Official Journal of the Asia Oceania Geosciences Society (AOGS)
Review
It is well known that Global Navigation Satellite System (GNSS) signals suffer from a number of vulnerabilities, out of which a potential severe vulnerability is the effect of space weather. Space weather effe...
Geoscience Letters 2016 3:24
Published on: 12 August 2016
Review
Solar-terrestrial physics research in Australia began in 1792 when de Rossel measured the southern hemisphere geomagnetic field at Recherche Bay on the southern tip of Tasmania, proving the field magnitude and...
Geoscience Letters 2016 3:23
Published on: 18 July 2016
Review
Observations of plasma and turbulence in the outer heliosphere (the distant supersonic solar wind and the subsonic solar wind beyond the heliospheric termination shock) made by the Voyager Interstellar Mission...
Geoscience Letters 2016 3:22
Published on: 15 July 2016
Research Letter
Surface friction is important to a vortex moving toward Taiwan but was ignored in several previous studies. The change of the potential vorticity comes from friction in the shallow-water equation, hence, it wa...
Geoscience Letters 2016 3:21
Published on: 8 July 2016
Review
The Indo-Pacific Warm Pool holds a unique place on the globe. It is a large area [>30 × 106 km2] that is characterised by permanent surface temperature >28 °C and is therefore called the ‘heat engine’ of the glob...
Geoscience Letters 2016 3:20
Published on: 29 June 2016
Review
This is a review paper related to three findings of Russian physical oceanographers in the Indian Ocean. Observations in the Indian Ocean were used to investigate mesoscale eddies, subsurface equatorial underc...
Geoscience Letters 2016 3:19
Published on: 24 June 2016
Review
In Taiwan, research and education of solar terrestrial sciences began with a ground-based ionosonde operated by Ministry of Communications in 1952 and courses of ionospheric physics and space physics offered b...
Geoscience Letters 2016 3:18
Published on: 23 June 2016
Review
Equilibrium climate sensitivity (ECS) to doubling of atmospheric CO2 concentration is a key index for understanding the Earth’s climate history and prediction of future climate changes. Tropical low cloud feedbac...
Geoscience Letters 2016 3:17
Published on: 23 June 2016
Research Letter
The present study examines the Madden and Julian oscillation (MJO) appearing in a general circulation model (GCM) with full representation of cloud microphysics at 50 km horizontal resolution, and the MJO is c...
Geoscience Letters 2016 3:16
Published on: 31 May 2016
Research Letter
The first scientific treatise on aurora borealis was published by Marcello Squarcialupi, an Italian medical doctor working in the court of the Hungarian Prince of Transylvania. His book, De coelo ...
Geoscience Letters 2016 3:15
Published on: 26 May 2016
Editorial
Solar terrestrial (ST) sciences started centuries ago and branched into different disciplines. Starting with naked eye to highly sophisticated novel experimental techniques, observations have revealed the secr...
Geoscience Letters 2016 3:14
Published on: 16 May 2016
Review
Global overturning circulation is driven by density differences. Saline water rejected during sea-ice formation in polynyas is the main source of dense water, and thus sea-ice production is a key factor in the...
Geoscience Letters 2016 3:13
Published on: 12 May 2016
Research Letter
The auroral substorm is an organized sequence of events seen in the aurora near midnight. It is a manifestation of the magnetospheric substorm which is a disturbance of the magnetosphere brought about by the s...
Geoscience Letters 2016 3:12
Published on: 12 April 2016
Review
The dynamic state of the ionosphere at low latitudes is largely controlled by electric fields originating from dynamo actions by atmospheric waves propagating from below and the solar wind-magnetosphere intera...
Geoscience Letters 2016 3:11
Published on: 18 March 2016
Review
In the history of geomagnetism, geoelectricity and space science including solar terrestrial physics, ground magnetic records have been demonstrated to be a powerful tool for monitoring the levels of overall g...
Geoscience Letters 2016 3:10
Published on: 10 March 2016
Review
Coronal mass ejections (CMEs) are relatively a recently discovered phenomenon—in 1971, some 15 years into the Space Era. It took another two decades to realize that CMEs are the most important players in solar...
Geoscience Letters 2016 3:8
Published on: 3 March 2016
Review
The majority of risk assessments of tropical cyclone storm surge and inundations are based on the generation of synthetic times series from short historical records. The accuracy of these synthetic time series...
Geoscience Letters 2016 3:9
Published on: 3 March 2016
Review
An earth-science-based classification of islands within the Pacific Basin resulted from the preparation of a database describing the location, area, and type of 1779 islands, where island type is determined as...
Geoscience Letters 2016 3:7
Published on: 2 March 2016
Research Letter
The current status of ionospheric precursor studies associated with large earthquakes (EQ) is summarized in this report. It is a joint endeavor of the “Ionosphere Precursor Study Task Group,” which was formed ...
Geoscience Letters 2016 3:6
Published on: 1 March 2016
Review
The history of geomagnetism is more than 400 years old. Geomagnetic storms as we know them were discovered about 210 years ago. There has been keen interest in understanding Sun–Earth connection events, such a...
Geoscience Letters 2016 3:5
Published on: 20 February 2016
Review
The solar wind energy is transmitted to low latitude ionosphere in a current circuit from a dynamo in the magnetosphere to the equatorial ionosphere via the polar ionosphere. During the substorm growth phase a...
Geoscience Letters 2016 3:4
Published on: 20 February 2016
Research Letter
Using the continuous Dst data available since 1957 and H component data for the Carrington space weather event of 1859, the paper shows that the mean value of Dst during the main phase of geomagnetic storms, call...
Geoscience Letters 2016 3:3
Published on: 19 February 2016
Research Letter
Paddy irrigation practices in Taiwan utilize complicated water conveyance networks which draw streamflows from different tributaries. Characterizing and simulating streamflow series is thus an essential task f...
Geoscience Letters 2016 3:2
Published on: 9 February 2016
Research Letter
The Geotail satellite has been operating for almost two solar cycles (~23 years) since its launch in July 1992. The satellite carries the energetic particle and ion composition (EPIC) instrument that measures ...
Geoscience Letters 2016 3:1
Published on: 13 January 2016
Research Letter
Recent emphasis on dipolarization fronts (DFs) has led to the impression that DFs play a significant role in bringing magnetic flux to the inner magnetosphere during substorms. In this work, we investigate the...
Geoscience Letters 2015 2:15
Published on: 18 December 2015
