Pictures of handwritten newspaper for World Meteorological Day on 3.23

3.23 World Meteorological Day Handwritten Newsletter Picture Selection 01

3.23 World Meteorological Day Handwritten Newspaper Picture Selection 02

3.23 World Meteorological Day Handwritten Newsletter Selected pictures from newspapers 03

World Meteorological Day popular science knowledge

The theme of World Meteorological Day 2016? Facing a hotter, drier and more waterlogged future?, listen to the weather of Yunnan Province Teacher Liu Yu, chief forecaster of the bureau, explains the theme for you to understand climate change in Yunnan. Interpretation of the theme: Climate change is affecting our natural and human environments. Greenhouse climate emissions continue to rise, and lower atmosphere and ocean temperatures are rising. Today, the earth's temperature is 1°C higher than at the beginning of the 20th century. Due to past and present human activities (including carbon emissions, land use changes, forest cover, etc.), there will be hotter days, warmer nights and heat waves in the future, and we must take measures to slow down and respond to this change. We must also respond more proactively to drought through integrated drought management, which requires guidance for decision-makers on effective policies and land management strategies. Climate change is also increasing the risk of heavy rains and flooding. Based on today's weather forecast, we must also increase research efforts to improve forecast accuracy to protect our lives and property from disasters. From national to local levels, meteorological departments at all levels will provide the best scientific knowledge and operational products about weather and climate change as much as possible to support my country's efforts to achieve sustainable development and respond to climate change. The climate change trend of Yunnan being hotter, drier and more flooded since the beginning of meteorological records 1. A summary of the trends of drought and flood changes in Yunnan since the beginning of meteorological records.

Since complete meteorological records were established in 1961, the average annual precipitation in Yunnan Province has shown a decreasing trend, especially since 2009. The decrease in precipitation has been very obvious, which is consistent with the national annual precipitation. There is no obvious increase or decrease trend. different. From the perspective of regional distribution, there was a slight increase in the west and a decrease in the central and eastern regions, with the eastern region decreasing at a larger rate. Judging from the decadal changes in annual precipitation in Yunnan Province, 1961-1970 and 1991-2000 were the periods when Yunnan had relatively large precipitation, while other years had relatively less precipitation. Especially after entering the 21st century, the annual precipitation The decline was very obvious and the drought lasted for several years. Therefore, the annual precipitation in Yunnan Province has large interannual oscillations (Figure 1). The year with the most precipitation was 2001 (1258mm), and the year with the least precipitation was 2009 (852mm). The difference between the two is more than 400mm. The period from 2000 to 2014 was the period with the lowest rainfall in Yunnan since meteorological records began. The top three lowest annual rainfalls (2009, 2011 and 2012) all occurred during this period.

2. Summary of temperature change trends in Yunnan. The annual average temperature change trend in Yunnan Province is opposite to the precipitation change, and the warming trend is more obvious. Judging from the annual average temperature changes in Yunnan, the temperature in Yunnan was the lowest in the 1970s, and then the temperature gradually increased. After entering the 21st century, Yunnan has the most obvious climate warming trend. From 1961 to 2015, the 11 years when the annual average temperature in Yunnan Province was above 17.0°C all occurred after 1998. Therefore, this period is the period with the highest annual average temperature since Yunnan has complete meteorological records. Judging from the annual average temperature changes in Yunnan from 1961 to 2015, the annual average temperature in the first 40 years was lower than the annual average. Among them, the annual average temperature in Yunnan from 1971 to 1980 was the lowest period and was higher than the annual average. 0.37℃ lower; after entering the 21st century, the province's annual average temperature has an extremely obvious rising trend, 0.36℃ higher than normal. The highest number of stations with daily maximum temperature of 30.0℃ in the province was in 2014, with 7427 stations. The period from 2000 to 2015 was the period with the highest annual average temperature in Yunnan since meteorological records began. Moreover, the top three highest annual average temperatures since 1961 (2010, 2015 and 2014) all occurred during this period. Therefore, Yunnan Climate warming has intensified significantly after 2010. 3. Which year and day is the hottest in Yunnan since meteorological records began? Which year is the hottest in Kunming and which day is the hottest. Since 1961, the highest annual average temperature in Yunnan Province was in 2010, the hottest year in Yunnan. The annual average temperature in the province was 17.6°C, which was 0.9°C higher than the same period in history, breaking the historical record since 1961. The hottest day in the province should be June 3, 2014. The average daily temperature of 125 stations in the province was 26.1°C, the highest in history. There were as many as 85 stations with an average daily temperature of 25.0°C. Kunming's hottest year was also 2010, with the annual average temperature of 17.6°C, 0.9°C higher than the same period in history, the highest since 1961. Kunming's daily extreme maximum temperature of 32.8°C occurred on May 25, 2014, which was the highest in 1951. highest value since. But the hottest day in Kunming occurred on June 4, 2014, with the daily average temperature as high as 25.6°C. 4. Which year was the most severe drought in Yunnan and the most severe drought in Kunming since meteorological records began? The most serious drought in Yunnan was from 2009 to 2014. During the six years, the average annual precipitation in Yunnan was only 940mm, which was 146mm (-13%) less than normal every year.

Among them, the most severe drought was in 2009. The average precipitation in the province in 2009 was only 852mm, 234mm (-22%) less than normal, and the lowest year since 1961. The worst drought in Kunming occurred in 2009, with annual precipitation of only 568.8mm, 413.5mm (-42.2%) less than normal. 5. Which year has the most rainfall in Yunnan and Kunming since the beginning of meteorological records? Which place in Yunnan has the highest daily rainfall and on which day does it occur? On which day does Kunming have the highest daily rainfall. The year with the most annual precipitation in Yunnan Province since meteorological records began was 2001. The average precipitation in the province was 1,258mm, 172.0mm more than normal. The year with the most precipitation in Kunming was 1999, with an annual precipitation of 1,450mm, which was 172.0mm more than normal. The annual increase is 471mm, more than 2.5 times that of 2009. The highest daily precipitation in Yunnan is Jiangcheng County, with a 24-hour precipitation of 250.1mm on June 2, 1987. The maximum daily precipitation in Kunming occurred on June 7, 1986, with a 24-hour precipitation of 165.4mm.