A person responsible for the implementation of electronic data interchange systems between companies. The EDI analyst is technical consultant for the trading partners and is involved with deploying systems using the traditional EDI standards and XML-based Web implementations.
Volcanic ash is also harmful when inhaled and  can damage the eyes and lungs. It can clog the engines of cars and  aircraft, and can bring down planes in flight. In some eruptions,  superheated clouds of ash and gas called pyroclastic flows race  down the slopes of a volcano.
The bottom of the cloud is known as the cloud base and the top is the towering part of the cloud. The towering part, in a cumulonimbus cloud known as a towering cumulonimbus, is what is able to grow. They're not flat on the bottom. You should see a ceilometer trace some time.