The purpose of this paper is to study the optimal scale factor on the central meridian in order to minimize distortions of the 2掳Transverse Mercator map projection in TWD97. The optimal scale factor is first derived according to the Airy optimal theory of distortions. Next, the influences of...
下列为ArcGIS中某坐标系信息,该坐标系采用( )投影? Xian_1980_3_Degree_GK_Zone_39 投影:Gauss_Kruger False_Easting:39500000.000000 False_Northing:0.000000 Central_Meridian:108.000000 Scale_Factor:1.000000 Latitude_Of_Origin:0.000000 线性单位:Meter GCS_Xian_1980 基准面:D_Xian_1980A.墨卡托投影B.兰勃特...
In the absence of magnetic reconnection at the magnetopause, magnetic field lines in the magnetosheath and magnetosphere have no interconnection. Magnetosheath field lines ultimately trace back to the Sun and are considered “solar wind” field lines, with no connection with the Earth’s ionosphere....
Database(dataset) composition The dataset consists of 1 163 digital maps at scale of 1∶200 000; and each of the digital geological map (i.e. a map-sheet) contains the following files: a map-sheet grid data file, all-factor vectored geological map data files, MapGIS graphic layers data...
(Fig.5A, green). Confirming this observation, deviation from radial was linearly correlated with angular distance from the closest meridian (r = 0.141,p < 10−38). However, voxel-wise SNR is a potential limiting factor in this analysis, since voxel-wise SNR (as indexed by pRFR...
possible strain and paracrystallinity, as discussed for a similar case elsewhere52. The instrumental factor in peak broadening was negligible (see Fig.S2in the Supplementary Materials). The apparent crystal size was further represented as the geometric mean of the respective components along the two ...
(about a factor 2) increase of plasma pressure ahead of the dipolarization front near its stopping point (Yang et al.2011; Birn and Hesse2013), which impacts on the pressure distribution across the magnetotail as well as the supporting field-aligned currents (Shiokawa et al.1998). Supporting...
This study adopted the amplification factor (ratio of response spectra between soil and outcropping rock) of rock types to understand the site classification map. As this study implemented the Vs30 information at bedrock level, PGA was esti- mated as an earthquake hazard. For moderate earthquakes,...
The azimuthal mapping factor (the ratio between the magnetosphere and ionosphere azimuthal separations of two adjacent field lines) is 34 and is used to give the magnetotail size in the bottom of Fig. 4a. The localized currents have a typical magnetotail dawn–dusk size of ~ 3.2 RE, ...
Only SC and CC, belonging to two facets, emerged in the same factor; so did VOC and SU. SC and CC were the facets of the SP domain, while VOC and SU belonged to the PFNE domain. These results showed that the constructs of facets were coherent with structures of the HSTCM domains....