نتایج جستجو برای: weather delay

تعداد نتایج: 172078  

2009
Kai-Wei Chiang Wei-Chih Peng Yen-Hua Yeh Kwo-Hwa Chen

Plum rains and typhoons are important weather systems in the Taiwan region. They can cause huge economic losses, but they are also considered as important water resources as they strike Taiwan annually and fill the reservoirs around the island. There are many meteorological sensors available for investigating the characteristics of weather and climate systems. Recently, the use of GPS as an alt...

Journal: :Current Biology 2015
Henry M. Streby Gunnar R. Kramer Sean M. Peterson Justin A. Lehman David A. Buehler David E. Andersen

Migration is a common behavior used by animals of many taxa to occupy different habitats during different periods. Migrant birds are categorized as either facultative (i.e., those that are forced to migrate by some proximal cue, often weather) or obligate (i.e., those that migrate on a regular cycle). During migration, obligate migrants can curtail or delay flights in response to inclement weat...

2015
Iny Jhun Brent A Coull Joel Schwartz Bryan Hubbell Petros Koutrakis

Air quality is heavily influenced by weather conditions. In this study, we assessed the impact of long-term weather changes on air quality and health in the US during 1994-2012. We quantified past weather-related increases, or 'weather penalty', in ozone (O3) and fine particulate matter (PM2.5), and thereafter estimated the associated excess deaths. Using statistical regression methods, we deri...

2016
Stefan Gössling Bruno Abegg Robert Steiger Daniel Scott

The importance of weather for tourism is now widely recognized. However, no research has so far addressed weather events from retrospective viewpoints, and, in particular, the role of “extreme” events in longer-term holiday memories. To better understand the character of ex post weather experiences and their importance in destination image perceptions and future travel planning behavior, this e...

2017
Qinghong Zhang Xiang Ni Fuqing Zhang

Understanding the trend of localized severe weather under the changing climate is of great significance but remains challenging which is at least partially due to the lack of persistent and homogeneous severe weather observations at climate scales while the detailed physical processes of severe weather cannot be resolved in global climate models. Based on continuous and coherent severe weather ...

2012
Scot E. Campbell Michael P. Matthews Rich DeLaura

The effective management of traffic flows during convective weather events in congested air space requires decision support tools that can translate weather information into anticipated air traffic operational impact. In recent years, MIT Lincoln Laboratory has been maturing the Convective Weather Avoidance Model (CWAM) to correlate pilot behavior in the enroute airspace with observable weather...

2008
Yongheon Lee Shmuel S. Oren

The prevalence of commercial activities whose profit and cost are correlated with weather risk makes weather derivatives valuable financial instruments that enable hedging of price or volumetric (quantity) risk in many industries. This paper proposes a multi-period equilibrium pricing model for weather derivative. In our stylized economy representative agents of weather-sensitive industries opt...

Journal: :Electronics 2023

Troposcatter propagation delay is one of the most significant sources errors in troposcatter time comparison. The existing methods calculating face problems terms effectively reflecting influence meteorological environment on delay, due to insufficient spatial and temporal resolution data. This article proposes a high-precision calculation method for based atmospheric reanalysis path refractive...

Journal: :ISPRS International Journal of Geo-Information 2015

2017
Ryan Allen Burchfield Dixie Thompson Mary Evans David R. Bassett Sharon Burchfield

The primary purpose of this study was to examine the association of outdoor physical activity (PA) with weather-related factors (temperature, humidity, heat index, and precipitation) when data was measured onsite (Knoxville Third-Creek Greenway). Secondary to this research question, this study explored whether the source of weather­ related data (site-specific vs. public domain) influenced the ...

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