A Yellow Sea historical dataset for model validation

Jiang ZhuInstitute of Atmospheric Physics

Chinese Academy of Sciences

YEOS Annual meeting and Workshop on Yellow Sea Operational Oceanography24-25 April 2008, Copenhagen, Denmark

Outline

• Data server and access

• Data subsets

XBT profiles

SST reports from ship and drifter

GODAE high resolution SST products

• A evaluation of GHRSST using SST reports

Data server and access

Using secure ftp softwares, such as “SSH secure file transfer”

IP:159.226.234.19username: passwd: (contact yeos partner for password)

Input the following:

Data subsets• XBT profiles

• SST reports from ship and drifter

• GODAE high resolution SST products

XBT profiles

• Data source: GTS-PP best XBT

(ftp://ftp.nodc.noaa.gov/pub/gtspp/best)

• Ftp address: /usr/home/yeos/XBT

• Read software: Yes/in FORTRAN

• Period: 1994-2003

• Covered region: Yellow Sea.

Locations of XBT during the period of 1994-2003.

The number of XBT during 1994-2003.

SST reports from ship and drifter

Data source: NEAR-GOOS (North-East Asian Regional-Global Ocean Observing System)

Ftp address: /usr/home/yeos/NEARGOOS

File names: “YS_Ship.dat” and “YS_Buoy.dat”

Format: ASCⅡ

Read software: Yes/in FORTRAN/readme.doc

Period: 2005.1-2006.9

Covered region: Yellow Sea.

Locations of reports during the period of 2005.1-2006.9.

Report Number During 2005.1~2006.9

Month2005/01

2005/072006/01

2006/07

Nu

mb

er

of

Sh

ip r

epo

rts

60

80

100

120

140

160

180

200

Nu

mb

er

of

Bu

oy

rep

ort

s

0

100

200

300

400

500

600

700

Ship reportDrifting buoy

Quality control

We collected the SST observations in Yellow Sea during the period of from Jan 2005 to Sep 2006.

These SST observations are qality controlled by some measures as follows:

• Eliminate the redundant SST reports according to time, location, SST, air temperature and wind;

• SST reports without a call sign, or with a generic call sign just like “SHIP”, are excluded;

• Check the ship positions for consistency at the method of ship tracking (ref. Kent and Challenor,

2006).

GHRSST L4 products

• Data source: GHRSST-PP, which includes five Datasets:

MGDSST (JMA), MWOISST (RSS), NGSST (UT), OSTIA (NCOF), and FSTIA (FNMOC).

ftp://ftp.discover-earth.org/sst/misst/l4/tmi_amsre

ftp://www.ocean.caos.tohoku.ac.jp/pub/mergedsst_binary

http://godae.kishou.go.jp/doc/mgdsst.html

http://ghrsst-pp.metoffice.com/data/SOTIA/index.htm

ftp://usgodae1.usgodae.org/pub/outgoing/fnmoc/models/ghrsst

•Ftp address: Ftp address: /usr/home/yeos/GHRSST

•Read software: Yes/in Fortran & Matlab

•Period: 2002.6-2008. 4

•Covered region: Around Yellow Sea (27°N-41°N, 117°E-131°E), Figure 5 shows the regions,

the periods and the resolutions of the five Datasets respectively.

THANKS

Please input more data into this server!