Analsis of historical AVHRR PATMOS aerosol data in support of the long-term trend study

The long-term trend of aerosol optical thickness (AOT) over the global oceans has been studied by using a nearly 25-year aerosol record from the Advanced Very High Resolution Radiometer (AVHRR) Pathfinder Atmosphere (PATMOS) climate data. Both global and regional analyses have been performed to derive the AOT tendencies for monthly, seasonal, and annual mean AOT values at AVHRR 0.63mum channel (or Channel-1). A linear decadal change of -0.01 is obtained for globally and monthly averaged aerosol optical thicknesses of AVHRR Channel-1. Sensitivity analyses have also been performed to study the effects of radiance calibration and aerosol retrieval algorithm on the global aerosol long-term tendencies.

[1]  E. Dutton,et al.  Do Satellites Detect Trends in Surface Solar Radiation? , 2004, Science.

[2]  A. Lacis,et al.  Aerosol retrievals over the ocean by use of channels 1 and 2 AVHRR data: sensitivity analysis and preliminary results. , 1999, Applied optics.

[3]  C. Moulin,et al.  TOMS and METEOSAT satellite records of the variability of Saharan dust transport over the Atlantic during the last two decades (1979–1997) , 2002 .

[4]  David G. Streets,et al.  Sulfur dioxide emissions in Asia in the period 1985–1997 , 2000 .

[5]  Nicholas R. Nalli,et al.  The Advanced Very High Resolution Radiometer (AVHRR) Pathfinder Atmosphere (PATMOS) Climate Dataset: Initial Analyses and Evaluations , 2002 .

[6]  Brian Cairns,et al.  Global Two-Channel AVHRR Retrievals of Aerosol Properties over the Ocean for the Period of NOAA-9 Observations and Preliminary Retrievals Using NOAA-7 and NOAA-11 Data , 2002 .

[7]  Zhanqing Li,et al.  Quality and compatibility analyses of global aerosol products derived from the advanced very high resolution radiometer and Moderate Resolution Imaging Spectroradiometer , 2005 .

[8]  C. Rao,et al.  Post-launch calibration of the visible and near-infrared channels of the Advanced Very High Resolution Radiometer on the NOAA-14 spacecraft , 1996 .

[9]  Cyril Moulin,et al.  Understanding the long‐term variability of African dust transport across the Atlantic as recorded in both Barbados surface concentrations and large‐scale Total Ozone Mapping Spectrometer (TOMS) optical thickness , 2005 .

[10]  Michael Q. Wang,et al.  An inventory of gaseous and primary aerosol emissions in Asia in the year 2000 , 2003 .

[11]  Michael I. Mishchenko,et al.  Regional advanced very high resolution radiometer–derived climatology of aerosol optical thickness and size , 2005 .

[12]  A. Heidinger,et al.  Using Moderate Resolution Imaging Spectrometer (MODIS) to calibrate advanced very high resolution radiometer reflectance channels , 2002 .

[13]  Changyong Cao,et al.  Predicting Simultaneous Nadir Overpasses among Polar-Orbiting Meteorological Satellites for the Intersatellite Calibration of Radiometers , 2004 .

[14]  Alexander Smirnov,et al.  Regional evaluation of an advanced very high resolution radiometer (AVHRR) two‐channel aerosol retrieval algorithm , 2004 .

[15]  Robert Joseph Andres,et al.  Historical Sulfur Dioxide Emissions 1850-2000: Methods and Results , 2004 .

[16]  Brian Cairns,et al.  Long-Term Satellite Record Reveals Likely Recent Aerosol Trend , 2007, Science.

[17]  Tom M. L. Wigley,et al.  Global and regional anthropogenic sulfur dioxide emissions , 2001 .

[18]  Alexander Ignatov,et al.  Development, validation, and potential enhancements to the second‐generation operational aerosol product at the National Environmental Satellite, Data, and Information Service of the National Oceanic and Atmospheric Administration , 1997 .