期刊文献+
共找到73篇文章
< 1 2 4 >
每页显示 20 50 100
年度化 个性化 市场化——关于《上海年鉴》的框架设计
1
作者 姚金祥 《年鉴信息与研究》 2003年第6期35-38,共4页
一文密切结合《上海年鉴》从创刊号1996年卷至2003年卷的编纂工作实际,较为详细地介绍了《上海年鉴》坚持不断创新,在框架设计体现年度化、个性化和市场化方面所进行的探索。
关键词 框架设计 总体布局 年鉴编纂 《上海年鉴》 市场经济 年度化 个性 市场
下载PDF
关于公布1995、1996年度全国化工企业管理优秀论文评选结果的通知
2
《化工管理》 1997年第5期4-5,共2页
经各地认真推荐,中国化工企业管理协会共收集1995—1996年度企业管理论文89篇,由协会组织评委认真评审,共评出1995、1996年度化工企业管理优秀论文44篇,其中一等奖1篇;二等奖10篇;三等奖33篇,现予公布(名单附后)。获奖论文作者由协会颁... 经各地认真推荐,中国化工企业管理协会共收集1995—1996年度企业管理论文89篇,由协会组织评委认真评审,共评出1995、1996年度化工企业管理优秀论文44篇,其中一等奖1篇;二等奖10篇;三等奖33篇,现予公布(名单附后)。获奖论文作者由协会颁发证书,并给予适当物质鼓励。 根据规定,以后全国化工企业管理优秀论文评选,每两年进行一次,届时另发通知。望各地化工企业管理部门和企协继续做好工作,开展好论文评审活动。 展开更多
关键词 工企业管理 优秀论文 年度化 通知 有限责任公司 盘锦 中国工企业 论文题 论文评审 集团
下载PDF
“一体化考核法”获化工部一等奖
3
作者 李洲 《化工管理》 1996年第4期27-27,共1页
被评为“山西省现代化管理成果一等奖”的“全方位管理一体化考核法”在1995年度化工部第三批化工企业管理现代化优秀成果评审中,又被评为“管理现代化优秀成果”一等奖。
关键词 考核法 “一体 工部 工企业管理 优秀成果 全方位管理 年度化 管理现代 工行业 现代管理
下载PDF
新型城镇化背景下新型职业农民培育机制研究 被引量:6
4
作者 贺文华 《当代农村财经》 2016年第10期2-8,共7页
农村劳动力转移推动城镇化发展,城镇化发展加速农民群体的市民化和职业化分化。农村劳动力转移引发农村土地抛荒,农村土地抛荒为加快土地流转扩大经营规模发展现代农业提供契机,现代农业发展需要培育从事现代农业生产经营的主体。在新... 农村劳动力转移推动城镇化发展,城镇化发展加速农民群体的市民化和职业化分化。农村劳动力转移引发农村土地抛荒,农村土地抛荒为加快土地流转扩大经营规模发展现代农业提供契机,现代农业发展需要培育从事现代农业生产经营的主体。在新型城镇化背景下,培育新型职业农民是发展现代农业,实现新型城镇化、农业现代化和农民职业化协同发展的关键,也是实现城乡统筹发展的重要手段。因而需甄别新型职业农民特征,拓宽筹资渠道,创新培育机制,实施惠"农"政策,加快新型职业农民培育进程。 展开更多
关键词 新型城镇 新型职业农民 农业现代 筹资渠道 培育机制 *湖南省教育科学“十二五”规划2015年度-般资助课题“新型城镇背景下职业农民培育机制研究”(课题批准号:XJK015BZY003)的研究成果.
下载PDF
地面辐射采暖的热经济学分析 被引量:1
5
作者 郭晓坤 傅秦生 +2 位作者 雷军拓 尹建国 冯霄 《华北电力大学学报(自然科学版)》 CAS 北大核心 2007年第2期58-60,共3页
利用年度化费用的方法对地面辐射采暖进行了热经济分析,研究发现,存在最佳的采暖管间距,使得采暖的年度化费用达到极小值,最佳管间距根据管材费用,供水平均温度和燃料的火用单价确定。与散热器采暖比较,地面辐射采暖节约能耗费用大约50... 利用年度化费用的方法对地面辐射采暖进行了热经济分析,研究发现,存在最佳的采暖管间距,使得采暖的年度化费用达到极小值,最佳管间距根据管材费用,供水平均温度和燃料的火用单价确定。与散热器采暖比较,地面辐射采暖节约能耗费用大约50%。地面辐射采暖的最小年度化费用比散热器采暖的年度化费用减少10%左右,是一种值得推广的经济节能型供暖方式。 展开更多
关键词 辐射采暖 年度化费用 热经济
下载PDF
江水源热泵区域供能系统成本分析
6
作者 王本栋 张华玲 刘洪磊 《制冷与空调(四川)》 2016年第6期705-711,共7页
目前对区域供能的研究基本上是着眼于建筑能量消耗的多少而忽略了所消耗能源的品质,实际建筑的耗能与能量的品质关系密切,基于热力学第二定律的分析方法能更好地反映区域系统的耗能状况。在对分析和经济学研究的基础上,利用成本... 目前对区域供能的研究基本上是着眼于建筑能量消耗的多少而忽略了所消耗能源的品质,实际建筑的耗能与能量的品质关系密切,基于热力学第二定律的分析方法能更好地反映区域系统的耗能状况。在对分析和经济学研究的基础上,利用成本分析方法,建立江水源热泵区域功能系统成本分析模型。以实际的区域供能项目为背景,对江水源热泵热泵区域供能系统和常规水冷机组加锅炉系统进行成本对比分析,对江水源热泵区域供能系统的应用起到了指导意义。 展开更多
关键词 江水源热泵 常规空调系统 年度化分析 成本
下载PDF
改革是搞好国有企业的根本出路
7
作者 董兆清 《化工管理》 1997年第7期10-11,共2页
江泽民总书记强调指出,搞好国有企业,根本出路在于改革。我们山东成山橡胶集团近年来的迅速崛起,就是及时抓住了改革的良机,使企业得到了较好的发展。1996年,在资金异常紧张、原材料价格居高不下。
关键词 根本出路 国有企业 全钢子午胎 斜交轮胎 年度化 山东成山橡胶集团 无内胎 金异常 轮胎工业 列子
下载PDF
HD—系列废纸脱墨剂
8
《造纸信息》 1997年第5期20-21,共2页
HD—系列废纸脱墨剂是83年度化工部造纸化学品技术开发中心(杭州市化工研究所)定点研究项目。86年成功开发了HD—6洗涤法专用脱墨剂,由杭州杰利精细化工有限公司(原杭州化工研究所塘栖联营厂)定点生产。HD系列脱墨剂87年获浙江省科技进... HD—系列废纸脱墨剂是83年度化工部造纸化学品技术开发中心(杭州市化工研究所)定点研究项目。86年成功开发了HD—6洗涤法专用脱墨剂,由杭州杰利精细化工有限公司(原杭州化工研究所塘栖联营厂)定点生产。HD系列脱墨剂87年获浙江省科技进步奖。 展开更多
关键词 废纸脱墨剂 造纸学品 定点研究 技术开发中心 精细 科技进步奖 用户服务 实行技术服务 洗涤法 年度化
下载PDF
Ecological Responses to Holocene Millennial-Scale Climate Change at High Altitudes of East and Central Asia: A Case Study of Picea/Abies Pollen Changes in Lacustrine Sediments 被引量:2
9
作者 LI Yu ZHANG Cheng-qi ZHOU Xue-hua 《Journal of Mountain Science》 SCIE CSCD 2014年第3期674-687,共14页
Ecosystem response to climate change in high-altitude regions is a focus on global change research. Picea/Abies forests are widely distributed at high altitudes of East and Central Asia, and their distribution changes... Ecosystem response to climate change in high-altitude regions is a focus on global change research. Picea/Abies forests are widely distributed at high altitudes of East and Central Asia, and their distribution changes are sensitive to climate change. Humidity is an important climatic factor that affects high-altitude ecosystems; however, the relationship between distribution changes of Picea/Abies forests and millennial-scale variability of humidity is still not dear. Palynological records can provide insights into millennial-scale paleovegetation changes, which have been successfully used to reconstruct past climate change in East and Central Asia. In this study, we synthesized 24 Picea/Abies pollen and humidity/moisture changes based upon Holocene lake records in East and Central Asia in order to explore the response of high-latitude ecosystem to millennial-scale climate change. The changing pattern of Holocene lacustrine Picea/Abies pollen in arid Central Asia differs from that of monsoonal East Asia, which can be due to different millennial-scale climate change patterns between monsoonal and arid Central Asia. Then, the relationship between changes in Picea/Abies pollen and humidity/moisture conditions was examined based on a comparison of pollen and humidity/moisture records. The results indicate that millennial-scale Picea/Abies distribution changes aremainly controlled by moisture variability at high altitudes, while the temperature effect plays a minor role in Picea/Abies distribution changes. Moreover, this research proves that lacustrine Picea/Abies pollen can be used as an indicator of millennial-scale humidity/moisture evolution at high altitudes in East and Central Asia. 展开更多
关键词 Lake sediments Palynological records High-altitude regions Picea/Abies Asian summermonsoon MILLENNIAL-SCALE Climate change
下载PDF
A Simultaneous Optimization Method for the Structure and Compo-sition Differences of a Mass Exchange Network 被引量:3
10
作者 陈理 高志辉 +1 位作者 都健 姚平经 《Chinese Journal of Chemical Engineering》 SCIE EI CAS CSCD 2007年第2期254-261,共8页
This article presents a new method to calculate the composition differences (e) for tar g.etin.g the minimum total annualized cost (TAC) of a mass exchange network (MEN),which is based on the combination of comp... This article presents a new method to calculate the composition differences (e) for tar g.etin.g the minimum total annualized cost (TAC) of a mass exchange network (MEN),which is based on the combination of composition interval diagram (CID) with mathematical programming.The total cost target consists of the capital cost of the process units and the operating cost for mass separating agents (MS.As). The value of total cost varies considerablv with the composition differences, so the values of e should be optimized in order to obtain minimum TAC of a MEN. This articleconsiders ε as a set of unequal variables for each equilibrium equation of a rich-lean stream pair, employing them to build the CID and mathematical model, which optimizes the structure and composition differences simultaneously. Two examples are applied to illustrate the proposed method and the results demonstrate that the approach introduced by this article is simpler and more convenient than the methods in previous literatures. 展开更多
关键词 mass exchange network optimal composition difference total annualized cost
下载PDF
Contrasting the Indian and western North Pacific summer monsoons in terms of their intensity of interannual variability and biennial relationship with ENSO 被引量:3
11
作者 CHEN Baiyang WANG Lei WU Minmin 《Atmospheric and Oceanic Science Letters》 CSCD 2020年第5期462-469,共8页
The intensity of interannual variability(IIV)of the monsoon and monsoon–ENSO biennial relationship(MEBR)were examined and compared for both the Indian summer monsoon(ISM)and western North Pacific summer monsoon(WNPSM... The intensity of interannual variability(IIV)of the monsoon and monsoon–ENSO biennial relationship(MEBR)were examined and compared for both the Indian summer monsoon(ISM)and western North Pacific summer monsoon(WNPSM)during 1958–2018.Covariability of the IIV and MEBR were identified for the two monsoons.When the MEBR was strong(weak),the IIV of the monsoon was observed to be large(small).This rule applied to both the ISM and WNPSM.Out-ofphase relationships were found between the ISM and the WNPSM.When the IIV and MEBR of the ISM were strong(weak),those of the WNPSM tended to be weak(strong).During the period with a stronger(weaker)ENSO–Atlantic coupling after(before)the mid-1980 s,the IIV and MEBR of the WNPSM(ISM)were observed to be stronger.The increasing influences from the tropical Atlantic sea surface temperature(SST)may trigger the observed seesaw pattern of the ISM and WNPSM in terms of the IIV and MEBR multidecadal variability.The results imply that tropical Atlantic SST may need to be given more attention and consideration when predicting future monsoon variability of the ISM and WNPSM. 展开更多
关键词 Indian summer monsoon western North Pacific summer monsoon ENSO intensity of interannual variability monsoon–ENSO biennial relationship
下载PDF
Natural history of heartburn:A 10-year population-based study 被引量:2
12
作者 Linda Bjork Olafsdottir Hallgrimur Gudjonsson +1 位作者 Heidur Hrund Jonsdottir Bjarni Thjodleifsson 《World Journal of Gastroenterology》 SCIE CAS CSCD 2011年第5期639-645,共7页
AIM: To study the natural history and prevalence of heartburn at a 10-year interval, and to study the effect of heartburn on various symptoms and activities. METHODS: A population-based postal study was carried out.... AIM: To study the natural history and prevalence of heartburn at a 10-year interval, and to study the effect of heartburn on various symptoms and activities. METHODS: A population-based postal study was carried out. Questionnaires were mailed to the same age- and gender-stratified random sample of the Icelandic population (aged 18-75 years) in 1996 and again in 2006. Subjects were classified with heartburn if they reported heartburn in the preceding year and/or week, based on the definition of heartburn. RESULTS: Heartburn in the preceding year was reported in 42.8% (1996) and 44.2% (2006) of subjects, with a strong relationship between those who experienced heartburn in both years. Heartburn in the precedingweek was diagnosed in 20.8%. There was a significant relationship between heartburn, dyspepsia and irritable bowel syndrome. IndMduals with a body mass index (BMI) below or higher than normal weight were more likely to have heartburn. Heartburn caused by food or beverages was reported very often by 20.0% of subjects. CONCLUSION: Heartburn is a common and chronic condition. Subjects with a BMI below or higher than normal weight are more likely to experience heartburn. Heartburn has a great impact on daily activities, sleep and quality of life. 展开更多
关键词 HEARTBURN FOLLOW-UP Questionnaire study EPIDEMIOLOGY
下载PDF
Comparison between the interannual and decadal components of the Silk Road pattern 被引量:2
13
作者 HONG Xiao-Wei XUE Shu-Hang +1 位作者 LU Ri-Yu LIU Yu-Yun 《Atmospheric and Oceanic Science Letters》 CSCD 2018年第3期270-274,共5页
The Silk Road pattern(SRP), which is a teleconnection pattern along the Asian upper-tropospheric westerly jet in summer, exhibits both interannual and decadal variabilities. Through the nineyear Gaussian filtering m... The Silk Road pattern(SRP), which is a teleconnection pattern along the Asian upper-tropospheric westerly jet in summer, exhibits both interannual and decadal variabilities. Through the nineyear Gaussian filtering method and regression analyses, this study compares the interannual and decadal components of the SRP. The results indicate that the interannual SRP corresponds to a well-organized wave train of alternate cyclonic and anticyclonic anomalies across the Eurasian continent along the Asian westerly jet, resulting in a similar wave-like pattern of cold and warm surface temperature anomalies. This pattern of temperature anomalies differs from that associated with the original SRP, which is characterized by warmer or cooler temperatures mainly over Europe–West Asia and Northeast Asia, depending on the phase of the SRP. On the other hand, the decadal SRP shows a similar pattern to the interannual one from Europe to Central Asia, but the meridional wind anomalies tend to be weak over East Asia. These circulation anomalies are responsible for the significant temperature anomalies over Europe–West Asia and Northeast Asia but weak anomalies between these two domains. 展开更多
关键词 Silk Road pattern interannual variability decadal variation TEMPERATURE
下载PDF
Annual variation in Calanus sinicus abundance and population structure in the northern boundary area of the Yellow Sea Cold Water Mass 被引量:2
14
作者 尹洁慧 张光涛 +2 位作者 赵增霞 王世伟 万艾勇 《Chinese Journal of Oceanology and Limnology》 SCIE CAS CSCD 2013年第6期1284-1294,共11页
The Yellow Sea Cold Water Mass (YSCWM) was suggested as an over-summering site of the dominant copepod species Calanus sinicus in coastal Chinese seas. Population abundance and structure were investigated by monthly... The Yellow Sea Cold Water Mass (YSCWM) was suggested as an over-summering site of the dominant copepod species Calanus sinicus in coastal Chinese seas. Population abundance and structure were investigated by monthly sampling along three transects across the northern boundary of the YSCWM during 2009-2010. Results show that thermal stratification existed from June to October and that the vertical thermal difference increased with depth. Generally, total abundance was lowest in October and highest in June, and the female/male sex ratio was highest in February and lowest in August. Evident spatial differences in abundance were observed during the existence of the YSCWM. In June, total abundance averaged 158.8 ind/m~ at well-stratified stations, and 532.1 ind/m3 at other stations. Similarly, high abundances of 322.0 and 324.4 ind/m3 were recorded from July to August inside the YSCWM, while the abundance decreased from 50.4 to 1.9 ind/m3 outside the water mass. C. sinicus distribution tended to even out over the study area in September when the YSCWM disappeared. We believe that the YSCWM may retard population recruitment in spring and preserve abundant cohorts in summer. The summer population was transported to neritic waters in autumn. In addition to low temperatures, stable vertical structure was also an essential condition for preservation of the summer population. C. sinicus can survive the summer in marginal areas in high abundance, but the population structure is completely different in terms of C5 proportion and sex ratio. 展开更多
关键词 Calanus sinicus Yellow Sea Cold Water Mass (YSCWM) over-summer strategy boundary area thermal stratification
下载PDF
Effects of air-sea coupling on the eastward propagating boreal winter intraseasonal oscillation over the tropical Indian Ocean 被引量:1
15
作者 LI Chun-Hui LIN Ai-Lan Tim Ll 《Atmospheric and Oceanic Science Letters》 CSCD 2017年第1期51-57,共7页
The effects of air-sea coupling over the tropical Indian Ocean(TIO) on the eastward propagating boreal winter intraseasonal oscillation(MJO) are investigated by comparing a fully coupled and a partially decoupled ... The effects of air-sea coupling over the tropical Indian Ocean(TIO) on the eastward propagating boreal winter intraseasonal oscillation(MJO) are investigated by comparing a fully coupled and a partially decoupled Indian Ocean experiment using the SINTEX-F coupled model.Air-sea coupling over the TIO significantly enhances the intensity of the eastward propagations of the MJO along the5°-10°S zonal areas.The zonal asymmetry of the SST anomaly(SSTA) is responsible for the enhanced eastward propagation.A positive SSTA appears to the east of the MJO convection,which results in the boundary layer moisture convergence and positively feeds back to the MJO convection.In addition,the air-sea interaction effect on the eastward propagation of the MJO is related to the interannual variations of the TIO.Air-sea coupling enhances(reduces) the eastward-propagating spectrum during the negative Indian Ocean dipole mode and positive Indian Ocean basin mode.Such phase dependence is attributed to the role of the background mean westerly in affecting the wind-evaporation-SST feedback.Air-sea coupling(decoupling) enhances(reduces) the zonal asymmetry of the low-level specific humidity,and thus the eastward propagation spectrum of the MJO. 展开更多
关键词 Air-sea coupling boreal winter intraseasonal oscillations tropical Indian Ocean interannual variation
下载PDF
Variability of Tropical Cyclone in High Frequent Occurrence Regions over the Western North Pacific 被引量:1
16
作者 YANG Yuxing HUANG Fei WANG Faming 《Journal of Ocean University of China》 SCIE CAS 2014年第3期347-355,共9页
In this study, three high frequent occurrence regions of tropical cyclones(TCs), i.e., the northern South China Sea(the region S), the south Philippine Sea(the region P) and the region east of Taiwan Island(the region... In this study, three high frequent occurrence regions of tropical cyclones(TCs), i.e., the northern South China Sea(the region S), the south Philippine Sea(the region P) and the region east of Taiwan Island(the region E), are defined with frequency of TC's occurrence at each grid for a 45-year period(1965–2009), where the frequency of occurrence(FO) of TCs is triple the mean value of the whole western North Pacific. Over the region S, there are decreasing trends in the FO of TCs, the number of TCs' tracks going though this region and the number of TCs' genesis in this region. Over the region P, the FO and tracks demonstrate decadal variation with periods of 10–12 year, while over the region E, a significant 4–5 years' oscillation appears in both FO and tracks. It is demonstrated that the differences of TCs' variation in these three different regions are mainly caused by the variation of the Western Pacific Subtropical High(WPSH) at different time scales. The westward shift of WPSH is responsible for the northwesterly anomaly over the region S which inhibits westward TC movement into the region S. On the decadal timescale, the WPSH stretches northwestward because of the anomalous anticyclone over the northwestern part of the region P, and steers more TCs reaching the region P in the greater FO years of the region P. The retreating of the WPSH on the interannual time scale is the main reason for the FO's oscillation over the region E. 展开更多
关键词 high frequent occurrence regions frequency of tropical cyclone's occurrence western Pacific subtropical high
下载PDF
TREND OF PRECIPITATION VARIATION IN HUBEI PROVINCE SINCE THE 1960S 被引量:3
17
作者 CHENZheng-hong QINJun 《Chinese Geographical Science》 SCIE CSCD 2003年第4期322-327,共6页
Through linear regression analysis to the trend of annual,seasonal and monthly precipitation of 72 meteorological stations in Hubei Province from 1961 to 1995,it is revealed that: 1) annual precipitation was increasin... Through linear regression analysis to the trend of annual,seasonal and monthly precipitation of 72 meteorological stations in Hubei Province from 1961 to 1995,it is revealed that: 1) annual precipitation was increasing by 61.0mm/10a in the eastern part of Hubei (112°E as a dividing line) and decreasing by 34.9mm/10a in the western part; 2) precipitation in winter and summer (January,February,March,June and July) was increasing in almost whole province which usually with non-uniformity of precipitation distribution from the south to the north. The precipitation in spring,autumn and winter (April,September,November and December) was decreasing in most of the areas which usually with non-uniformity of precipitation distribution from the east to the west. March and December were transition periods between two spatial distribution patterns mentioned above; 3) the eastern part of Hubei has beome one of precipitation increasing centers in China. The results was consistent with the trend that more frequent flood and drought events happened in Hubei Province which are more different in spatial and temporal scales. 展开更多
关键词 bias of precipitation temporal and spatial differences Hubei province
下载PDF
Climate modulation on sea surface height in China seas 被引量:1
18
作者 张晓爽 王喜冬 +6 位作者 曹英志 张连新 邵彩霞 孙春健 吴新荣 付红丽 宣莉莉 《Chinese Journal of Oceanology and Limnology》 SCIE CAS CSCD 2015年第5期1245-1255,共11页
The climate modulation on the sea surface height (SSH) in China seas is investigated using a China Ocean Reanalysis (CORA) dataset from 1958-2008. The dataset is constructed by assimilating the temperature/salinit... The climate modulation on the sea surface height (SSH) in China seas is investigated using a China Ocean Reanalysis (CORA) dataset from 1958-2008. The dataset is constructed by assimilating the temperature/salinity profiles derived from the satellite altimetry data and historical observational temperature/salinity profiles. Based on the Empirical Orthogonal Function (EOF), the CORA sea surface height anomaly (SSHa) is decomposed, and the interannual and decadal variability of the first three leading modes are analyzed. On the interannual timescale, the first principal component (PC1) is significant positively correlated with the E1 Nifio/Southern Oscillation (ENSO). On the decadal timescale, North Pacific Gyre Oscillation (NPGO) has significant negative correlation with PC 1 whereas Pacific Decadal Oscillation (PDO) is in phase with PC3. Analysis shows that the decadal variability of SSH is mainly modulated by the wind stress curl variability related to the NPGO and PDO. In addition, the effect of net heat flux associated to the NPGO and PDO on SSH is also investigated, with net heat flux variability in the Luzon strait and tropic Pacific found to influence the decadal variability of SSH. 展开更多
关键词 sea surface height E1 Nifio/Southem Oscillation North Pacific Gyre Oscillation Pacific Decadal Oscillation
下载PDF
Global Distribution of Thermosteric Contribution to Sea Level Rising Trend 被引量:1
19
作者 ZUO Juncheng DU Ling +1 位作者 ZHANG Jianli CHEN Meixiang 《Journal of Ocean University of China》 SCIE CAS 2010年第3期199-209,共11页
The sea level derived from TOPEX/Poseidon (T/P) altimetry data shows prominent long term trend and inter-annual variability. The global mean sea level rising rate during 1993-2003 was 2.9mm a^-1. The T/P sea level t... The sea level derived from TOPEX/Poseidon (T/P) altimetry data shows prominent long term trend and inter-annual variability. The global mean sea level rising rate during 1993-2003 was 2.9mm a^-1. The T/P sea level trend maps the geographical variability. In the Northern Hemisphere (15°-64°N), the sea level rise is very fast at the mid-latitude (20°-40°N) but much slower at the high-latitude, for example, only 0.5 mm a^-1 in the latitude band 40°-50°N. In the Southern Hemisphere, the sea level shows high rising rate both in mid-latitude and high-latitude areas, for example, 5.1 mm a^-1 in the band 40°- 50°S. The global thermosteric sea level (TSL) derived from Ishii temperature data was rising during 1993-2003 at a rate of 1.2 mm a^-1 and accounted for more than 40% of the global T/P sea level rise. The contributions of the TSL distribution are not spatially uniform; for instance, the percentage is 67% for the Northern Hemisphere and only 29% for the Southern Hemisphere (15°-64°S) and the maximum thermosteric contribution appears in the Pacific Ocean, which contributes more than 60% of the global TSL. The sea level change trend in tropical ocean is mainly caused by the thermosteric effect, which is different from the case of seasonal variability in this area. The TSL variability dominates the T/P sea level rise in the North Atlantic, but it is small in other areas, and shows negative trend at the high-latitude area (40°-60°N, and 50°-60°S). The global TSL during 1945-2003 showed obvious rising trend with the rate of about 0.3 mm a-l and striking inter-annual and decadal variability with period of 20 years. In the past 60 years, the Atlantic TSL was rising continuously and remarkably, contributing 38% to the global TSL rising. The TSL in the Pacific and Indian Ocean rose with significant in- ter-annual and decadal variability. The first EOF mode of the global TSL from Ishii temperature data was the ENSO mode in which the time series of the first mode showed steady rising trend. Among the three oceans, the first mode of the Pacific TSL presented the ENSO mode; there was relatively steady rising trend in the Atlantic Ocean, and no dominant mode in the Indian Ocean. 展开更多
关键词 thermosteric effect sea level trend T/P altimeter spatial distribution
下载PDF
Drought Response to Air Temperature Change over China on the Centennial Scale 被引量:3
20
作者 CHEN Huo-Po SUN Jian-Qi 《Atmospheric and Oceanic Science Letters》 CSCD 2015年第3期113-119,共7页
Climate data from the Climatic Research Unit (CRU) for the period 1901-2013 are used to investigate the drought response to air temperature change over China on the centennial scale. Drought is observed to have incr... Climate data from the Climatic Research Unit (CRU) for the period 1901-2013 are used to investigate the drought response to air temperature change over China on the centennial scale. Drought is observed to have increased evidently across China, except for some regions in eastern China. This increase is much stronger in northern China compared to southern China, especially in Northwest and North China. These change characteris- tics of drought are closely associated with air temperature change, with the severe droughts in the major drought episodes of the last century generally coinciding with higher temperatures. The significantly increasing trend of drought in China based on observations only appears when considering the effects of air temperature change, which can explain -49% of droughts in observations and 30%-65% of droughts in Coupled Model Intereomparison Project Phase 5 (CMIP5) model simulations. Furthermore, the response of drought to air temperature change generally increases as the drought time scale increases. Furthermore, drought shows relatively high sensitivity in spring and early summer in China on the centennial scale. 展开更多
关键词 DROUGHT air temperature RESPONSE centennial scale China
下载PDF
上一页 1 2 4 下一页 到第
使用帮助 返回顶部