Results 21 to 30 of about 41,183 (323)

Is the geopotential directly measurable [PDF]

open access: yesGeodetski Glasnik, 2016
It has been pointed out by the great Swedish geodesist Arne Bjerhammar and others around1985 that it is possible to replace the classical method of spirit leveling for determining differences of the geopotential by a much more direct and elegant method ...
Helmut Moritz
doaj   +1 more source

The Connections between the Establishment and Maintenance of Ural Blockings in Winter and Intra-seasonal Oscillation of Geopotential Height

open access: yesGaoyuan qixiang, 2023
The Ural blocking high (UB) in winter is an important influence system leading to widespread cold snap in China.Exploring exploring the connections between its establishment and maintenance processes and intra-seasonal oscillations of geopotential height
Binyu XU, Suxiang YAO, Qingfei SUN
doaj   +1 more source

Global Glacial Isostatic Adjustment Constrained by GPS Measurements: Spherical Harmonic Analyses of Uplifts and Geopotential Variations

open access: yesRemote Sensing, 2020
In addition to studies of sea level change and mantle rheology, reliable Glacial Isostatic Adjustment (GIA) models are necessary as a background model to correct the widely used Gravity Recovery and Climate Experiment (GRACE) monthly gravity solutions to
Yan Zhou   +5 more
doaj   +1 more source

A Southern Hemispheric influence on the North Atlantic through a shallow atmospheric circulation response [PDF]

open access: yes, 2017
Previous research has discussed the importance of meridional migrations of the North Atlantic Subtropical High (NASH) on U.S. precipitation patterns, but the mechanisms that control these meridionial migrations are virtually unknown.
Bowerman, Adam R.
core   +1 more source

Analysis of a Relative Offset between the North American and the Global Vertical Datum in Gravity Potential Space

open access: yesRemote Sensing, 2023
The accurate estimation of the zero-height geopotential level in a local vertical datum (LVD) is critical for linking traditional height reference systems to a global height system.
Dongmei Guo, Zhixin Xue
doaj   +1 more source

Can Machines Learn to Predict Weather? Using Deep Learning to Predict Gridded 500‐hPa Geopotential Height From Historical Weather Data

open access: yesJournal of Advances in Modeling Earth Systems, 2019
We develop elementary weather prediction models using deep convolutional neural networks (CNNs) trained on past weather data to forecast one or two fundamental meteorological fields on a Northern Hemisphere grid with no explicit knowledge about physical ...
Jonathan A. Weyn, D. Durran, R. Caruana
semanticscholar   +1 more source

Comparison of Current Gravity Estimation and Determination Models [PDF]

open access: yes, 2018
This paper will discuss the history of gravity estimation and determination models while analyzing methods that are in development. Some fundamental methods for calculating the gravity field include spherical harmonics solutions, local weighted ...
Hillman, Kyle
core   +1 more source

Determination of a high spatial resolution geopotential model using atomic clock comparisons [PDF]

open access: yesJournal of Geodesy, 2016
Recent technological advances in optical atomic clocks are opening new perspectives for the direct determination of geopotential differences between any two points at a centimeter-level accuracy in geoid height.
G. Lion   +5 more
semanticscholar   +1 more source

A Comparison of Two Shallow Water Models with Non-Conforming Adaptive Grids: classical tests [PDF]

open access: yes, 2007
In an effort to study the applicability of adaptive mesh refinement (AMR) techniques to atmospheric models an interpolation-based spectral element shallow water model on a cubed-sphere grid is compared to a block-structured finite volume method in ...
Amik St-Cyr   +65 more
core   +2 more sources

Teleconnections in the Geopotential Height Field during the Northern Hemisphere Winter

open access: yes, 1981
Contemporaneous correlations between geopotential heights on a given pressure surface at widely separated points on earth, referred to as teleconnections in this paper, are studied in an attempt to identify and document recurrent spatial patterns which ...
J. Wallace, D. Gutzler
semanticscholar   +1 more source

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