The Analysis of Meterological Environment over Jeju Moseulpo Region for HALE UAV

Abstract

In this study, the characteristics of main wind direction, vertical temperature and wind speed profile near the Moseulpo airfield for HALE UAV(High Altitude Long Endurance Unmaned Aerial Vehicle) is investigated. The results are summarized as follows, main wind direction is governed by air mass according to season and local wind such as land-sea breeze. The directions of landing and take-off of HALE UAV will be selected as the south-east direction in June ~ August, north-west direction in October ~ March, and south-east direction at daytime in April ~ May, September. Annual variation of temperature at 100 hPa showed that temperature in summer season is lower than winter season. On the other hands, wind speed at 250 hPa in winter season is higher than summer season. The threshold values of temperature and wind speed for HALE UAV flight are -75 ℃ and 90 ms -1 , which were determined by 5 % frequency value(1.96 σ), respectively.

A taxonomic review of Korean species of the Atheta Thomson subgenus Microdota Mulsant & Rey, with descriptions of two new species (Coleoptera, Staphylinidae, Aleocharinae)

“…Atheta (Microdota) koreana Bernhauer, 1923: 128; Cho and Ahn 2001: 32; Paśnik 2001: 208; Smetana 2004: 386 (as valid species).…”

Vertical Analysis of Wind Speed over South Korea for the Flight Safety of HALE UAV

“…이러한 상층 제트기류는 200 hPa 등압면 고도에서 30 m s -1 이상의 풍속으로 정의된다 [10] . Cho et al(2015) [1,12,13] . Cho et al(2015) [1] Table 2) [10,11] .…”