ANSWERS TO REVIEW QUESTIONS

ANSWERS TO REVIEW QUESTIONS A1. Zero degrees (0°). A2. Geostationary, earth-synchronous, or geosynchronous. A3. Ascending-node. A4. The satellite’s orbit is synchronized with the movement of the sun across the earth’s surface. A5. 0200 local. A6. Major changes in a satellite’s apogee and perigee positions are caused by the shape of the earth, and the gravitational pull of the earth, sun, and moon. A7. Atmospheric sounders provide vertical temperature and moisture profiles, and atmospheric stability data. A8. Geostationary satellites are ideal for making large-scale, frequent observations over a fixed geographical area A9. GOES East. A10. Polar-orbiting. A11. Because of their relatively low-altitude orbits, polar-orbiting satellites provide higher resolution data than geostationary satellites. They also provide imagery for the high- latitude and polar regions. A12. 2700 km (1500 nmi). A13. Fleet Numerical Meteorology and Oceanography Center (FNMOC). A14. METEOSAT A15. A radiometer. A16. The sensor with 1 kilometer spatial resolution. A17. The cold object. A18. Longwave radiation. A19. Red. A20. Sand. A21. Infrared imagery is available day and night. It is also an excellent tool for oceanographic analysis and is also helpful for identtfiing upper-level features. A22. White. A23. Relatively light gray shades. A24. Water vapor imagery produces better definition of the moisture distribution and circulation patterns in the upper atmosphere. A25. An enhanced satellite image provides better definition, which allows the user to view specific details. 1-38