Results 11 to 20 of about 100,674 (267)

Velocity and Sediment [PDF]

Science, 1885
n ...
openaire   +5 more sources

FIRST EVIDENCE OF COLOR PATTERNS ON CONCHS OF THE LOWER MOSCOVIAN (MIDDLE PENNSYLVANIAN) COILED NAUTILOIDS FROM THE DONETS BASIN, UKRAINE

Rivista Italiana di Paleontologia e Stratigrafia, 2023
New finds of well-preserved remains of coiled nautiloids from lower Moscovian sediments (Kamenskaya Formation) of the Donets Basin (eastern Ukraine) allowed to describe the color pattern on the conch surface of species of the genera Parametacoceras ...
Vitaly Dernov
doaj   +1 more source

A Classification Scheme for Sediments and Habitats on Exposed Intertidal Flats with Multi-Frequency Polarimetric SAR

Remote Sensing, 2021
We developed an extension of a previously proposed classification scheme that is based upon Freeman–Durden and Cloude–Pottier decompositions of polarimetric Synthetic Aperture Radar (SAR) data, along with a Double-Bounce Eigenvalue Relative Difference ...
Wensheng Wang, Martin Gade, Kerstin Stelzer, Jörn Kohlus, Xinyu Zhao, Kun Fu   +5 more
doaj   +1 more source

Analysis of orientation errors in triaxial fluxgate sensors and research on their calibration methods [PDF]

Geoscientific Instrumentation, Methods and Data Systems
Three-axis magnetic flux gate sensors are widely used in Chinese geomagnetic observatories, but due to their directional errors it is necessary to study error correction methods to improve measurement accuracy.
X. Hu, X. Hu, S. He, S. He, X. Zhao, Q. Tian, Q. Tian, A. Mamatemin, P. Guo, P. Guo, G. Chang, G. Chang   +11 more
doaj   +1 more source

Overturned Eocene – Lower Pliocene alluvial stratum on the southern coast of Lake Baikal and its neotectonic significance

Геодинамика и тектонофизика, 2021
The study is focused on a section of sediments exposed on the right bank of Mishikha River, Russia. These sediments have a wide range of ages, from the Eocene to the Lower Pliocene.
A. Al Hamoud, S. V. Rasskazov, I. S. Chuvashova, T. F. Tregub, M. N. Rubtsova, V. L. Kolomiyets, R. Ts. Budaev, A. Hassan, М. А. Volkov   +8 more
doaj   +1 more source

Diversity and abundance of diatoms (Bacillariophyceae) in sediments of the south coast of Iran [PDF]

بوم‌شناسی آبزیان, 2018
In this stud, the diversity and abundance of benthic diatoms were evaluated in 9 stations located in Persian Gulf (Sirik) and Oman Sea (Gwatar, Abshirinkon) in winter and spring of 1394 -1395.
Gilan Attaran Fariman, Mehran Loghmani, Aslam Mirkazehi   +2 more
doaj  

UNDERWATER CANYONS OF THE SOUTHWESTERN OUTSKIRTS OF SOUTHERN BAIKAL AS PRESUMABLE TRANSITERS OF TECHNOGENIC MATERIALS TO THE ABYSSAL SURFACE

Геодинамика и тектонофизика, 2023
Numerous publications by domestic and foreign authors deal with a significant role of underwater canyons in transit of loose material from the littoral to the abyssal surfaces of the seas. Lake Baikal fully corresponds in its hydrodynamic and bathymetric
E. E. Kononov, N. A. Gubin
doaj   +1 more source

Quantitative study on the characteristics of dynamic vehicle interference to geomagnetic field

地震科学进展
In recent years, geomagnetic observation stations have been subjected to more and more serious interference by HVDC transmission, subway, vehicles, etc.
Qin Tian, Xiujuan Hu, Guoping Chang, Shaopeng He, Pengkun Guo   +4 more
doaj   +1 more source

Analysis of temperature variation characteristics in relative recording rooms of geomagnetic reference stations

地震科学进展
The variation of temperature in the geomagnetic relative recording room can cause deviations in the relative recording data, thereby affecting the geomagnetic baseline value.
Shaopeng He, Xiujuan Hu, Guoping Chang, Pengkun Guo   +3 more
doaj   +1 more source

Prediction of Earthquake Death Toll Based on Principal Component Analysis, Improved Whale Optimization Algorithm, and Extreme Gradient Boosting

Applied Sciences
Earthquakes, as one of the most destructive natural disasters, often cause significant casualties and severe economic losses. Accurate prediction of earthquake fatalities is of great importance for pre-disaster prevention and mitigation planning, as well
Chenhui Wang, Xiaotao Zhang, Xiaoshan Wang, Guoping Chang   +3 more
doaj   +1 more source