북극 여름기간 동안 스발바드 섬 주변 해역에서 현장관측에 의한 해수 광특성과 MODIS Aqua 해색위성자료의 검보정

Title
북극 여름기간 동안 스발바드 섬 주변 해역에서 현장관측에 의한 해수 광특성과 MODIS Aqua 해색위성자료의 검보정
Alternative Title
Validation of MODIS Aqua"s ocean color satellite data and characteristic of in-situ ocean optical data around seawater of Svaldard during Arctic Summer
Author(s)
문정언; 안유환; 양찬수
KIOST Author(s)
Moon, Jeong Eon(문정언)Yang, Chan Su(양찬수)
Publication Year
2008-01-24
Abstract
Kongsfjorden, Krossfjorden, and the front of Kongsfjorden near the Korean Arctic Station, Dasan, are glacial fjords in the Svalbard archipelago, Arctic, influenced by both Atlantic and Arctic water masses. During the Arctic field campaign between 12 – 17 June 2007, a total of 22 surface samples about chlorophyll concentration (), total suspended solid particle concentration (ss), water leaving radiance (Lw), and absorption coefficient of phytoplankton, suspended solid particle, dissolved organic matter (aph, ass, adom, respectively) was measured in the Konsfjorden, Krossfjorden and the front of Kongsfjorden. It was found that in-situ a*ph(440) maximum value was 0.1 m2/mg, in-situ a*ss(400) values ranged from 0.04 to 0.1 m2/g and in-situ adom(400) values ranged from 0.08 to 0.25 m-1 at the Kongsfjorden. The Arctic in-situ a*ph(440) values were higher (about two times) than those value of the Korean Peninsula’s seawaters. This means that the primary producer’s absorption efficiency at the Arctic area are higher than those in the coastal area at the middle latitudes. The Arctic in-situ a*ss(400) values were higher than those values of the Korean Peninsula’s seawaters and these were similar in the value at the East China Sea. This means that components of suspended solid particles at the Kongsfjorden were similar in inorganic matters of the East China Sea. The Arctic in-situ adom(400) values were higher than those values of the coastal seawater in the Korean Peninsula and these were similar in the value at the other Korean Peninsula’s area. It was found that average value of in-situ Ed(460) at the Kongsfjorden was 40 mW/cm2/m. This means that the irradiance of the Arctic area showed about 40 % of middle latitudes.The Arctic field campaign matched with the MODIS Aqua overpass on 14, 15, 17 June 2007, thus motivating this validation. It was found that in-situ values ranged from 0.16 to 3.70 mg/m3 (mean of 0.95 mg/m3) and MODIS Aqua’s
URI
https://sciwatch.kiost.ac.kr/handle/2020.kiost/30115
Bibliographic Citation
Korea-Japan Workshop on Ocean Color (KJWOC) - V, pp.9, 2008
Publisher
나가사키 대학 & 한국해양연구원
Type
Conference
Language
English
Publisher
나가사키 대학 & 한국해양연구원
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