搜索结果: 1-15 共查到“知识库 大气科学 2000”相关记录49条 . 查询时间(0.239 秒)
GLACIER ICE MASS CHANGES IN CENTRAL HIMALAYAS DURING 2000-2014 USING TanDEM- X DATA
Glacier elevation change TanDEM-X SRTM geodetic mass balance Central Indian Himalaya
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2019/2/27
The Himalayas have been widely accepted as one of the most sensitive indicators of climate change. However, the rugged terrains of the Indian Himalayas render it impossible to carry out ground based s...
SPATIO-TEMPORAL CHANGES OF NET PRIMARY PRODUCTIVITY AND ITS RESPONSE TO PHENOLOGY IN NORTHEAST CHINA DURING 2000–2015
Northeast China NDVI Net Primary Productivity Phenology Spatio-temporal Changes
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2018/5/15
The relationship between net primary productivity (NPP) and phenological changes is of great significance to the study of regional ecosystem processes. In this study, firstly, NPP was estimated with t...
根据近年国内外相关研究结果,分析了北半球与中国过去2000 年冷暖变化的阶段性,辨识了百年尺度暖期的起讫年代及其与20 世纪温暖程度的差别。结果表明:(1) 最近新建的多数北半球温度变化序列显示公元1-270 年温暖;271-840 年冷暖相间,但总体偏冷;841-1290年温暖;1291-1910 年寒冷;1911 年以后再次转为温暖;这些冷暖阶段虽分别与Lamb 指出的罗马暖期(约公元前1 世...
Measurements and receptor modeling of volatile organic compounds in Southeastern Mexico City, 2000–2007
volatile organic compounds Southeastern Mexico City 2000–2007
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2010/10/11
Ambient samples of volatile organic compounds (VOCs) were measured between 2000 and 2007 in Southeastern Mexico City, quantifying 13 species (ethane, propane, propylene, butane, acetylene, pentane, he...
Historical (1850–2000) gridded anthropogenic and biomass burning emissions of reactive gases and aerosols: methodology and application
reactive gases and aerosols methodology application
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2010/8/16
We present and discuss a new dataset of gridded emissions covering the historical period (1850–2000) in decadal increments at a horizontal resolution of 0.5° in latitude and longitude. The primary pur...
Sulfur dioxide emissions in China and sulfur trends in East Asia since 2000
Sulfur dioxide China sulfur trends East Asia
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2010/8/16
With the rapid development of the economy, the sulfur dioxide (SO2) emission from China since 2000 is of increasing concern. In this study, we estimate the annual SO2 emission in China after 2000 usin...
Analysis of global and regional CO burdens measured from space between 2000 and 2009 and validated by ground-based solar tracking spectrometers
global and regional CO burdens ground-based solar tracking spectrometers
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2010/8/12
Interannual variations in AIRS and MOPITT retrieved CO burdens are validated, corrected, and compared with CO emissions from wild fires from the Global Fire Emission Dataset (GFED2) inventory. Validat...
Atmospheric oxygen and carbon dioxide observations from two European coastal stations 2000–2005: continental influence, trend changes and APO climatology
Atmospheric oxygen carbon dioxide European coastal APO climatology
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2010/2/21
Seeking for baseline conditions has biased the atmospheric carbon dioxide (CO2) and later on also oxygen (O2) monitoring networks towards remote marine stations, missing part of the variability that i...
Variability of springtime transpacific pollution transport during 2000–2006: the INTEX-B mission in the context of previous years
springtime transpacific pollution INTEX-B mission
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2010/2/21
We analyze the transport of pollution across the Pacific during the NASA INTEX-B (Intercontinental Chemical Transport Experiment Part B) campaign in spring 2006 and examine how this year compares to t...
中国参与长期（2000-2050年）CO2减排的情景选择
CO2减排 情景分析 经济 中国
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2010/2/21
利用国外较为成熟的气候与经济综合评估模型（DICE/RICE），通过调整CO2排放控制率，对我国2000-2050年的若干CO2排放情景进行了设定，在保证大气CO2总量稳定的前提下开展了若干CO2减排方案下我国CO2排放量、经济发展水平和效用水平的影响评估。研究结果表明，若干CO2减排方案都可以使未来200年的全球平均地表温度增量控制在3.2℃的气候安全阈值范围内，都可以有效地保护全球气候安全。当...
Effects of boundary layer particle formation on cloud droplet number and changes in cloud albedo from 1850 to 2000
boundary layer particle formation cloud droplet number cloud albedo
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2010/2/1
We use a global aerosol microphysics model to estimate the effect of particle formation through activation nucleation in the boundary layer (BL) on cloud droplet number concentration (CDNC) on global ...
1971-2000年营口地区大风特征及其变化分析
大风日数 变率 营口地区
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2009/8/28
对1971-2000年营口地区各月大风及大风日数等要素资料的分析表明：1971-2000年营口地区各月最大风速≥6级和≥8级的日数表现为春季＞冬季＞秋季＞夏季，≥6级和≥8级的年大风日数均呈递减趋势，变化速率分别为-27.4 d/10a和-6.7 d/10a；1981-2000年营口地区最大风速≥6级和≥8级的年大风日数变化速率分别为-13.1 d/10a和-6.1 d/10a，反映出1971-2...
2000年4月6日辽宁大风扬沙天气分析
大风扬沙天气 中小尺度天气分析 短期预报方法
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2009/7/2
通过对2000年4月6日辽宁大风扬沙天气的地面、高空天气形势和物理量场的分析 ,试图找出此类天气的预报依据。
2000年朝阳地区干旱灾害及影响分析
干旱灾害 气象要素统计 成因分析
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2009/7/2
分析了 2000年朝阳地区由于降水不足而形成的干旱及其特点、成因并提出抗旱对策。
2000年初两次大雪天气过程分析
大雪过程分析 临近预报方法
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2009/7/2
概述 1999年冬降雪特点和 2000年初两次大雪天气过程 ,从天气学原理出发 ,对局地强烈增温和环流的异常演变过程进行分析 ,以期对临近预报工作起到一定的借鉴作用。