North Indian Ocean TC Cross-validation and Correction Records, 1970-2000

Note that the North Indian Ocean (IO) includes Arabian Sea (A) and Bay of Bengal (B) TC Basins. The JTWC 1970-2000 Annual Tropical Cyclone Reports are available from JTWC Web Site, URL: http://www.npmoc.navy.mil/. Blank space in the "Remarks and actions" column indicates "No Action Taken".

Year: 1970

JTWC ARCHIVE

Storm ID/Period/Name

ATR

Remarks and actions

IO011970 052806-060212 TC01A

No data.

 

IO021970 052218-052312 TC02B

No data.

 

IO031970 050118-050612 TC03B

No data.

 

IO041970 060618-061100 TC04B

No data.

 

IO051970 062906-070300 TC05B

No data.

 

IO061970 070606-070812 TC06B

No data.

 

IO071970 081706-081912 TC07B

No data.

 

IO081970 092018-092212 TC08B

No data.

 

IO091970 090718-091712 TC09B

No data.

 

IO101970 090118-091300 TC10B. It moved westward from NE India (22.3N/87.3E) into Arabian Sea (22.9N/61.0E) in 12 days.

No data.

 

IO111970 101018-101300 TC11A

No data.

 

IO121970 101718-102400 TC12B

No data.

 

IO131970 112118-112812 TC13A

No data.

 

IO141970 111818-112012 TC14B

No data.

 

IO151970 110718-111300 TC15B

No data.

 

Notes for 1970:

Prior to 1970, the ATRs do not provide North Indian Ocean tropical cyclone best-track data. The 1970 ATR provide tropical cyclone best-track data in Western North Pacific (p. 4-1 to p. 4-25 and p. 5-1 to p. 5-102) and Eastern North Pacific (p. AN-1 to AN-27). The first year when ATCR provides North Indian Ocean TC best-track data is 1971.

Year: 1971

JTWC ARCHIVE

Storm ID/Data Period/Name

ATR

Remarks and actions

IO011971 050318-050800 TC02A

No data.

 

IO021971 060118-060412 TC02B

No data.

 

IO031971 060306-060800 TC03B

No data.

 

IO041971 062006-062312 TC04B

No data.

 

IO051971 01971506-072200 TC05B

No data.

 

IO061971 072606-072912 TC06B

No data.

 

IO071971 080717-080912 TC07B

No data.

 

IO081971 083006-083112 TC08B

No data.

 

IO091971 090106-090112 TC09B

No data.

 

IO101971 092406-092500 TC10B

No data.

 

IO111971 092718-093012 TC11B

No data.

 

IO121971 Both TC ID and data are missing.

No data.

 

IO131971 101406-101712 TC13B

No data.

 

IO141971 102618-103112 TC14B

No data.

Note: Same as ATCR TC ID 25-71.

IO151971 110106-110112 TC15B

No data.

 

IO161971 102706-103112 TC16A

No data.

 

IO171971 Both TC ID and data are missing.

No data.

 

IO181971 110318-110612 TC18B

No data.

Note: Same as ATCR TC ID 27-71.

IO191971 121406-122100 TC19A

No data.

 

 

ID: 25-71, 102800-103000, track data only, no intensity (i.e., maximum wind speed). The TC 27-51 is JTWC ARCHIVE TC ID IO1471 and TC name TC14B. Suggestion: keep the JTWC ARCHIVE IO1471 data and add a note to it.

No change. Stay with JTWC Archive: IO1471.

 

ID: 27-71, 110412-110612, track data only, no intensity. This is JTWC ARCHIVE TC ID IO1871 and TC name TC18B. Suggestion: keep the JTWC ARCHIVE IO1871 data and add a not to it.

No change. Stay with JTWC Archive: IO1871.

Notes:

The ATR contains only two Bay of Bengal TCs (p. B-1 - B-11). ATR's Storm ID 25-71 and Storm ID 27-71 differ from JTWC Archive Storm ID IO1471 and Storm IO1871, respectively. ATR contains TC 25-71 fixes and 12-hourly (00 and 12Z) best-tracks (p. B-6). ATR contains TC 27-71 fixes and irregular time interval (i.e., 00, 07 and 12Z) best-tracks (p. B-11).

Year: 1972

JTWC ARCHIVE

Storm ID/Period/Name

ATR

Remarks and actions

IO011972 040706-041100 TC01B

Similar to ATCR ID: IO 19-72. 040812-041100. Intensity data are available. Suggestion: ATCR data replaces JTWC ARCHIVE data.

Suggestion completed.

IO021972 062506-062700 TC02A

No data.

 

IO031972 070106-070200 TC03A

No data.

 

IO041972 070506-070621 TC04B

No data.

 

IO051972 071306-071500 TC05B

No data.

 

IO061972 080506-081212 TC06B

No data.

 

IO071972 081206-082000 TC07B

No data.

 

IO081972 082806-083100 TC08B

No data.

 

IO091972 090706-091412 TC09B

Similar to ATCR ID: IO 24-72. Intensity data are available. Suggestion: ATCR data replaces JTWC ARCHIVE data.

 

IO101972 092006-092512 TC10B

Similar to ATCR ID: IO 25-72. 092012-092200. Intensity data are available. Suggestion: ATCR data replaces JTWC ARCHIVE data.

 Suggestion completed.

IO111972 100218-100512 TC11B

No data.

 

IO121972 101918-102512 TC12A

No data.

 

IO131972 111306-112100 TC13A

No data.

 

IO141972 111506-112300 TC14B

Looping case. Similar to ATCR ID: IO 31-72. 111600-112212. Less data at the beginning and toward the end. Suggestion: ATCR data replaces JTWC ARCHIVE data.

Suggestion completed.

IO151972 112606-112912 TC15B

No data.

 

IO161972 120106-120800 TC16B

No data.

 

IO171972 120506-120800 TC17B

No data.

 

IO181972 122006-122012 TC18B

No data.

 

IO301972 113000-120500 SALLY (A NW Pacific TC)

Duplication of JTWC ARCHIVE western North Pacific ID: 3072. Suggestion: delete JTWC ARCHIVE IO301972.

Suggestion completed.

 

ID: 19-72. During 040812-041100 in Bay of Bengal. Suggestion: replace JTWC ARCHIVE 011972 by ATCR 19-72, and delete 19-72.

 

 

ID: 24-72, formerly TY ELSIE. 090912-091000.

 

 

ID: 25-72, formerly TY FLOSSIE. 092012-092200.

 

 

ID: 31-72. 111600-112212. Looping case.

 

 

Notes for 1972:

1972 was the first year that ATR provides somewhat complete records of Bay of Bengal tropical cyclones (Bay of Bengal data only, p. 125-131). Prior to 1972 ATR data are somewhat incomplete.

Year: 1973

JTWC ARCHIVE

Storm ID/Period/Name.

ATR

Remarks and actions

IO011973 052600-052812 TC01A

No data.

 

IO021973 060612-061212 TC02A

No data.

 

IO031973 070600-070900 TC03B

No data.

 

IO041973 070700-070812 TC04A

No data.

 

IO051973 071200-071412 TC05B

No data.

 

IO061973 071900-072212 TC06B

No data.

 

IO071973 081400-081812 TC07A. Over the northwest India land area.

No data.

 

IO081973 082600-083112 TC08B

No data.

 

IO091973 090200-090500 TC09B. Over the northeast India land area.

No data.

 

IO101973 100612-101212 TC10B

TC 33-73. Agree during 100812-101200. Suggestion: delete JTWC ARCHIVE data and replace it with ATCR track and intensity data.

Suggestion completed.

IO111973 102500-102712 TC11A

No data.

 

IO121973 110312-110900 TC12B

TC 35-73. Agree during 110400-110900. Suggestion: delete JTWC ARCHIVE data and replace it with ATCR track and intensity data.

 

IO131973 111412-111800 TC13B

TC 37-73. Disagree on TC locations. ATCR data available during 111600-111706 (a typo in ATCR). Suggestion: delete JTWC ARCHIVE data and replace it with ATCR track and intensity (about 50-55 knots).

Suggestion completed.

IO141973 120500-120912 TC14B

TC 41-73. Disagree on TC locations. ATCR data available during 120600-120912. Suggestion: delete JTWC ARCHIVE data and replace it with ATCR track and intensity.

Suggestion completed.

IO151973 121312-121512 TC15B

No data.

 

IO161973 122512-122712 TC16B

No data.

 

Notes for 1973:

The ATR contains four Bay of Bengal TCs (ATR p. 89-96). ATR contains TC fixes and 6-hourly, 00, 06, 12 and 18Z. The best-tracks include intensity data.

Year: 1974

JTWC ARCHIVE

Storm ID/Period/Name.

ATR

Remarks and actions

IO011974 041412-041700 TC01A

No data.

 

IO021974 051700-052200 TC02A

No data.

 

IO031974 052912-060100 TC03B

No data.

 

IO041974 061512-061800 TC04B

No data.

 

IO051974 080800-080912 TC05B

No data.

 

IO061974 081300-082000 TC06B

No data.

 

IO071974 091912-092412 TC07A

No data.

 

IO081974 092600-093000 TC08B

No data.

 

IO091974 100700-100812 TC09B

No data.

 

IO101974 101400-101500 TC10B

No data.

 

IO111974 102400-102500 TC11A

No data.

 

IO121974 112300-112812 TC12B

TC 30-74. Data are available during 112418-112812. Suggestion: delete JTWC ARCHIVE 121974 and replace it with ATCR 30-74.

 

Notes for 1974:

The ATR contains one Bay of Bengal TC (ATR p. 112-113). ATR contains TC fixes and 6-hourly best-tracks including intensity data.

Year: 1975

JTWC ARCHIVE

Storm ID/Period/Name.

ATR

Remarks and actions

IO011975 010612-011012 TC01B

No data.

 

IO021975 050100-051112 TC02A

24-75 050206-051200. Location differences. Example: at 051100, JTWC ARCHIVE: 17.9N/64.5E; ATCR: 16.9N/64.8E. Suggestion: replace JTWC ARCHIVE IO021975.

 Suggestion completed.

IO031975 050412-050812 TC03B

25-75 050518-050806. Location differences. Example: at 050600, JTWC ARCHIVE: 14.9N/94.1E; ATCR: 14.8N/94.4E. Suggestion: replace JTWC ARCHIVE IO031975.

 Suggestion completed.

IO041975 052912-060100 TC04A

No data.

 

IO051975 060400-060712 TC05B

No data.

 

IO061975 061800-061912 TC06B

No data.

 

IO071975 062312-062512 TC07A

No data.

 

IO081975 062512-062900 TC08B

No data.

 

IO091975 071800-072300 TC09B

No data.

 

IO101975 080500-080700 TC10B

No data.

 

IO111975 081700-082412 TC11B

No data.

 

IO121975 090900-091300 TC12B

No data.

 

IO131975 092400-092712 TC13B

No data.

 

IO141975 100200-100512 TC14A

No data.

 

IO151975 101700-101800 TC15B

No data.

 

IO161975 101900-102412 TC16A

28-75 102018-102206. Location differences. Example: at 102100, JTWC ARCHIVE: 19.4N/68.6E; ATCR: 19.5N/68.6E. Suggestion: replace JTWC ARCHIVE IO161975.

 Suggestion completed.

IO171975 102600-102712 TC17B

No data.

 

IO181975 110100-110312 TC18B

No data.

 

IO191975 110700-111200 TC19B

29-75 110718-111206. Location differences. Example: at 110806, JTWC ARCHIVE: 14.0N/83.9E; ATCR: 15.2N/82.2E. Suggestion: replace JTWC ARCHIVE IO191975.

 Suggestion completed.

IO201975 112400-120200 TC20B, a looping track

33-75 112506-120106. Location differences. Example: at 112506, JTWC ARCHIVE: 11.2N/81.8E; ATCR: 12.0N/83.8E. Suggestion: replace JTWC ARCHIVE IO201975.

 Suggestion completed.

No data

04-75 011006-011100. Suggestion: Add to JTWC ARCHIVE data. Re-number the JTWC ARCHIVE data.

 

Notes for 1975:

1975 was the first year ATR reports both the Bay of Bengal and Arabian Sea tropical cyclones. The ATR contains 6-hoult best-tracks including intensity data for two Bay of Bengal TCs and one Arabian Sea TC (ATR p. 49 and p. 70-72).

Year: 1976

JTWC ARCHIVE

Storm ID/Period/Name

ATR

Remarks and actions

IO011976 042900-050300 TC01B

20-76 042918-050212. Less data at the beginning and toward the end. Suggestion: ATCR data set replaces JTWC ARCHIVE data set. Delete extra JTWC ARCHIVE data.

Suggestion completed. 

IO021976 05290-060512 TC02A

22-76 060206-060312. Differences in tropical cyclone locations. Suggestion: replace JTWC ARCHIVE data.

 Suggestion completed.

IO031976 072800-080112 TC03B

No data.

 

IO041976 080100-080400 IOTC04B

No data.

 

IO051976 081200-081900 TC05B

No data.

 

IO061976 082700-090900 TC06B, looping track. It moves from NW India to Arabian Sea in 13 days.

No data.

 

IO071976 090800-092000 TC07B

23-76 091006-091118. Differences in tropical cyclone locations. Suggestion: replace JTWC ARCHIVE data.

 Suggestion completed.

IO081976 101200-101900 TC08A

25-76 101506-101718. Differences in tropical cyclone locations. Suggestion: replace JTWC ARCHIVE data.

 Suggestion completed.

IO091976 101500-102112 TC09B

No data.

 

IO101976 110300-110700 TC10B

No data.

 

IO111976 111300-111612 TC11A

No data.

 

IO121976 111500-111712 TC12B

No data.

 

IO131976 112212-113000 TC13B

No data.

 

IO141976 122800-010312 (next year, 1977) TC14B

30-76 122918-010212 (next year, 1977). Less data at the beginning and toward the end. Differences in tropical cyclone locations. Suggestion: replace JTWC ARCHIVE data.

 Suggestion completed.

Notes for 1976:

The ATR contains 6-hoult best-tracks including intensity data for three Bay of Bengal TCs and two Arabian Sea TCs (ATR p. 56 and p. 83-84). JTWC ARCHIVE has no intensity data.

Year: 1977

JTWC ARCHIVE

Storm ID/Period/Name

ATR

Remarks and actions

IO011977 050900-051312 TC01B

17-77 051120-051308. Less data at the beginning and toward the end. Suggestion: ATCR data set replaces corresponding JTWC ARCHIVE data set. Make linear interpolation for 6 hourly data from 12 hourly data. Delete extra JTWC ARCHIVE data.

 Suggestion completed.

IO021977 060900-061300 TC02A

18-77 061020-061308. Less data at the beginning, but more data toward the end. Suggestion: Same as TC 17-77.

 Suggestion completed.

IO031977 101900-102212 TC03A

No data. Suggestion: keep the JTWC ARCHIVE data.

No change of JTWC Archive.

IO041977 102700-110412 TC04B

19-77 102920-103120. Less data at the beginning and toward the end. Suggestion: Same as TC 17-99.

 Suggestion completed.

IO051977 110900-112300 TC05B

21-77 111020-112120. Less data at the beginning and toward the end. Suggestion: Same as TC 17-99.

 Suggestion completed.

IO061977 111400-112012 TC06B

22-77 111508-111920. Less data at the beginning and toward the end. Suggestion: Same as TC 17-77.

 Suggestion completed.

Notes for 1977:

The ATR TC pages: 12-hour best track / intensity data, p. 52-54, and p. 77-78. The JTWC ARCHIVE has 6-hour data.

Year: 1978

JTWC ARCHIVE

Storm ID/Period/Name.

ATR

Remarks and actions

IO011978 051400-051712 TC01B

TC18-78. 051302-051720. Suggestion: delete JTWC ARCHIVE 011978, replace it by TC18-78 data with time interpolation of location and intensity. Keep JTWC ARCHIVE ID number system.

 Suggestion completed.

IO021978 102500-102800 TC02B

TC19-78. 102402-102808. Suggestion: same as above.

 Suggestion completed.

IO031978 110300-111300 TC03B

TC20-78. 110308-111220. Suggestion: same as above.

 Suggestion completed.

IO041978 111900-112900 TC04B. Moved from B to southern India and to A.

TC21-78. 111920-112714. Suggestion: same as above.

 Suggestion completed.

Notes for 1978:

Both the ATR and JTWC Archive have 4 TCs, respectively. 1978 was the first year the numbers of TC from ATR and JTWC Archive agree. The ATR provides 6-hour data at 02, 08, 14 and 20Z (p. 63-69; p. 111-113).

Year: 1979

JTWC ARCHIVE

Storm ID/Period/Name.

ATR

Remarks and actions

IO011979 050512-051312 TC01B

TC 17-79. 050508-051220. Suggestion: delete JTWC ARCHIVE 011979, replace it by TC17-79 data with time interpolation of location and intensity. Keep JTWC ARCHIVE ID number system.

Suggestion completed.

IO021979 061600-062000 TC02A

TC 18-79. 061714-062020. Suggestion: same as TC 17-79.

Suggestion completed.

IO031979 080600-081000 TC03B

No data.

 

IO041979 091600-092500 TC04B

TC 23-79. 091802-092502.

Suggestion: same as TC 17-79.

Suggestion completed.

IO051979 092100-092300 TC05B

TC 22-79. 092002-092320. Suggestion: same as TC 17-79 above.

Suggestion completed.

IO061979 102700-110112 TC06B

TC 24-79. 102902-110114. Suggestion: same as TC 17-79.

Suggestion completed.

IO071979 111300-111712 TC07A

TC 25-79. 111402-111802. Suggestion: same as TC 17-79.

Suggestion completed.

IO081979 112300-112512 TC08B

TC 26-79. 112014-112514. Suggestion: same as TC 17-79.

Suggestion completed.

IO091979 HOPE. Started at the Basi Strait, dissipated at the west of Calcutta.

NW Pacific 09-79 Hope. Delete JTWC ARCHIVE data.

Delete the JTWC ARCHIVE data, IO091979.

Notes for 1979:

The ATR data are 6-hour data at 02, 08, 14 and 20Z (p. 90-99; p. 131-134).

Year: 1980

JTWC ARCHIVE

Storm ID/Period/Name

ATCR

Remarks and actions

IO011980 101006-102000 TC01B

No data.

 

IO021980 101600-101900 TC02B

No data.

 

IO031980 111206-111906 TC03A

TC 23-80. 111202-111908. Suggestion: stay with JTWC ARCHIVE data, but add intensity data.

 

IO041980 120300-120712 TC04B

No data.

 

IO051980 121200-121712 TC05B

TC 27-80. 121008-122002. Suggestion: stay with JTWC ARCHIVE data, but add intensity data.

 

Notes for 1980:

ATCR North Indian Ocean 6-hourly tropical cyclone data are on 02, 08, 14 and 20Z (p. 109-112; p.176-178). JTWC ARCHIVE 6-hourly data are on 00, 06, 12 and 18Z.

Year: 1981

JTWC ARCHIVE

Storm ID/Period/Name

ATCR

Remarks and actions

IO011981 102506-110200 TC01B. No intensity during 103006-110200.

TC 27-81. 102802-110202. Suggestion: replace JTWC ARCHIVE missing intensity with ATCR intensity by interpolation. Using JTWC ARCHIVE ID.

Suggestion completed.

IO021981 111706-112018 TC02B

TC 29-81. Generally agree during 111702-112014. Suggestion: stay with JTWC ARCHIVE data.

Suggestion completed.

IO031981 120506-121018 TC03B

TC 31-81. Generally agree during 120502-121020. Suggestion: stay with JTWC ARCHIVE data.

Suggestion completed.

Notes for 1981:

The ATCR North Indian Ocean 6-hourly tropical cyclone data are on 02, 08, 14 and 20Z (p. 116-120; p.185-187), but the JTWC ARCHIVE 6-hourly data are on 00, 06, 12 and 18Z.

Year: 1982

JTWC ARCHIVE

Storm ID/Period/Name.

ATCR

Remarks and actions

IO011982 043006-050512 TC01B

TC 20-82. Generally agree during 043002-050508. Suggestion: adopt JTWC ARCHIVE ID.

Suggestion completed.

IO021982 053006-060406 TC02B. Intensity data missing during 060112-060406.

TC 22-82. Generally agree during 060120-060408. Less data at the beginning. Suggestion: add ATCR intensity to JTWC ARCHIVE missing intensity data.

Suggestion completed.

IO031982 101318-101618 TC03B

TC 23-82. Generally agree during 101320-101620. Suggestion: stay with JTWC ARCHIVE data.

Suggestion completed.

IO041982 101706-101900 TC04B. Intensity data are missing at 101818 and 101900.

TC 24-82. Generally agree during 101708-101902. Suggestion: according to ACTR, intensities at 101818 and 101900 are 45 and 30 knots, respectively.

Suggestion completed.

IO051982 110418-110900 TC05A

TC 25-82. Generally agree during 110414-110902. Suggestion: stay with JTWC ARCHIVE data.

Suggestion completed.

Notes for 1982:

The ATCR North Indian Ocean 6-hourly tropical cyclone data are on 02, 08, 14 and 20Z (p. 125-136; p. 222-227), but the JTWC ARCHIVE 6-hourly data are on 00, 06, 12 and 18Z.

Year: 1983

JTWC ARCHIVE

Storm ID/Period/Name

ATCR

Remarks and actions

IO011983 080900-081012 TC01A

TC 01-83. Agree.

 

IO021983 100100-100400 TC02B

TC 02-83. Agree.

 

IO031983 101812-102018 TC03B. Intensity various from 20 to 30 knots.

No data. Suggestion: delete the JTWC ARCHIVE data, and re-label the tropical cyclone ID.

 

IO041983 110506-110918 TC04B. If we re-labeled the ID, the new ID would be IO031983 (name is TC03B).

TC 03-83. Agree.

 

Notes for 1983:

The ATCR data are on p. 99-105 and p. 186-189.

Year: 1984

JTWC ARCHIVE

Storm ID/Period/Name

ATCR

Remarks and actions

IO011984 052312-052806 TC01A

TC 01-84. Agree.

 

IO021984 101012-101412 TC02B

TC 02-84. Agree.

 

IO031984 110900-111506 TC03B

TC 03-84. Agree.

 

IO041984 112706-120806 TC04B

TC 04-84. Agree.

 

Notes for 1984:

The ATCR data are on p. 131-145 and p. 208-212.

Year: 1985

JTWC ARCHIVE

Storm ID/Period/Name

ATCR

Remarks and actions

IO011985 052218-052506 TC01B

TC 01B. Agree.

 

IO021985 052806-060100 TC02A

TC 02A. Agree.

 

IO031985 100818-101106 TC03B

TC 03B. Agree.

 

IO041985 101500-101612 TC04B

TC 04B. Agree.

 

IO051985 111306-111800 TC05B

TC 05B. Agree.

 

IO061985 120906-121406 TC06B

TC 06B. Agree.

 

Notes for 1985:

The ATCR data are on p. 118-137 and p. 230-234.

Year: 1986

JTWC ARCHIVE

Storm ID/Period/Name

ATCR

Remarks and actions

IO011986 010706-011106 TC01B

Graphic data only (no numerical data). Suggestion: stay with JTWC ARCHIVE data

Suggestion completed.

IO021986 110900-110912 TC02B

Graphic data only (no numerical data). Suggestion: stay with JTWC ARCHIVE data

Suggestion completed.

IO031986 110906-111106 TC03A

Graphic data only (no numerical data). Suggestion: stay with JTWC ARCHIVE data

Suggestion completed.

Notes for 1986:

The ATCR data are on (p. 144-151).

Year: 1987

JTWC ARCHIVE

Storm ID/Period/Name

ATCR

Remarks and actions

IO011987 013006-020406 TC01B

TC 01B. Agree during 020100-020312. Less data at the beginning and toward the end. Typo in ATCR at 87020100, intensity is 75 knots. JTWC ARCHIVE intensity is 30 knots. Suggestion: delete JTWC ARCHIVE data due to weak intensity (i.e., less than 30 knots) and replace JTWC ARCHIVE data by ATCR data.

Suggestion completed.

IO021987 053006-060506 TC02B

TC 02B. Agree during 060206-060500. Suggestion: delete JTWC ARCHIVE data and replace it by ATCR data.

Suggestion completed.

IO031987 060406-061200 TC03A

TC 03A. Agree during 060506-060912. Suggestion: delete JTWC ARCHIVE data and replace it by ATCR data.

Suggestion completed.

IO041987 101400-101612 TC04B

TC 04B. Agree during 101500-101600. Suggestion: delete JTWC ARCHIVE data and replace it by ATCR data.

Suggestion completed.

IO051987 103000-110306 TC05B

TC 05B. Agree during 103100-110306. Suggestion: delete JTWC ARCHIVE data and replace it by ATCR data.

Suggestion completed.

IO061987 110800-111312 TC06B

TC 06B. Agree during 111118-111300. Suggestion: delete JTWC ARCHIVE data and replace it by ATCR data.

Suggestion completed.

IO071987 120200-121300 TC07B

TC 07B. Agree during 120800 (when intensity is 30 knots) -121118 (when intensity is 30 knots). JTWC ARCHIVE intensity reached 30 knots also during 120400-120418. Suggestion: stay with JTWC ARCHIVE data.

Suggestion completed.

IO081987 121700-122306 TC08B. The cyclone re-intensified (when intensity reached 35 knots) during 122012-122100.

TC 08B. Agree during 121800-121900. Suggestion: stay with JTWC ARCHIVE data.

Suggestion completed. 

IO101987 080700-082412 CARY (NW Pacific TC)

Typhoon CARY 10W. 081300-082212. Suggestion: delete JTWC ARCHIVE 101987 in IO, replace ATCR by JTWC ARCHIVE data in 10W-87.

Suggestion completed.

Notes for 1987:

The ATCR data are on p. 138-155 and p. 198-200.

Year: 1988

JTWC ARCHIVE

Storm ID/Period/Name.

ATCR

Remarks and actions

IO011988 060800-061218 TC01A

TC 01A. Agree. 061000-061206. Less data at the beginning and toward the end. Suggestion: replace JTWC ARCHIVE data.

Suggestion completed. 

IO021988 101706-101906 TC02B

TC 02B. 101812-101900. Less data at the beginning and toward the end. One intensity difference at 88101818 (JTWC ARCHIVE 35 knots; ATCR 30 knots). Suggestion: replace JTWC ARCHIVE data.

Suggestion completed.

IO031988 111406-111818 TC03B

TC 03B. Agree during 111800-111812. Less data at the beginning and toward the end. Suggestion: stay with the JTWC ARCHIVE data.

Suggestion completed.

IO041988 112118-113000 TC04B

TC 04B. Agree during 112406-112912. Less data at the beginning and toward the end. Suggestion: stay with the JTWC ARCHIVE data.

Suggestion completed.

IO051988 120606-120818 TC05B

TC 05B. Agree during 120700-120806. Less data at the beginning and toward the end. Suggestion: stay with the JTWC ARCHIVE data.

Suggestion completed.

Notes for 1988:

The ATCR data are on p. 145-159 and p. 203-204.

Year: 1989

JTWC ARCHIVE

Storm ID/Period/Name

ATCR

Remarks and actions

IO011989 052300-052706 TC01B

TC 01B. Agree during 052312-052618. Less data at the beginning and toward the end. Suggestion: stay with JTWC ARCHIVE data.

Suggestion completed.

IO021989 060718-061306 TC02A

TC 02A. 061206-061306. Some differences: at 89061206, ATCR intensity 35 knots, JTWC ARCHIVE intensity 30 knots; at 89061300, ATCR 21.4N, JTWC ARCHIVE 21.1N; at 89061306: ATCR 21.5N/63.4E, JTWC ARCHIVE 21.3/63.7E. Suggestion: replace JTWC ARCHIVE data by ATCR data.

Suggestion completed.

IO321989 110100-111006 GAY (a WP321989 TC)

Typhoon GAY 32W. Agree during 110200-111006. Suggestion: delete 321989 from the JTWC ARCHIVE data because the storm started from the south China Sea, east of Malay Peninsula.

Suggestion completed.

Notes for 1989:

The ATCR data are on p. 187-191 and p. 240.

Year: 1990

JTWC ARCHIVE

Storm ID/Period/Name

ATCR

Remarks and actions

IO011990 041712-041812 TC01B

No data.

 

IO021990 050312-051106 TC02B

No data.

 

IO031990 103018-111400 TC03B

No data.

 

IO041990 121318-121900 TC04B

No data.

 

WP231990 092906-100512 IRA (a WP 231990 TC)

23W. A South China Sea tropical storm. Suggestion: Delete this TC data from JTWC ARCHIVE data.

Suggestion completed.

Notes for 1990:

The ATCR data are on p. 227-231. The best-track data are graphic data only.

Year: 1991

JTWC ARCHIVE

Storm ID/Period/Name

ATCR

Remarks and actions

IO011991 011418-012006 TC01A

TC 01A. Agree during 011706-012006. Less data at the beginning. Suggestion: replace JTWC ARCHIVE data with ATCR data.

Suggestion completed.

IO021991 042218-043018 TC02B

TC 02B. Agree during 042418-043018. Less data at the beginning. Suggestion: replace JTWC ARCHIVE data with ATCR data.

Suggestion completed.

IO031991 053000-060300 TC03B

TC 03B. Agree during 053112-060218. Less data at the beginning and toward the end. Suggestion: replace JTWC ARCHIVE data with ATCR data.

Suggestion completed.

IO041991 110906-111612 TC04B

TC 04B. Agree during 111406-111600. Less data at the beginning and toward the end. Suggestion: replace JTWC ARCHIVE data with ATCR data.

Suggestion completed.

Notes for 1991:

The ATCR data are on p. 151-161 and p.211-212.

Year: 1992

JTWC ARCHIVE

Storm ID/Period/Name

ATCR

Remarks and actions

IO011992 051500-052000 TC01B

01B. Agree during 051612-052000. Less data at the beginning. Suggestion: replace JTWC ARCHIVE data with ATCR data.

Suggestion completed.

IO021992 060306-061200 TC02A

02A. Agree during 060506-061206. Less data at the beginning and toward the end. Suggestion: replace JTWC ARCHIVE data.

Suggestion completed.

IO031992 061412-061812 TC03B

03B. Agree during 061700-061806. Less data at the beginning and toward the end. Suggestion: replace JTWC ARCHIVE data.

Suggestion completed.

IO041992 072418-072800 TC04B

04B. Agree during 072612-072706. Less data at the beginning and toward the end. Suggestion: replace JTWC ARCHIVE data.

Suggestion completed.

IO051992 092100-092500 TC05B

05B. Agree during 0922112-092400. Less data at the beginning and toward the end. Suggestion: replace JTWC ARCHIVE data.

Suggestion completed.

IO061992 092900-100412 TC06A

06A. Agree during 100106-100312. Less data at the beginning and toward the end. Suggestion: replace JTWC ARCHIVE data.

Suggestion completed.

IO071992 100412-100912 TC07B

07B. Agree during 100700-100906. Less data at the beginning and toward the end. Suggestion: replace JTWC ARCHIVE data.

Suggestion completed.

IO081992 101318-102200 TC08B

08B. Agree during 102106-102118. Less data at the beginning and toward the end. Intensity was 15, 20 and 25 knots during 101318-101812, 101818-102000 and 102006-102100, respectively. Suggestion: replace JTWC ARCHIVE data.

Suggestion completed.

IO091992 103112-110800 TC09B

09B. Agree during 110300-110718. Less data at the beginning and toward the end. Suggestion: replace JTWC ARCHIVE data.

Suggestion completed.

IO101992 110600-111718 TC10B

10B. Agree during 111100-111718. Less data at the beginning. Suggestion: replace JTWC ARCHIVE data.

Suggestion completed.

IO111992 112912-120400 TC11A

11A. Agree during 113012-120318. Less data at the beginning and toward the end. Suggestion: replace JTWC ARCHIVE data.

Suggestion completed.

IO121992 121812-122418 TC12A

12A. Agree during 122012-122418. Less data at the beginning. Suggestion: replace JTWC ARCHIVE data.

Suggestion completed.

IO241992 101206-102912 ANGELA (WP 241992)

24W. Agree during 101600-102912. Intensities are 15-25 knots during 101206-101518. Suggestion: delete JTWC ARCHIVE data.

Suggestion completed.

IO301992 110812-112200 FORREST (WP 301992)

30W. Agree during 111218-112200. Intensities are 15-25 during 110812-111206. Suggestion: delete JTWC ARCHIVE data.

Suggestion completed.

Notes for 1992:

The ATCR data are on p. 157-181 and p.235-239.

Year: 1993

JTWC ARCHIVE

Storm ID/Period/Name

ATCR

Remarks and actions

IO011993 110500-111600 TC01A

TC 01A. Agree during 111218-111600. Intensities are 20-30 knots during 110500-111206. Suggestion: replace JTWC ARCHIVE data with ATCR data.

Suggestion completed.

IO021993 112700-120518 TC02B

TC 02B. Agree during 113012-120518. Intensities are 20-25 knots during 112700-113006. Suggestion: replace JTWC ARCHIVE data with ATCR data.

Suggestion completed.

Notes for 1993:

The ATCR data are on p. 158-163 and p. 215.

Year: 1994

JTWC ARCHIVE

Storm ID/Period/Name

ATCR

Remarks and actions

IO011994 031818-032512 NONAME

TC 01B. Agree.

 

IO021994 042618-050312 NONAME

TC 02B. Agree.

 

IO031994 060512-060918 NONAME

TC 03A. Agree.

 

IO041994 102812-103118 NONAME

TC 04B. Agree.

 

IO051994 111300-112006 NONAME

TC 05A. Agree.

 

Notes for 1994:

The ATCR data are on p. 233-244 and p. 313-315.

Year: 1995

JTWC ARCHIVE

Storm ID/Period/Name

ATCR

Remarks and actions

IO011995 091200-092000 NONAME

TC 01B. Agree.

 

IO021995 101100-101812 NONAME

TC 02A. Agree.

 

IO031995 110512-111018 NONAME

TC 03B. Agree.

 

IO041995 111818-112518 NONAME

TC 04B. Agree.

 

Notes for 1995:

The ATCR data are on p. 200-210 and p. 262-264.

Year: 1996

JTWC ARCHIVE

Storm ID/Period/Name

ATCR

Remarks and actions

IO011996 050106-050818 NONAME

TC 01B. Agree.

 

IO021996 060900-061212 NONAME

TC 02A. Agree.

 

IO031996 061100-061818 NONAME

TC 03B. Agree.

 

IO041996 061500-062512 NONAME

TC 04A. Agree.

 

IO051996 101400-110206 NONAME

TC 05A. Agree.

 

IO061996 102118-102906 NONAME

TC 06B. Agree. ATCR typos: at 96102906, JTWC ARCHIVE location and intensity: 25.6N/90.2E, 25 knots; ATCR location: 14.1N/64.1E, 35 knots. Suggestion: Stay with the JTWC ARCHIVE data.

Suggestion completed.

IO071996 110100-110718 NONAME

TC 07B. Agree.

 

IO081996 112612-120712 NONAME

TC 08B. Agree.

 

Notes for 1996:

The ATCR data are on p. 216-236 and p. 299-304.

Year: 1997

JTWC ARCHIVE

Storm ID/Period/Name

ATCR

Remarks and actions

IO011997 051300-052006 NONAME

ID: TC-01B. Agree.

 

IO021997 091918-092718 NONAME

ID: TC-02B. 092000-092718. Less data at the beginning. Suggestion: replace JTWC ARCHIVE data.

Suggestion completed.

IO031997 110400-111006 NONAME

ID: TC-03A. Agree.

 

IO041997 110212-111400 NONAME

ID: TC-04A. Agree.

 

Notes for 1997:

The ATCR data are on p. 128-130 and p. 193-195.

Year: 1998

JTWC ARCHIVE

Storm ID/Period/Name/A or B

ATCR

Remarks and actions

IO011998 051300-052018 NONAME B

TC 01B. Agree.

 

IO021998 052706-052900 NONAME A

TC 02A. Agree.

 

IO031998 060106-060912 NONAME A

TC 03A. Agree.

 

IO041998 092812-100100 NONAME A

TC 04A. Agree.

 

IO051998 101500-101800 NONAME A

TC 05A. Agree.

 

IO061998 111300-111600 NONAME B

TC 06B. Agree.

 

IO071998 111600-112300 NONAME B

TC 07B. Agree.

 

IO081998 121118-121718 NONAME A

TC 08A. Agree.

 

 

Year: 1999

JTWC ARCHIVE

Storm ID/Period/Name/A or B

ATCR

Remarks and actions

IO011999 013000-020418 NONAME B

TC01B 012918-020421. Agree. ATCR provides TC Period with warning times.

 

IO021999 051500-052112 NONAME A

TC02A 051609-052109. Agree. ATCR provides TC Period with warning times.

 

IO031999 060806-061118 NONAME B

TC03B 061015-061103. Agree. Two warnings.

 

IO041999 101500-101812 NONAME B

TC04B 101521-101809. Agree.

 

IO051999 102500-103012 NONAME B

TC05B 102603-110300. Agree. Graphic data. Typo: According to ATCR, "JTWC issued the 13th and final warning at 2010300Z November." The 2010300Z should be 030000Z.

 

 Notes for 1999:

The synoptic hours of ATCR data-time group are mixed, such as 00, 03, 09, , 18, 21Z.

Year: 2000

JTWC ARCHIVE

Storm ID/Period/Name/A or B

ATCR

Remarks and actions

IO012000 101418-101818 NONAME B

TC01B 101600-101812. Agree.

 

IO022000 102518-102806 NONAME B

TC02B 102718-102806. Agree.

 

IO032000 112606-120118 NONAME B

TC03B 112612-120506. Agree.

 

IO042000 122306-122812 NONAME B

TC04B 122506-122818. Agree.