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Chinese Academy of Sciences Institutional Repositories Grid
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CAS IR Grid
机构
地理科学与资源研究所 [2]
南京地质古生物研究所 [2]
新疆生态与地理研究所 [1]
长春光学精密机械与物... [1]
西双版纳热带植物园 [1]
西北高原生物研究所 [1]
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OAI收割 [9]
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期刊论文 [6]
SCI/SSCI论文 [1]
会议论文 [1]
学位论文 [1]
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2023 [1]
2021 [1]
2019 [2]
2014 [2]
2011 [1]
2006 [2]
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学科主题
Biodiversi... [1]
Environmen... [1]
生物科学 [1]
自然地理学 [1]
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A new extinct conifer Brachyoxylon from the Middle Jurassic in southern China: Wood anatomy, leaf phenology and paleoclimate
期刊论文
OAI收割
REVIEW OF PALAEOBOTANY AND PALYNOLOGY, 2023, 卷号: 317, 页码: 11
作者:
Xie, Aowei
;
Wang, Yongdong
;
Tian, Ning
;
Uhl, Dieter
  |  
收藏
  |  
浏览/下载:18/0
  |  
提交时间:2023/10/09
Brachyoxylon qijiangense sp
nov
Upper Shaximiao Formation
Leaf retention time
Mean sensitivity
Qijiang
A more southerly occurrence of Xenoxylon in North America: X. utahense Xie et Gee sp. nov. from the Upper Jurassic Morrison Formation in Utah, USA, and its paleobiogeographic and paleoclimatic significance
期刊论文
OAI收割
REVIEW OF PALAEOBOTANY AND PALYNOLOGY, 2021, 卷号: 291, 页码: 13
作者:
Xie, Aowei
;
Gee, Carole T.
;
Bennis, Mary Beth
;
Gray, Dale
;
Sprinkel, Douglas A.
  |  
收藏
  |  
浏览/下载:39/0
  |  
提交时间:2021/09/07
Growth ring analysis
Mean sensitivity
Miroviaceae
Salt Wash Member
Xenoxylean
蒙古西部哈尔赫拉河长期季节性气候特征与模拟及其对径流影响
学位论文
OAI收割
北京: 中国科学院大学, 2019
作者:
Shinebayar Otgon
  |  
收藏
  |  
浏览/下载:68/0
  |  
提交时间:2021/12/10
气候变化
日均气温
总降水量
ANN 模型
路径分析
哈尔西
拉河流域
敏感度分析
敏感度分析
Climate change
daily mean temperature
Kharkhiraa river basin
Total precipitation
ANN model
Path analysis
Sensitivity analysis
Underestimated ecosystem carbon turnover time and sequestration under the steady state assumption: A perspective from long-term data assimilation
期刊论文
OAI收割
GLOBAL CHANGE BIOLOGY, 2019, 卷号: 25, 期号: 3, 页码: 938-953
作者:
Ge, Rong
;
He, Honglin
;
Ren, Xiaoli
;
Zhang, Li
;
Yu, Guirui
  |  
收藏
  |  
浏览/下载:148/0
  |  
提交时间:2019/04/22
Mean Residence Time
Old-growth Forests
Soil Carbon
Terrestrial Carbon
Global Patterns
Temperature Sensitivity
Eddy Covariance
Spin-up
Spatial-patterns
Model
Runoff sensitivity to global mean temperature change in the CMIP5 Models
期刊论文
OAI收割
GEOPHYSICAL RESEARCH LETTERS, 2014, 卷号: 41, 期号: 15, 页码: 5492-5498
作者:
Zhang, Xuezhen
;
Tang, Qiuhong
收藏
  |  
浏览/下载:18/0
  |  
提交时间:2014/11/01
runoff sensitivity
climate change
CMIP5
global mean temperature
Runoff sensitivity to global mean temperature change in the CMIP5 Models
SCI/SSCI论文
OAI收割
2014
Zhang X. J.
;
Tang Q. H.
;
Zhang X. Z.
;
Lettenmaier D. P.
收藏
  |  
浏览/下载:22/0
  |  
提交时间:2014/12/24
runoff sensitivity
climate change
CMIP5
global mean temperature
climate-change
multimodel ensemble
water-resources
scenarios
projections
streamflow
extremes
impact
The Research of real time auto-recognition of the moire fringe (EI CONFERENCE)
会议论文
OAI收割
International Symposium on Photoelectronic Detection and Imaging 2011: Advances in Imaging Detectors and Applications, May 24, 2011 - May 26, 2011, Beijing, China
Wang M.-J.
;
Wu Z.-G.
收藏
  |  
浏览/下载:19/0
  |  
提交时间:2013/03/25
Measuring the movement of raster by the method of moire fringe has the advantage of high sensitivity
high resolution and non-contacted measurement. The characteristic of moire fringe is that the image is white alternate with black
the angle of the stripes is uniform
the width of the stripes is uniform
the terminators of the stripes aren't clear. A fast method that can figure out the width and angle of the moire fringe precisely is put forward in this paper. It calculates the angle the stripes firstly. According to the principle of the minimum mean squared error (MMSE)
the closer a series of data is
the smaller the value of the MMSE will be. The method is described as follows: It takes the image's center as the origin
180 beelines pass through the origin with the same angle interval. it calculates the value of the minimum mean squared error of the 180 beelines and find out the least one among those
then the angle of the moire fringe comes out primarily. In order to improving the calculating precision of moire fringe
60 equal angles are divided in the neighborhood of the angle
then a precise angle of moire fringe is calculated according to the principle of the MMSE. After getting out the angle of the moire fringe
we begin to calculate the width of moire fringe. A line vertical with the moire fringe is drawn
and we can get the width of the moire fringe by the vertical line. In order to get over the influence of the noise
an effective area with the shape of diamond is selected in the image. The data of area is accumulated and projected according to the direction of moire fringe
and a sine curve come out. The width of moire fringe can be obtained by getting the position of the first wave crest
the position of the last wave crest and the number of wave crest. Experiments prove that the precision of the method put forward in this paper is enhanced in comparison with the traditional frequency method
the precision of width calculation achieves to 99.6% according to the evaluation indicators of width detection error. The computing speed is boosted largely compared with traditional method
and it can achieve with 15 ms
that satisfying the demand of real time. 2011 SPIE.
Spatial and temporal relationships between precipitation and ANPP of four types of grasslands in northern China
期刊论文
OAI收割
JOURNAL OF ENVIRONMENTAL SCIENCES-CHINA, 2006, 卷号: 18, 期号: 5, 页码: 1024-1030
作者:
Guo Ran
;
Xiao-ke, Wang
;
Ouyang Zhi-yun
;
Li Ying-nian
收藏
  |  
浏览/下载:18/0
  |  
提交时间:2015/10/13
above-ground net primary productivity
mean annual precipitation
spatial sensitivity
inter-annual changes
Spatial and temporal relationships between precipitation and ANPP of four types of grasslands in northern China
期刊论文
OAI收割
journal of environmental sciences-china, 2006, 卷号: 18, 期号: 5, 页码: 1024-1030
作者:
Guo Ran
;
Xiao-ke, Wang
;
Ouyang Zhi-yun
;
Li Ying-nian
收藏
  |  
浏览/下载:24/0
  |  
提交时间:2009/11/17
above-ground net primary productivity
mean annual precipitation
spatial sensitivity
inter-annual changes