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  • Jiading District

Tucson (/ˈtuːsɒn, tuːˈsɒn/; Spanish: Tucson, O'odham: Cuk-Ṣon) is a city in and the county seat of Pima County, Arizona, United States, and is home to the University of Arizona. It is the second largest city in Arizona behind Phoenix, with a population of 542,629 in the 2020 United States census, while the population of the entire Tucson metropolitan statistical area (MSA) is 1,043,433. The Tucson MSA forms part of the larger Tucson-Nogales combined statistical area (CSA). Both Tucson and Phoenix anchor the Arizona Sun Corridor. The city is 108 miles (174 km) southeast of Phoenix and 60 mi (97 km) north of the U.S.–Mexico border. Tucson is the 34th largest city and the 53rd largest metropolitan area in the United States (2014).

Major incorporated suburbs of Tucson include Oro Valley and Marana northwest of the city, Sahuarita south of the city, and South Tucson in an enclave south of downtown. Communities in the vicinity of Tucson (some within or overlapping the city limits) include Casas Adobes, Catalina Foothills, Flowing Wells, Midvale Park, Tanque Verde, Tortolita, and Vail. Towns outside the Tucson metro area include Benson to the southeast, Catalina and Oracle to the north, and Green Valley to the south.

Tucson was founded as a military fort by the Spanish when Hugo O'Conor authorized the construction of Presidio San Agustín del Tucsón in 1775. It was included in the state of Sonora after Mexico gained independence from the Spanish Empire in 1821. In 1853, the United States acquired a 29,670 square miles (76,840 km2) region of present-day southern Arizona and southwestern New Mexico from Mexico under the Gadsden Purchase. Tucson served as the capital of the Arizona Territory from 1867 to 1877. Tucson was Arizona's largest city by population during the territorial period and early statehood, until it was surpassed by Phoenix by 1920. Nevertheless, population growth remained strong during the late 20th century. In 2017, Tucson was the first American city to be designated a "City of Gastronomy" by UNESCO.

Jiading District, which belongs to Shanghai, is located in the northwest of Shanghai, with its center at 121o 26 east longitude & 31 °39-#39; north latitude of #39;,. It borders Baoshan and Putuo districts in the east, Kunshan City in Jiangsu Province in the west, Wusong River in the south, Minhang, Changning and Qingpu districts in the south, and Taicang City in Jiangsu Province in the north. The total area is 463.55 square kilometers. The whole territory of Jiading District is flat, slightly higher in the northeast and slightly lower in the southwest. The municipal and district-level rivers of Miao Bang, Lianqi River and Loutang River lie from east to west and flow eastward through Baoshan District to the Yangtze River and Huangpu River. Yantietang, Hengli and Xinhuanpu (Luohe River) run from north to south, connecting with Wusong River and Liuhe River. The water area rate of the whole region is 7.71%. The total length of the river is more than 1800 kilometers. The average density of the river network is per square meter.
Airport In Jiading District - Shanghai Pudong International Airport
Shanghai Pudong International Airport (Shanghai Pudong International Airport, IATA code: PVG, ICAO code: ZSPD), located in Pudong New Area, Shanghai, China, about 30 kilometers away from the center of Shanghai, is a 4F civil airport and one of the three major portal complex hubs in China one   , members of the international air cargo hub group in the Yangtze River Delta region, and members of the East China Airport Group   , the largest hub airport and gateway airport in East China   .
Shanghai Pudong International Airport was completed in 1999. On September 16, 1999, the first phase of the project was completed and opened to navigation. On March 17, 2005, the second runway was officially opened. On March 26, 2008, the second terminal and the third runway were officially opened to navigation. Opening, the fourth runway was officially opened on March 28, 2015.
According to the information on the official website in September 2019, Pudong Airport has two terminals and a satellite hall, with a total area of ​​1.456 million square meters   , with 340 parking bays   ; There are four runways, 2 at 3800 meters, 1 at 3400 meters and 1 at 4000 meters.   As of the end of 2016, Pudong Airport has attracted 37 airlines to operate all-cargo aircraft business here, and the all-cargo aircrafts are available to 31 countries and 112 destinations, with nearly 1,000 all-cargo aircraft taking off and landing every week.  
In 2019, the annual passenger throughput of Pudong Airport was 76.1534 million passengers, the annual cargo and mail throughput was 3.6356 million tons, and the annual take-off and landing flights were 511,846. As of the end of 2017, 110 airlines have launched regular flights to the two major airports in Shanghai, and Pudong Airport is connected to 297 navigation points in 47 countries and regions around the world.  
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