Fēngyún (Traditional Chinese: 風雲; Simplified Chinese: 风云; literally: "wind cloud"), abb. FY are China's weather satellites. China has launched polar orbit and geosynchronous orbit meteorological satellites since 1988. Traditional Chinese characters are one of two standard sets of printed Chinese characters. ... Simplified Chinese characters (Simplified Chinese: 简体字; Traditional Chinese: 簡體字; pinyin: jiǎntǐzì; also called 简化字/簡化字, jiǎnhuàzì) are one of two standard character sets of printed contemporary Chinese written language. ... FY or fy can stand for: Fiscal year West Frisian language (ISO 639-1 alpha-2) Tajikistan, in ham radio Macedonia, the former Yugoslav Republic of in the list of NATO country codes Feynmanium (137Fy) – a nickname for untriseptium (Uts), chemical element 137. ... GOES-8, a United States weather satellite. ... A satellite in a polar orbit passes above or nearly above both poles of the planet (or other celestial body) on each revolution. ... It has been suggested that this article or section be merged with geostationary orbit. ... Meteorology is the scientific study of the atmosphere that focuses on weather processes and forecasting. ... An Earth observation satellite, ERS 2 For other uses, see Satellite (disambiguation). ... 1988 (MCMLXXXVIII) was a leap year starting on Friday of the Gregorian calendar. ...

The satellites in the FY-1 series are polar orbiting sun-synchronous orbits. The satellites in the FY-2 series are in geosynchronous orbit. By analogy with the geosynchronous orbit, a heliosynchronous orbit is a heliocentric orbit of radius 24. ...

The newer FY-3 series is an improved generation of polar orbiting heliosynchronous weather satellites. The FY-4 series is an improved generation of geosynchronous meteorological satellites.

The meteorological satellites also important in oceanography, agriculture, forestry, hydrology, aviation, navigation, environmental protection and national defense. They contribute to the national economy and to preventing and mitigating disasters. The latest satellites monitor bad weather around the clock, particularly convective rainstorms, thunderstorms and hailstorms. They also monitor developing sandstorms as well as air quality and provide early warnings. Thermohaline circulation Oceanography (from Ocean + Greek γράφειν = write), also called oceanology or marine science, is the branch of physical geography that studies the Earths oceans and seas. ... A decidous beech forest in Slovenia. ... Water covers 70% of the Earths surface. ... Aviation refers to flying using aircraft, machines designed by humans for atmospheric flight. ... Table of geography, hydrography, and navigation, from the 1728 Cyclopaedia. ... Environmental movement is a term often used for any social or political movement directed towards the preservation, restoration, or enhancement of the natural environment. ... Any activity or effort performed to protect a nation against attack or other threats. ... Convection is the transfer of heat by the motion of or within a fluid. ... Rain falling Rain on an umbrella Rain is a form of precipitation, as are snow, sleet, hail, and dew. ... A shelf cloud associated with a heavy or severe thunderstorm over Enschede, The Netherlands. ... Hailstorm A hailstorm is a meteorological event, being a storm in which a large amount of hail falls. ... Sandstorm can refer to: Sandstorms, a term used for dust storms in the desert. ...

According to the Beijing Evening Post, China's National Satellite Meteorological Center (NSMC) has said the Asian nation plans to launch several FY meteorological satellites before the 2008 Olympiad; those satellites would help forecasters predict weather for the Beijing Olympics. An Olympiad is a period of four years, associated with the Olympic Games. ... The 2008 Summer Olympics, officially known as the Games of the XXIX Olympiad, will be held in Beijing in the Peoples Republic of China from August 8, 2008 to August 24, 2008, with the opening ceremony to take place at 8 p. ...