Guangdong-Hong Kong-Macao Greater Bay Area enjoys superior geographical conditions, surrounded by mountains on three sides and three parallel rivers. It has a long coastline, a good port group, a vast sea area and a vast economic hinterland. The Pan-Pearl River Delta region has a land area of about 1/5, a population of 1/3 and an economic aggregate of 1/3. By the end of 2020, the permanent population of Guangdong-Hong Kong-Macao Greater Bay Area is 12.
The Pearl River Delta, where nine cities in the mainland of Guangdong-Hong Kong-Macao Greater Bay Area are located, was originally called Guangdong Plain, or Pearl River Delta for short. It is located in the south-central part of Guangdong Province, bordering the South China Sea. It is a compound delta formed by three tributaries, namely Pearl River, Xijiang River, Beijiang River and Dongjiang River, which are jointly alluvial in gullies and bays. Located in the south of the Tropic of Cancer, it is the largest alluvial plain in the south subtropical region of China. The Hong Kong Special Administrative Region is located to the east of the Pearl River Estuary,
Climatic characteristics
The Pearl River Delta in Guangdong-Hong Kong-Macao Greater Bay Area belongs to subtropical humid monsoon climate, which is characterized by high annual temperature, abundant sunshine, long summer, short frost period, abundant precipitation and good coordination between water and heat seasons. Annual sunshine hours 1, 900-2000 hours, annual average temperature 2 1-22℃, actual frost period less than 3 days, annual precipitation 1, 600.
April-September is the rainy season every year, and the precipitation accounts for about 80% of the whole year. The annual variation of precipitation is bimodal, with the highest peak in June and the second peak in August. The major tributaries alternate in flood season, but there are many typhoons in summer and autumn, and the flood threat is great. There are four distinct seasons in Hong Kong. Northwest monsoon blows in winter, southeast monsoon blows in summer, and there are occasional cold waves. The average temperature in Leng Yue is 15- 18℃, while in Macau, it is warm in winter and hot in summer, and the climate is humid and rainy, with obvious wet and dry seasons.
Reference to the above content: Baidu Encyclopedia-Guangdong-Hong Kong-Macao Greater Bay Area