TABLE OF CONTENTS


MLT_RSS/AMSU_Diurnal.f90/amsu_ccm3_diurnal_tb [ Subroutines ]

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NAME

       amsu_ccm3_diurnal_tb

PURPOSE

       calculates diurnal value from diurnal climatology for given channel,fov,location,date and local_time

INPUTS

       chan    AMSU_CHANNEL
       fov     AMSU Field of View
       lon     longitude
       lat     latitude
       date    date, to find time of year, in date structure (date_str) defined in date_and_time.f90
       local_time  local time, defined in time structure (time_str) defined in date_and_time.f90

RETURNED VALUE

       diur_tb  interpolated value of dirunal Tb

USAGE

       tb_diurnal = amsu_ccm3_diurnal_tb(chan,fov,lon,lat,date,local_time)

MLT_RSS/AMSU_Diurnal.f90/calculate_diurnal_correction [ Subroutines ]

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NAME

      calculate_diurnal_correction

PURPOSE

      Calculate Diurnal Correction for a single AMSU scan line

INPUTS

      channel     AMSU channel number

INPUTS_OUTPUTS

      L2A_Scan    Structure containing AMSU L2A Scan data

OUTPUTS

      Error       Error Flag.  0 if everything OK, not zero otherwise

USAGE

      Call calculate_diurnal_correction(L2A_scan,channel,error)

MLT_RSS/AMSU_Diurnal.f90/read_amsu_ccm3_diurnal [ Subroutines ]

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NAME

        read_amsu_ccm3_diurnal

PURPOSE

        reads CCM3-derived AMSU Diurnal Climatology for the given AMSU channel

INPUTS

        chan    AMSU channel

OUTPUTS

        error   error flag.  0 if everything OK, -1 if invalid channel passed

REMARKS

        loads climatology into the module variable diur_tb_sim. The number of the channel currently loaded is contained in channel_loaded

USAGE

        call read_amsu_ccm3_diurnal(5,error)

MLT_RSS/AMSU_Diurnal.f90 [ Methods ]

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NAME

    AMSU_Diurnal.f90

PURPOSE

    Module for performing diurnal adjustment to AMSU measurements

DESCRIPTION

    Module for performing diurnal adjustment to AMSU measurements
    Uses a model derived diurnal climatology to make the adjustment

AUTHOR

    Carl Mears, Remote Sensing Systems

COPYRIGHT

   THIS SOFTWARE AND ITS DOCUMENTATION ARE COPYRIGHT 2012 REMOTE SENSING SYSTEMS.  
   THEY ARE PROVIDED FOR INFORMATIONAL AND ALGORITHM VERIFICATION PURPOSES ONLY 
   AND MAY NOT BE USED IN WHOLE OR IN PART FOR ANY OTHER PURPOSE WITHOUT WRITTEN
   PERMISSION FROM REMOTE SENSING SYSTEMS.  THEY ARE FURNISHED "AS IS." THE 
   AUTHORS, THE UNITED STATES GOVERNMENT, ITS INSTRUMENTALITIES, OFFICERS, EMPLOYEES, 
   AND AGENTS MAKE NO WARRANTY, EXPRESS OR IMPLIED, AS TO THE USEFULNESS OF THE 
   SOFTWARE AND DOCUMENTATION FOR ANY PURPOSE. THEY ASSUME NO RESPONSIBILITY (1) FOR
   THE USE OF THE SOFTWARE AND DOCUMENTATION; OR (2) TO PROVIDE TECHNICAL SUPPORT 
   TO USERS.

HISTORY

    8/15/2012 Initial Version prepared for NCDC

USAGE

    use AMSU_Diurnal