JAPAN EAST SEA JAPAN EAST SEA

CRUISE IIICRUISE III

“ “JES 3”JES 3”

JANUARY & FEBRUARYJANUARY & FEBRUARY

20002000

Monthly AVHRR composites: Jan-Feb, 1998-2000

JAN 98 FEB 98

JAN 99 FEB 99

JAN 00 FEB 00

Monthly SEAWIFS composites: Jan-Feb, 1998-2000

JAN 98 FEB 98

JAN 99 FEB 99

JAN 00 FEB 00

SeaSoar RadialSeaSoar RadialCruise TrackCruise Track

- Station Positions- Station Positions- Optics Station- Optics Station

PositionsPositions

South Korea

North Korea

Japan

Cruise Track

StationLocations

Yam

ato

Ris

e

Shelf

Japan- East SeaJapan- East Sea(3) Jan-Feb 2000(3) Jan-Feb 2000Japan- East SeaJapan- East Sea(3) Jan-Feb 2000(3) Jan-Feb 2000

Japan- East Sea (3) Japan- East Sea (3) Jan-Feb 2000Jan-Feb 2000

Japan- East Sea (3) Japan- East Sea (3) Jan-Feb 2000Jan-Feb 2000

-SeaSoar Cruise track-Optics Stations-Bio-optical Stations

-BOPS

Yamato

Rise

Cloud Streaks

Cold AirOutbreak

AVHRR imagery illustrates , moisture extracted from surface

waters near the coast and and formation of heavy clouds offshore

-Coastal / Shelf Water Cooling and high evaporation

Jan 21, 2000 0624Z

Cold AirOutbreak

Ice Formation

Coa

stal

and

She

lf W

ater

Coo

ling

AVHRR imagery illustrates , moisture extracted from surface waters near the coast and and

formation of heavy clouds offshore

-Coastal / Shelf Water Cooling and high evaporation

SeaSoar Cruise track and Station Locations

Japan / East Sea JES 3Jan/ Feb 2000

Eddy Eddy

WasmWasm front front

Cold Upwell

ing

East K

orean Warm

East K

orean Warm

Current

Current

Semi- Persistence Eddies occurred at the Subpolar From from the Beginning to End of Cruise

Jan 18 – Feb, 2. Examples of the Frontal Location are

Shown with the ship track and station locations

Jan 18, 2000 Feb 2, 2000

KoreaKoreaJapanJapan

KoreaKoreaJapanJapan

16

14

12

11

6

5

SeaWiFS derived K532Diffuse Attenuation

Coefficient

-Bio-optical properties Show eddy structureAlong the coast.

The optical properties in cooler (North) and warmer (South) have similar bio-optical properties.

SeaWiFs Chlorophyll (SeaBAM )

Feb 1, 2000 0330z

Jan 21, 2000 0339z

- Chlorophyll ~ 0.6 – 1.5 mg/ l

These chlorophyll imageries show the response of the surface biology to the passage of a 2 cold front.

clouds

clouds

Eas

t E

xten

sion

Cen

tral

Ext

ensi

on

Wes

tern

Ext

ensi

on

Sea surface temperature imagery were composted for a 2 week period to define the SST climatology. Three extensions of the warm Tsumia current are illustrated which penetrate the basin interior.

Surface Absorption

Surface attenuation coefficient

fron

t

Surface optical properties changes at the Subpolar Front, decreasing in the colder waters.

A

B

AB

AVHRR- SST

Ship track of the surface Optical properties

Front

AVHRR – SST for Jan 28, 2000Illustrating the passage of a coldfront the extension of the warm Tsumina current at the

Yamato Rise.