Chine JIAOLONG’s First Scientific Crui in 2013
李后主经典诗词LI Xiang-yang 1,LIU Feng2,HU Zhe n3,ZHOU Huai-yang 4,WANG Chun-sheng 5,CHE N Cun-ben 6
(1.C hina Ocean Mineral R esources R&D Association(C OM RA),B eijing10083,C hina;2.C hina National Deep
Sea C enter,Qingdao266061,C hina;3.C hina Ship S cientific R earch C enter,Wuxi214082,China;4.Tongji
猛将百余人University,S hanghai200092,C hina;5.The S econd Institute of Oceanography,State Oceanic Administration,
Hangzhou310012,C hina;6.Northa B ranch of State Oceanic Administration,Qingdao266000,China)
A b s tr a c t:A f te r the successful a tria l in Maria na Tre nch last year,JIAOLONG conducte d its m a id-
en s c i e nti f i c c ruis e f rom Jun e 10th to S e pt20th,2013.Th e c ruis e w a s c ompos e d o f thr ee l e gs in South Chin a S e a,Cl a rion-Clipp e rton Fr ac tur e Zon e o f North ea st P ac i f i c a nd c ob a
lt-ri c h c rust s ea mounts of Northw e st P ac i f i c r e sp ec tiv e ly.This p a p e r will m a inly pr e s e nt JIAOLONG’s positioning syst e m s ea tria l results,the sam pling in dives a nd pre limina ry sc ie nti f i c re sults a t two sites of South China Sea,
f our site s of Cla rion-Clippe rton Frac tur e Zone and two coba lt-ric h crust am ounts of Northwest
Pac i f ic.The a dvanta ges of JIAOLONG on the i n-situ sam pling ar e shown well.
最后一颗子弹留给我K e y wo rd s:JI A OLONG;s ubmersible; s eep;s eamoun t; Clarion-Clipperton Fracture Zon e
CLC number: P74D ocumen t cod e:A doi: 10.3969/j.issn.1007-7294.2014.03.012
1 I n t r oduc t ion
冰心的诗集JIAOLONG conducte d her maiden crui f rom June10th to September20th,2013a f ter the success f ul a trial in Mariana Trenc h where the submersible dive d to a depth o f7062m in June,2012[1-3].The whole crui o f2013was compo d o f three legs respective ly,the f irst in South China Sea emphasized on the positioning system a tria l,the geology and environment survey at a cold ep site and a amount(e Fig.1),the cond in Clarion-C lipperton Frac-ture Zone o f Northeast Paci f
ic(e Fig.2)on the resources,biodiversity and environment sur- vey,and the third in cobalt-r ic h crust amounts o f North w est Pac i f ic(e Fig.3)on the re- sources,biodiversity and environme nt survey.The pa per w ill give a brie f summa ry o f JIAO- LONG’s positioning system a trial and will mainly f ocus on the21dives made in di ff ere nt areas,some pre limina ry scienti f ic results are obtaine d.
2 JI AOLONG’s posi t ioning sys t em a t r i a l
The South China Sea leg,the f irst leg o f2013crui,is mostly targeted to test the under-
Re ce ive d da t e：2014-01-13
Foundation item:S ponsored by C hina Ocean Mineral R esources S urvey&Developm ent Program Biography：
LI Xiang-yang(1978-),m ale,P h.D.,nior engineer of COMR A,E-m ail:lixy@;
芦花鞋LIU F eng(1962-),m ale,rearcher of C NDSC.
w ater positioning systems,which inc ludes the Ultra-Short Ba Line(USBL)positioning sys- tem and the ne wly-insta lle d Long Ba Line(LBL)positioning system.
桃花沟的女人On June12-20, 2013,the USBL-Box software was upda ted,and some interior parame- ters of USBL-Box software were modified.After testing,the data validity of USBL rai d from 45%-80%to above95%.The inclined dista nce error of USBL positioning is calcula ted0.41%. USBL in each dive o f the f irst leg w as tracke d to the submersible position o f descending,bottom sampling and ascending.The positioning results of USBL in Dive60is shown in Fig.4,the da- ta validity is above85%.
Fig.1JIAOLONG’s surv e y a re a s in South Chin a S ea
Four transponders,positione d and de pth-me asure d by USBL,are laid on the flat abe d of the adjace nt JIAOLONG Seamount na me d by the crui team in the South China Sea.The repeatability,continuity and accuracy are tested in Dive57.The variance of positioning in still status is calculated2cm and w ell-r epeatedly,the root mean square error o f positioning original trac k and smoothed positioning trac k in sailing status is calcula te d1.3meters,and the conti-
nuity is validate d(e Fig.5).It is proven that the LBL system is satisfied with the tec hnical specifications a nd ca n support the submersible positioning accurately in the application dives.
Fig.2JIAOLONG’s surv e y a re a s in Cl a rion-Cl ipp e rton Fra c ture Zon e o f North ea st Pa c i f i c
新手学化妆3 JIAOLONG’s dives
配方法例题3.1First leg
In the first leg,two diving locations w e re carefully lec te d ba d on geological di ff er- ences,a cold ep na med as JIAOLONG Seep No.1(22°07′N,119°17′E)by the crui team, and a small but rather steep amount named as JIAOLONG Seamount(17°35′N,117°47′E). Six dives w e re conducted at the JIAOLONG See p No.1,w hile four dives at the JIAOLONG Seamount.The cruising paths of total ten dives are shown in Fig.1,geological and biological samples were obtaine d(See Tab.1),and the samples and the underwater pic tures take n during the dives and are shown in Fig.6.
Fig.3JIAOLONG’s survey a reas in cobalt-rich crust am ounts of Northwest Pac ific
Fig.4The results of USBL positioning in Dive60
Fig.5 Contrast of LBL and USBL positioning results
Musls and porcelain crabs Porcelain crab Musls
Sponges Spider crab Sea cucumbers and coral
Carbonate rock with chimne Carbonate rock with musls Nodules and diment
Fig.6 Samples and pictures taken during the first leg
