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Official Journal of the Asia Oceania Geosciences Society (AOGS)

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  1. Large devastating events such as earthquakes often display frequency–magnitude statistics that exhibit power-law distribution. In this study, we implement a recently developed method called earthquake nowcasti...

    Authors: Sumanta Pasari, Andrean V. H. Simanjuntak, Neha and Yogendra Sharma

    Citation: Geoscience Letters 2021 8:27

    Content type: Research Letter

    Published on:

  2. In recent years, signal of opportunity reflectometry (SoOp-R) has become a promising remote sensing technique. This emerging technique employs the reflected signals from existing Global Navigation Satellite Sy...

    Authors: Xuerui Wu, Andrés Calabia, Jin Xu, Weihua Bai and Peng Guo

    Citation: Geoscience Letters 2021 8:25

    Content type: Research Letter

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  3. Small unmanned aerial vehicles have been seeing increased deployment in field surveys in recent years. Their portability, maneuverability, and high-resolution imaging are useful in mapping surface features tha...

    Authors: Richard L. Ybañez, Audrei Anne B. Ybañez, Alfredo Mahar Francisco A. Lagmay and Mario A. Aurelio

    Citation: Geoscience Letters 2021 8:23

    Content type: Research Letter

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  4. Precipitation in the equatorial African rainforest plays an important role in both the regional hydrological cycle and the global climate variability. Previous studies mostly focus on the trends of drought in ...

    Authors: Xin-Yue Wang, Jiang Zhu, Meijiao Xin, Chentao Song, Yadi Li, Yi Zhou and Xichen Li

    Citation: Geoscience Letters 2021 8:22

    Content type: Research Letter

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  5. This research quantitatively and qualitatively analyzes the factors responsible for the water level variations in Lake Toba, North Sumatra Province, Indonesia. According to several studies carried out from 199...

    Authors: Hendri Irwandi, Mohammad Syamsu Rosid and Terry Mart

    Citation: Geoscience Letters 2021 8:21

    Content type: Review

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  6. Eastern Indonesia is one of the world’s most complex regions in terms of tsunami hazards, as it accommodates numerous seismic and non-seismic tsunami sources with a history of deadly tsunamis. This study is an...

    Authors: Ignatius R. Pranantyo, Mohammad Heidarzadeh and Phil R. Cummins

    Citation: Geoscience Letters 2021 8:20

    Content type: Research Letter

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  7. River Hooghly, a tributary of river Ganges is one of the major rivers of Asia having traditional, social, economic, religious, and spiritual values. Water samples were collected from 18 sampling locations of r...

    Authors: Somdeep Ghosh, Madhurima Bakshi, Shouvik Mahanty, Tanushree Gaine, Subarna Bhattacharyya, Jayanta Kumar Biswas and Punarbasu Chaudhuri

    Citation: Geoscience Letters 2021 8:19

    Content type: Research Letter

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  8. The Pacific Walker circulation (WC) is a major component of the global climate system. It connects the Pacific sea surface temperature (SST) variability to the climate variabilities from the other ocean basins...

    Authors: Xin-Yue Wang, Jiang Zhu, Chueh-Hsin Chang, Nathaniel C. Johnson, Hailong Liu, Yadi Li, Chentao Song, Meijiao Xin, Yi Zhou and Xichen Li

    Citation: Geoscience Letters 2021 8:17

    Content type: Research Letter

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  9. During the modern satellite era since 1979, the Pacific Walker circulation (PWC) experienced an intensification and a westward shift, which has broad impacts on the global climate variability. While the streng...

    Authors: Xichen Li, Xinyue Wang, Tao Lian, Nathaniel C. Johnson, Jiang Zhu, Chueh-Hsin Chang, Hailong Liu and Wenzhu Wang

    Citation: Geoscience Letters 2021 8:16

    Content type: Research Letter

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  10. An electrical resistivity survey was carried out using the pole–pole configuration around the Sayanokami spring area in the northern part of Ito Campus (Kyushu University, Fukuoka, Japan) to study the groundwa...

    Authors: Shafiqullah Wahab, Hakim Saibi and Hideki Mizunaga

    Citation: Geoscience Letters 2021 8:15

    Content type: Research Letter

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  11. Identification of periodicities in hydrological time series and evaluation of their statistical significance are not only important for water-related studies, but also challenging issues due to the complex var...

    Authors: Ping Xie, Linqian Wu, Yan-Fang Sang, Faith Ka Shun Chan, Jie Chen, Ziyi Wu and Yaqing Li

    Citation: Geoscience Letters 2021 8:14

    Content type: Research Letter

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  12. The Pearl River Delta (PRD) is a densely populated special economic zone in South China where rapid development since the late 1990s coincided with an increase of many environmental problems in recent years. O...

    Authors: Chen Luo, Joyanto Routh, Dinggui Luo, Lezhang Wei and Yu Liu

    Citation: Geoscience Letters 2021 8:12

    Content type: Review

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  13. Signals of Opportunity Reflectometry (SoOp-R) employs the communication system, GNSS (Global Navigation Satellite System) constellation and other potential Signals of Opportunity (SoOp) as the transmitters. In...

    Authors: Xuerui Wu, Yezhi Song, Jin Xu, Zheng Duan and Shuanggen Jin

    Citation: Geoscience Letters 2021 8:11

    Content type: Research Letter

    Published on:

  14. Several tectonic processes combine to produce the crustal deformation observed across the Cascadia margin: (1) Cascadia subduction, (2) the northward propagation of the Mendocino Triple Junction (MTJ), (3) the...

    Authors: K. A. McKenzie and K. P. Furlong

    Citation: Geoscience Letters 2021 8:10

    Content type: Research Letter

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  15. This study comprehensively investigates the source mechanisms associated with the mainshock and aftershocks of the Mw = 6.3 Yogyakarta earthquake which occurred on May 27, 2006. The process involved using mome...

    Authors: Hijrah Saputra, Wahyudi Wahyudi, Iman Suardi, Ade Anggraini and Wiwit Suryanto

    Citation: Geoscience Letters 2021 8:9

    Content type: Research Letter

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  16. Seasonal forecasts at lead times of 1–12 months for sea surface temperature (SST) anomalies (SSTAs) in the offshore area of China are a considerable challenge for climate prediction in China. Previous research...

    Authors: Weiying Peng, Quanliang Chen, Shijie Zhou and Ping Huang

    Citation: Geoscience Letters 2021 8:8

    Content type: Research Letter

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  17. Accidental oil spills cause serious pollution to the ocean and are difficult to control in short time. It is an important guarantee for emergency disposal to effectively monitor oil spills. Remote sensing is t...

    Authors: Jin Xu, Xinxiang Pan, Xuerui Wu, Baozhu Jia, Juan Fei, Haixia Wang, Bo Li and Can Cui

    Citation: Geoscience Letters 2021 8:7

    Content type: Research Letter

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  18. The oceanic circulation south of Africa is characterised by a complex dynamics with a strong variability due to the presence of the Agulhas current and numerous eddies. This area of interest is also the locati...

    Authors: Xavier Couvelard, Christophe Messager, Pierrick Penven, Sébastien Smet and Philippe Lattes

    Citation: Geoscience Letters 2021 8:5

    Content type: Research Letter

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  19. Quantitative evaluation of the response of crop yield and crop water productivity (CWP) to future climate change is important to prevent or mitigate the adverse effects of climate change. This study made such ...

    Authors: Qi Liu, Jun Niu, Bellie Sivakumar, Risheng Ding and Sien Li

    Citation: Geoscience Letters 2021 8:2

    Content type: Research Letter

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  20. Tropical cyclones (TCs) are strong natural hazards that are important for local and global air–sea interactions. This manuscript briefly reviews the knowledge about the upper ocean responses to TCs, including ...

    Authors: Han Zhang, Hailun He, Wen-Zhou Zhang and Di Tian

    Citation: Geoscience Letters 2021 8:1

    Content type: Review

    Published on:

  21. The 2019/20 Australian black summer bushfires were particularly severe in many respects, including its early commencement, large spatial coverage, and large number of burning days, preceded by record dry and h...

    Authors: Guojian Wang and Wenju Cai

    Citation: Geoscience Letters 2020 7:19

    Content type: Research Letter

    Published on:

  22. The Bulletin of the International Seismological Centre (ISC) remains in demand for a wide range of geophysical studies. Users of the ISC Bulletin benefit from its long-term coverage, the most comprehensive set...

    Authors: Dmitry A. Storchak, James Harris, Lonn Brown, Kathrin Lieser, Blessing Shumba and Domenico Di Giacomo

    Citation: Geoscience Letters 2020 7:18

    Content type: Review

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  23. There is evidence of connections between soil organic carbon (SOC) and inorganic carbon (SIC) in dryland of north China. However, fractions of SOC and SIC and the relationship are not well understood in the Lo...

    Authors: Tongping Lu, Xiujun Wang and Wenxi Zhang

    Citation: Geoscience Letters 2020 7:17

    Content type: Research Letter

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  24. We analyze measurements of bottom currents and thermohaline properties of water north of the Vema Channel with the goal to find pathway continuations of Antarctic Bottom Water flow from the Vema Channel into t...

    Authors: Eugene G. Morozov, Dmitry I. Frey and Roman Y. Tarakanov

    Citation: Geoscience Letters 2020 7:16

    Content type: Research Letter

    Published on:

  25. Following the eruption of Mount Anak Krakatau, a considerable landslide occurred on the southwestern part of the volcano and, upon entering the sea, generated a large tsunami within the Sunda Strait, Indonesia...

    Authors: K. Pakoksung, A. Suppasri, A. Muhari, Syamsidik and F. Imamura

    Citation: Geoscience Letters 2020 7:15

    Content type: Research Letter

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  26. Mt. Agung, located in Karangasem-Bali, Indonesia, had a significant increase of swarm earthquakes from September 2017 until the recent eruption in November 2017. To analyze the seismic swarm and its correlatio...

    Authors: Mohamad Taufik Gunawan, Ridwan Kusnandar, Pepen Supendi, Andri Dian Nugraha, Nanang T. Puspito, Daryono, David P. Sahara and Zulfakriza

    Citation: Geoscience Letters 2020 7:14

    Content type: Research Letter

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  27. The regional climate model (RCM) with higher resolution and sophisticated physical processes can reproduce and project fine-scale climate information, which cannot be captured by the global climate model (GCM)...

    Authors: Dong-Kyou Lee and Dong-Hyun Cha

    Citation: Geoscience Letters 2020 7:13

    Content type: Review

    Published on:

  28. The modern reanalysis datasets provide not only meteorological variables, but also atmospheric chemical compositions such as tropospheric ozone and aerosol concentration. However, the quality of chemical compo...

    Authors: Sunmin Park, Seok-Woo Son, Myung-Il Jung, Jinkyung Park and Sang Seo Park

    Citation: Geoscience Letters 2020 7:12

    Content type: Research Letter

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  29. The 28 September 2018 magnitude Mw7.8 Palu, Indonesia earthquake (0.178° S, 119.840° E, depth 13 km) occurred at 10:02 UTC. The major earthquake triggered catastrophic liquefaction, landslides, and a near-fiel...

    Authors: Jann-Yenq Liu, Chi-Yen Lin, Yuh-Ing Chen, Tso-Ren Wu, Meng-Ju Chung, Tien-Chi Liu, Yu-Lin Tsai, Loren C. Chang, Chi-Kuang Chao, Dimitar Ouzounov and Katsumi Hattori

    Citation: Geoscience Letters 2020 7:11

    Content type: Research Letter

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  30. The use of infrasound for the early detection of volcanic events has been shown to be effective over large distances, and unlike visual methods, is not weather dependent. Signals recorded via an infrasound arr...

    Authors: Ross Adrian Williams, Anna Perttu and Benoit Taisne

    Citation: Geoscience Letters 2020 7:9

    Content type: Research Letter

    Published on:

  31. Determination of hematite contributions to sedimentary magnetizations is an important but difficult task in quantitative environmental studies. The poorly crystalline and fine-grained nature of hematite nanopa...

    Authors: Andrew P. Roberts, Xiang Zhao, David Heslop, Alexandra Abrajevitch, Yen-Hua Chen, Pengxiang Hu, Zhaoxia Jiang, Qingsong Liu and Brad J. Pillans

    Citation: Geoscience Letters 2020 7:8

    Content type: Review

    Published on:

  32. The Zhanghe Reservoir in Yangtze River basin plays a key role in fulfilling the crop water requirements of the irrigation area in its downstream region. This study employs the SWAT (Soil and Water Assessment T...

    Authors: Yuqi Chen, Jun Niu, Yuqing Sun, Qi Liu, Sien Li, Peng Li, Liqun Sun and Qinglan Li

    Citation: Geoscience Letters 2020 7:6

    Content type: Research Letter

    Published on:

  33. The surface ocean current’s imprint on the wind stress (known as the current feedback) has a significant influence on the wind power input to the ocean. In this study, we investigate the effect of the current ...

    Authors: Xuan Shan, Zhao Jing, Bingrong Sun and Lixin Wu

    Citation: Geoscience Letters 2020 7:3

    Content type: Research Letter

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  34. Significant earthquakes on the island of Sumatra, Indonesia, have predominantly been earthquakes with a thrust mechanism that occurred due to the subduction process and seismotectonics near coastal cities of W...

    Authors: Wahyu Triyoso, Aris Suwondo, Tedi Yudistira and David P. Sahara

    Citation: Geoscience Letters 2020 7:2

    Content type: Research Letter

    Published on:

  35. Western Mediterranean Basin (WMB) is among tsunamigenic zones with numerous historical records of tsunami damage and deaths. Most recently, a moderate tsunami on 21 May 2003 offshore Algeria, North Africa, was...

    Authors: Mohammad Heidarzadeh, Yuchen Wang, Kenji Satake and Iyan E. Mulia

    Citation: Geoscience Letters 2019 6:19

    Content type: Research Letter

    Published on:

  36. On September 28, 2018, the Mw 7.5 earthquake occurred in Palu, Central Sulawesi, Indonesia. This earthquake produced strong tremors, landslides, liquefaction and a tsunami and caused thousands of fatalities an...

    Authors: Pepen Supendi, Andri Dian Nugraha, Sri Widiyantoro, Chalid Idham Abdullah, Nanang T. Puspito, Kadek Hendrawan Palgunadi, D. Daryono and Samsul Hadi Wiyono

    Citation: Geoscience Letters 2019 6:18

    Content type: Research Letter

    Published on:

  37. Stress drops of small earthquakes have been estimated under the assumption that the rupture propagates symmetrically within a circular fault. However, recent studies have observed directivity effects on seismi...

    Authors: Keisuke Yoshida

    Citation: Geoscience Letters 2019 6:16

    Content type: Research Letter

    Published on:

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