| 1971—2017年青海省绝对湿度时空变化特征 |
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| 引用本文： | 晁红艳.,袁志强.,祁栋林,张娟.1971—2017年青海省绝对湿度时空变化特征[J].新疆气象,2020,14(3):95-102. |
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| 作者姓名： | 晁红艳. 袁志强. 祁栋林 张娟 |
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| 作者单位： | 青海省海北藏族自治州气象局,青海省海北藏族自治州气象局,青海省气象科学研究所,青海省气象科学研究所 |
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| 基金项目： | 国家自然科学基金“三江源典型湿地水平衡模型及生态需水研究”(41065007)；青海省科技厅重点研发与转化项目“青海雪灾精细化监测预警及应急联动机制的建立”(2017-SF-131)。第一 |
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| 摘 要： | 为探究青海省绝对湿度变化趋势及分布规律，基于青海省43个地面气象观测站1971—2017年常规观测资料，运用绝对湿度计算公式及线性趋势等方法，分析青海省及4个生态功能区绝对湿度变化趋势，并进一步分析绝对湿度时空变化特征。结果表明：近47a来，全省及4个生态功能区年及逐月绝对湿度变化特征明显；季节、月际变化特征显著；绝对湿度具有较好的经度地带性和海拔地带性；空间分布表现为东高西低的分布格局，变化趋势存在较大的空间差异性。研究绝对湿度的变化规律对青藏高原农作物种植以及气候预报等方面意义重大。
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| 关 键 词： | 绝对湿度 时空 变化趋势 |
| 收稿时间： | 2019/5/30 0:00:00 |
| 修稿时间： | 2019/10/23 0:00:00 |
Spatial and temporal variation characteristics of absolute humidity in Qinghai province from 1971 to 2017 |
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| chaohongyan,yuanzhiqiang,qidonglin and zhangjuan.Spatial and temporal variation characteristics of absolute humidity in Qinghai province from 1971 to 2017[J].Bimonthly of Xinjiang Meteorology,2020,14(3):95-102. |
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| Authors: | chaohongyan yuanzhiqiang qidonglin and zhangjuan |
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| Abstract: | An inquiry into Change Trend and distribution law of absolute humidity, based on 43 surface meteorological stations of Qinghai province conventional observation data from 1971 to 2017.Analysis on Change Trend of Qinghai and the four ecological function region by the method of absolute humidity calculation formula and linear trend, and the Spatial and temporal variation characteristics of absolute humidity. The results showed that the annual and monthly absolute humidity changes of the Qinghai province and the four ecological functional region were obvious in the past 47 years; the seasonal and monthly variation were significant; Absolute humidity had good longitude zonal and altitude zonal; Spatial distribution is high east and low west, there is a large spatial difference in the Change Trend. Studying the variation law of absolute humidity is a great significance to crop cultivation and climate prediction in the Qinghai-Tibet Plateau. |
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| Keywords: | absolute humidity Spatial and temporal Change Trend |
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