利用塔城地区7个气象观测站1960~2022年逐日气温资料,以日最高气温及其升温幅度为指标,整理出塔城地区近63 a升温日及升温过程数据库,并依据相关标准将其划分为5个等级,分别分析了其频数和强度的变化特征。结果表明,1) 近63a塔城地区升...利用塔城地区7个气象观测站1960~2022年逐日气温资料,以日最高气温及其升温幅度为指标,整理出塔城地区近63 a升温日及升温过程数据库,并依据相关标准将其划分为5个等级,分别分析了其频数和强度的变化特征。结果表明,1) 近63a塔城地区升温日以乌苏最多,和丰最少,1月、12月最多,4月最少,冬季最多,春季最少;年代际分布经历了“升高–降低–降低–升高–降低–降低”的交替演变,其中1960年代为最高值,21世纪初年为最低值;塔城地区及7站升温日频数均呈显著减少趋势。2) 塔城地区升温过程发生频数以托里最多,乌苏最少,5月最多,11月最少,春季最多,冬季最少;年代际分布经历了“降低–升高–升高–降低–降低–降低”的交替演变,其中1980年代为最高值,21世纪初年为最低值;塔城地区最大24 h、48 h、72 h升温幅度大值区主要分布在塔城盆地,塔城地区及7站升温过程频数均呈显著减少趋势。3) 塔城地区I级(弱)升温过程发生频数最多,V级(极强)最少;7站中I级(弱)和IV级(强)升温过程发生频数塔城最多,II级(中等强度)和III级(较强)托里最多,V级(极强)裕民最多;I级(弱)升温过程发生频数7月最多,2月最少,II级(中等强度)5月最多,2月和11月最少,III级(较强)1月最多,6、7、8月未出现,IV级(强)4月最多,1月最少,V级(极强)5月最多,1、2、11、12月均未出现;I级(弱)升温过程发生频数夏季最多,III级(较强)冬季最多,II级(中等强度)、IV级(强)、V级(极强)均以春季最多;I级(弱)升温过程发生频数以20世纪1990年代最多,II级(中等强度)、III级(较强)、IV级(强)均以20世纪1970年代最多,V级(极强)以2000年代最多。Based on daily temperature data from seven meteorological observation stations in the Tacheng area from 1960 to 2022, the database of warming days and warming processes in the past 63 years was sorted out with the daily maximum temperature and its warming range as the index. According to relevant standards, the database was divided into 5 levels, and the variation characteristics of their frequency and intensity were analyzed respectively. The results show that: 1) Over the past 63 years, the Tacheng region has experienced the most warming days in Wusu and the fewest in Hefa. January and December had the highest number of warming days, while April had the least. Winter recorded the most warming days, while spring had the fewest. The decadal distribution exhibited an alternating pattern of “increase-decrease-decrease-increase-decrease-decrease”, with the 1960s representing the highest value and the early 21st century the lowest. Additionally, the frequency of warming days in the Tacheng region and the seven observation stations has shown a significant decreasing trend. 2) In the Tacheng region, the frequency of warming processes is highest in Toli and lowest in Wusu. May sees the most occurrences, while November has the least. Spring experiences the most warming processes, whereas winter has the fewest. The decadal distribution shows an alternating pattern of “decrease-increase-increase-decrease-decrease-decrease”, with the 1980s representing the peak value and the early 21st century the lowest. The maximum warming amplitudes over 24 hours, 48 hours, and 72 hours are mainly concentrated in the Tacheng Basin, and there is a significant decreasing trend in the frequency of warming processes across the Tacheng region and the seven observation stations. 3) In the Tacheng region, the frequency of Level I (weak) warming processes is the highest, while Level V (extreme) processes are the least frequent. Among the seven observation stations, Level I (weak) and Level IV (strong) warming processes occur most frequently in Tacheng, whereas Level II (moderate) and Level III (relatively strong) processes are most common in Toli, and Level V (extreme) processes are most frequent in Yumin. Level I (weak) warming processes occur most frequently in July and least in February. For Level II (moderate), May has the highest frequency, with February and November having the least. Level III (relatively strong) processes are most common in January, while they do not occur in June, July, or August. Level IV (strong) processes are most frequent in April and least in January. Level V (extreme) processes are most common in May, with no occurrences in January, February, November, or December. In terms of seasonal distribution, Level I (weak) warming processes occur most frequently in summer, while Level III (relatively strong) processes are most frequent in winter. Levels II (moderate), IV (strong), and V (extreme) processes are all most common in spring. Regarding decadal distribution, Level I (weak) warming processes peaked in the 1990s, while Level II (moderate), III (relatively strong), and IV (strong) were most frequent in the 1970s. Level V (extreme) processes were most common in the 2000s.展开更多
使用1960~2019年5月塔城7站逐日最低气温资料,从中挑选出符合标准的初终霜冻日,采用线性趋势法、气候趋势法等方法研究了近59年塔城地区霜冻天气的变化特征,结果表明:① 塔城地区霜冻初日最早出现于和丰,最晚出现于沙湾;霜冻终日最早出...使用1960~2019年5月塔城7站逐日最低气温资料,从中挑选出符合标准的初终霜冻日,采用线性趋势法、气候趋势法等方法研究了近59年塔城地区霜冻天气的变化特征,结果表明:① 塔城地区霜冻初日最早出现于和丰,最晚出现于沙湾;霜冻终日最早出现于乌苏、沙湾,最晚出现于和丰;无霜冻期平均日数最多为195天(沙湾),最少为135天(和丰)。② 塔城盆地初霜冻以10月上旬和9月下旬最多,和丰9月下旬最多,乌苏、沙湾10月中旬最多;终霜冻区域分布比较一致,塔城盆地均以4月下旬最多,和丰以5月中旬最多,南部以4月上旬最多;初终霜冻月际分布区域一致性较好,盆地及南部初终霜冻分别以10月和4月最多,和丰9月和5月最多。③ 塔城7站1960年代初霜冻出现时间均偏早,1980年代均偏晚,其余各年代总体以偏晚为主;终霜冻1970年代基本以偏晚为主,1980、1990年代、21世纪初年、2010~2018年除个别站外,其余各站基本以偏早为主;无霜期1980年代、21世纪初年各站均偏多,1970年代以偏少为主,1960年代、1990年代、2010~2018年基本以偏多为主。The daily minimum temperature data from meteorological observatory station in Tacheng region from 1960 to 2019 were used to analyze the frost and the frost-free period index based on the climate tendency rate, absolute change rate and other statistics methods. The results showed as follows. In recent 59 years, the first frost date in the earliest appeared in Hefeng, the latest appeared in Shawan;the last frost date in the earliest appeared in Wusu, Shawan;the latest appeared in Hefeng;the average number of frost-free days is 195 days (in Shawan) and 135 days (in Hefeng). The most first frost in Tacheng basin is in early October and late September, the most in Hefeng is in late September, the most in Wusu and Shawan is in mid-October;Eventually, the last frost regional distribution is relatively consistent, the most in Tacheng basin is in late April, the most in Hefeng is in mid-May, and the most in the south is in early April;the inter-monthly regional distribution of the first frost date and the last frost date is relatively consistent, the most first frost date and the last frost date in basin and south regin is in October and April, the most in Hefeng is in September and May. In 1960, the first frost in Tacheng all performance for advance trend, in 1980, the first frost performance for delay trend;the rest of the period mainly performance for delay trend;in 1970, the last frost date mainly performance for delay trend;in the 1980s, 1990s, early 21st cen-tury, 2010-2018, addition to individual stations, the rest of the stations mainly performance for advance trend;in 1980s and the early 21st century, the frost-free period in all stations performance for increase trend, in 1970s, performance for decrease trend, and in the 1960s, 1990s, 2010-2018 mainly performance for increase trend.展开更多
文摘利用塔城地区7个气象观测站1960~2022年逐日气温资料,以日最高气温及其升温幅度为指标,整理出塔城地区近63 a升温日及升温过程数据库,并依据相关标准将其划分为5个等级,分别分析了其频数和强度的变化特征。结果表明,1) 近63a塔城地区升温日以乌苏最多,和丰最少,1月、12月最多,4月最少,冬季最多,春季最少;年代际分布经历了“升高–降低–降低–升高–降低–降低”的交替演变,其中1960年代为最高值,21世纪初年为最低值;塔城地区及7站升温日频数均呈显著减少趋势。2) 塔城地区升温过程发生频数以托里最多,乌苏最少,5月最多,11月最少,春季最多,冬季最少;年代际分布经历了“降低–升高–升高–降低–降低–降低”的交替演变,其中1980年代为最高值,21世纪初年为最低值;塔城地区最大24 h、48 h、72 h升温幅度大值区主要分布在塔城盆地,塔城地区及7站升温过程频数均呈显著减少趋势。3) 塔城地区I级(弱)升温过程发生频数最多,V级(极强)最少;7站中I级(弱)和IV级(强)升温过程发生频数塔城最多,II级(中等强度)和III级(较强)托里最多,V级(极强)裕民最多;I级(弱)升温过程发生频数7月最多,2月最少,II级(中等强度)5月最多,2月和11月最少,III级(较强)1月最多,6、7、8月未出现,IV级(强)4月最多,1月最少,V级(极强)5月最多,1、2、11、12月均未出现;I级(弱)升温过程发生频数夏季最多,III级(较强)冬季最多,II级(中等强度)、IV级(强)、V级(极强)均以春季最多;I级(弱)升温过程发生频数以20世纪1990年代最多,II级(中等强度)、III级(较强)、IV级(强)均以20世纪1970年代最多,V级(极强)以2000年代最多。Based on daily temperature data from seven meteorological observation stations in the Tacheng area from 1960 to 2022, the database of warming days and warming processes in the past 63 years was sorted out with the daily maximum temperature and its warming range as the index. According to relevant standards, the database was divided into 5 levels, and the variation characteristics of their frequency and intensity were analyzed respectively. The results show that: 1) Over the past 63 years, the Tacheng region has experienced the most warming days in Wusu and the fewest in Hefa. January and December had the highest number of warming days, while April had the least. Winter recorded the most warming days, while spring had the fewest. The decadal distribution exhibited an alternating pattern of “increase-decrease-decrease-increase-decrease-decrease”, with the 1960s representing the highest value and the early 21st century the lowest. Additionally, the frequency of warming days in the Tacheng region and the seven observation stations has shown a significant decreasing trend. 2) In the Tacheng region, the frequency of warming processes is highest in Toli and lowest in Wusu. May sees the most occurrences, while November has the least. Spring experiences the most warming processes, whereas winter has the fewest. The decadal distribution shows an alternating pattern of “decrease-increase-increase-decrease-decrease-decrease”, with the 1980s representing the peak value and the early 21st century the lowest. The maximum warming amplitudes over 24 hours, 48 hours, and 72 hours are mainly concentrated in the Tacheng Basin, and there is a significant decreasing trend in the frequency of warming processes across the Tacheng region and the seven observation stations. 3) In the Tacheng region, the frequency of Level I (weak) warming processes is the highest, while Level V (extreme) processes are the least frequent. Among the seven observation stations, Level I (weak) and Level IV (strong) warming processes occur most frequently in Tacheng, whereas Level II (moderate) and Level III (relatively strong) processes are most common in Toli, and Level V (extreme) processes are most frequent in Yumin. Level I (weak) warming processes occur most frequently in July and least in February. For Level II (moderate), May has the highest frequency, with February and November having the least. Level III (relatively strong) processes are most common in January, while they do not occur in June, July, or August. Level IV (strong) processes are most frequent in April and least in January. Level V (extreme) processes are most common in May, with no occurrences in January, February, November, or December. In terms of seasonal distribution, Level I (weak) warming processes occur most frequently in summer, while Level III (relatively strong) processes are most frequent in winter. Levels II (moderate), IV (strong), and V (extreme) processes are all most common in spring. Regarding decadal distribution, Level I (weak) warming processes peaked in the 1990s, while Level II (moderate), III (relatively strong), and IV (strong) were most frequent in the 1970s. Level V (extreme) processes were most common in the 2000s.
文摘使用1960~2019年5月塔城7站逐日最低气温资料,从中挑选出符合标准的初终霜冻日,采用线性趋势法、气候趋势法等方法研究了近59年塔城地区霜冻天气的变化特征,结果表明:① 塔城地区霜冻初日最早出现于和丰,最晚出现于沙湾;霜冻终日最早出现于乌苏、沙湾,最晚出现于和丰;无霜冻期平均日数最多为195天(沙湾),最少为135天(和丰)。② 塔城盆地初霜冻以10月上旬和9月下旬最多,和丰9月下旬最多,乌苏、沙湾10月中旬最多;终霜冻区域分布比较一致,塔城盆地均以4月下旬最多,和丰以5月中旬最多,南部以4月上旬最多;初终霜冻月际分布区域一致性较好,盆地及南部初终霜冻分别以10月和4月最多,和丰9月和5月最多。③ 塔城7站1960年代初霜冻出现时间均偏早,1980年代均偏晚,其余各年代总体以偏晚为主;终霜冻1970年代基本以偏晚为主,1980、1990年代、21世纪初年、2010~2018年除个别站外,其余各站基本以偏早为主;无霜期1980年代、21世纪初年各站均偏多,1970年代以偏少为主,1960年代、1990年代、2010~2018年基本以偏多为主。The daily minimum temperature data from meteorological observatory station in Tacheng region from 1960 to 2019 were used to analyze the frost and the frost-free period index based on the climate tendency rate, absolute change rate and other statistics methods. The results showed as follows. In recent 59 years, the first frost date in the earliest appeared in Hefeng, the latest appeared in Shawan;the last frost date in the earliest appeared in Wusu, Shawan;the latest appeared in Hefeng;the average number of frost-free days is 195 days (in Shawan) and 135 days (in Hefeng). The most first frost in Tacheng basin is in early October and late September, the most in Hefeng is in late September, the most in Wusu and Shawan is in mid-October;Eventually, the last frost regional distribution is relatively consistent, the most in Tacheng basin is in late April, the most in Hefeng is in mid-May, and the most in the south is in early April;the inter-monthly regional distribution of the first frost date and the last frost date is relatively consistent, the most first frost date and the last frost date in basin and south regin is in October and April, the most in Hefeng is in September and May. In 1960, the first frost in Tacheng all performance for advance trend, in 1980, the first frost performance for delay trend;the rest of the period mainly performance for delay trend;in 1970, the last frost date mainly performance for delay trend;in the 1980s, 1990s, early 21st cen-tury, 2010-2018, addition to individual stations, the rest of the stations mainly performance for advance trend;in 1980s and the early 21st century, the frost-free period in all stations performance for increase trend, in 1970s, performance for decrease trend, and in the 1960s, 1990s, 2010-2018 mainly performance for increase trend.
