Features of atmospheric disturbances in temperate latitudes before strong earthquakes (M> 7) according to satellite measurements

An ATOVS and MERRA data archive containing temperature values at isobaric levels from 1000 to 50 hPa was formed to study the atmospheric effects observed over the foci of two strong earthquakes with magnitudes M = 7,3. The first seismic event was recorded on August 19, 1992 in the northern Tien Shan and the second on November 12, 2017 in the border areas of the Zagros folded mountain belt. According to USGS intense aftershock activity in these regions began with these seismic events. Using correlation and spectral analysis we studied the vertical profiles of temperature and pressure in a disturbed atmosphere over seismically active regions. The modified anomaly index was calculated at isobaric levels from 500 to 50 hPa and on its basis the registered temperature anomalies were investigated.

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Atmospheric temperature coherent variations effects, preceding strong earthquakes

E3S Web of Conferences ◽

10.1051/e3sconf/202022303015 ◽

2020 ◽

Vol 223 ◽

pp. 03015

Author(s):

Leonid Sverdlik ◽

Sanjar Imashev

Keyword(s):

Seismic Event ◽

Atmospheric Temperature ◽

Tien Shan ◽

Abnormal Behavior ◽

Satellite Measurements ◽

Epicentral Area ◽

Strong Earthquakes ◽

Upper Troposphere ◽

Short Period ◽

Northern Tien Shan

We analyzed satellite measurements of temperature at upper troposphere/lower stratosphere (UTLS) levels separated by the tropopause above the epicentral area of a strong earthquake with a magnitude of M=7.3 in the Northern Tien-Shan (Kyrgyzstan) that took place on August 19, 1992. The developed algorithm and method of continuous wavelet transform allowed detecting of abnormal behavior, temporal, spatial and spectral coherence of short-period temperature variations, preceding the seismic event. The results show that the spatial structure and dynamics of temperature anomalies in the area of UTLS have a sufficiently stable relation to seismic activity.

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Anomalous atmospheric temperature perturbations over seismically active regions of Europe according to satellite measurements

E3S Web of Conferences ◽

10.1051/e3sconf/20197502004 ◽

2019 ◽

Vol 75 ◽

pp. 02004

Author(s):

Leonid Sverdlik ◽

Sanjar Imashev ◽

Tatiana Yamskikh

Keyword(s):

Time Series ◽

Satellite Data ◽

Mediterranean Region ◽

Seismic Event ◽

Active Regions ◽

Atmospheric Temperature ◽

Satellite Measurements ◽

Anomalous Temperature ◽

Strong Earthquakes ◽

Analysis Of Time Series

An algorithm for defining temperature anomalies and the results of diagnostic studies, based on a retrospective analysis of time series of satellite data in troposphere and stratosphere over the epicenters of strong earthquakes with magnitude M > 6.0, occurring in seismically active Mediterranean region of Europe are presented. It was found out that in all cases anomalous temperature disturbances were registered 1-10 days before the main seismic event.

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Grouping of strong earthquakes in Central Asia: New possibilities of medium-range forecast of seismic events in the northern Tien Shan region

Doklady Earth Sciences ◽

10.1134/s1028334x06080356 ◽

2006 ◽

Vol 411 (1) ◽

pp. 1324-1326 ◽

Cited By ~ 2

Author(s):

Yu. F. Kopnichev ◽

I. N. Sokolova

Keyword(s):

Central Asia ◽

Tien Shan ◽

Seismic Events ◽

Strong Earthquakes ◽

Medium Range Forecast ◽

Medium Range ◽

Northern Tien Shan

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The capabilities of analyzing the seismo-electromagnetic satellite CSES-01 data for monitoring of seismic activity of the Northern Tien Shan

IOP Conference Series Earth and Environmental Science ◽

10.1088/1755-1315/929/1/012017 ◽

2021 ◽

Vol 929 (1) ◽

pp. 012017

Author(s):

K S Nepeina

Keyword(s):

Space Weather ◽

Tien Shan ◽

Measuring Instruments ◽

Research Station ◽

Strong Earthquakes ◽

Magnetotelluric Soundings ◽

Future Technologies ◽

The Relationship ◽

Random Nature ◽

Northern Tien Shan

Abstract The relationship between space weather and earthquakes occurring in seismically active areas with the seismo-electromagnetic satellite CSES-01 data are observed. The study assumes the presence of possible ionospheric precursors of strong earthquakes. The sets of measuring instruments of the satellite and data are considered. Subsequently, to prove the non-random nature of the space weather effects, the results of ground-based geomagnetic or electromagnetic observations should be used, for example, magnetotelluric soundings (MTS). Stationary and regime points of the MTS network of the Research Station RAS in Bishkek (RS RAS) are suitable for these purposes in the Northern Tien Shan. The MTS data are presented in the form of hourly frequency-time series with system rotation from 0° to 180°. To obtain information on earthquakes, it is proposed to use data from the NEIC or ISC seismic catalog, since they aggregate data from regional catalogs, including the KNET seismological network maintained by the RS RAS. It is concluded that it is necessary to select the CSES-01 trajectories and times of flight over the territory of Kyrgyzstan and download the electric field detector (EFD) data. The results of comparing satellite and ground-based observations can be used in future technologies for short-term earthquake prediction.

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THE STRESS STATE OF THE NORTHERN TIEN SHAN CRUST BASED ON THE KNET SEISMIC NETWORK DATA

Геология и геофизика ◽

10.15372/gig20160303 ◽

2016 ◽

Vol 57 (3) ◽

Keyword(s):

Stress State ◽

Seismic Network ◽

Tien Shan ◽

Network Data ◽

Northern Tien Shan

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High Mountain Asian glacier response to climate revealed by multi-temporal satellite observations since the 1960s

Nature Communications ◽

10.1038/s41467-021-24180-y ◽

2021 ◽

Vol 12 (1) ◽

Author(s):

Atanu Bhattacharya ◽

Tobias Bolch ◽

Kriti Mukherjee ◽

Owen King ◽

Brian Menounos ◽

...

Keyword(s):

Mass Loss ◽

River Flow ◽

Tien Shan ◽

High Mountain ◽

Glacier Mass Balance ◽

Temperature And Precipitation ◽

Multi Temporal ◽

The 1960S ◽

Northern Tien Shan

AbstractKnowledge about the long-term response of High Mountain Asian glaciers to climatic variations is paramount because of their important role in sustaining Asian river flow. Here, a satellite-based time series of glacier mass balance for seven climatically different regions across High Mountain Asia since the 1960s shows that glacier mass loss rates have persistently increased at most sites. Regional glacier mass budgets ranged from −0.40 ± 0.07 m w.e.a−1 in Central and Northern Tien Shan to −0.06 ± 0.07 m w.e.a−1 in Eastern Pamir, with considerable temporal and spatial variability. Highest rates of mass loss occurred in Central Himalaya and Northern Tien Shan after 2015 and even in regions where glaciers were previously in balance with climate, such as Eastern Pamir, mass losses prevailed in recent years. An increase in summer temperature explains the long-term trend in mass loss and now appears to drive mass loss even in regions formerly sensitive to both temperature and precipitation.

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