Publications

Last Updated:

April 14, 2014

 
General description of the CMA Tropical Cyclone Best Track Dataset

The CMA Tropical Cyclone Best Track Dataset covers tropical cyclones that develop over the western North Pacific. The basin is to the north of the equator and to the west of 180°E, and includes the South China Sea (SCS). The present version of the dataset includes 6-hourly track and intensity analyses since 1949. Each file in the dataset contains data for one year, and the dataset will be updated annually.

 
Filename Format

CHYYYYBST.txt ––

        CH: First label of the dataset, denotes CHINA.

    YYYY: Four-digit calendar year.

      BST: Second label of the dataset, denotes BEST TRACK data.

 
Data Format

1.  Header record

AAAAA 5 columns Header line indicator, '66666' indicates best track data.
BBBB 4 columns International ID.
CCC 3 columns Number of data lines.
DDDD 4 columns Tropical cyclone serial number.
EEEE 4 columns Chinese ID.
F 1 column

Flag of the last data line:

F = 0 Decay;F = 1 Move outside of the region;F = 2 Merge;F = 3 Quasi-stationary.
G 1 column Time interval (hours).
H...H 20 columns Storm names, ‘(-)n’ denotes sub-center and its number. The sub-center refers to a center that was split or induced from the original tropical cyclone circulation center.
I...I 8 columns Date of the latest revision.
 

2.  Best track record

YYYYMMDDHH: Date and time in UTC: 4-digit year, 2-digit month, 2-digit day, and 2-digit hour.
I: Intensity category according to the Chinese National Standard for Grade of Tropical Cyclones (which has been used since 15 June 2006):
0 –– Weaker than Tropical Depression or unknown intensity;
1 –– Tropical Depression (TD: 10.8–17.1 m/s);
2 –– Tropical Storm (TS:17.2–24.4 m/s);
3 –– Severe Tropical Storm (STS: 24.5–32.6 m/s);
4 –– Typhoon (TY: 32.7–41.4 m/s);
5 –– Severe Typhoon (STY: 41.5–50.9 m/s);
6 –– Super Typhoon (SuperTY: ≥51.0 m/s);
9 –– Extratropical Cyclone (ET) stage.
LAT: Latitude (0.1°N).
LONG: Longitude (0.1°E).
PRES: Minimum pressure (hPa) near the TC center.
WND:

Two-minute mean maximum sustained wind (MSW; m/s) near the TC center. WND = 9 indicates MSW < 10 m/s, WND = 0 indicates unknown intensity.

OWD: Two-minute mean sustained wind (m/s) for:
(a) the coastal severe wind of TCs that make landfall, and
(b) the MSW within a radius of about 300–500 km of TCs over the South China Sea.
 
Citation

Please indicate that the CMA Landfalling Tropical Cyclone data was obtained from tcdata.typhoon.org.cn, and refer to the following paper in any written work using the dataset:

  • Ying, M., W. Zhang, H. Yu, X. Lu, J. Feng, Y. Fan, Y. Zhu, and D. Chen, 2014: An overview of the China Meteorological Administration tropical cyclone database. J. Atmos. Oceanic Technol., 31, 287-301. doi: 10.1175/JTECH-D-12-00119.1 (Click to view)
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    Revision history

    14 April, 2014:

  • The track of Ioke (2006) was extended to include its ENP part.
  • 9 January, 2014:

  • Revised the extratropical transition information of Sanba(2012).
  • 30 October, 2013:

  • Typographical errors corrected:
  • Year

    Error

    Correction

    2010 Mindulle

    (nameless)

    Mindulle

    2012 Sanba

    (nameless)

    Sanba

    2012 Gaemi

    header record: ...0021 1202...

    ...0021 1220...

    24 June, 2013:

  • Typographical errors corrected:
  • Year

    Error

    Correction

    1979 Alice

    1979123112

    1979123118

    1978123112 (time of the second record)

    1978123118 (time of the third record)

    2001

    Damrcy

    Damrey

    2003

    Lmbudo

    Imbudo

    2005

    Damrcy

    Damrey

    2008

    Mekkhla

    Mekkhala

    26 March, 2013:

  • Typographical errors corrected:
  • Year

    Error

    Correction

    2000

    Mari

    Maria

    2003

    Lmbudo

    Imbudo

    2005

    Sanvn

    Sanvu

    4 May, 2012:

  • Typographical errors corrected:
  • Year

    Error

    Correction

    1950

    Helen

    Helene

    29 July, 2011:

  • Information regarding the last data line added to header record (F).
  • New data column (OWD) added to best track record; some related errors in WND corrected.
  • 2010:

  • Confusion regarding MSW = 10 m/s and MSW < 10 m/s clarified.Typographical errors:
  • Errors in best track record (I) of the extratropical cyclone stage for 2007–2009 corrected.
  • Errors in some TC positions (longitude and latitude) corrected.
  • Errors in date of Soulik (2006) corrected.
  • Errors in some TC names corrected:
  • Year

    Error

    Correction

     

    Babe
    Agness

    Babs
    Agnes

    1952

     

    Lois

    1986

     

    Georgette

    1987

     

    Percy, Peke, Ogden

    1988

     

    Uleki

    1992

     

    Gay

    1993

     

    Keoni, Abe, Manny

    1994

     

    Li, John, Melissa

    1995

     

    Gary

    1996

     

    Beth

    1997

     

    Oliwa

    2001

     

    Vipa

    2005

     

    Guchol

    2006

     

    Maria