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百度试题 题目What is the longitude of the position? A. 048.40°W B. 048.40°E C. 048 °40′E D. 048 °40′W 相关知识点: 试题来源: 解析 D. 048 ° 40 ′ W 反馈 收藏
Longitude lines, or meridians, are imaginary vertical lines that run from the North Pole to the South Pole. They measure the distance east or west of theprime meridian, which is set at 0° longitude and passes through Greenwich, England. Unlike latitude lines, which are parallel, longitude li...
Longitudes are, therefore, imaginary circles that intersect the North and South Poles and the equator. Half of a longitudinal circle is known as ameridian. Meridians are perpendicular to every latitude. Unlike, latitudes, there is no obvious central longitude. However, in order to measure the po...
What is latitude and longitude? Latitude is used to mark the north-south position of a location on the Earth’s surface and ranges from 0 degrees at the equator to 90 degrees at the North and South Poles. There are 180 degrees of latitude and the distance between each degree of latitude...
Longitudes and the prime meridian are both used to define time zones. Greenwich Mean Time (GMT), also known as Coordinated Universal Time, is the standard time by which all other time zones are expressed -- for example: GMT + 0 = Time in Greenwich, U.K. ...
First, an auto-correlation Rη of a 322-km2 tile of ASTER topography η(λ, ϕ) (where λ is longitude and ϕ is latitude) is created using FFT (blue-red shaded fields in Supplementary Fig. S1f&n). The two largest modes are omitted so that any broad, non-dune slopes in the ...
UTC time changes 1 hour forward and backward corresponding to a 1-hour difference inmean solar timefor every 15 degrees east or west of the prime meridian (0°longitude) in Greenwich,London, United Kingdom. The offset is expressed as either UTC- or UTC+ and the number of hours and minute...
The prime meridian is the reference for all lines of longitude that divide the Earth's surface. The opposite meridian is the 180 degree line of longitude, which is 180 degrees both east and west of the prime meridian. It serves as the approximate basis f
Universal Time is asolar timestandard that reflects the average speed of the Earth's rotation. Using the prime meridian at 0°longitudeas a reference point, it shows the actual length of an average solar day on Earth, which is the time from one solar noon to the next. ...