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101.
达坂城风力发电厂风的天气气候特征及预报问题研究 总被引:4,自引:0,他引:4
陈勇航 《沙漠与绿洲气象(新疆气象)》2000,23(5):5-7
对达坂城风力发电厂提供的1998年该厂单点风速资料进行统计分析,总结出天气气候特征,并运用天气学方法对其进行研究,找出预报指标,强调了单点风速预报制作过程中的实验问题。 相似文献
102.
At present,more and more offshore wind farms have been built and numerous projects are on the drawing tables.Therefore,the study on the safety of collision between ships and offshore wind turbines (OWT) is of great practical significance.The present study takes the advantage of the famous LS-DYNA explicit code to simulate the dynamic process of the collision between a typical 3MW offshore wind turbine model with monopile foundation and a simplified 2000t-class ship model.In the simulation,the added mass eff... 相似文献
103.
104.
With high resolution (1 km), the distribution of wind energy resources in Hainan province and
over its offshore waters is numerically simulated by using the Wind Energy Simulation Toolkit (WEST)
model developed by Meteorological Research Branch of Environment Canada. Compared with
observations from eight coastal anemometric towers and 18 existing stations in the province, the
simulations show good reproduction of the real distribution of wind resources in Hainan and over its
offshore waters, with the relative error of annual mean wind speed being no more than 9% at the 70-m
level. Moreover, based on the simulated results of WEST grids that are closest to where the eight wind
towers are located, the annual mean wind speeds are further estimated by using the Danish software WasP
(Wind Atlas Analysis and Application Program). The estimated results are then compared with the
observations from the towers. It shows that the relative error is also less than 9%. Therefore, WEST and
WEST+WAsP will be useful tools for the assessment of wind energy resources in high resolution and
selection of wind farm sites in Hainan province and over its offshore waters. 相似文献
105.
Based on the Typhoon Yearbook data (1980–2000), some wind-pressure fitting relationships
were established for different typhoon intensity at the different latitudes of the western North Pacific. As
shown in validations with the 2001-2005 data, the relationships (namely, those between minimum sea
level pressure (SLP) and maximum sustained wind near a typhoon center) are stable. They may be applied
to correct the overestimated typhoon wind speeds in earlier years (1950–1979). Statistical analysis
showed that the stronger the typhoon, the more stable this wind-pressure relationship is. Moreover, it is
more stable at the lower latitude belt (10°N–30°N). On the basis of this result, a methodology of
correcting typhoon’s wind speeds and frequency in these years was put forward, and the climatological
series were reconstructed of yearly total typhoon frequencies over the western North Pacific in 1950-1979
and indices were determined of destructive power of typhoons in the offshore regions of China. 相似文献
106.
107.
108.
本文通过模拟维持瓦特斯兰德矿区风力活动直接特征形过程的实验,简要说明了维特瓦特斯兰德矿区金矿成因的风成观点。 相似文献
110.
我国东南沿海广泛分布的海岸沙丘是海岸带环境演变的产物。该文对福建东南漳浦古雷海岸沙丘剖面(GL)进行了年代学、粒度参数和成因判别分析,在此基础上提取了对冬季风强度变化敏感的粒级组分,同时综合历史文献气候记录和泥炭地质记录分析,初步确定了研究区近1 300年以来海岸沙丘记录的冬季风环境演变信息,大致可划分为3个阶段:680-1100AD,海岸带冬季风强度总体较弱,后期表现为增强趋势,反映风暴潮活动频繁、气候温暖的海岸环境;1100-1700AD,海岸带冬季风强度波动增强,反映风沙活动强烈、较寒冷的海岸气候环境;1700AD至今,冬季风强度波动减弱,反映海岸气候环境在波动中回暖、风暴潮活动趋于增强。 相似文献