ANSWERS TO REVIEW QUESTIONS

ANSWERS TO REVIEW QUESTIONS A1. The geographical coordinate system and the grid coordinate system. A2.. 1° A3. 23.9N and 120.6W. A4. The particular grid zone is identified by the column number and the row letter, A5. 24N and 32N latitude and 18W and 24W longitude. A6. A 10 meter grid zone. A7. Near the poles. A8. The geographic definition of the tropics is the area of the earth lying between the Tropic of Cancer at 23 1/2°N and the Tropic of Capricorn at 23 1/2°S A9. This is due to the curvature of the earth. Lines of longitude converge near the poles, and as Great Circle routes arc toward the poles, there is less distance between lines of longitude and thus a shorter distance to travel. A10. 1:10,000 since the smaller the scale the greater the detail. A11. The National Imagery and Mapping Agency (NIMA). A12. The National Imagery and Mapping Agency (NIMA) Catalog of Maps, Charts, and Related Products. A13. A WMO blocck/station number ending in zero indicates a designated synoptic observation reporting station. A14. The Master Weather Station Catalog. A15. The letter "K". A16. FAA Order 7350.6 Location Identifiers. A17. A forecast normally covers a shorter period of time (less than 72 hrs) while an outlook is typically for 3 to 10 days in the future and implies a lower level of confidence. A18. A briefing aid is any product designed primarily to be used in a briefing to assist the explanation of the current and forecast positions. A19. Yellow. A20. (a) Occluded front: purple. (b) Instability/squall line: blue. 4-39