搜索结果: 1-15 共查到“1990s”相关记录45条 . 查询时间(0.062 秒)
印度夏季风(ISM)爆发通常发生于2024年5月末到6月初,标志着印度雨季的来临,具有很强的年际变率。ISM爆发的早晚对印度农业播种时间和夏季气候有重要影响。因此,许多研究者致力于寻找ISM爆发的影响因子,以提升对它的预测。以往的研究主要侧重于揭示影响ISM爆发的热带系统,例如厄尔尼诺-南方涛动、热带季节内振荡等。
“坐地日行八万里”,描绘的是世人周知的我们所处的地球每日相对于地轴的自转。但少有人知道,地球的瞬时自转轴相对于地球本体的位置, 称为地极移动,简称极移,其实也在不停的运动。日月引力造成的海潮和大地变形、洋流、风、大气压变化、陆地水储量变化、冰川消融、地震和洋底压力变化等等都会引起极移。科学研究发现,极移一方面以周年和钱德勒周期跳着“圆舞曲”,一方面也在朝一个方向莲步轻移。一直以来,极移漂移的方向基...
Price Stabilization in the 1990s: A Summary.
Macroeconomic Policy and Unemployment in the 1990s.
POPULATION POLICIES : FORMULATION,IMPLEMENTATION AND PROSPECTS KEY ISSUES IN NIGERIA’S POPULATION POLICY IN THE 1990S
POPULATION POLICIES FORMULATION
2015/7/7
This paper reviews Nigeria's population policy which was adopted during the first quarter of 1988. The policy has been adopted at a time of social and economic stress. The policy document is divided i...
Completing school in Australia:trends in the 1990s
Completing school Australia trends in the 1990s
2015/4/28
To help examine the recent downturn in school completion rates in Australia this report makes use of two sources of data. The first is from the Schools Australia series published by the Australian Bur...
Firm-based training for young Australians:changes from the 1980s to the 1990s
Firm-based training young Australiansthe 1980s to the 1990s
2015/4/28
This report examines changes in the extent, pattern and outcomes of participation in firm-based education and training by young Australians. It compares results for the mid-1990s from the Australian Y...
Is Commercial Real Estate Reliving the 1980s and Early 1990s?
financial risks commercial real estate commercial banks estate securitization
2011/9/11
The article presents an analysis of 2008 economic and financial condition of commercial real estate in the U.S. similar to that in the 1980s and early 1990s. It identifies the similarity and differenc...
Federal Policy Towards State and Local Economic Development in the 1990s
Federal Policy State and Local Economic Development the 1990s
2009/11/5
This paper suggests new federal policies towards state and local economic development assistance to business. I argue that there is some evidence that these programs can be effective in encouraging bu...
Family Planning Clinic Services in the United States:Patterns and Trends in the Late 1990s
Family Planning Clinic Services 1990s United States
2009/9/16
Context: Publicly funded family planning clinics are a vital source of contraceptive and reproductive health care for millions of U.S. women. It is important periodically to assess the number and type...
The paper aims at deriving lessons for macroeconomic policy in developing countries in response to heavy temporary capital inflows as witnessed in the early 1990s. First, after spelling out the major ...
Long-term changes in UT/LS ozone between the late 1970s and the 1990s deduced from the GASP and MOZAIC aircraft programs and from ozonesondes
UT/LS ozone GASP MOZAIC aircraft programs ozonesondes
2009/8/7
We present ozone measurements of the Global Atmospheric Sampling Program (GASP) performed from four commercial and one research aircraft in the late 1970s to compare them with respective measurements ...
Marine Meteorological Conditions and Air-Sea Exchange Processes Over Northern Baltic Sea in 1990s
Baltic Sea marine meteorology air-sea interaction surface fluxes fetch from the coast
2009/6/9
Marine meteorological conditions and air-sea exchange processes over the northern Baltic Sea
were studied using data from three open-sea lighthouse meteorological stations and the R/V Aranda automati...
Rapid channel incision of the lower Pearl River (China) since the 1990s as a consequence of sediment depletion
channel incision lower Pearl River water discharge sediment depletion
2009/5/13
This paper reported a dramatic channel incision (>10 m in the deepest cut) during the past 10 y or so in the lower Pearl River, the second largest river in terms of water discharge in China. The chan...
The co-production of a “relevant” expertise–administrative and scientific cooperation in the French water policies elaboration and implementation since the 1990s
French water policies scientific cooperation
2009/5/4
This paper aims at understanding the social and political uses of the principle of integrated management and its possible impacts on the elaboration and implementation processes of public policies in ...