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Indian summer monsoon and winter Total Solar Irradiance signals in the tree-ring delta O-18 from foothills of High Asia, northern Pakistan 期刊论文 OAI收割
INTERNATIONAL JOURNAL OF CLIMATOLOGY, 2022, 页码: 11
作者: Li, Qiang; Liu, Yu; Sinha, Ashish; Kathayat, Gayatri; Duan, Xiangyu

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收藏 | 浏览/下载：23/0 | 提交时间：2023/03/30

Indian summer monsoon northern Pakistan Total Solar Irradiance tree-ring delta O-18

Determination of short-period terms of total solar irradiance 期刊论文 OAI收割
JOURNAL OF ASTROPHYSICS AND ASTRONOMY, 2019, 卷号: 40, 期号: 2, 页码: 8
作者: Zhao, Juan; Lin, Haibo; Liu, Jinhuo; Han, Yanben

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收藏 | 浏览/下载：19/0 | 提交时间：2020/03/10

Total solar irradiance short period

Investigation of the relationship between the air pollution and solar activity 期刊论文 OAI收割
ASTROPHYSICS AND SPACE SCIENCE, 2017, 卷号: 362, 期号: 8
作者: Liu, Bisong; Tan, Chengming

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收藏 | 浏览/下载：32/0 | 提交时间：2017/12/06

Air Pollution Index Sunspot Number Solar Radio Flux Total Solar Irradiance Correlation Conditional Probability

The environmental magnetic record of palaeoenvironmental variationsduring the past 3100 years: A possible solar influence? 期刊论文 OAI收割
Journal of Applied Geophysics, 2015, 卷号: 118, 期号: 2015, 页码: 24-36
作者: Anish K. Warrier[1]; K. Sandeep[1]; R. Shankar[1]; Zhou,WJ(Zhou,Weijian)[2]; Lu,XF(Lu,Xuefeng)[2]

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收藏 | 浏览/下载：25/0 | 提交时间：2018/11/14

Rock Magnetism Magnetic Susceptibility Rainfall Lake Sediments Total Solar Irradiance Spectral Analysis

The environmental magnetic record of palaeoenvironmental variationsduring the past 3100 years: A possible solar influence? 期刊论文 OAI收割
Journal of Applied Geophysics, 2015, 卷号: 118, 期号: 2015, 页码: 24-36
作者: Lu,XF(Lu,Xuefeng)[2]; Zhou,WJ(Zhou,Weijian)[2]; Anish K. Warrier[1]; R. Shankar[1]; K. Sandeep[1]

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收藏 | 浏览/下载：28/0 | 提交时间：2018/11/21

Rock magnetism Magnetic susceptibility Rainfall Lake sediments Total solar irradiance Spectral analysis

Observation of total solar irradiance (EI CONFERENCE) 会议论文 OAI收割
2012 World Automation Congress, WAC 2012, June 24, 2012 - June 28, 2012, Puerto Vallarta, Mexico
作者: Fang W.; Zhang H.; Chen Y.; Wang K.; Zhang H.

收藏 | 浏览/下载：26/0 | 提交时间：2013/03/25

Since 1978 7 independent experiments (Nimbus-7/ERB SMM/ACRIM I ERBS/ERBE UARS/ACRIM II SOHO/VIRGO ACRIMSAT/ACRIM III and EOS/SORCE) started in succession for long-term monitoring total solar irradiance. These experiments are described and 3 TSI composites constructed by the datasets of these experiments are introduced. The differences of the original data composite approach and trend of the 3 TSI composites are shown. The argument of the different trends of the 3 TSI composites is discussed and a conclusion is gotten that low accuracy low quality and the relative shortage of the early TSI measurement data are the substantial reasons of the differences among the 3 TSI composites. 2012 TSI Press.

Design and calibration of the solar irradiance monitor (EI CONFERENCE) 会议论文 OAI收割
International Symposium on Photoelectronic Detection and Imaging 2011: Space Exploration Technologies and Applications, May 24, 2011 - May 26, 2011, Beijing, China
作者: Yang D.-J.; Gong C.-H.; Wang Y.-P.; Ye X.; Fang W.

收藏 | 浏览/下载：25/0 | 提交时间：2013/03/25

The solar irradiance monitor (SIM) with the design accuracy of 5 used to monitor the secular changes of the total solar irradiance on FY-3 satellite takes the sun-scanning measurement method on-orbit. Compared to the sun-tracking measurement method this method simplifies the structure and cuts the cost but the measuring accuracy is affected by the sun-synchronous orbit sunlight incidence angle and the installing angle of the SIM in the satellite. Through the ground calibration experiment studies on the affection of different sunlight incidence angles to the measurement accuracy. First by the satellite tool kit (STK) simulation software simulates the orbital parameters of the sun-synchronous satellite and calculates the Sun ascension and declination at any time. By the orbit coordinate transformation matrix gets the components of the Sun vectors to the axes of the satellite and base on the components designs the field of view and the installing angles of the SIM. Then designs and completes the calibration experiment to calibrate the affection of the incidence angles. Selecting 11 different angles between the sunlight and the satellite X-axis measures the total solar irradiance by the SIM at each angle and compares to the irradiances of the SIAR reference radiometers and gets the coefficient curves of the three channels of the SIM. Finally by the quadratic fitting gets the correction equations on the incidence angles: R 1=5.7110-52 -2.45310 -3+1.0302 R2=2.8410-5-1. 96510-3+1.0314 and R3 =1.7210 -52-4.18410-4+0.9946. The equations will aimprove the on-orbit measurement accuracy of the solar irradiance and are very important to the on-orbit data processing after the satellite launched. 2011 SPIE.

Design of compound Fresnel-R lenses for new high-efficient photovoltaic concentrator (EI CONFERENCE) 会议论文 OAI收割
Nonimaging Optics: Efficient Design for Illumination and Solar Concentration VII, August 1, 2010 - August 4, 2010, San Diego, CA, United states
作者: Liu H.; Liu H.; Liu H.

收藏 | 浏览/下载：35/0 | 提交时间：2013/03/25

A new design of compound Fresnel-R concentrator is presented which is composed of two lenses: a primary lens (Fresnel lens) that works by total internal reflection at outer facets but refraction at inner facets and a secondary lens that works by refraction. In contrast to previous Fresnel lens concentrator this design increases the acceptance angle improves the irradiance uniformity on the solar cell and reduces the aspect ratio significantly. Another outstanding advantage of this concentrator is the fact that it mainly works by performing total internal reflection reducing chromatic dependence as well as Fresnel losses. An optical efficiency more than 80% can be achieved. Moreover in order to reduce the influence of manufacture accuracy and to increase the optical efficiency further the central part of the bottom of the secondary lens which directly adhered to the solar cell is designed as a cone-shaped prism to collect the sunlight that doesn't reach the solar cell. 2010 SPIE.

The Simulation measurement experiment and calibration for Solar Total Irradiance Monitor on board (EI CONFERENCE) 会议论文 OAI收割
ICO20: Remote Sensing and Infrared Devices and Systems, August 21, 2005 - August 26, 2005, Changchun, China
Yupeng W.; Wei F.; Bingxi Y.

收藏 | 浏览/下载：37/0 | 提交时间：2013/03/25

STIM (Solar Total Irradiance Monitor) can be used on sun-synchronous polar orbit weather satellites to measure the total solar irradiance. It contains three independent and identical wide view absolute radiometers. They are mounted on the satellite in an angle which ensure the sun scan over the field of view of the absolute radiometers. This measurement method doesn't need the instrument tracking the sun but the sun scan over the field of view of the absolute radiometers in each orbit cycle. The paper presents the measurement method of simulation for solar irradiance measurement and calibration by mounting the instrument on a two-axis rotation table. By controlling the rotation angle velocity of the instrument in the meridian direction being the same as that of the weather satellite's on orbit we can measure the solar irradiance when the sun scan over the field of view of the absolute radiometers to simulate the onboard state. And we have operated the measurement with the prototype of STIM. The SIAR-1 is traceable to WRR and serves as a transfer standard. So simultaneous comparison measurements between SIAR-1 and each of the three wide view absolute radiometers are measured to provide calibration corrections to the instrument. And we have a further study at the influence of stray light to the measurement results. This paper presents the method of simulation experiment and calibration for solar irradiance measurement with Solar Total Irradiance Monitor on board.

The full hemisphere integrating measurement of the reflectance of black cavity (EI CONFERENCE) 会议论文 OAI收割
ICO20: Illumination, Radiation, and Color Technologies, August 21, 2005 - August 26, 2005, Changchun, China
作者: Wang Y.; Yu B.; Wang Y.; Wang Y.; Wang Y.

收藏 | 浏览/下载：18/0 | 提交时间：2013/03/25

The conical black cavities are used in the Solar Irradiance Absolute Radiometers (SIARs) of the solar constant monitor aboard on the SZ spaceship and of the Solar Total Irradiance Monitor (STIM) aboard on sun-synchronous polar orbit weather satellites. A low reflectance measurement instrument which is used for making the integrating measurement on the reflectance of the conical black cavity in a high precision within the full hemisphere (include the entrance of the Ulbrichtsphere) has been constructed. The characteristic of the instrument is the employment of a semi-transparent mirror which is mounted in an inclination angle of 45 degrees in front of the entrance of the Ulbrichtsphere. The incident beam is reflected to the black cavity or white board by the semi-transparent mirror. A portion of those which is made diffused reflection through the black cavity or white board is measured by the detector located in the side face of the Ulbrichtsphere and the other portion which is reflected to the entrance is measured by the other detector after passing through the semi-transparent mirror and then being focused on by an ellipsoidal mirror. The two measurement data are added up to get the integrating reflectance within full hemisphere. The presentation and verification on the measurement result of the reflectance of the black cavity and its precision are described in this article. The absolute accuracy can reach 0.012%.