全文获取类型
收费全文 | 503篇 |
免费 | 27篇 |
国内免费 | 33篇 |
专业分类
测绘学 | 8篇 |
大气科学 | 64篇 |
地球物理 | 140篇 |
地质学 | 121篇 |
海洋学 | 140篇 |
天文学 | 50篇 |
综合类 | 23篇 |
自然地理 | 17篇 |
出版年
2022年 | 6篇 |
2021年 | 8篇 |
2020年 | 14篇 |
2019年 | 13篇 |
2018年 | 19篇 |
2017年 | 27篇 |
2016年 | 30篇 |
2015年 | 25篇 |
2014年 | 34篇 |
2013年 | 47篇 |
2012年 | 31篇 |
2011年 | 38篇 |
2010年 | 45篇 |
2009年 | 30篇 |
2008年 | 31篇 |
2007年 | 26篇 |
2006年 | 13篇 |
2005年 | 20篇 |
2004年 | 8篇 |
2003年 | 15篇 |
2002年 | 10篇 |
2001年 | 3篇 |
2000年 | 6篇 |
1999年 | 6篇 |
1998年 | 3篇 |
1997年 | 2篇 |
1996年 | 2篇 |
1995年 | 5篇 |
1992年 | 4篇 |
1991年 | 3篇 |
1990年 | 3篇 |
1989年 | 3篇 |
1988年 | 2篇 |
1986年 | 3篇 |
1983年 | 2篇 |
1982年 | 1篇 |
1981年 | 2篇 |
1980年 | 3篇 |
1978年 | 1篇 |
1977年 | 3篇 |
1976年 | 2篇 |
1975年 | 1篇 |
1971年 | 1篇 |
1970年 | 1篇 |
1968年 | 1篇 |
1962年 | 2篇 |
1960年 | 1篇 |
1954年 | 3篇 |
1949年 | 1篇 |
1933年 | 1篇 |
排序方式: 共有563条查询结果,搜索用时 187 毫秒
441.
Eun Jin Kim Sok Kuh Kang Sung-Tae Jang Jae Hak Lee Young Ho Kim Hyoun-Woo Kang Yeong Yeon Kwon Young Ho Seung 《Ocean Science Journal》2010,45(3):159-170
Satellite-derived sea surface temperature (SST) is validated based on in-situ data from the East China Sea (ECS) and western North Pacific where most typhoons, which make landfall on the Korean peninsula, are formed and pass. While forecasting typhoons in terms of intensity and track, coupled ocean-typhoon models are significantly influenced by initial ocean condition. Potentially, satellite-derived SST is a very useful dataset to obtain initial ocean field because of its wide spatial coverage and high temporal resolution. In this study, satellite-derived SST from various sources such as Tropical Rainfall Measuring Mission Microwave Imager (TMI), Advanced Microwave Scanning Radiometer for Earth Observing System (AMSR-E) and New Generation Sea Surface Temperature for Open Ocean (NGSST-O) datasets from merged SSTs were compared with in-situ observation data using an indirect method which is using near surface temperature for validation of satellite derived SST. In-situ observation data included shipboard measurements such as Expendable Bathythermograph (XBT), and Conductivity, Temperature, Depth (CTD), and Argo buoy data. This study shows that in-situ data can be used for microwave derived SST validation because homogeneous features of seawater prevail at water depths of 2 m to 10 m under favorable wind conditions during the summer season in the East China Sea. As a result of validation, root-mean-square errors (RMSEs) are shown to be 0.55 °C between microwave SST and XBT/CTD data mostly under weak wind conditions, and 0.7 °C between XBT/CTD measurement and NGSST-O data. Microwave SST RMSE of 0.55 °C is a potentially valuable data source for general application. Change of SST before and after typhoon passing may imply strength of ocean mixing due to upwelling and turbulent mixing driven by the typhoon. Based on SST change, ocean mixing, driven by Typhoon Nari, was examined. Satellite-derived SST reveals a significant SST drop around the track immediately following the passing of Typhoon Nari in October, 2007. 相似文献
442.
Yeon S. Chang Jong Dae Do Weon Mu Jeong Sang Kwon Hyun Won-Dae Baek Jae Ho Choi Jae-Youll Jin 《Ocean Science Journal》2020,55(1):1-16
Beach erosion is a serious problem that can be aggravated by human-made structures, and the modeling of breaking waves near the coast and around coastal st 相似文献
443.
We project changes of the Aleutian Low (AL) under global warming using ensemble simulations with a fully coupled ocean-atmosphere-sea ice model, the Kiel C 相似文献
444.
Ocean Science Journal - Dokdo and Ulleungdo islands harbor diverse marine algae and are therefore uniquely well-suited for research on marine algae distribution and ecological changes. However,... 相似文献
445.
INTRODUCTIONOceantidesplayaveryimportantroleinthedynamicsoftheEarthandhaveattractedmanypeople’sattentionsinceancienttimes.Beforethelate 1 970s,tidesweremeasuredmainlybycoastalgauges .Directmeasurementsaswellasnumericalsimulations,canprovidefairlyaccurateu… 相似文献
446.
Eun-Hyuk Baek Gyu-Ho Lim Joo-Hong Kim Jong-Seong Kug 《Theoretical and Applied Climatology》2014,118(1-2):9-24
This study examines antecedent mid-tropospheric frontogenesis (AMF) resulting from the interaction between Typhoon Rusa (2002) and a midlatitude trough over the Korean Peninsula. In this event, the AMF contributed to the first peak in the time series of rainfall in Gangneung (37.75°N, 128.90°E), occurring about 12 h before the time of the extratropical transition (ET) process of the tropical cyclone (TC). Using observations and high-resolution model outputs, we showed that the AMF contributed to the antecedent rainfall in Gangneung during the first rainfall period when Gangneung was located outside of Rusa's sphere of direct influence. A Weather Research Forecasting (WRF) model experiment was conducted to diagnose the frontogenetical features and associated precipitation processes in detail. The experiment revealed that the AMF was mainly forced by the horizontal deformation forcing (HDF). The direction of the HDF was oriented from southwest to northeast in the middle part of the peninsula. The HDF increased positively due to the confluence of the southeasterlies from the TC and the northwesterlies emanating from the midlatitude trough. The experiment also suggested that the mid-tropospheric moisture originated from the subtropical ocean and deposited into the frontal region by the southerlies on the eastern periphery of the TC, which enhanced the convergence of moisture flux in the frontal region during the first rainfall period. The thermally direct circulation associated with the AMF lead to the mid-tropospheric saturation, which enhanced the precipitation of the first rainfall event together with the orographically forced convection at the low level above Gangneung. 相似文献
447.
Examination of multi-model ensemble seasonal prediction methods using a simple climate system 总被引:2,自引:0,他引:2
A simple climate model was designed as a proxy for the real climate system, and a number of prediction models were generated
by slightly perturbing the physical parameters of the simple model. A set of long (240 years) historical hindcast predictions
were performed with various prediction models, which are used to examine various issues of multi-model ensemble seasonal prediction,
such as the best ways of blending multi-models and the selection of models. Based on these results, we suggest a feasible
way of maximizing the benefit of using multi models in seasonal prediction. In particular, three types of multi-model ensemble
prediction systems, i.e., the simple composite, superensemble, and the composite after statistically correcting individual
predictions (corrected composite), are examined and compared to each other. The superensemble has more of an overfitting problem
than the others, especially for the case of small training samples and/or weak external forcing, and the corrected composite
produces the best prediction skill among the multi-model systems. 相似文献
448.
This study examines a Kuroshio main path(KMP) cut-off event east of Taiwan Island occurred in fall-winter2013–2014 and its impacts on the South China Sea(SCS) by analyzing satellite altimetry and mooring observations. Satellite altimeter sea level anomaly(SLA) images reveal a complete process that a huge cyclonic eddy(CE) from the Pacific collided with the Kuroshio and the western boundary from 15 October 2013 to 15 January 2014. Mooring observations evidenced that the Kuroshio upper ocean volume transport was cut off more than 82% from 17×106 m~3/s in September to 3×106 m~3/s in November 2013. The KMP cut-off event caused the Kuroshio branching and intruding into the SCS and strengthened the eddy kinetic energy in the northern SCS west of the Luzon Strait. Using the total momentum as a dynamic criterion to determine the role of eddy collision with the Kuroshio reasonably explains the KMP cut-off event. 相似文献
449.
Ocean Science Journal - In this study, a separation index for the East Korea Warm Current (EKWC) is defined by Lagrangian particle tracking using surface geostrophic currents based on... 相似文献
450.
Shin Hyeon Ho Li Zhun Seo Min Ho Soh Ho Young Lim Weol Ae Park Jong Woo 《Ocean Science Journal》2019,54(4):685-691
Ocean Science Journal - There have been controversies regarding the taxonomy of Prorocentrum donghaiense, however Zhang et al. (2016) recently developed a probe with a quantitative real-time PCR... 相似文献