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| 1 | Relationships between δ ^(18)O in summer precipitation and temperature and moisture trajectories at Muztagata, western China显示文摘Based on summer observations of stable isotope of precipitation at Muztagata, western China, during 2002―2003, this paper presents the relationship between δ 18O in precipitation and air temperature, and discusses the effect of moisture transport on δ 18O in precipitation. Results show that air temperature correlates positively with δ 18O in precipitation, and the temperature effect controls the δ 18O of precipitation in this area. The Muztagata region exhibits high δ 18O values in summer precipi-tation, similar to those shown at stations in adjacent regions. According to the results of our model set up to trace the moisture trajectories, the westerlies and local moisture circulation contribute to varia-tions of oxygen isotopes in precipitation. In addition, the impacts of the moisture transport distance, the moisture transport level, and the incursion of the polar air mass also influence the variations of δ 18O in precipitation. The moisture origins and transport mechanisms also contribute to the variation of δ 18O in precipitation at Muztagata. | YU Wusheng1,2, YAO Tandong1,2, TIAN Lide1,2, LI Zhen2, SUN Weizhen2 & WANG Yu2 1. Laboratory of Environment and Process on Tibetan Plateau, Institute of Tibetan Plateau Research, Chinese Academy of Sciences, Beijing 100085, China 2. Key Laboratory of Cryosphere and Environment, Jointly Established by Cold and Arid Regions Environmental and Engi-neering Research Institute and Institute of Tibetan Plateau Research, Chinese Academy of Sciences and Chinese Academy of Meteorological Sciences, China Meteorological Administration, CAS, Lanzhou 730000, China | 2006 | Science China Earth Sciences2006，49，1： | 18 |
| 2 | Radiometric cross-calibration of the CBERS-02 CCD camera with the TERRA MODIS显示文摘For the application of the CCD camera, the most important payload on CBERS-02, the key is to provide long-term stable radiometric calibration coefficients. Although the vicarious calibration had been proved successful, it had its limitations such as test site requirement and unsuitable for historical data. Cross-calibration is one of the alternative methods, but it needs synchro surface spectrum to achieve spectral band matching factors. Our effort is to probe the influences on these factors. Simulations with a lot of surface spectrum showed that the factors changed with the viewing geometry, atmospheric condition and surface targets. However, simulating with the same viewing geometry and atmospheric condition, the spectral band matching factors of the same or similar surface targets’ spectrum acquired from different dates and different places would like to be consistent to each other within 1%―5%. Thus, the synchro measurement data can be substituted by the same or similar target from other source. Based on this method, using the MODIS as the reference, the cross-calibration was performed for CCD camera. The research demonstrated that the traditional method with single calibration site was inappropriate for CCD camera, since the offsets for its four spectral bands were not zeros. With four calibration sites, these offsets were obtained. And the camera was detected to degrade with dates based on four times of cross-calibrations. | LI Xiaoying1,2,3, GU Xingfa1,3,4, MIN Xiangjun5, YU Tao1,3, FU Qiaoyan5, ZHANG Yong1,2,3 & LI Xiaowen1,3 1. State Key Laboratory of Remote Sensing Science, Jointly Sponsored by the Institute of Remote Sensing Applications of Chinese Academy of Sciences and Beijing Normal University, Beijing 100101, China 2. Graduate University of Chinese Academy of Sciences, Beijing 100039, China 3. The Center for National Spaceborne Demonstration, Beijing 100101, China 4. Institut National de la Recherche Agronomique, Climat Sol Environnement, 84914 Avignon, France 5. China Center for Resource Satellite Data and Application, Beijing 100830, China | 2005 | Science China(Technological Sciences)2005，48，S2： | 15 |
| 3 | HJ-1A HSI on-orbit radiometric calibration and validation research显示文摘The calibration experiment data at Dunhuang radiometric calibration site in October, 2008 were used to achieve the on-orbit radiometric calibration for HJ-1A hyper spectral imager (HSI). Two other field experiments data were used to validate the Dunhuang calibration results. One field experiment took place in Inner-Mongolia, China in September, 2008, and the other field experiment took place in Lake Frome, Australia in February, 2009. Finally, the ‘confidence interval of calibration error’ concept was put forward for quantitatively computing the calibration coefficient error confidence interval. The results showed that the Dunhuang calibration results in 2008 had high reliability. The confidence intervals of calibration error for all HSI channels were between 2% to 12%, which could satisfy the requirement of the HSI quantitative applications. | GAO HaiLiang1,2,3*, GU XingFa1,3*, YU Tao1,3, GONG Hui1,2,3, LI JiaGuo1,2,3 & LI XiaoYing1,3 1 State Key Laboratory of Remote Sensing Science, Jointly Sponsored by the Institute of Remote Sensing Applications of Chinese Academy of Sciences and Beijing Normal University, Beijing 100101, China 2 Graduate University of Chinese Academy of Sciences, Beijing 100039, China 3 Center for National Spaceborne Demonstration, Beijing 100101, China | 2010 | Science China(Technological Sciences)2010，53，11： | 10 |
| 4 | Absolute radiometric calibration of CBERS-02 IRMSS thermal band显示文摘Based on the laboratory calibration before launch of CBERS-02 IRMSS thermal infrared channel, the onboard blackbody calibration, the radiometric cross- calibration against TERRA MODIS corresponding channel and the in-flight field calibration at Lake Qinghai: water surface radiometric calibration test site of China on Aug. 17, 2004 are carried out in this research. When making onboard blackbody calibration of CBERS-02 IRMSS, it is necessary to understand inside structures and light path in IRMSS camera and receive and process calibration blackbody signals at normal and high temperatures. Onboard blackbody calibration results of each detector are very important to relative radiometric calibration of images processing and absolute radiometric calibration of each detector. In-flight field calibration mainly contains field experiments, obtaining synchronous images, spectrum marching and MODTRAN radiative transmi- ssion computation. Radiometric cross-calibration of CBERS-02 IRMSS thermal band against TERRA MODIS selected 6 times synchronous images of two sensors passing through Lake Qinghai and Lake Taihu from August to December, 2004 to compute the cross calibration data. Combining the in-flight field calibration and radiometric cross calibration data, the absolute radiometric calibration coefficients are calculated by the linear regression method. This new calibration model can obviously control the radiometric calibration uncertainties aroused by the single point method used in the in-flight calibration of CBERS-02 IRMSS, this kind of sensors cannot receive the cosmic background radiation. In this research, the radiometric calibration coefficients obtained through the linear regression model are 8.53 (gain, unit: DN/W m?2sr?1μm?1) and 44.92 (offset, unit: DN). | ZHANG Yong1,2,3, GU Xingfa1,3,4, YU Tao1,3, ZHANG Yuxiang5, CHEN Liangfu1,3, LI Xiaoying1,2,3, LI Xiaowen1,3 & HE Liming6 1. State Key Laboratory of Remote Sensing Science, Jointly Sponsored by the Institute of Remote Sensing Applications of Chinese Academy of Sciences and Beijing Normal University, Beijing 100101, China 2. Graduate University of Chinese Academy of Sciences, Beijing 100039, China 3. The Center for National Spaceborne Demonstration, Beijing 100101, China 4. Institut National de la Recherche Agronomique, Climat Sol Environnement, 84914 Avignon, France 5. National Satellite Meteorological Center, Beijing 100081, China 6. State Environmental Protection Administration, Beijing 100029, China | 2005 | Science China(Technological Sciences)2005，48，S2： | 6 |
| 5 | In flight MTF monitoring and compensation for CCD camera on CBERS-02显示文摘In this article, the approach of simulating ideal tarp scene was proposed to determine the MTF for CCD camera on CBERS-02. The MTF acquired from this technique was compared to those from some common methods. MTFs achieved from different approaches were employed to compensate the CCD images based on three restoration algorithms: the iterative method, the Wiener filter and the modified inverse filter (MIF). The two-dimensional MTF was established with the value at frequency 0.5 for 45° directional MTF as the value at its four corners. This article addressed the variations of the restored CCD images with different techniques of constructing two-dimensional MTF, restoring algorithms and determining the in-flight MTFs. Results showed images restored with the MTF determined from the technique of simulating ideal tarp scene represent the real scene best. And the restoration technique based on the MIF would produce better restored images than the other two techniques. This research also demonstrated that the two-dimensional MTF used for restoration should be interpolated under the control of the MTF for 45° axis, rather than by multiplying the cross-orbit MTF with along-orbit MTF. | GU Xingfa1,2,3, LI Xiaoying1,2,4, MIN Xiangjun5, YU Tao1,2, SUN Jijuan5, ZENG Yong1,2,4, XU Hua1,2 & GUO Ding2,6 1. State Key Laboratory of Remote Sensing Science, Jointly Sponsored by the Institute of Remote Sensing Applications of Chinese Academy of Sciences and Beijing Normal University, Beijing 100101, China 2. The Center for National Spaceborne Demonstration, Beijing 100101, China 3. Institut National de la Recherche Agronomique, Climat Sol Environnement, 84914 Avignon, France 4. Graduate University of Chinese Academy of Sciences, Beijing 100039, China 5. China Center for Resource Satellite Data and Application, Beijing 100830, China 6. University of Electronic Science and Technology of China, Chengdu 610054, China | 2005 | Science China(Technological Sciences)2005，48，S2： | 4 |
| 6 | Aerosol retrieval over land by exploiting the synergy of TERRA and AQUA MODIS DATA显示文摘Aerosol retrieval over land from satellite remotely sensed data remains internationally a difficult task. By using MODIS data, the Dark Dense Vegetation (DDV) algorithm aerosol distribution and properties retrieval over land has shown excellent competence. However, this algorithm is re-stricted to lower surface reflectance such as water bodies and dense vegetation, which limits its actual application, and is unable to be used for high reflective surface such as over urban areas. In this paper, we introduce a new aerosol retrieval model by exploiting the Synergy of TERRA and AQUA MODIS data (SYNTAM), which can be used for various ground surfaces, including for high reflective surface. Preliminary validations have been carried out by comparing with AERONET measured data, which shows good accuracy and promising potential. Further research work is undergoing. | TANG Jiakui1, XUE Yong1,2, YU Tong3, GUAN Yanning1, CAI Guoyin1 & HU Yincui1 1. State Key Laboratory of Remote Sensing Science, Jointly Sponsored by the Institute of Remote Sensing Applications of Chinese Academy of Sciences and Beijing Normal University, Beijing 100101, China 2. Department of Computing, London Metropolitan University, 166-220 Holloway Road, London N7 8DB, UK 3. Beijing Environmental Monitor Center, Beijing 100044, China | 2006 | Science China Earth Sciences2006，49，6： | 4 |
| 7 | Adiponectin induces growth arrest and apoptosis of MDA-MB-231 breast cancer cell显示文摘 | Kang JH Lee YY Yu BY | 2005 | Arch Pharm Res2005，28，11： | 1 |
| 8 | Inhibitory effects of ethanol extract from Radix Ophiopogon japonicus on venous thrombosis linked with its endothelium-protective and mati-adhesive activities 显示文摘 | Kou JP Yu BY Xu Q | 2005 | Vasc Pharmacol2005，43，3： | 1 |
| 9 | Relationship of serum adiponectin and resistin levels with breast caneer risk显示文摘 | Kang JH Yu BY Youn DS | 2007 | J Korean Med Sei2007，22，1： | 1 |
| 10 | Neural differentiation of human induced pluripotent stem cells follows developmental principles but with variable potency显示文摘 | Hu BY Weick JP Yu J | 2010 | Proc Natl Acad Sci USA2010，107，9： | 1 |
| 11 | Quercetin inhibits c-fos,heat shock protein,and glial fibrillary acidic protein expression in injured astrocytes显示文摘 | Wu BY Yu AC | 2000 | J Neurosci Res2000，62，5： | 1 |
| 12 | Subarachnoid hemorrhage with negative baseline digital subtraction angiography: is repeat digital subtraction angiography necessary? 显示文摘 | Yu DW Jung YJ Choi BY | 2012 | J Cerebrovasc Endovasc Neurosurg2012，14，3： | 1 |
| 13 | Determination of glycyrrhizin in Chinese prescription and biological samples by enzyme-linked immunosorbent assay显示文摘 | Zeng H J Yu BY Liu J H | 2006 | Analytica Chimica Acta2006，464，： | 1 |
| 14 | Prediction of human absorption of natural compounds by the non-everted rat intestinal sac model显示文摘 | Ruan LP Chen S Yu BY | 2006 | Eur J Med Chem2006，41，5： | 1 |
| 15 | Amelioration of age-related inflammation and oxidative stress by PPARγ activator:suppression of NF-κB by 2,4-thiazolidinedione显示文摘 | Sung BY Park S Yu BP | 2006 | Exp Geronto2006，41，6： | 1 |
| 16 | of chitooligosaccharides from chicomplex enzyme 显示文摘 | Hu Zhang Preparation tosan by a Res 1999 Yuguang Du Xingju Yu | 1999 | Carbohydr1999，320，： | 1 |
| 17 | The behaviors of human mesenchymal stem cells on the poly(3 -hy droxybutyrate-co-3-hydroxyhexanoate) (PHBHHx) membranes 显示文摘 | Yu BY Chen PY Sun YM | 2008 | Desalination2008，234，13： | 1 |
| 18 | Incidental discovery of high systemic lupus erythematosus disease activity associated with cytomegalovirus viral activity显示文摘 | Su BY Su CY Yu SF | 2007 | Med Microbiol Immunol2007，196，3： | 1 |
| 19 | Adiponectin induces growth arrest and apoptosis of MDA-MB-251 breast cancer cell显示文摘 | Kang JH Lee YY Yu BY et aI | 2005 | Arch Pharm Pes2005，28，11： | 1 |
| 20 | Determination of glycyrrhizinin Chinese prescriptions and biological samples by enzyme-linked immunosorbent assay 显示文摘 | Zeng HJ Yu BY Liu JH | 2006 | Anal Chim Acta2006，564，2： | 1 |
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