Constrained resistivity inversion using seismic data     

J. H. Saunders  J. V. Herwanger  C. C. Pain  M. H. Worthington  C. R. E. de Oliveira 《Geophysical Journal International》2005,160(3):785-796

  相似文献   

The relationship between the spectral function and the underlying conductivity structure in 1-D magnetotellurics     

Peter Weidelt 《Geophysical Journal International》2005,161(3):566-590

  相似文献   

Geoelectric crustal structures off the SW border of the São Francisco craton, central Brazil, as inferred from a magnetotelluric survey     

Maurício S. Bologna  Antonio L. Padilha  Ícaro Vitorello 《Geophysical Journal International》2005,162(2):357-370

  相似文献   

Comment on 'Electrical conductivity and crustal structure beneath the central Hellenides around the Gulf of Corinth (Greece) and their relationship with the seismotectonics' by Pham et al.     

I. I. Rokityansky  P. Varotsos  N. Sarlis 《Geophysical Journal International》2005,162(2):332-336

  相似文献   

The high-resolution gravimetric geoid of Iberia: IGG2005   总被引：2，自引：0，他引：2  

V. Corchete  M. Chourak  D. Khattach 《Geophysical Journal International》2005,162(3):676-684

  相似文献   

Decomposition analysis of the BEAR magnetotelluric data: implications for the upper mantle conductivity in the Fennoscandian Shield   总被引：1，自引：0，他引：1  

I. Lahti  T. Korja  P. Kaikkonen  K. Vaittinen  BEAR Working Group 《Geophysical Journal International》2005,163(3):900-914

  相似文献   

21世纪我国面临的测绘基准面问题   总被引：4，自引：0，他引：4  

殷晓冬  田光耀 《测绘工程》2000,9(2):26-31

大地水准面与深度基准面是测绘垂直基准面的主要因素。文中探讨了我国测绘垂直基准面的现状及其存在的问题 ,提出了改进测绘垂直基准面之拙见 ,以便在下一个世纪提到议事日程与同仁商榷。  相似文献   

Studying air pollution with kitt peak solar flux atlas — analysis method and results of observation     

Jianguo Niu  Hiroaki Kuze  Nobuo Takeuchi 《大气科学进展》2000,17(3):363-374

For the measurement of atmospheric NO2 vertical column density (VCD), Kitt Peak Solar Flux Atlas can be substituted as an extraterrestrial solar radiation. Compared with differential analysis method, the Taylor expansion of integrated transfer equation underestimates the VCD. This underestimation is as large as 35% when the amount of NO2 is 1 × 1017 cm－2 and observation is conducted with an air mass factor of 10. Even when the VCD is 2 × 1016 cm－2 and the air mass factor is 4, the relative error of the retrieved VCD is still no less than 3%. If the observation is restricted under the small air mass factor condition (≤4), with Kitt Peak Solar spectrum as an extraterrestrial solar radiation, only an atmospheric layer of 2 km thick from ground can be studied, which will make the absorption too weak to be detected by normal instruments.The VCD in winter Tokyo area was observed and analyzed by differential method, which shows a good precision even when the absorption is as low as 3%. The largest average VCD was about 1.3 × 1017 cm－2, and the lowest was about 1.3 × 1016 cm－2. The trend of its variation was almost the same as the ground level observation by Saltzman reagent method.  相似文献   

副热带高压研究回顾及对几个基本问题的再认识   总被引：44，自引：3，他引：41  

刘屹岷  吴国雄 《气象学报》2000,58(4):500-512

文中在回顾有关副热带高压研究的基础上 ,指出传统的观念在东太平洋副热带高压和西太平洋副热带高压的关系、下沉运动和副热带高压的形成、热带加热异常与副热带高压异常的关系、副热带高压与其周边系统的关系等问题上存在一定的局限。并根据近期的研究成果对上述问题给出新的认识。最后文中展望了在副热带高压的研究中需进一步深入的几个方面 :不同纬度相互作用、青藏高原的作用、时间尺度 -内部动力过程和外界强迫的相对重要性、非线性过程和角动量平衡问题。  相似文献   

Studying Air Pollution with Kitt Peak Solar Flux Atlas—Analysis Method and Results of Observation     

Jianguo Niu  Hiroaki Kuze  Nobuo Takeuchi 《大气科学进展》2000,(3)

l.Introducti0nTwoflightsoftheSAGEIIIinstrumentwereplanedbeinglaunchedinJune2O00byRussianMeteor-3Mandin2002byInternationalSpaceStation(ISS).Itisexpectedthattheywouldofferinformationofalmostglobalcoverage.Theseinstrumentswillutilizetheselfcal-ibratingsolaroccultationtechniquetomeasureprofilesofaerosoIextinctionfrom0to4Okm,ozonefrom6to85km,nitrogendioxidefroml0to5Okm,andwatervaporfrom0to5Okm,andutilizelunaroccultationobservati0nstomonitorthekeynighttimesPecies,nitrogentrioxidefrom22to55k…  相似文献