Results 11 to 20 of about 2,535 (244)

Global Geopotential Models assessment in Ecuador based on geoid heights and geopotential values

open access: yesJournal of Geodetic Science, 2023
Since the 1960s, the analysis of disturbed satellite orbits to infer Earth’s gravity field functionals has been an important element in determining the Earth’s gravitational field. The long wavelengths of the gravitational field are recovered through the
Carrión José   +3 more
doaj   +2 more sources

Asymmetric Geopotential Height Fluctuations from Symmetric Winds [PDF]

open access: bronzeJournal of the Atmospheric Sciences, 1996
Abstract As a characterization of the variability of observed geopotential height fluctuations, their probability density function (PDF) and its skewness are studied in the global domain for winter and summer. The PDF of the geopotential, Φ, is skewed toward low anomalies at midiatitudes and toward high anomalies in polar and tropical regions.
Mark Holzer
openalex   +2 more sources

Chronometric Height: a relativistic height definition by generalizing geopotential numbers

open access: gold, 2021
<p>A height definition in terms of geopotential numbers offers a variety of advantages. Moreover, from the theoretical point of view, such a definition is considered more fundamental. </p><p>We know, however, that relativistic gravity (here General Relativity) requires to reformulate the basic ...
Dennis Philipp
openalex   +2 more sources

Rising geopotential height under global warming

open access: yesClimate Dynamics, 2023
Abstract Geopotential height (H) is a widely used metric for atmospheric circulation. H has been reported to be rising under global warming, but the amplitude and mechanism of this rise are not clear. Based on reanalysis datasets and climate models participating in CMIP6, this study quantitatively evaluates the sensitivity of H to global mean ...
Chao He   +8 more
openaire   +2 more sources

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

Forecast Assessment of CMA-GFS on the Meteorological Elements in the Northeast Hemisphere

open access: yesGaoyuan qixiang, 2023
Based on the daily forecast data initialized at 20:00 (Beijing time) of the CMA global forecast system (CMA-GFS) during the period from October, 2019 to December, 2020, the forecasting quality of the upper air meteorological elements in the Northeast ...
Chunjuan QI, Liujie PAN
doaj   +1 more source

CORRELATIONS BETWEEN AREAL PRECIPITATION AND 850-MILLIBAR GEOPOTENTIAL HEIGHT [PDF]

open access: bronzeMonthly Weather Review, 1971
Abstract Geopotential heights of the 850-mb surface at 499 grid points over one-half of the Northern Hemisphere, extending from 10°E westward to 170°W, were correlated with daily precipitation observations over California and an area in the Eastern United States on 401 January and February days. Correlations as high as 0.69 were obtained between 850-mb
Iver A. Lund
openalex   +2 more sources

Linear Trends in Northern Hemisphere Tropospheric Geopotential Height and Temperature Patterns [PDF]

open access: bronzeJournal of the Atmospheric Sciences, 1982
Gridded National Meteorological Center data for 500 mb geopotential height and 300-500 mb and 500-700 mb thickness for the period 1951-1978 are subjected to linear trend analyses. The analyses are carried out for each calendar month. Significant geographical and seasonal distributions of cooling and warming patterns are found.
Elmar R. Reiter, Daniel R. Westhoff
openalex   +2 more sources

Eigen microstates and their evolution of global ozone at different geopotential heights [PDF]

open access: yesChaos: An Interdisciplinary Journal of Nonlinear Science, 2021
Studies on stratospheric ozone have attracted much attention due to its serious impacts on climate changes and its important role as a tracer of Earth’s global circulation. Tropospheric ozone as a main atmospheric pollutant damages human health as well as the growth of vegetation.
Xiaojie Chen   +6 more
openaire   +3 more sources

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

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