Weather Warning

Personal warning system for vessels under bad weather conditions

Many services provide weather forecasts, including severe weather alerts for the marine. It proves that many ships neglect the warnings because they expect to be able to handle the bad weather conditions. In order to identify possible unsafe situations the Coast Guard needs to observe marine vessel traffic 24 hours, 7 days a week. In this paper we propose a system that is able to support the Co...

Weather-adapted Vehicle Detection for Forward Collision Warning System

A preceding vehicle detection method for forward collision warning system is proposed. The proposed method utilizes the horizontal and vertical edges instead of underneath shadow to detect preceding vehicles without being influenced by variant weather conditions. We first extract horizontal edges and then check the vertical edges above horizontal edges to confirm the location of a horizontal ed...

3.6 Space Weather Effects on Soho and Its Leading Role in the Early-warning System for Space Weather

Since its launch on 2 December 1995, the Solar and Heliospheric Observatory (SOHO) has provided an unparalleled breadth and depth of information about the Sun, from its interior, through the hot and dynamic atmosphere, and out to the solar wind. In addition SOHO has several times demonstrated its leading role in the early-warning system for space weather. SOHO is in a halo orbit around the L1 L...

Hot weather warning might help to reduce elderly mortality in Hong Kong.

While there was evidence on the relationship between extreme hot weather and the increase in mortality, particularly from ischaemic heart disease (IHD) and cerebrovascular disease (stroke), some researchers suggested that early warning systems might reduce mortality. In this study, the relationship between Very Hot Weather Warning (VHWW) and mortality was examined in the context of Hong Kong, w...

Reprint 526 Merging Nowcasting and NWP in Weather Warning Operations, with Special Reference to Landslides