Once data were available on wind speed and direction, a circular slide rule-like device called a "'wind component indicator "'( see the left-most image below ) was used to figure out the components of the wind that affected either the range or the deflection ( direction ) of the shells fired.
12.
Because the aircraft did not follow the ECHO 1 approach, it did not pass the only NBD available for determining the missed approach point, which was SAT NBD . The report concluded that " the fact that the crew did not follow the profile of the ECHO 1 [ approach ], along with their difficulty stabilizing the aircraft on a final approach, and the tail wind component condition may have contributed to their decision to discontinue the approach ."
13.
The original model code, called the Toulouse Off-line Model of Chemistry And Transport ( TOMCAT ), was written by Martyn Chipperfield at M�t�o France . " Off-line " in this sense describes the fact that although the meteorological data ( wind components and other fields ) which are used as input to the CTM typically derive from a general circulation model ( GCM ), the CTM is run as a separate program outside of a GCM; this is as distinct from a chemistry simulation scheme which runs within a GCM, in which the simulated chemical distributions, e . g . of ozone, can provide feedback on the meteorology via the GCM's radiation scheme.
