 February, 2004
Western Atlantic Region Side-by-side Comparisons Java AVI
Near full disk Side-by-side Comparisons Java AVI
February 25, 2004
Comparison using Hurricane Isabel, 12 Sept. 2003
Approximate ABI Sample Java AVI
Side-by-side Comparison Java AVI
January 2004 AMS Conference...
January 21, 2004
Tim Schmit et al. powerpoint presentation: Study of ABI on the GOES-R and Beyond
Presentation in PDF formatJanuary 12, 2004 Click here
November, 2003
See spectrally simulated ABI images from MODIS data. Images are updated
daily at 23:20 UTC.
Simulated ABI Images -- Java Loop
October 21, 2003
The SRFs in "New SRF simulations" from October 21, 2003 (below) are used here to create weighting functions for the U.S. Standard Atmosphere with a view angle of 40 and surface pressure of 1000mb.
A preliminary/working draft of the Performance Operation Requirement Document (PORD) is available from NASA at http://goes2.gsfc.nasa.gov/abihome.htm
October 21, 2003
With code borrowed from Mike Griffin of MIT-LL, these spectral response functions were created because they fit the full-width half-max points accurately, whereas the older "Mock" SRFs did not. These have been nicknamed "GBH" which stands for Gaussian-Boxcar Hybrid because they have a gaussian curve for the sides and then flatten out at the top like a boxcar function.
See the plot here.
You can FTP them from ftp://ftp.ssec.wisc.edu/ABI/SRF - FTP anonymously to the machine ftp.ssec.wisc.edu and go into the ABI/SRF directory. The SRFs are there in ascii text files (grab everything there, which will include a readme).
Download the current bandwidth specifications (current as of October 2003)
Notes: The current plan is for there to be 16 bands on the ABI. The first 6 are visible/near IR bands. There currently is not an official band numbering; the band numbering provided here is provided for simplification.
June 30, 2003
See spectrally simulated ABI images from AIRS data. Images are updated
daily at 23:00 UTC.
Simulated ABI Images -- Java Loop
June 6, 2002
Last update: June 30, 2003
Simulated visible and near IR ABI images were created by convolving high
spectral resolution aircraft data from the AVIRIS instrument. From the
AVIRIS radiance files, specific ABI bands were made into smaller radiance
files using a program from Michael Griffin from MIT/LL. From these
radiance files images were created using the ENVI software. Click on
the link to continue to the images.
Visible & near IR images
January 28, 2003
Tim Schmit et al. powerpoint presentation: Bands and Products from the
Next Generation Geostationary Imager -- the ABI
Presentation
in PDF format
Shortened
presentation
VISITview
ABI Lesson.
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MODIS Visible Bands Used for ABI Compression Studies... July 15, 2002 View the Compressed MODIS Visible Bands
Simulated ABI Images...Simulated ABI images were created by convolving high spectral resolution aircraft data from the NAST-I instrument with the mock ABI spectral response functions. Click on the band number to view the image.
ABI Power Point Presentation...In February, 2000 Tim Schmit presented an updated plan to the University of Wisconsin's Cooperative Institute for Meteorological Satellite Studies (CIMSS). You can view the PDF Adobe Acrobat version which opens in a new window (this file is approximately 7mb and is best viewed with Acrobat Reader 4.0). Or download the original Microsoft Powerpoint (Microsoft Office 97 SR-1) presentation.
ABI 12 Channel Proposed Bandwidths...October 25, 1999
The Proposed Bandwidths (IR only) are plotted with a HIS Brightness Temperature Spectrum comparing the 12 channel proposal to the old 8 channel...
ABI Power Point Presentation...On September 23, 1999 Tim Schmit presented a plan at the NOAA R&D Council Meeting for a 10 Band ABI instrument. You can view the slideshow or download the original Microsoft Powerpoint (Microsoft Office 97 SR-1) presentation.
ABI Proposed Bandwidths...June 16, 1999ABI (June, 1999)
The Proposed Bandwidths are plotted with the HIS Brightness Temperature Spectrum...
Cloud Phase and ABI Channels plot courtesy of Allen Huang. Cirrus Cloud Particle Effective Radius plot from
"Model Calculations and Interferometer Measurements of Ice Cloud Characteristics."
by Sunggi Chung, Steven Ackerman, Paul F. van Delst, and W. Paul Menzel.
Weighting Functions...August 13, 1999Weighting functions for example wet and dry atmospheres were calculated for the mock spectral response functions for ABI proposed water vapor channels (4 and 5). The weighting functions were calculated for example wet and dry atmospheres with a zenith angle of 40. The numbers in parentheses are central wavelengths (mm) and the corresponding brightness temperatures (degrees Kelvin) also appear on the plot. Weighting functions for the mock spectral response functions have been calculated for ABI proposed channels 3-10. The weighting functions were calculated for a standard atmosphere with a zenith angle of 40. The numbers in parentheses are central wavelengths (mm) and the corresponding brightness temperatures (degrees Kelvin) also appear on the plots. The plot of ABI channels 3-10. The plot of "surface viewing" channels 3, 8, 9, and 10 with corresponding GOES-8 (chs 2, 4, 5) and GOES-12 (ch 6) imager channels. The plot of water vapor channels shows channels 4 and 5 of the ABI along with GOES-8 channel 3 and GOES-12 channel 3. ABI Slideshow Presentation...View the slides from the ABI slideshow presentation. Spectral Response Functions...Mock Spectral
Response Functions are plotted with the HIS Brightness Temperature
Spectrum. Other satellite bandwidths...ABI (Study Report: November, 1998) Ch Wavelength |
Last updated: March, 2004.
URL: http://cimss.ssec.wisc.edu/goes/abi
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