Periodicity of sunspot activity in the modern solar cycles

来源 :中国科学通报：英文版 | 被引量 : 0次 | 上传用户：dingzhiyoulan

【摘要】

：

Sunspot number, sunspot area and sunspot unit area are usually used to show sunspot activity. In this paper,periodicity of sunspot activity of modern solar cycl

【作者】

：

LIKejun SUTongwei LIANGHongfei

【机构】

：

NationalAstronomicalObservatories/YunnanObservatory

【出处】

：

中国科学通报：英文版

【发表日期】

：

2004年21期

【关键词】

：

太阳黑子数太阳活动周期太阳黑子区域能谱 sunspot number sunspot area solar activity cycle perio

下载到本地 , 更方便阅读

下载此文赞助VIP

声明 : 本文档内容版权归属内容提供方 , 如果您对本文有版权争议 , 可与客服联系进行内容授权或下架

论文部分内容阅读

Sunspot number, sunspot area and sunspot unit area are usually used to show sunspot activity. In this paper,periodicity of sunspot activity of modern solar cycles has been investigated through analyzing the monthly mean values of the three indices in the

其他文献

Special IR properties of palladium nanoparticles and their aggregations in CO molecular probe infrar

Dispersed Pd nanoparticles (Pdn) have been synthesized by reducing H2PdCI4 with ethanol, and stabilized using poly(vinylpyrrolidone) (PVP). The Pdn is applied t

期刊

铅纳米粒子聚集一氧化碳吸附一氧化碳分子碳针红外光谱FTIRSPd nanoparticlesaggregationCO adsorptionsp

Internal solitons in the northern South China Sea from insitu observations

In this paper, we demonstrate the characteris-tics of strong internal solitons at the southern edge of Dong-sha Islands in the northern South China Sea (SCS) du

期刊

孤立波中国海洋观测非线性波温度传导率northern South China Sea internal solitons nonlinear in

SHRIMP zircon U-Pb geochronology of Indosinian granites in Hunan Province and its petrogenetic impli

The SHRIMP zircon U-Pb geochronology of three typically Indosinian granitic plutons with peraluminous and potassium-rich affinities (Tangshi ultraunit for Weish

期刊

锆石地球年代学花岗岩岩石学SHRIMP zircon U-Pb geochronology Indosinian granites Hunan

Panel-allocated defect SRRs effect in X-band LHMs

We experimentally investigated the defect effects of LHMs when panel-allocated defects SRRs are introduced. By measuring the X-band transmission through metamat

期刊

LHMs谐振传输曲线SRR周期性六角型阵列频率波导技术LHMs panel-allocated defect SRRs resonance.

A cylindrical rod ultrasonic motor with 1 mm diameter and its application in endoscopic OCT

A tiny ultrasonic motor was constructed by using a piezoelectric ceramic cylindrical rod as a vibration generator of the stator. The fabricated tiny motor has a

期刊

圆柱杆超声波电机摆动弯度内窥镜检查循环扫描ultrasonic motor cylindrical rod bending vibration

Origin of summer monsoon rainfall identified by δ^18O in precipitation

A negative correlation between δ18O in monsoon precipitation and f, the ratio of precipitable water in monsoon region to that in water source area, is hypothes

期刊

夏季季风氧同位素降雨量雷利模型monsoon stable isotopes origin of monsoon precipitation

Identification of encoding proteins related to SARS-CoV

By sampling I00 encoding proteins from SARS-coronavirus (SARS-CoV, NC 004718) and other six coronaviruses and selecting 23 variables through stepwise multiple r

期刊

SARS-COVSMRNCSARS-CoVcoronavirusmultiple linear regression (MLR)stepwise m

Regional difference of aridity/ humidity conditions change over China during the last thirty years

The meteorological data of 616 stations in China were used to calculate the potential evapotranspiration and aridity/humidity index by applying the modified FAO

期刊

土壤水分蒸发损失总量干旱现象湿度气候因素aridity/humidity conditions climate change regional di

Synthesis of nonstoichiometric M-type barium ferrite nanobelt by spark plasma sintering method

This study investigated the feasibility of ultrafast crystallization of M-type barium ferrite when the coprecipitation precursors in stoichiometric proportions

期刊

M型钡铁素体非化学计量等离子体烧结结晶化沉淀物M-type barium ferrite nanobelt non-stoichiometric

Construction of fine SNP haplotypes and haplotype blocks in 5 genes in the centromere of chromosome

Recent advances have shown that the majorityof the nucleotide variation in human genome is single nucleo-tide polymorphisms (SNPs). Using SNPs each chromosomeca

期刊

单倍体SNP基因组着丝点基因染色体15单核苷酸多态haplotypehaplotype-blockSNPgenomecentrome

Periodicity of sunspot activity in the modern solar cycles

其他学术论文