IASI 2010-2011-2012 970-600 mb CH4 Comparison

IASI 2010
 
The following imagery has been generously provided by Dr. Leonid Yurganov, JCET Research Group, UMBC. It maps the 2010 IASI CH4 methane PPBv data as a 10 day average from 970-600 mb or from 1,201.6 feet or 366.3 meters to 13,794.9 feet or 4,204.7 meters - the lower troposhere.
 
 
For the science, IR processing and platform description, see this paper: http://www.atmos-chem-phys.net/9/7889/2009/acp-9-7889-2009.pdf
 
The actual alghorithm is explained in:
 

Xiong X, Barnet C, Maddy E, Wei J, Liu X, and Pagano T S (2010) Seven Years’ Observation of Mid-Upper Tropospheric Methane from Atmospheric Infrared Sounder. Remote Sens 2: 2509-2530, doi:10.3390/rs2112509

 

All IASI data are downloaded from  http://www.nsof.class.noaa.gov/saa/products/welcome 

 

The AIRS algorithm by Xiong et al was applied to IASI without significant changes.

 

 

Dark Blue = 1780 PPBv
Dark Red = 1920 PPBv
 
 
The map record covers only September to November. Scroll down for comparisons.
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
  
 
  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
  
 
November 21-30, 2010 970-600 mb
 
November 11-20, 2010 970-600 mb
 
November 1-10, 2010 970-600 mb
 
October 21-31, 2010 970-600 mb
 
October 11-20, 2010 970-600 mb
 
October 1-10, 2010 970-600 mb
 
September 21-30, 2010 970-600 mb
 
September 11-20, 2010 970-600 mb
 
September 1-10, 2010 970-600 mb
IASI 2011
 
The following imagery has been generously provided by Dr. Leonid Yurganov, JCET Research Group, UMBC. It maps the 2011 IASI CH4 methane PPBv data as a 10 day average from 970-600 mb or from 1,201.6 feet or 366.3 meters to 13,794.9 feet or 4,204.7 meters - the lower troposhere.
 
 
For the science, IR processing and platform description, see this paper: http://www.atmos-chem-phys.net/9/7889/2009/acp-9-7889-2009.pdf
 

The actual alghorithm is explained in:

 

Xiong X, Barnet C, Maddy E, Wei J, Liu X, and Pagano T S (2010) Seven Years’ Observation of Mid-Upper Tropospheric Methane from Atmospheric Infrared Sounder. Remote Sens 2: 2509-2530, doi:10.3390/rs2112509

 

All IASI data are downloaded from http://www.nsof.class.noaa.gov/saa/products/welcome

 

The AIRS algorithm by Xiong et al was applied to IASI without significant changes.

 
 
Dark Blue = 1780 PPBv
Dark Red = 1920 PPBv
 
 
The map record covers only select periods of June to December. Scroll down for comparisons.
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
   
 
December 11-20, 2011 970-600 mb
 
December 1-10, 2011 970-600 mb
 
November 21-30, 2011 970-600 mb
 
November 11-20, 2011 970-600 mb
 
November 1-10, 2011 970-600 mb
 
October 21-31, 2011 970-600 mb
 
October 11-20, 2011 970-600 mb
 
October 1-10, 2011 970-600 mb
 
September 21-30, 2011 970-600 mb
 
September 11-20, 2011 970-600 mb
 
September 1-10, 2011 970-600 mb
  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 

 
  
 
 
 
 
 
 
 
July 11-20, 2011 970-600 mb
 
 
July 1-10, 2011 970-600 mb
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 

  
 
 
 
  
 
June 11-20, 2011 970-600 mb
IASI 2012
 
The following imagery has been generously provided by Dr. Leonid Yurganov, JCET Research Group, UMBC. It maps the 2012 IASI CH4 methane PPBv data as a 10 day average from 970-600 mb or from 1,201.6 feet or 366.3 meters to 13,794.9 feet or 4,204.7 meters - the lower troposhere.
 
 
For the science, IR processing and platform description, see this paper: http://www.atmos-chem-phys.net/9/7889/2009/acp-9-7889-2009.pdf
 

The actual alghorithm is explained in:

 

Xiong X, Barnet C, Maddy E, Wei J, Liu X, and Pagano T S (2010) Seven Years’ Observation of Mid-Upper Tropospheric Methane from Atmospheric Infrared Sounder. Remote Sens 2: 2509-2530, doi:10.3390/rs2112509

 

All IASI data are downloaded from http://www.nsof.class.noaa.gov/saa/products/welcome

 

The AIRS algorithm by Xiong et al was applied to IASI without significant changes.

 

Dark Blue = 1780 PPBv

Dark Red = 1920 PPBv
 
 
The comparisons are based upon what Dr. Yurganov has created/made available. The change in mb range does make a slight difference in comparison to prior years. 
 
 
 
 
 
 
 
December 21-31, 2012 600 mb 
 
 December 11-20, 2012 600 mb
  
December 1-10, 2012 600 mb
 
 November 21-30, 2012 600 mb
 
 
 November 11-20, 2012 600 mb
 
  November 1-10, 2012 600 mb
   
 October 21-31, 2012 600 mb
 
 October 11-20, 2012 600 mb
  
 October 1-10, 2012, 600 mb
    
 September 21-30, 2012 600 mb
 
 September 11-20, 2012 600 mb
 
September 1-10, 2012, 600 mb

August 11-20, 2012 970-600 mb

August 1-10, 2012 970-600 mb
 
July 21-31, 2012 970-600 mb
 
July 11-20, 2012 970-600 mb
 
July 1-10, 2012 970-600 mb
 
June 21-30, 2012 970-600 mb

June 11-20, 2012 970-600 mb
June 1-10, 2012 970-600 mb
May 21-31, 2012 970-600 mb
May 11-20, 2012 970 - 600 mb
May 1-10, 2012 970-600 mb
April 21-30, 2012 970-600 mb
April 11-20, 2012 970-600 mb
April 1-10, 2012 970-600 mb 
 
 March 21-30, 2012 970-600 mb