نتایج جستجو برای: 60 northern latitude and 30
تعداد نتایج: 16953589 فیلتر نتایج به سال:
The intensity and/or extent of the northeastern Pacific Oxygen Minimum Zone (OMZ) varied in-phase with the Northern Hemisphere high latitude climate on millennial timescales during the last glacial period, indicating the occurrence of atmospheric and oceanic connections under glacial conditions. While millennial variability was reported for both the Greenland and the northern Atlantic Ocean dur...
A study of the interplanetary sector structure at heliographic latitudes up to 16øN is reported. The study is based on magnetic field measurements made on board Pioneer 11 as the spacecraft raveled along the post-Jupiter-encounter trajectory. Preliminary measurements are used to determine the dominant polarity of the interplanetary magnetic field during 43 successive solar rotations including P...
BACKGROUND Genetic susceptibility to multiple sclerosis (MS) has been recognised for many years. Considerable data exist from the northern hemisphere regarding the familial recurrence risks for MS, but there are few data for the southern hemisphere and regions at lower latitude such as Australia. To investigate the interaction between environmental and genetic causative factors in MS, the autho...
We present statistical results of traveling ionospheric disturbances (TIDs) with origin near the geomagnetic equator during storms that occurred within period 2010–2018. Based on storm criteria Kp > 4 and Dst ≤ −50 nT, we have analyzed total electron content perturbations derived from Global Navigational Satellite Systems observations a latitude range 40°S–60°N longitude ranges 20°–40°E 50°–70°...
[1] Monthly and seasonal stratospheric zonal-mean temperature trends arising from recent changes in stratospheric ozone and well-mixed greenhouse gases (WMGGs) are simulated using a general circulation model and compared with observed (1979–2000) trends. The combined effect of these gases yields statistically significant cooling trends over the entire globally averaged stratosphere in all month...
The area under study is located in northern Iran at 36° 47’ latitude and 50° 12' longitude. It is 15 km from southeastern Deylaman. Petrological study of the kaolin mother rock (Eocene age) under a microscope shows that the rock is vitric tuff with a rhyolitic combination containing falcated and embowed glass shards. The thickness of the layer is approximately 20 meters, formed unconformably on...
We present SuperDARN radar observations of the nightside high-latitude ionospheric flow during two 6hour intervals of quasi-steady northward interplanetary magnetic field (IMF). During both intervals (01:30–07:30 UT on 2 December and 21:00–03:00 UT on 14/15 December 1999), the solar wind and IMF remained relatively steady with Bz positive and By negative, such that the IMF clock angle was ∼−50 ...
A biogeochemical model of vegetation using observed climate data predicts the high northern latitude greening trend over the past two decades observed by satellites and a marked setback in this trend after the Mount Pinatubo volcano eruption in 1991. The observed trend toward earlier spring budburst and increased maximum leaf area is produced by the model as a consequence of biogeochemical vege...
The LuxTurrim5G project is built on integrating different types of sensors and equipment that have been integrated into light poles in order to build new data-driven services. One additional service could be harvest the waste heat produced electrical devices pole. In this research, we developed an intelligent model for transfer modeling 5G Smart Poles. input parameters used construct are latitu...
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