User's Guide

CREATMF

Create TOVS monthly climatology image

Function:

Create a TOVS monthly climatology image, also known as TOVS fill image, from 31 daily climatologies.

Parameters:

MONTH
Month of output image

DAY
Day of output image

YEAR
Four digit year of the output image

Examples:

  1. LAS> creatmf month=6 day=4 year=1997 waterbasedir="[dlloyd.tovs]"

    The monthly climatology image mf0604 is created in the current directory by averaging values from the daily climatologies. Daily climatology images from May 20 through Jun 19 are used.

  2. LAS> creatmf month=3 day=10 year=1996 waterbasedir="[dlloyd.tovs]"

    The monthly climatology image mf0310 is created in the current directory by averaging values from the daily climatologies images from Feb 24 through Mar 25 including Feb 29. The image for Feb 29 is used because the specified year is a leap year.

Description/Algorithm:

A list of all images to be included in the monthly climatology is compiled. The image list contains daily climatologies for 15 days on either side of the date of the monthly climatology image being created -- a total of 31 images. For each input image: the mean water vapor values are expanded into sums and added to a cummulative sum; the counts are added to a cummulative count. The cummulative sums are converted into means. If any holes exist in the final mean, they are filled by an 8-neighbor mean. A new image is created and its DDR is modified to put it into a geometric projection.

Nonfatal Error Messages:

    None.

Fatal Error Messages:

  1. [creatmf-clos] Error closing XXXXX file

    An error occurred closing the file XXXXX. Processing stops. Check with the system administrator if problem persists.

  2. [creatmf-fatal] Fatal error occurred

    A fatal error occurred. The message preceding this message indicates the reason for the fatal error.

  3. [creatmf-getbdr] Error retrieving output band ddr

    An error occurred while trining to read the band ddr from the output image. Check that the ddr was created for the output image. If not check that the user has write privileges for the working directory and rerun the process.

  4. [creatmf-getddr] Error retrieving output image ddr

    An error occurred while trying to read the output image ddr. Check that the ddr was created for the output image. If not, check that the user has write privileges for the working directory and rerun the process.

  5. [creatmf-gtbuf] Error reading from input image XXXXX

    An error occurred while reading from the image XXXXX. Check that the image exists and the user has read privileges.

  6. [creatmf-ptbuf] Error writing to output file

    An error occurred while attempting to write to the output file. Check that the user has write privileges to the working directory.

  7. [creatmf-putbdr] Error writing band XX ddr

    An error occurred writing band XX ddr for the output image. Check that the user has write privileges to the working directory.

  8. [creatmf-putddr] Error writing the output image ddr

    An error occurred writing the image ddr for the output image. Check that the user has write privileges to the working directory.

User Notes:

    None