San Jose,[A] officially San José (/ˌsæn hoʊˈzeɪ, -ˈseɪ/; Spanish: [saŋ xoˈse]; Spanish for 'Saint Joseph'),[B] is a major city in the U.S. state of California that is the cultural, financial, and political center of Silicon Valley and largest city in Northern California by both population and area. With a 2020 population of 1,013,240, it is the most populous city in both the Bay Area and the San Jose-San Francisco-Oakland Combined Statistical Area, which contain 7.7 million and 9.7 million people respectively, the third-most populous city in California (after Los Angeles and San Diego and ahead of San Francisco), and the tenth-most populous in the United States. Located in the center of the Santa Clara Valley on the southern shore of San Francisco Bay, San Jose covers an area of 179.97 sq mi (466.1 km2). San Jose is the county seat of Santa Clara County and the main component of the San Jose–Sunnyvale–Santa Clara Metropolitan Statistical Area, with an estimated population of around two million residents in 2018.
Wangqing County belongs to Yanbian Korean Autonomous Prefecture of Jilin Province. Its geographical location is between 129 °51 Mel 130 °56'E and 43 °06 Mel 44 °03'N. It is bordered by Hunchun City in the east, Dunhua City in the west, Tumen City and Yanji City in the south, and Ning'an, Muling and Dongning counties in Heilongjiang Province in the north. The north-south length is 108 kilometers, and the east-west horizontal distance is 152 kilometers. Wangqing County has jurisdiction over 8 towns and 1 township. Wangqing County is 40 kilometers from the Russian border and 18 kilometers from the North Korean border. Wang Qing is located in the foothills of Changbai Mountain, which belongs to the mountain area, with an average elevation of 806 meters. It belongs to the continental mid-temperate windy climate, with long winter and short summer, four distinct seasons and great vertical variation. The annual average temperature is 3.9mm, the annual average rainfall is 580mm, the frost-free period is 110141days, and the annual sunshine.