Articles

Bernoulli equation and flow over a mountain

The Bernoulli equation is applied to an air parcel which originates at a low level at the inflow region, climbs adiabatically over a mountain with an increase in velocity, then descends on the lee side and for...

Authors: Wen-Yih Sun and Oliver M. Sun

Preceding seismic activity and slow slip events in the source area of the 2011 Mw 9.0 Tohoku-Oki earthquake: a review

The 2011 Tohoku-Oki earthquake ruptured a large area of the megathrust east of NE Japan. The earthquake’s magnitude was 9.0, substantially larger than predicted. It is important to know what occurred in the so...

Authors: Akira Hasegawa and Keisuke Yoshida

Current understanding of the aeronomy of Mars

This paper provides a short overview of our current understanding of the upper atmosphere/ionosphere of Mars including the escaping neutral atmosphere to space that plays a key role in the current state of the...

Authors: Andrew F Nagy and Joseph M Grebowsky

Geological and tectonic implications obtained from first seismic activity investigation around Lembang fault

The Lembang fault located at northern part of populated Bandung basin is the most conspicuous fault that potentially capable in generating earthquakes. The first seismic investigation around Lembang fault has ...

Authors: ᅟ Afnimar, Eko Yulianto and ᅟ Rasmid

Distributions of inorganic nitrogen and biological production in the equatorial Pacific: a basin-scale model sensitivity study of nitrification

Recent evidence indicates that there is stronger nitrification in the euphotic zone than previously thought. We employ a physical-biogeochemical model to study the implications of nitrification for basin-scale...

Authors: Xiujun Wang and Raghu Murtugudde

New directions in hydro-climatic histories: observational data recovery, proxy records and the atmospheric circulation reconstructions over the earth (ACRE) initiative in Southeast Asia

The value of historic observational weather data for reconstructing long-term climate patterns and the detailed analysis of extreme weather events has long been recognized (Le Roy Ladurie, 1972; Lamb, 1977). I...

Authors: Fiona Williamson, Rob Allan, Adam D Switzer, Johnny C L Chan, Robert James Wasson, Rosanne D’Arrigo and Richard Gartner

Preliminary investigation of the formation age and chemical characterization of the tropical peat in the middle Sepik Plain, northern Papua New Guinea

Seven gouge cores in the middle Sepik Plain (northern Papua New Guinea) were bored to clarify the depositional age and the chemical characteristics of the tropical peat. The weakly-acidic peat layer (3–4 m thi...

Authors: Eisuke Ono, Mitsutoshi Umemura, Takuya Ishida and Chisato Takenaka

The salinity signature of the equatorial Pacific cold tongue as revealed by the satellite SMOS mission

The space-borne measurements of the SMOS mission reveal for the first time the complete features of the sea surface salinity (SSS) signature at the full scale of the Pacific basin. The SSS field in the equator...

Authors: Christophe Maes, Nicolas Reul, David Behringer and Terence O’Kane

Passive acoustic measurement of flow velocity in the Straits of Florida

Group speed of sound in moving fluids depends on the propagation direction, which breaks acoustic reciprocity. Acoustic nonreciprocity provides a means to measure fluid motion. Using nonreciprocity, one can me...

Authors: Oleg A Godin, Michael G Brown, Nikolay A Zabotin, Liudmila Y Zabotina and Neil J Williams

Advances in earthquake and tsunami sciences and disaster risk reduction since the 2004 Indian ocean tsunami

The December 2004 Indian Ocean tsunami was the worst tsunami disaster in the world’s history with more than 200,000 casualties. This disaster was attributed to giant size (magnitude M ~ 9, source length >1000 km)...

Authors: Kenji Satake

Active moon: evidences from Chandrayaan-1 and the proposed Indian missions

Chandrayaan-1, the polar Lunar orbiter mission of Indian Space Research Organization, successfully carried out study of Moon’s environment and surface processes for a period of about nine months during 2008–20...

Authors: Narendra Bhandari and Neeraj Srivastava

Potential for timing high-energy marine inundation events in the recent geological past through age-dating of reef boulders in Fiji

Transported coastal boulders have increasingly come to represent a valuable element of investigations within the broader framework of multi-proxy approaches applied to coastal hazard studies. Through a case st...

Authors: James P Terry and Samuel Etienne

Origin of the filamentary structure in space plasmas

We propose a scenario that filamentary structure appears together with propagating waves on the scale of ion gyroradius. The method is based on two-dimensional ion particle-in-cell (or hybrid) simulation in lo...

Authors: Horia Comişel, Vlad Constantinescu and Yasuhito Narita

A traveling atmospheric disturbance generated by a soil colour change in a high-resolution climate model experiment

The climate model CESM-WACCM is used to study the way a soil colour change of the eastern region of the Sahara affects the dynamics of the troposphere. The soil colour is darkened for 5 days. The difference be...

Authors: Elisavet Proedrou and Klemens Hocke

A post-Tohoku earthquake review of earthquake probabilities in the Southern Kanto District, Japan

The 2011 Mw 9.0 Tohoku earthquake generated an aftershock sequence that affected a large part of northern Honshu, and has given rise to widely divergent forecasts of changes in earthquake occurrence probabilit...

Authors: Paul G Somerville

The interannual relationship between MJO activity and tropical cyclone genesis in the Indian Ocean

The present study investigated the relationship between the interannual variations of Madden-Julian Oscillation (MJO) and tropical cyclone genesis (TCG) over the Indian Ocean during the October-November-Decemb...

Authors: Aya Tsuboi and Tetsuya Takemi

Development of Intensity-Duration-Frequency curves at ungauged sites: risk management under changing climate

The impact of a changing climate is already being felt on several hydrological systems both on a regional and sub-regional scale of the globe. Southeast Asia is one of the regions strongly affected by climate ...

Authors: San Chuin Liew, Srivatsan V Raghavan and Shie-Yui Liong

Remarkable ground uplift and reverse fault ruptures for the 2013 Bohol earthquake (Mw 7.1), Philippines, revealed by SAR pixel offset analysis

By applying a pixel offset analysis using RADARSAT-2 SAR data to an inland crustal earthquake that occurred on Bohol Island, Philippines on 15 October 2013, we succeeded in mapping a ground displacement associ...

Authors: Tomokazu Kobayashi

Giant palaeo-landslide dammed the Yangtze river

Field evidence is presented to demonstrate that a very large landslide blocked the Jinsha River (the main stem of the Yangtze) near the present day town of Qiaojia, Yunnan Province. The discovery is significan...

Authors: David L Higgitt, Xinbao Zhang, Weiming Liu, Qiang Tang, Xiubin He and Sylvain Ferrant

Climate variability and change: a perspective from the oceania region

This brief review identifies seven key science questions in relation to climate variability and change and examines recent research within the Australian and Pacific context: 1. How do the key processes contro...

Authors: Tom Beer

Meta-heuristic algorithms as tools for hydrological science

In this paper, meta-heuristic optimization techniques are introduced and their applications to water resources engineering, particularly in hydrological science are introduced. In recent years, meta-heuristic ...

Authors: Do Guen Yoo and Joong Hoon Kim

Geohazards and myths: ancient memories of rapid coastal change in the Asia-Pacific region and their value to future adaptation

Rapid coastal change is common in the Asia-Pacific region yet an understanding of its causes, recurrence times, and impacts is not always clear through the use of conventional geological methods. It is suggest...

Authors: Patrick D Nunn

Recent scientific and operational achievements of D/V Chikyu

The D/V Chikyu, a scientific drilling vessel, is equipped with industry-standard riser capabilities. Riser drilling technology enables remarkable drilling and downhole logging capabilities and provides unpreceden...

Authors: Asahiko Taira, Sean Toczko, Nobu Eguchi, Shin’ichi Kuramoto, Yusuke Kubo and Wataru Azuma

Editorial

Authors: Kenji Satake