San Diego (/ˌsæn diˈeɪɡoʊ/ SAN dee-AY-goh, Spanish: [san ˈdjeɣo]; Spanish for 'Saint Didacus') is a city on the Pacific Ocean coast of Southern California located immediately adjacent to the Mexico–United States border. With a 2020 population of 1,386,932, it is the eighth most populous city in the United States and the seat of San Diego County, the fifth most populous county in the United States, with 3,338,330 estimated residents as of 2019. The city is known for its mild year-round climate, natural deep-water harbor, extensive beaches and parks, long association with the United States Navy, and recent emergence as a healthcare and biotechnology development center. San Diego is the second largest city in the state of California, after Los Angeles.
Wuping County is located in the southwest of Longyan City, Fujian Province, at the junction of Fujian, Guangdong and Jiangxi provinces, the southernmost end of Wuyi Mountains, the westernmost end of Longyan City, Shanghang County in Fujian Province in the east, Xunwu County and Huichang County in Jiangxi Province in the west, Jiaoling County and Pingyuan County in Guangdong Province in the south, and Changting County in Fujian Province in the north. it is an important transportation hub and material transfer and distribution center in western Fujian, eastern Guangdong and southern Jiangxi, known as the "Golden Triangle" in western Fujian. Wuping County is a low mountain and hilly area with an average elevation of 274m, with a slope from northwest to southeast, ravines vertically and horizontally, continuous mountains, the top of Liangshan, the highest peak, 1538 meters above sea level, high mountains in the northwest, wide flatlands in the southeast, mild climate, abundant rainfall, four distinct seasons, long summer and short winter, no severe cold in winter, no hot summer, and distinct dry and wet seasons. The annual average temperature is 17,519.6 degrees, with an annual drop.