全文获取类型
收费全文 | 36篇 |
免费 | 1篇 |
国内免费 | 31篇 |
专业分类
大气科学 | 12篇 |
地球物理 | 5篇 |
地质学 | 2篇 |
海洋学 | 39篇 |
综合类 | 8篇 |
自然地理 | 2篇 |
出版年
2022年 | 6篇 |
2021年 | 3篇 |
2020年 | 2篇 |
2019年 | 4篇 |
2018年 | 1篇 |
2017年 | 2篇 |
2016年 | 2篇 |
2015年 | 2篇 |
2014年 | 3篇 |
2012年 | 2篇 |
2011年 | 3篇 |
2010年 | 3篇 |
2009年 | 4篇 |
2008年 | 2篇 |
2007年 | 5篇 |
2006年 | 3篇 |
2005年 | 4篇 |
2004年 | 2篇 |
2003年 | 1篇 |
2000年 | 2篇 |
1999年 | 5篇 |
1998年 | 2篇 |
1997年 | 3篇 |
1995年 | 1篇 |
1994年 | 1篇 |
排序方式: 共有68条查询结果,搜索用时 196 毫秒
61.
According to the satellite remote sensing monthly mean sea surface temperature data from 1998 to 2002, it is shown that, the Sulu Sea is dominated by a cold eddy both in summer and winter. A coupled single-layer/two-layer model is employed here to study the summery and wintry characteristics and dynamic mechanism of the upper circulation in the Sulu Sea. According to the numerical experiments, it is found that, due to the local monsoon stress cud, the upper circulation in the Sulu Sea is dominated by a weak anticyclonic eddy in summer and a strong cyclonic eddy in winter. Once there is a large outflow via the Sibutu Passage flowing out of the Sulu Sea in summer, the upper circulation in the Sulu Sea may be dominated by a cyclonic eddy instead of the normal anti- cyclonic one. Moreover, in summer, the water exchange between the Sulu Sea and South China Sea via the Mindoro and Balabac Straits might have some effect on the separation position and strength of the northward western boundary current next to the Indo - China Peninsula in the southern South China Sea. 相似文献
62.
Phytoplankton are central components of marine environments,and are major players in the production and respiration budgeting.However,their diversity and distri... 相似文献
63.
Currents and mixing in the northern South China Sea 总被引:1,自引:0,他引:1
We investigated the vertical distribution of current velocity data of the entire water column at a site on the continental
shelf of the northern South China Sea (SCS) from August 4 to September 6, 2007, and found that the characteristics of barotropic
and baroclinic tides are mainly diurnal. During the observation period, we also estimated the mixing before and after the
passage of Typhoon Pabuk. We found that the internal-wave-scale dissipation rate, the turbulent dissipation rate, and the
mixing rate in every water layer increased by about an order of magnitude after the typhoon passage. We analyzed a case of
abrupt strong current and calculated the mixing rate before, during, and after the typhoon event. The results show that the
internal-wave-scale dissipation rate and the mixing rate in every water layer increased by about two orders of magnitude during
the event, while the turbulent dissipation rate increased by about an order of magnitude. Passage of the abrupt strong current
could also have increased the mixing rate of affected seawater by more than an order of magnitude. However, the passage of
the typhoon differed in that there was an increase in mixing only in the lower layer where the abrupt strong current was particularly
strong. The variation of the mixing rate may help us to understand the effects of typhoons and abrupt strong currents on the
mixing of seawater. 相似文献
64.
65.
南海混合层近惯性能通量的时空变化 总被引:1,自引:1,他引:0
On the basis of the QSCAT/NCEP blended wind data and simple ocean data assimilation(SODA), the wind-induced near-inertial energy flux(NIEF) in the mixed layer of the South China Sea(SCS) is estimated by a slab model, and the model results are verified by observational data near the Xisha Islands in the SCS. Then, the spatial and temporal variations of the NIEF in the SCS are analyzed. It is found that, the monthly mean NIEF exhibits obvious spatial and temporal variabilities, i.e., it is large west of Luzon Island all the year, east of the Indo-China Peninsula all the year except in spring, and in the northern SCS from May to September. The large monthly mean NIEF in the first two zones may be affected by the large local wind stress curl whilst that in the last zone is probably due to the shallow mixed layer depth. Moreover, the monthly mean NIEF is relatively large in summer and autumn due to the passage of typhoons. The spatial mean NIEF in the mixed layer of the SCS is estimated to be about 1.25 m W/m2 and the total wind energy input from wind is approximately 4.4 GW. Furthermore, the interannual variability of the spatial monthly mean NIEF and the Ni?o3.4 index are negatively correlated. 相似文献
66.
用聚类分析方法对四川盆地降水区域的划分 总被引:3,自引:2,他引:1
采用14年逐日降水资料计算了四川盆地各站间的相关系数,再应用系统聚类法进行降水区域的划分,将盆地共分成11片。同时,对成都市14(区)县划分成了3片。结果发现:这种区域划分与实际降水区域配合较好,符合实际天气意义。同时这种降水区域的划分对提高四川盆地降水预报的能力有很大好处,值得探索 相似文献
67.
采用14年逐日降水资料计算了四川盆地各站间的相关系数,再应用系统聚类法进行降水区域的划分,将盆地共分成11片.同时,对成都市14(区)县划分成了3片.结果发现:这种区域划分与实际降水区域配合较好,符合实际天气意义.同时这种降水区域的划分对提高四川盆地降水预报的能力有很大好处,值得探索. 相似文献
68.
A reduced vertically integrated upper mixed layer model is set up to numerically study the thermodynamic process of the formation of the “Nansha warm water”(NWW) in the Nansha Islands sea areas in spring. According to the numerical experiments, it is shown that, in spring, the formation of the NWW is mainly due to the sea surface net heat flux and the local weak current strength; the contribution from temperature advection transport and warm water exchange with the outer seas (Sulu Sea or south of Sunda shelf) is very little. In the sea areas where the current is strong, the advection may also play an important role in the temperature field. 相似文献