International hydrographic organization



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INTERNATIONAL HYDROGRAPHIC

ORGANIZATION

INTERGOVERNMENTAL OCEANOGRAPHIC

COMMISSION (of UNESCO)



UNDERSEA FEATURE NAME PROPOSAL

(Sea NOTE overleaf)


Note: The boxes will expand as you fill the form.

Name Proposed:

Magoshichi Guyot

Ocean or Sea:

Northwest Pacific Ocean




Geometry that best defines the feature (Yes/No) :

Point

Line

Polygon

Multiple points

Multiple lines*

Multiple polygons*

Combination of geometries*







Yes













* Geometry should be clearly distinguished when providing the coordinates below.




Lat. (e.g. 63°32.6’N)

Long. (e.g. 046°21.3’W)

Coordinates:

19°40.97'N (summit 1)

19°12.90’N

19°16.87’N

19°30.43’N

19°35.50’N

19°50.06’N

19°56.19’N

19°56.65’N

20°03.50’N

20°04.83’N

20°00.53’N

19°55.50’N

19°47.51’N

19°41.69’N

19°29.01’N

19°19.75’N

19°15.47’N

19°15.25’N

19°16.67’N

19°12.90’N



153°37.25'E (summit 1)

153°16.97’E

153°07.32’E

153°03.25’E

153°02.54’E

153°01.83’E

153°08.52’E

153°13.20’E

153°18.68’E

153°34.32’E

153°50.32’E

153°55.69’E

153°53.97’E

154°00.03’E

153°58.66’E

153°51.79’E

153°39.37’E

153°31.65’E

153°21.88’E

153°16.97’E






Feature Description:

Maximum Depth :

5879 m

Steepness :




Minimum Depth :

1244 m

Shape :




Total Relief :

4635 m

Dimension/Size :

93 km×107 km




Associated Features:







Chart/Map References:

Shown Named on Map/Chart:




Shown Unnamed on Map/Chart:




Within Area of Map/Chart:







Reason for Choice of Name (if a person, state how associated with the feature to be named):

The guyot is named after a legendary captain and educator late Mr. Magoshici Sato. See CV for details.




Discovery Facts:

Discovery Date:

Jan. and Feb. 2000

Discoverer (Individual, Ship):

The Japanese survey vessel “Takuyo”




Supporting Survey Data, including Track Controls:

Date of Survey:

Jan. and Feb. 2000

Survey Ship:

The Japanese survey vessel “Takuyo”

Sounding Equipement:

Multibeam echo sounder

Seabeam 2112



Type of Navigation:

GPS without Selective Availability

Estimated Horizontal Accuracy (nm):

0.014 nm (26 m)

Survey Track Spacing:

5 nm

Supporting material can be submitted as Annex in analog or digital form.




Proposer(s):

Name(s):

JCUFN

Date:

Sep. 10, 2015

E-mail:

ico@jodc.go.jp

Organization and Address:

Hydrographic and Oceanographic Department, Japan Coast Guard

Aomi 2-5-18,Koto-ku, Tokyo 135-0064, Japan



Concurrer (name, e-mail, organization and address):







Remarks:


The last name, Sato, is very popular in Japan. So, employing “Sato” for an undersea feature name, we cannot indentifiy which ”Sato”. Therefore, JCUFN decided to use the first name in this case.



NOTE : This form should be forwarded, when completed :
a) If the undersea feature is located inside the external limit of the territorial sea :-

to your "National Authority for Approval of Undersea Feature Names" (see page 2-9) or, if this does not exist or is not known, either to the IHB or to the IOC (see addresses below);


b) If at least 50 % of the undersea feature is located outside the external limits of the territorial sea :-

to the IHB or to the IOC, at the following addresses :




International Hydrographic Bureau (IHB)

4, Quai Antoine 1er

B.P. 445

MC 98011 MONACO CEDEX



Principality of MONACO

Fax: +377 93 10 81 40

E-mail: info@ihb.mc


Intergovernmental Oceanographic Commission (IOC)

UNESCO


Place de Fontenoy

75700 PARIS



France

Fax: +33 1 45 68 58 12

E-mail: info@unesco.org



Personal history of late Captain and Professor Magoshichi Sato
Given name: Magoshichi

Family name: Sato
1910 Born

2006 Diseased


Professional carrier:

Before around 1943 He was a fisherman, then he worked for a fisheries guidance ship and for the Fisheries Institute.

Around 1943 Joined the Hydrographic Department of Japan, as the first captian of Survey Vessel “Dai-yon Kaiyo”

1967 Retired from the Hydrographic Department of Japan

1968-1975 Captain of the “Tokai-Daigaku Maru II”, the training vessel of Tokai Universiy

1975-1981 Professor, School of Marine Science and Technology, Tokai University


Remarks:

He was a legendary captain and professor in Japanese hydrographic and oceanographic community. He influenced numerous Japanese mariners in hydrographic and oceanographic community. He published many technical reports concerning steering of ships (written in Japanese).


List of selected publication:

Sato, M., Kinoshita, Y., Hanada, M., Araki, N., Moriya, H., and Ishii, K., Fundamental ten rules of dredging by towing, Journal of the School of Marine Science and Technology, Tokai University, 3, 149-157, 1990. (in Japanese with English abstact)


Fig. 1. Bathymetric map of the Magoshichi Guyot. Contours are in 100 m.


Fig. 2. Bathymetric map of the Magoshichi Guyot, showing with track lines. Contours are in 100 m.

Fig. 3. Bathymetric profiles across the Magoshichi Guyot.


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