well as a storm
2.The occurrence and evolution of an oceanic tropical squall line observed on 22 February 1993 during TOGA-COARE over the equatorial Pacific Ocean were simulated by use of a three-dimensional, nonhydrostatic storm-scale numerical model ARPS. The capacity of ARPS to simulate such tropical squall line was verified. The structure and dynamic mechanism of the squall line were discussed in details as well.
3.The Emerald ash borer has destroyed trees in the middle west and as far east in the United States as Maryland.The insects have also spread as far north as Ontario Canada.Ash trees are popular,they grow well in heavy clay soils and they can survive ice storm well.They produce many leaves,so they provide shade protection from the sun.And in the fall,the leaves turn a beautiful golden and purple.

