sunshine duration

Analysis of Tobacco Leaves Quality for Different Sunshine Duration in Honghe, Yunnan Province

红河州中低海拔日照时数对烟叶品质的影响

Moreover, sunshine duration, cloud cover and some special weather systems have important influences on the rates.

日照时数、云量和特殊天气过程（如冷空气活动、沙尘天气和降水等）对大气加热（冷却）率有很大影响。

For measuring sunshine duration, it is need to determine whether the ray is direct light and whether its irradiance is more than or equal to a defined threshold.

测量日照时数需判断光照是否直射光及其强度是否超过规定值。

At the same time, will express sunshine time length of the sunshine duration and can reflect the building toward of the sunlight space as evaluation indexes.

同时，将可以表达日照时间长度的日照时数以及可以反映建筑朝向、布局的日照间距作为分析评价指标。

The trends of air temperature, precipitation and sunshine duration changes exhibited spatial variations over the research regions.

研究区气温、降水量、日照时数的变化趋势在空间分布上存在着一定的区域差异。

The sunshine duration was the leading climatic factor affected the fat content.

日照时数为影响脂肪含量的主导气象因子。

Time is* the determination of sunshine duration on different hill slopes

任一坡面日照时间的确定

Penman formula was used to calculate the evapotranspiration in the upper valley of the Huanghe river since 1980.The variation tendency of some climatic factors, such as evapotranspiration, sunshine duration, air temperature, air saturation deficit and etc, were analysed.

利用彭曼公式计算80年代以来黄河上游流域蒸散量，分析了该地区蒸散量、日照时数、气温、空气饱和差等气候因子的变化趋势，并着重研究了诸因子对蒸散量的影响。

The sunshine duration is an element of surface meteorological observation.

日照时数是地面气象观测的要素之一。

A Calculation of Sunshine Duration at the Solar Energy Power Station in Tarim Basin

太阳能电站日照时数推算

The system configuration is based on sunshine duration in Beijing area.

系统配置以北京地区日照时数设计；

The changing environment around the meteorological observing station and human activities also influenced the change of temperature and sunshine duration.

气象观测场周边环境的改变和人类活动对增温趋势和日照时数的减少有一定的影响。

Spacial distribution field of sunshine duration and global radiation in China

我国日照时数和总辐射的空间分布场

In the last 40 years, the monthly mean sunshine duration has reduced in summer of East China.

我国东部地区近40年来夏季月平均日照时数在减少。

This device can determine the existence of shadowiness on bill-slopes during sunrise or sunset or noon-time so as to assure the sunshine duration on hill-slopes in different conditions.

这个方法通过对日出、日落和中午时坡面是否受遮蔽进行判别，从而确定了不同情况下的坡面的日照时间。

Change trends of sunshine duration over the 50 Years from 1959 to 2008 in Shanxi province, China

山西省近50年日照时数变化趋势分析

Analysis on Climate Change Characteristics of Sunshine Duration and Its Cause in Xiamen City

厦门市日照气候变化特征及成因分析

Furthermore, the month's total bright sunshine duration of 125.1 hours was the lowest on record.

七月的总日照量只有125.1小时，是同期最低纪录。

Temporal and spatial distribution characteristics of sunshine duration based on GIS in mountainous areas

基于GIS的山地实照时数的时空分布特征