FIRST
COEFFICIENTS OF DECOMPOSITION BY SPHERICAL FUNCTIONS
OF
THE SURFACE ATMOSPHERIC PRESSURE
OF THE EUROPEAN RE-ANALYSIS
PROJECT (ERA5)
©
2020
Е.А. Spiridonov*,
A.V.
Desherevskii,
O.Yu. Vinogradova
Schmidt
Institute of Physics of the Earth, Russian Academy of Sciences,
Moscow, Russia
*e-mail:
sp287@mail.ru
Abstract.
According to the re-analysis of the ERA5 data, the time series of the
first coefficients (
,
,
,
,
,
и
)
of the decomposition of the surface atmospheric pressure into
spherical functions for 2000–2018 with a step of 1 hour are
calculated. By values of these coefficients are calculated the
average mass of the atmosphere, its seasonal changes and the loading
gravimetric effect due to these changes, as well as the vertical
loading displacements of the Earth's surface. The series of
coordinates of the geocenter motion as well as the excitation
functions of the atmospheric angular momentum have been obtained.
Keywords:
surface atmospheric pressure, re-analysis project ERA5, atmospheric
mass, atmospheric gravimetric loading effect, vertical load
displacements of the Earth's surface, geocenter motion, atmospheric
angular momentum (AAM), inverted barometer effect.
About
the authors
SPIRIDONOV
Evgeny Alexandrovich –
Schmidt Institute of Physics of the Earth, Russian Academy of
Sciences. Russia, 123242,
Moscow, Bolshaya Grusinskaya st., 10-1. E-mail: sp287@mail.ru
DESHEREVSKII
Alexey Vladimirovich –
Schmidt
Institute of Physics of the Earth, Russian Academy of Sciences.
Russia, 123242,
Moscow, Bolshaya Grusinskaya st., 10-1. E-mail:
adeshere@ifz.ru
VINOGRADOVA
Olga Yuryevna
–
Schmidt
Institute of Physics of the Earth, Russian Academy of Sciences.
Russia, 123242,
Moscow, Bolshaya Grusinskaya st., 10-1. E-mail:
sp295@mail.ru
Cite
this article as:
Spiridonov Е.А.,
Desherevskii A.V.,
Vinogradova O.Yu. First
coefficients of decomposition by spherical functions of the surface
atmospheric pressure of the European re-analysis project (ERA5),
Geofizicheskie Protsessy i Biosfera
(Geophysical Processes and Biosphere), 2020, vol. 19, no. 2, pp.
92–106 (in Russian). https://doi.org/10.21455/gpb2020.2-7
English
version:
Izvestiya,
Atmospheric and Oceanic Physics,
2020, vol. 56, iss. 8. ISSN: 0001-4338 (Print), 1555-628X (Online).
https://link.springer.com/journal/volumesAndIssues/11485