• Mesa
  • Chengdu

A mesa is an isolated, flat-topped elevation, ridge or hill, which is bounded from all sides by steep escarpments and stands distinctly above a surrounding plain. Mesas characteristically consist of flat-lying soft sedimentary rocks capped by a more resistant layer or layers of harder rock, e.g. shales overlain by sandstones. The resistant layer acts as a caprock that forms the flat summit of a mesa. The caprock can consist of either sedimentary rocks such as sandstone and limestone; dissected lava flows; or a deeply eroded duricrust. Unlike plateau, whose usage does not imply horizontal layers of bedrock, e.g. Tibetan Plateau, the term mesa applies exclusively to the landforms built of flat-lying strata. Instead, flat-topped plateaus are specifically known as tablelands.

Chengdu, the vice-provincial city of Sichuan Province, also known as "Chengdu and Jincheng", is the capital of Sichuan Province, the vice-provincial city, the mega-city and the headquarters of the western theater organs. It is an important national high-tech industrial base, trade and logistics center and comprehensive transportation hub determined by the State Council, and an important central city in the western region. In 2018, the city has jurisdiction over 11 districts and 4 counties and escrow 5 county-level cities, including Chengdu Direct Administration area of Sichuan Tianfu New area, Chengdu High-tech Industrial Development Zone and Chengdu Economic and technological Development Zone, covering an area of 14335 square kilometers, with a resident population of 16.33 million and GDP of 1534277 million yuan. Chengdu is located in southwest China, western Sichuan Basin and the hinterland of Chengdu Plain, with flat terrain, vertical and horizontal river network, rich products and developed agriculture, belonging to the subtropical monsoon.
Airport In Chengdu - Chengdu Shuangliu International Airport
Chengdu Shuangliu International Airport (Chengdu Shuangliu International Airport, IATA: CTU, ICAO: ZUUU), located at the junction of Shuangliu District and Wuhou District, Chengdu City, Sichuan Province, China, about 16 kilometers northeast from the center of Chengdu, is a 4F international aviation hub , one of the eight major regional hub airports in China   , an aviation hub and passenger and cargo distribution center in China's inland areas.     
The predecessor of Chengdu Shuangliu International Airport is Chengdu Shuangguisi Airport, which was built in 1938. On December 12, 1956, Chengdu Shuangguisi Airport was renamed Chengdu Shuangliu Airport.   On November 30, 1995, Chengdu Shuangliu Airport was approved to change its name to Chengdu Shuangliu International Airport. On August 9, 2012, Terminal 2 of Chengdu Shuangliu International Airport officially opened.   
According to the information on the airport's official website in August 2017, the airport has 2 terminals with a waiting area of ​​500,000 square meters, which can meet the annual passenger throughput of 50 million passengers. There are 3 air cargo terminals and 2 parallel runways. , there are 3 aircraft parking areas with a total area of ​​9.4127 million square meters; a total of 228 parking spaces (as of January 2020)   ; 270 air routes have been opened, connecting 209 cities at home and abroad.  
In 2019, Chengdu Shuangliu International Airport handled a total of 55,858,552 passengers, a year-on-year increase of 5.5%, ranking fourth in the country; cargo and mail throughput was 671,903.9 tons, a year-on-year increase of 1.0%, ranking sixth in the country; aircraft movements were 366,887 Flights, a year-on-year increase of 4.2%, ranking fifth in the country   .
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