ICOADS Web information page (Wednesday, 29-Feb-2012 20:18:54 UTC):
International Maritime Meteorological Tape (IMMT-4) Format (deck 926) (by ESRL)
translation program
Table 1. Field-by-field mapping between the International Maritime Meteorological Tape
(IMMT-4)
format (left columns) and the International Maritime Meteorological Archive
(IMMA-0)
format (right columns). Mappings of fields configurations between IMMT and IMMA are direct (no transformation) except as listed below this table for fields marked with an asterisk "*" (note: preliminary information, under development).
IMMT-4 | * | IMMA-0
|
---|
![](images/immt4_fig0.gif) | |
| ![](images/immt4_fig1.gif) | * |
| ![](images/immt4_fig2.gif) | |
| ![](images/immt4_fig3.gif) | |
| ![](images/immt4_fig4.gif) | |
| ![](images/immt4_fig5.gif) | |
| ![](images/immt4_fig6.gif) | | ![lat](/images/imma_lat.gif)
| ![](images/immt4_fig7.gif) | * |
| ![](images/immt4_fig8.gif) | * |
| ![](images/immt4_fig9.gif) | * | ![hi](/images/imma_hi.gif)
| ![](images/immt4_fig10.gif) | * |
| ![](images/immt4_fig11.gif) | |
| ![](images/immt4_fig12.gif) | * |
| ![](images/immt4_fig13.gif) | * |
| ![](images/immt4_fig14.gif) | * |
| ![](images/immt4_fig15.gif) | |
| ![](images/immt4_fig16.gif) | * |
| ![](images/immt4_fig17.gif) | |
| ![](images/immt4_fig18.gif) | * | ![dpti](/images/imma_dpti.gif)
| ![](images/immt4_fig19.gif) | |
| ![](images/immt4_fig20.gif) | * |
| ![](images/immt4_fig21.gif) | |
| ![](images/immt4_fig22.gif) | |
| ![](images/immt4_fig23.gif) | |
| ![](images/immt4_fig24.gif) | * |
| ![](images/immt4_fig25.gif) | * |
| ![](images/immt4_fig26.gif) | * |
| ![](images/immt4_fig27.gif) | * |
| ![](images/immt4_fig28.gif) | * |
| ![](images/immt4_fig29.gif) | |
| ![](images/immt4_fig30.gif) | |
| ![](images/immt4_fig31.gif) | |
| ![](images/immt4_fig32.gif) | |
| ![](images/immt4_fig33.gif) | |
| ![](images/immt4_fig34.gif) | * |
| ![](images/immt4_fig35.gif) | |
| ![](images/immt4_fig36.gif) | |
| ![](images/immt4_fig37.gif) | |
| ![](images/immt4_fig38.gif) | |
| ![](images/immt4_fig39.gif) | |
| ![](images/immt4_fig40.gif) | |
| ![](images/immt4_fig41.gif) | * |
| ![](images/immt4_fig42.gif) | |
| ![](images/immt4_fig43.gif) | |
| ![](images/immt4_fig44.gif) | | (field not presently mapped)
| ![](images/immt4_fig45.gif) | |
| ![](images/immt4_fig46.gif) | |
| ![](images/immt4_fig47.gif) | |
| ![](images/immt4_fig48.gif) | |
| ![](images/immt4_fig49.gif) | |
| ![](images/immt4_fig50.gif) | * | ![wbti](/images/imma_wbti.gif)
| ![](images/immt4_fig51.gif) | |
| ![](images/immt4_fig52.gif) | |
| ![](images/immt4_fig53.gif) | |
| ![](images/immt4_fig54.gif) | |
| ![](images/immt4_fig55.gif) | |
| ![](images/immt4_fig56.gif) | * |
| ![](images/immt4_fig57.gif) | |
| ![](images/immt4_fig58.gif) | |
| ![](images/immt4_fig59.gif) | * |
| ![](images/immt4_fig60.gif) | * |
| ![](images/immt4_fig61.gif) | * |
| ![](images/immt4_fig62.gif) | * |
| ![](images/immt4_fig63.gif) | * |
| ![](images/immt4_fig64.gif) | |
| ![](images/immt4_fig65.gif) | | (field not presently mapped)
| ![](images/immt4_fig66.gif) | |
| ![](images/immt4_fig67.gif) | |
| ![](images/immt4_fig68.gif) | |
| ![](images/immt4_fig69.gif) | |
| ![](images/immt4_fig70.gif) | |
| ![](images/immt4_fig71.gif) | |
| ![](images/immt4_fig72.gif) | |
| ![](images/immt4_fig73.gif) | |
| ![](images/immt4_fig74.gif) | |
| ![](images/immt4_fig75.gif) | |
| ![](images/immt4_fig76.gif) | |
| ![](images/immt4_fig77.gif) | |
| ![](images/immt4_fig78.gif) | |
| ![](images/immt4_fig79.gif) | |
| ![](images/immt4_fig80.gif) | |
| ![](images/immt4_fig81.gif) | |
| ![](images/immt4_fig82.gif) | |
| ![](images/immt4_fig83.gif) | |
| ![](images/immt4_fig84.gif) | |
| ![](images/immt4_fig85.gif) | |
| ![](images/immt4_fig86.gif) | |
| ![](images/immt4_fig87.gif) | |
| ![](images/immt4_fig88.gif) | |
| ![](images/immt4_fig89.gif) | |
| ![](images/immt4_fig90.gif) | |
| ![](images/immt4_fig91.gif) | * |
| ![](images/immt4_fig92.gif) |
| ![](images/immt4_fig93.gif) | * |
| ![](images/immt4_fig94.gif) | |
| ![](images/immt4_fig95.gif) | | (field not presently mapped)
| ![](images/immt4_fig96.gif) | | (field not presently mapped)
| ![](images/immt4_fig97.gif) | | (field not presently mapped)
| ![](images/immt4_fig98.gif) | | (field not presently mapped)
| ![](images/immt4_fig99.gif) | | (field not presently mapped)
| ![](images/immt4_fig100.gif) | | (field not presently mapped)
| ![](images/immt4_fig101.gif) | | (field not presently mapped)
| ![](images/immt4_fig102.gif) | | (field not presently mapped)
| ![](images/immt4_fig103.gif) | | (field not presently mapped)
| ![](images/immt4_fig104.gif) | | (field not presently mapped)
| ![](images/immt4_fig105.gif) | | (field not presently mapped)
|
*
Following is a list of exceptions, organized by IMMA field name, to a direct mapping (IMMT=IMMA) of individual input IMMT field configurations (on the left) to IMMA output configurations (on the right).
Some outstanding questions in the transformation method are highlighted.
- IT
- "3"="0"
- "4"="1"
- "5"="2"
- LAT
- quadrant 3=negative LAT
- quadrant 5=negative LAT
- LON
- quadrant 5=negative LON[+360.0]
- quadrant 7=negative LON[+360.0]
- HI
- "0"="0"
- "1"="1"
- "2"="1"
- "3"="0"
- VI
- "0"="0"
- "1"="0"
- "2"="1"
- "3"="1"
- H
- "/"="A"
- N
- "/" and blank (assumed missing)=missing
- D
- "00"="361"
- "99"="362"
- tens=tens*10
- WI
- "0"="0"
- "1"="1"
- "3"="3"; related field action: knots=knots*0.51444444444444444444 for both W and RWS
- "4"="4"; related field action: knots=knots*0.51444444444444444444 for both W and RWS
- AT
- sign 1=negative AT
- DPTI
- "0"="0"
- "1"="0"; related field action: negative DPT
- "2"="2"; related field action: negative DPT
- "5"="1"
- "6"="1"; related field action: negative DPT
- "7"="3"; related field action: negative DPT
- SLP
- hundreds<500.0=hundreds+1000.0
- NH
- "/" and blank (assumed missing)=missing
- CL CM CH
- "/"="A"
- SST
- sign 1=negative SST
- SD
- "99"="38"
- OP
- "4"=missing (note: this configuration is not mapped to IMMA, because the meaning of that value changed from IMMT-III to IMMT-IV)
- WBTI
- "0"="0"
- "1"="0"; related field action: negative WBT
- "2"="2"; related field action: negative WBT
- "5"="1"
- "6"="1"; related field action: negative WBT
- "7"="3"; related field action: negative WBT
- SD2
- "99"="38"
- IC1 IC2 IC3 IC4 IC5
- "/"="A"
- SLHH
- sign 1=negative SLHH
- RWD
- "000"="361"
- "999"="362"
[Documentation and Software][Translation information]
U.S. National Oceanic and Atmospheric Administration hosts the icoads website
privacy
disclaimer
Document maintained by icoads@noaa.gov
Updated: Feb 29, 2012 20:18:54 UTC
http://icoads.noaa.gov/immt4.html
|