Results 11 to 20 of about 41,183 (323)

Unifying the Regional Height System Using Optic-Fiber Clock Network: A Simulation Test for Southeast Asia

open access: yesIEEE Access, 2023
Orthometric height datum systems are critical in the geodetic community. Nonetheless, individual nations or local regions maintain their distinct height systems.
Anh The Hoang, Ziyu Shen, Wen-Bin Shen
doaj   +1 more source

Measuring Height Difference Using Two-Way Satellite Time and Frequency Transfer

open access: yesRemote Sensing, 2022
According to general relativity theory (GRT), the clock at a position with lower geopotential ticks slower than an identical one at a position with higher geopotential.
Peng Cheng   +5 more
doaj   +1 more source

Persistent positive anomalies in geopotential heights promote wildfires in western North America

open access: yesJournal of Climate, 2022
During summer, persistent positive anomalies (PPAs) of mid-tropospheric geopotential heights in North America are often associated with extreme weather, including heatwaves.
Aseem R. Sharma   +3 more
semanticscholar   +1 more source

Test of Determining Geopotential Difference between Two Sites at Wuhan Based on Optical Clocks’ Frequency Comparisons

open access: yesRemote Sensing, 2022
Applications of optical clocks in physical geodesy for determining geopotential are of increasing interest to scientists as the accuracy of optical clocks improves and the clock size becomes more and more compact.
Anh The Hoang   +4 more
doaj   +1 more source

Euroregions in the Podrinje region [PDF]

open access: yesGlasnik Srpskog Geografskog Društva, 2008
Regionalization is a contemporary conception of a development within a society. We are interested in cooperation at regions whose area is intersected by the national border. One of those borders is the Drina River that in different periods had changeable
Tošić Branka, Todorović Marina
doaj   +1 more source

Identification Humidity Resources and Course of Super Heavy Precipitation In Bushehr Province [PDF]

open access: yesجغرافیا و توسعه, 2009
In this paper, humidity advection maps of sea level and 850 hpa and geopotential height of sea level pressure and 500 hpa level were drawn and studied for 5 types of above 100 mm precipitation in the Bushehr province.
gavad khoshal   +2 more
doaj   +1 more source

WINTER EXTREME EVENTS – ROMANIAN CARPATHIAN AVALANCHES [PDF]

open access: yesAerul şi Apa: Componente ale Mediului, 2017
The study presents a statistics of avalanche cases recorded in Romanian Carpathians over the years, most of them since February 2004, when the National Meteorological Administration program for snow and avalanches started, but also from Mountain Rescue ...
A. PAŞOL, C. GRECU, U. RECKERTH
doaj   +1 more source

Estimation of Geopotential Value W0 for the Geoid and Local Vertical Datum Parameters

open access: yesRemote Sensing, 2023
Unification of the global vertical datum has been a key problem to be solved for geodesy over a long period, and the main challenge for unifying the global vertical datum system is to determine the geopotential value W0 of the geoid and to calculate the ...
Xinyu Liu   +4 more
doaj   +1 more source

Long term variations of atmospheric synoptic variability: A study based on radiosonde data from Lindenberg (Germany)

open access: yesMeteorologische Zeitschrift, 1995
In an extension of a study by Fraedrich et al. (1979a, b) we show how the atmospheric processes generating a local climate state can vary from year to year and between two decades in Eastern Germany - an area which is frequently visited by mature ...
Martin Göber, Andreas Hense
doaj   +2 more sources

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