Topic
Longitude
About: Longitude is a research topic. Over the lifetime, 2260 publications have been published within this topic receiving 54988 citations. The topic is also known as: angle of longitude.
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TL;DR: For the area bounded by 0-35 °S latitude and 105 °E-105 °W longitude, a significant increase of tropical cyclone frequency occurred about 1954-55 and this regime persisted throughout the 1960s and 1970s.
Abstract: For the area bounded by 0–35 °S latitude and 105 °E–105 °W longitude a significant increase of tropical cyclone frequency occurred about 1954–55 and this regime persisted throughout the 1960s and 1970s. Probably this frequency increase was accompanied by an increase of cyclonic storm intensity. It was related to an atmospheric pressure regime change over Australasia which commenced in early 1954.
17 citations
TL;DR: In this article, it is shown that the spots seem not to be randomly distributed on the solar surface but rather occur at an increased rate at distances of 180° of each other on the same hemisphere while northern and southern hemispheres are independent.
Abstract: It is well known to the observer of sunspots that the spots seem not to be randomly distributed on the solar surface but rather occur at an increased rate at distances of 180° of each other on the same hemisphere while northern and southern hemispheres are independent. The following investigation - based on observational data of rotations No. 1457–1568 (1962–1970) shows four main results:
17 citations
TL;DR: In this paper, the longitudinal distribution of sunspot activity in 1917-1995 was studied using vector sums of sunspots of one solar rotation, whose amplitude characterizes the size of longitudinal asymmetry and whose phase describes the location of the momentarily dominating longitude.
Abstract: We study the longitudinal distribution of sunspot activity in 1917–1995 using vector sums of sunspot areas. The vector sum of sunspots of one solar rotation gives a total vector whose amplitude characterizes the size of longitudinal asymmetry and whose phase describes the location of the momentarily dominating longitude. We find that when the phase distributions are calculated separately for the ascending phase and maximum (AM) on the one hand and for the declining phase and minimum (DM) on the other hand, they behave differently and depict broad maxima around roughly opposite longitudes. While the maximum of the phase distribution for the AM period is found around the Carrington longitude of 180°, the maximum for the DM period is at the longitude of about 0°. This difference can be seen in both solar hemispheres, but it is more pronounced in the southern hemisphere where the phase distribution has a particularly clear pattern. No other division of data into two intervals leads to similar systematic differences.
17 citations
University of the Basque Country1, California Institute of Technology2, University of Oxford3, University of California, Berkeley4, Space Science Institute5, Goddard Space Flight Center6, Search for extraterrestrial intelligence7, Centre national de la recherche scientifique8, Spanish National Research Council9, University of La Laguna10, INAF11, Boston University12, University of California, Los Angeles13, University of Hawaii14, University of North Dakota15, American Museum of Natural History16, Massachusetts Institute of Technology17, Lowell Observatory18, University of Tennessee19, Johns Hopkins University20, Northern Arizona University21, University of Toledo22, University of California, San Diego23, University of Central Florida24, Tohoku University25, University of Southern Maine26, Glendale Community College27, Lawrence Livermore National Laboratory28
TL;DR: In this paper, the authors studied the long-term evolution of the cloud of aerosols produced in the atmosphere of Jupiter by the impact of an object on 19 July 2009 and found evidence for discrete localized meridional motions with speeds of 1-2 m/s.
17 citations
Patent•
01 Aug 2011TL;DR: In this paper, the authors present methods and systems for compressing location data of a radio for over-the-air transmission, which includes obtaining raw latitude and raw longitude coordinates reflecting a current location of the client device.
Abstract: Disclosed are methods and systems for compressing location data of a radio for over-the-air transmission. A method includes obtaining raw latitude and raw longitude coordinates reflecting a current location of the client device, the raw latitude coordinate represented by x number of bits and the raw longitude coordinate represented by y number of bits. The raw latitude coordinate is truncated by removing n number of most significant bits from the raw latitude coordinate to create a compressed latitude coordinate. The raw longitude coordinate is truncated by removing m number of most significant bits from the raw longitude coordinate to create a compressed longitude coordinate, where m varies as a function of the value of the raw latitude coordinate. The compressed longitude and compressed latitude coordinates are then transmitted to another network device for decompression and use as an indication of the client device's absolute location.
17 citations