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Water on/in Mars and the Moon
Springer Science and Business Media LLC - Tập 33 - Trang 1-6 - 2022
The speculation of an ancient ocean, river and lake on Mars, the observation of
geological features andthe findings of H2O on the Martian surface, and the
detection of a “water lake” beneath 1.5 km in Mars are all consistent with the
scenario of water envisaged earlier by Liu (Phys Earth Planet Inter 49: 142–167,
1987; Icarus 74: 98–107, 1988). Unless sealed in cavities, liquid water or naked
ice ...
Seismogenic structure beneath the northern Longitudinal Valley revealed by the 2018–2021 Hualien earthquake sequences and 3-D velocity model
Springer Science and Business Media LLC - Tập 33 - Trang 1-17 - 2022
This study uses the 3D crustal velocity model and the relocated earthquake
hypocenters, including the 2018–2021 earthquake sequences, to re-assess the
seismogenic structures at the northern Longitudinal Valley. Earthquake focal
mechanisms and relocated hypocenters from earthquake clusters suggest a gentle
west-dipping fault existing under the Longitudinal Valley and the Coastal Range.
Earthquake c...
COSMIC-2 soundings impacts on a RO-based NOAA microwave satellite data quality monitoring system
Springer Science and Business Media LLC - Tập 33 - Trang 1-25 - 2022
The Constellation Observing System for Meteorology, Ionosphere and
Climate-2/Formosa Satellite Mission 7 (COSMIC-2) Global Navigation Satellite
System (GNSS) Radio Occultation (RO) constellation is the follow-on to the
highly successful COSMIC-1 program. The GNSS RO atmospheric soundings have
historically been used to generate Community Radiative Transfer Model simulated
background (B) microwave (...
Comparative analysis among Asia–Pacific geoid models stored at the ISG repository
Springer Science and Business Media LLC - Tập 33 - Trang 1-11 - 2022
Geoid models have important applications in geosciences as well as engineering,
for example, for the conversion from ellipsoidal heights observed by GNSS
techniques to orthometric heights. To meet the user’s demands, the International
Service for the Geoid (ISG, https://www.isgeoid.polimi.it/ ) provides access to
a repository of local, regional, and continental geoid models through its
website. Am...
Developing innovative and cost-effective UAS-PPK module for generating high-accuracy digital surface model
Springer Science and Business Media LLC - - 2023
AbstractTraditional indirect georeferencing requires time-consuming and
labor-intensive field surveys to obtain ground control points (GCPs), making it
challenging to apply in high-risk areas with limited accessibility. This study
proposes a novel and low-cost system for direct georeferencing using unmanned
aerial system post-processing kinematics (UAS-PPK), which is less than a quarter
of the pri...
Climatology of developing and nondeveloping disturbances for tropical cyclone genesis over the western North Pacific
Springer Science and Business Media LLC - Tập 33 - Trang 1-14 - 2022
Tropical disturbances play an important role in the formation of tropical
cyclones (TCs), but their climate characteristics are still poorly understood.
The present study investigated the characteristics of tropical disturbances over
the western North Pacific (WNP) for the period 1965–2020 using the reanalysis
datasets. An algorithm based on the threshold of synoptic-scale vorticity and
convection...
Development and evaluations of the broadband ocean bottom seismometer (Yardbird-BB OBS) in Taiwan
Springer Science and Business Media LLC - Tập 35 - Trang 1-12 - 2024
This study focuses on developing and evaluating the broadband ocean bottom
seismometer (Yardbird-BB OBS) in Taiwan. The Yardbird-BB OBS is a crucial
instrument for recording seismic signals in deep-sea environments. Rigorous
testing ensures optimal performance and data recording capabilities. Following
assembly, the Yardbird-BB OBS undergoes a 3–6 month deployment test in the deep
sea, capturing s...
The first 30 min hidden aftershocks of the 2022 September 17, ML 6.4, Guanshan, Taiwan earthquake and its seismological implications
Springer Science and Business Media LLC - Tập 35 - Trang 1-14 - 2024
The first 30 min of the aftershock sequence following the 2022 September 17, ML
6.4, Guanshan, Taiwan earthquake is investigated by the back-projection (BP)
method. Based on the Automatic Gain Control (AGC) to process individual
earthquake record and sort waveforms by epicentral distance, 80 events are
identified near the Guanshan earthquake epicenter to verify its temporal
variation. However, mos...
The VLF-induced ionospheric perturbations detected by DEMETER during solar minimum
Springer Science and Business Media LLC - Tập 34 - Trang 1-12 - 2023
The VLF-induced ionospheric heating events from the powerful transmitter NWC are
collected at extremely low solar activity years of 2008–2009, and their spatial
and temporal distribution features are investigated. The spatial distribution of
heating signals exhibits clear north-direction inclination of 2–3°, and covering
area within 300 km radius in longitude and latitude. Plasma parameters show t...
The impact of El Niño southern oscillation and Indian Ocean Dipole on the burned area in Indonesia
Springer Science and Business Media LLC - Tập 33 - Trang 1-17 - 2022
Land and forest fire have been identified as one of the main problems
contributing to forest biodiversity and Global Warming and well known as the
phenomenon affected by El Niño Southern Oscillation (ENSO) and Indian Ocean
Dipole (IOD). The total burned area becomes higher when either El Niño or
positive IOD occur. This research aims to analyze and quantify the direct
correlation of the Niño 3.4 a...
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