scholarly journals Ionospheric Disturbances Observed from a Single GPS Station in Hong Kong During the Passage of Super Typhoon Hato in 2017

Space Weather ◽  
2021 ◽  
Author(s):  
Shiwei YU ◽  
Zhizhao LIU ◽  
Tsz Cheung Lee
Keyword(s):  
Hong Kong ◽  
Ionospheric Disturbances ◽  
Super Typhoon ◽  
Gps Station

Ionospheric Disturbances That Accompanied the Super Typhoon Lekima Event of 4 - 12 August 2019

2021 ◽  
Author(s):  
Leonid F. Chernogor ◽  
Yu Zheng ◽  
Kostyantyn Garmash ◽  
Qiang Guo ◽  
Victor T. Rozumenko ◽  
...  
Keyword(s):  
Ionospheric Disturbances ◽  
Super Typhoon

scholarly journals Providing 4P's in Extraordinary Management Services in Whatever Weather Condition

2019 ◽  
Vol 14 (3) ◽  
pp. 104
Author(s):  
Ming Kwan ◽  
Anthony Kong ◽  
David Liu
Keyword(s):  
Hong Kong ◽  
Crisis Management ◽  
Real Life ◽  
Weather Condition ◽  
Property Management ◽  
Super Typhoon ◽  
Adverse Weather Condition ◽  
Adverse Weather ◽  
Management Services

Using the properties management in Park Island, Hong Kong, as a case study, the purpose is to focus on illustrating the significance of providing 4P’s “Proactive, Protective, Professional and Passionate” in extraordinary properties management services in whatever weather condition and on whenever situation. Design/Methodology/Approach - This paper used the Super Typhoon Mangkhut in Sept 2018 in Park Island, Hong Kong, as a case study to illustrate the professionalism exhibited in Park Island, Kai Shing Management Services Limited. The deep thoughts and feelings from residents were quoted and analyzed. Authors conducted twenty-five in-depth semi-structured interviews. Findings - The inspiring real life experiences from respondents who have been living in Park Island were quoted. It has been reflecting the “PARK ISLAND" spirit and demonstrating the significance of professionalism and extraordinary service performance for crisis management after super typhoon Mangkhut signal No. 10 was hoisted. Providing 4P’s “Proactive, Protective, Professional and Passionate” in extraordinary properties management services in whatever weather condition and on whenever situation can gain the trust, respect, appreciation and gratitude from residents to professional property management practitioners. Practical implications – Based on the insights gained from interviewees, providing 4P’s –“Proactive, Protective, Professional and Passionate” in extraordinary properties management services in whatever weather condition and on whenever occasion can exceed residents’ expectations and enhance the reputation of the property management company. Originality/value - This paper urges for the fundamental service philosophy and attitude exhibited from the property management practitioners to deal with crisis management during the adverse weather condition. This paper uses the Super Typhoon Mangkhut in Sept 2018 in Park Island, Hong Kong, as a case study, and the aim of such an episode is to arouse all the properties management companies to strive the best to meet and exceed residents’ needs in whatever weather condition and on whenever occasion.

Medium-scale traveling ionospheric disturbances triggered by Super Typhoon Nepartak (2016)

2017 ◽  
Vol 44 (15) ◽  
pp. 7569-7577 ◽  
Author(s):  
Min-Yang Chou ◽  
Charles C. H. Lin ◽  
Jia Yue ◽  
Loren C. Chang ◽  
Ho-Fang Tsai ◽  
...  
Keyword(s):  
Ionospheric Disturbances ◽  
Medium Scale ◽  
Traveling Ionospheric Disturbances ◽  
Super Typhoon

scholarly journals Real-Time GNSS-Derived PWV for Typhoon Characterizations: A Case Study for Super Typhoon Mangkhut in Hong Kong

2019 ◽  
Vol 12 (1) ◽  
pp. 104 ◽  
Author(s):  
Qimin He ◽  
Kefei Zhang ◽  
Suqin Wu ◽  
Qingzhi Zhao ◽  
Xiaoming Wang ◽  
...  
Keyword(s):  
Time Series ◽  
Hong Kong ◽  
Water Vapor ◽  
Wind Speed ◽  
Real Time ◽  
Global Navigation Satellite Systems ◽  
International Gnss Service ◽  
China Meteorological Administration ◽  
Super Typhoon

Typhoons can be serious natural disasters for the sustainability and development of society. The development of a typhoon usually involves a pre-existing weather disturbance, warm tropical oceans, and a large amount of moisture. This implies that a large variation in the atmospheric water vapor over the path of a typhoon can be used to study the characteristics of the typhoon. This is the reason that the variation in precipitable water vapor (PWV) is often used to capture the signature of a typhoon in meteorology. This study investigates the usability of real-time PWV retrieved from global navigation satellite systems (GNSS) for typhoons’ characterizations, and especially, the following aspects were investigated: (1) The correlation between PWV and atmospheric parameters including pressure, temperature, precipitation, and wind speed; (2) water vapor transportation during a typhoon period; and (3) the correlation between the movement of a typhoon and the transportation of water vapor. The case study selected for this research was Super Typhoon Mangkhut that occurred in mid-September 2018 in Hong Kong. The PWV time series were obtained from a conversion of GNSS-derived zenith total delays (ZTDs) using observations at 10 stations selected from the Hong Kong GNSS continuously operating reference stations (CORS) network, which are also located along the path of the typhoon. The Bernese GNSS Software (ver. 5.2) was used to obtain the ZTDs; and the root mean square (RMS) of the differences between the GNSS-ZTDs and International GNSS Service post-processed ZTDs time series was less than 8 mm. The RMS of the differences between the GNSS-PWVs (i.e., the ZTDs converted PWVs) and radiosonde-derived PWVs (RS-PWVs) time series was less than 2 mm. The changes in PWV reflect the variation in wind speed during the typhoon period to a certain degree, and their correlation coefficient was 0.76, meaning a significant positive correlation. In addition, a new approach was proposed to estimate the direction and speed of a typhoon’s movement using the time difference of PWV arrival at different sites. The direction and speed estimated agreed well with the ones published by the China Meteorological Administration. These results suggest that GNSS-derived PWV has a great potential for the monitoring and even prediction of typhoon events, especially for near real-time warnings.

Ionospheric disturbances detected during a typhoon based on GNSS phase observations: A case study for typhoon Mangkhut over Hong Kong

2020 ◽  
Vol 66 (7) ◽  
pp. 1743-1753
Author(s):  
Jun Chen ◽  
Xiaohong Zhang ◽  
Xiaodong Ren ◽  
Jincheng Zhang ◽  
Mohamed Freeshah ◽  
...  
Keyword(s):  
Hong Kong ◽  
Ionospheric Disturbances

scholarly journals DETECTION OF IONOSPHERIC DISTURBANCES OVER MAIDANAK USING GPS DATA ON SEPTEMBER 24, 2021

InterConf ◽  
2021 ◽  
pp. 265-270
Author(s):  
Husan Eshquvatov ◽  
Yusufjon Tillayev ◽  
Uralbay Asatov
Keyword(s):  
Total Electron Content ◽  
Estimation Algorithm ◽  
Gps Data ◽  
Electron Content ◽  
Ionospheric Disturbances ◽  
Regional Models ◽  
Total Electron ◽  
Gps Station

In this study we investigated the effects of ionosphere on variations of Total Electron Content (TEC), and consequently deviations on regional models of Vertical TEC (VTEC), as well as variations in ionospheric GPS stations was analyzed using PRN 1 and PRN 32 codes. The estimation algorithm is applied to the computed VTEC data for Maidanak GPS station on 24 September 2021.

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