DocumentCode :
681755
Title :
Short term forecast of the evaporation duct for the West Pacific Ocean
Author :
Yang Shi ; Kunde Yang ; Yuanliang Ma ; Yixin Yang ; Chao Sun
Author_Institution :
Inst. of Acoust. Eng., Northwestern Polytech. Univ., Xi´an, China
fYear :
2013
fDate :
23-27 Sept. 2013
Firstpage :
1
Lastpage :
4
Abstract :
Evaporation duct, as an important component of atmosphere duct, has a strong impact on near-surface radar propagation. Short term forecast of evaporation duct is significant to the application of ship borne radar and communication systems. This paper presented a short term forecast method of evaporation duct height (EDH) based on Global Forecast System (GFS) products and the Naval Postgraduate School (NPS) evaporation duct model. West Pacific Ocean was chosen as the area of study and National Centers for Environmental Prediction (NCEP) FNL reanalysis data were used to test the forecast accuracy. The results showed that the EDH average forecast error was below 2m within 24 hour in most parts of West Pacific Ocean and increased during the period studied. The EDH forecast accuracy was high within 24 hour and decreased as time passed. The proposed method worked well in short term forecast of evaporation duct for the West Pacific Ocean.
Keywords :
atmospheric boundary layer; atmospheric electromagnetic wave propagation; atmospheric humidity; evaporation; radiowave propagation; GFS products; Global Forecast System; NCEP FNL reanalysis data; NPS evaporation duct model; National Centers for Environmental Prediction; Naval Postgraduate School; atmospheric duct; evaporation duct height; evaporation duct short term forecast; forecast accuracy; near surface radar propagation; radar communication systems; ship borne radar; west Pacific Ocean; Accuracy; Atmospheric modeling; Ducts; Ocean temperature; Predictive models; Sea surface; GFS products; NPS evaporation duct model; evaporation duct; short term forecast;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Oceans - San Diego, 2013
Conference_Location :
San Diego, CA
Type :
conf
Filename :
6741016
Link To Document :
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