年较差

但是，气候构型与现今截然不同，具有气温高、年较差小、降水波动大的特点。

However , the climate composite at that time was different from the present one , and was characterized by higher temperature , small annual range , and big fluctuation in precipitation .

世行项目实施的影响：①夏半年气温降低、冬半年升高、年较差减小；

The impacts of the World Bank Loan Project implementing period on temperature and humidity ; ① the temperature increased in summer half year and decreased in winter half year , and the annual range decreased .

NDVI年较差与春、夏、秋季的平均温度以正相关为主；

The annual NDVI variation was mainly positively related to the temperature in spring , summer and autumn .

5个地理种群的SCP与当地气温年较差呈显著负相关，但与年均温无关。

℃, and the SCP was negatively related to the yearly margin of ambient temperature for the geographical populations , but not to the monthly or yearly temperatures they experienced .

流域尺度上，NDVI年较差、年均温度、月均温度在1982~1999年呈升高趋势，年降水量呈减少趋势；

On basin scale , the annual NDVI variation and the annual and monthly average temperature from 1982 to 1999 increased , while the annual precipitation during this period decreased .

NDVI年较差与年降水、年均温度相关不明显（P>0.05）；7月ND-VI与同期降水、温度相关显著，相关系数分别达0.855、0.943。

The annual NDVI variation had no significant correlation with annual precipitation and average temperature ( P > 0.05 ), but in July , NDVI was significantly correlated with precipitation and temperature , and the correlation coefficient was 0.855 and 0.943 , respectively .

原产地温度年较差越小，引种后保存率越低，受冻程度越大。

Provenances with lower mean annual temperature in their origins had smaller survival rate .

近40年江苏省气温年较差异常的演变及其海气背景场特征

Variation of 1961 - 1998 Annual Temperature Anomaly in Jiangsu and Its Air-Sea Background Features

年较差东部比西部的下降趋势显著。

The decreasing trends of annual temperature range are more obvious in East China than in the West .

随着年较差的增加，单列射线和多列射线高度均减小。

With the increase of annual temperature range , the height of both single and multiserate rays decreased .

增温主要表现在最低气温的增高，年平均最低气温增高1.7℃，年较差变小1.16℃。

The Temperature rise is mainly characterized as 1.7 ℃ increase of the lowest temperature and 1.16 ℃ decrease of annual temperature range .

大气热源的年较差以亚洲季风区最显著，澳大利亚北部次之。

Theannual range in the Asian monsoon area is most prominent in the world , and the second one is in the north to Australia .

而水温偏低，年较差小，是控制研究区天然水中矿物溶解速率和水体生物化学作用的主要因素。

The water temperature is low , the annual range is small , the study area is to control the dissolution rate of natural mineral water and water main biochemical factors .

研究区水温的年较差很小，水温与气温有十分密切的关系，年平均水温均高于年平均气温。

The study area has very small annual range of water temperature , water temperature and the temperature has a very close relationship , the annual average temperature is higher than the annual average temperature .

若尔盖高原内部年平均气温0.6～3.3℃，气温年较差19.1～21.2℃，已不具备多年冻土形成和保存的气候条件。

Field investigation shows no permafrost in the interior of the Zoige Plateau . The mean annual air temperature is 0.6 ~ 3.3 ℃, and the annual range of air temperature is 19.1 ~ 21 2 ℃ .

在自然植被垂直带谱上一般以暗针叶林带的上限代表森林线，它的海拔高度取决于温度及其年较差。

The altitude of the forest line that is generally marked by the upper limit of the dark coniferous forest zone in the vertical zones of natural vegetation is controlled by the temperatures and their annual range .

1976年起季节循环有明显变化，冬季变暖夏季变凉，月平均气温的年较差比前43年减小1.7℃。

Since 1976 strong changes in seasonal cycle have taken place , with winters becoming warmer and summers colder . The annual range of monthly mean temperature in the latest 21 years was 1.7 ℃ less than in the earlier 43 years .

利用1961~2000年的观测资料，分别对中国不同区域的月、季和年平均气温日较差，以及月较差、季较差和年较差的变化趋势进行了分析。

Based on China 's daily temperature data during 1961-2000 , we analysed monthly averaged diurnal temperature range , seasonally averaged diurnal temperature range , yearly averaged diurnal temperature range , monthly temperature range , seasonal temperature range and annual temperature range in different areas of China .

显著表现为气温日较差、年较差大；夏季和白昼太阳辐射强烈，夜间天空长波辐射大；空气干燥，降水稀少；植被稀薄，风疾沙多。

The Significant performance is there is significant difference between diurnal temperature range and annual temperature range . The solar radiation is strong in summer and day-time and radiation of long wave is large in sky at night . The air is dry and the rainfall is rare .