• Mesa
  • Changchun

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.

Changchun, referred to as "Chang" for short, also known as Chuncheng, Xidu, Chachong and Huanglongfu in ancient times, is the capital of Jilin Province, a vice-provincial city and the central city of Northeast Asia economic circle. It is one of the central cities and important industrial bases in Northeast China approved by the State Council. By 2018, the city had jurisdiction over seven districts, one state-level new district (Changchun New District, China's 17th state-level new district) and two county-level cities, with a total area of 20593.5 square kilometers (excluding Gongzhuling for the time being) and a built area of 519.04 square kilometers. the registered household population is nearly 8 million (excluding Gongzhuling for the time being), the urban population is 4.415 million, and the urbanization rate is 58.8%. Changchun is located in Northeast China, located in the geographical center of Northeast China, with Songyuan City, Siping City, Jilin City and
Airport In Changchun - Changchun Longjia International Airport
Changchun Longjia International Airport (Changchun Longjia International Airport, IATA: CGQ, ICAO: ZYCC), located at the junction of Donghu Town and Longjia Town, Jiutai District, Changchun City, Jilin Province, China, about 32 kilometers southwest of Changchun city center and southeast About 76 kilometers away from the center of Jilin, it is a 4E-level international trunk airport, an international regional hub in Northeast Asia, and a freight distribution center for China and Europe   .
On May 29, 2003, Changchun Longjiahu Airport officially started construction; on July 15, 2005, Changchun Longjiahu Airport was renamed "Changchun Longjia International Airport"; on August 27, 2005, Changchun Longjia International Airport officially Open to aviation, Changchun Dafangshen Airport and Jilin Ertaizi Airport have been transferred to this location for overall civil aviation operations   .
As of February 2021, Changchun Longjia International Airport has 2 terminals with a total construction area of ​​204,000 square meters; the civil aviation station has 61 aircraft seats, including 32 near aircraft seats; the runway is 3,200 meters long and 45 meters wide ; It can meet the needs of annual passenger throughput of 16 million passengers   .
In 2020, the passenger throughput of Changchun Longjia International Airport was 9.360541 million passengers, a year-on-year decrease of 32.8%, ranking 29th in the country; the cargo and mail throughput was 83,672 tons, a year-on-year decrease of 5.9%, ranking 32nd in the country; the number of aircraft movements was 75,510 Flights, down 23.6% year-on-year, ranking 37th in the country   .
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