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García-Herrera, Ricardo; Können, Gunther P; Wheeler, Dennis A; Prieto, Maria del Rosario; Jones, Philip D; Koek, Frits B (2010): Meteorological observations during ISIS cruise from Madras to Cruising Towards Rodriquez started at 1783-07-13 [dataset]. National Maritime Museum, Greenwich, United Kingdom, PANGAEA, https://doi.org/10.1594/PANGAEA.749837, In: Jones, Philip D; Wheeler, Dennis A; Können, Gunther P; Koek, Frits B; Prieto, Maria del Rosario; García-Herrera, Ricardo (2007): Climatological observations from ship logbooks between 1750 and 1854 (release 2.1) [dataset publication series]. PANGAEA, https://doi.org/10.1594/PANGAEA.611088

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Related to:
García-Herrera, Ricardo; Können, Gunther P; Wheeler, Dennis A; Prieto, Maria del Rosario; Jones, Philip D; Koek, Frits B (2005): CLIWOC: A Climatological Database for the World's Oceans 1750–1854 (and 10 more publications about CLIWOC results in the same volume). Climatic Change, 73(1-2), 1-12ff, https://doi.org/10.1007/s10584-005-6952-6
Funding:
Fifth Framework Programme (FP5), grant/award no. EVK2-CT-2000-00090: Climatological Database for the Worlds Oceans: 1750-1854
Coverage:
Median Latitude: 2.122222 * Median Longitude: 75.778889 * South-bound Latitude: -9.630000 * West-bound Longitude: 64.930000 * North-bound Latitude: 14.250000 * East-bound Longitude: 87.800000
Date/Time Start: 1783-07-13T07:00:00 * Date/Time End: 1783-08-17T07:00:00
Event(s):
Isis_17830713_NMM_ADM/L/J14 * Latitude Start: 12.100000 * Longitude Start: 80.500000 * Latitude End: 13.280000 * Longitude End: 74.020000 * Date/Time Start: 1783-07-13T00:00:00 * Date/Time End: 1783-08-17T00:00:00 * Campaign: Cliwoc_cruise * Method/Device: Underway cruise track measurements (CT) * Comment: Ship: Isis (4th Rate Frigate), Voyage: Madras - Cruising Towards Rodriquez, 1st Observer: Christopher Haliday (Captain), Company: Royal Navy, Other ship information: 50G 1044BM
Parameter(s):
#NameShort NameUnitPrincipal InvestigatorMethod/DeviceComment
DATE/TIMEDate/TimeGeocode
LATITUDELatitudeGeocode
LONGITUDELongitudeGeocode
Wind directiondddegWind direction (from which the wind is blowing) in whole degrees from: 1-360; 361 = calm, 362 = variable. It is not clear from many logbook entries whether the wind direction has been corrected for the magnetic variation (or declination). To avoid any misunderstanding, all winds from reports that included a valid position in the period 1750-1854 were corrected. All other wind directions are given without being corrected.
Wind speedffm/scalculated from the descriptive terms of wind force given in the observations
LandmarkLandmarkName of first landmark
BearingBearingBearing of the first landmark
Distance to landmarkDistancearbitrary unitsDistance to the first landmark
CourseCourseCourse of the ship during the past 24 hours
10 DistanceDistancearbitrary unitsDistance travelled during the previous 24 hours
11 DeclinationDecldegIt is generally accepted by the CLIWOC team that the wind directions, reported by the ships officers, were relative to the magnetic North direction. Navigators were well aware of the difference between the true and magnetic north direction, but the compasses (we assumed that the bearing-compasses were mostly used for determining the wind direction) were not always adjusted. Therefore the wind direction has to be corrected. The magnetic declination (or variation, as it is known on board ships) is given for the whole CLIWOC period (1750-1850) for every 5x5 degree square. The number was added to the wind direction to get the true wind direction.
12 Wind direction descriptionWind dir descrAll reported wind directions on this day. The wind direction is the direction that points to where the wind comes from.
13 Wind force descriptionWind force descrAll reported wind forces on this day
14 Present weatherwwWeather description
15 Precipitation descriptionPrecip descr
16 ClearnessClearness
17 GustsGusts1 If wind gusts are reported
18 Precipitation/RainRain1 If rain was reported
19 FogFog1 If fog was reported
20 Snow typeSnow1 If snow was reported
21 ThunderThunder1 If thunder and or lightning was reported
22 HailHail1 If hail was reported
23 Sea iceSea ice1 If sea-ice or icebergs were reported
24 CommentComment
25 IdentificationIDCLIWOC 2.1 line number
Size:
684 data points

Data

Download dataset as tab-delimited text — use the following character encoding:


Date/Time

Latitude

Longitude

dd [deg]
(Wind direction (from which th...)

ff [m/s]
(calculated from the descripti...)

Landmark
(Name of first landmark)

Bearing
(Bearing of the first landmark)

Distance [arbitrary units]
(Distance to the first landmark)

Course
(Course of the ship during the...)
10 
Distance [arbitrary units]
(Distance travelled during the...)
11 
Decl [deg]
(It is generally accepted by t...)
12 
Wind dir descr
(All reported wind directions ...)
13 
Wind force descr
(All reported wind forces on t...)
14 
ww
(Weather description)
15 
Precip descr
16 
Clearness
17 
Gusts
(1 If wind gusts are reported)
18 
Rain
(1 If rain was reported)
19 
Fog
(1 If fog was reported)
20 
Snow
(1 If snow was reported)
21 
Thunder
(1 If thunder and or lightning...)
22 
Hail
(1 If hail was reported)
23 
Sea ice
(1 If sea-ice or icebergs were...)
24 
Comment
25 
ID
(CLIWOC 2.1 line number)
1783-07-13T07:0011.9080.982266.7FORT ST DAVIDW16S31E47.001SE-SWMODERATECLOUDY0000000120999
1783-07-14T07:0011.3880.651709.3PORTA NOVAN61W11S35E35.001WSW-SBELIGHT AIRS, MID AND LATTER FRESH BREEZESCLEAR MID AND LATTER CLOUDY0000000121000
1783-07-15T07:0010.5080.532262.6POINT PEDRAS37E15S45E57.001SE-SWLIGHT BREEZESCLOUDY0000000121001
1783-07-16T07:009.9580.421812.6POINT PEDRAS71E9S12W32.001SW-SLIGHT BREEZESHAZY0000000121002
1783-07-17T07:007.8781.702159.3BATTACALSS79W9S30E144.001WSW-SWBSFRESH BREEZESCLEAR0000000121003
1783-07-18T06:006.7082.683162.6FRIARS HOODN41W18S39E53.001SE-NWLIGHT BREEZES0000000121004
1783-07-19T06:004.7083.932372.6LITTLE BASSASN45W55S29E53.001SW-SWBWMODERATE, MID AND LATTER LIGHT BREEZESCLOUDY, MID AND LATTER FAIR0000000121005
1783-07-20T06:002.6885.223629.3LITTLE BASSASN37:44W104S31E150.001WSW, VARIABLEFRESH BREEZES, MID SQUALLYTHUNDER AND LIGHTNINGRAINHAZY0100100121006
1783-07-21T06:000.6786.272269.3LITTLE BASSASN36:30W142S34E116.001WSW-SWHARD SQUALLS, MID AND LATTER FRESH BREEZESRAINCLOUDY0100000121007
1783-07-22T06:00-0.9086.932266.7LITTLE BASSASN33:40W176S33E105.001SBW-SWFRESH BREEZES AND SQUALLY, LATTER PART MODERATECLOUDY0000000121008
1783-07-23T06:00-2.6287.233626.7LITTLE BASSASN29:40W211S10E102.000WBS, VARIABLEMODERATECLOUDY0000000121009
1783-07-24T06:00-4.0287.433266.7LITTLE BASSASN27:33W234S8E83.000WBS-NWBNMODERATE BREEZESCLEAR0000000121010
1783-07-25T06:00-5.4087.80174ISLE DIEGO RAYSN70W335S15E83.000SBW-S1/2EHEAVY SHOWERS OF RAIN1100000121011
1783-07-26T06:00-6.4587.702701.0ISLE DIEGO RAYSN66:34W341S5W68.000SE-WLIGHT BREEZES INCLINABLE TO CALM, MID SQUALLSRAINCLOUDY0100000121012
1783-07-27T06:00-7.9586.7089ISLE DIEGO RAYSN60:48W336S35W104.00-1SW-EFRESH BREEZES AND HARD SQUALLS, LATTER SQUALLYRAINHAZY0100000121013
1783-07-28T06:00-9.2283.701129.3ISLE DIEGO RAYSN51W299S68W193.00-1SE-ESEFRESH BREEZES WITH SQUALLSRAINHAZY0100000121014
1783-07-29T07:00-9.6080.151129.3BASSES DE CHARGOSN69:54W161S84W214.00-1ESEFRESH BREEZES, MID SQUALLYCLOUDY0000000121015
1783-07-30T07:00-9.6376.73133BASSES DE CHARGOSN55:30W101S88W205.00-2SEMODERATE, LATTER SQUALLYCLOUDY0000000121016
1783-07-31T07:00-9.3573.48133BASSES DE CHARGOSN21W56N86W195.00-2SEFRESH BREEZES, MID AND LATTER SQUALLSRAINHAZY0100000121017
1783-08-01T07:00-8.3270.22131BASSES DE CHARGOSN57E54N70W209.00-4SEFRESH BREEZES, LATTER SQUALLYRAINCLOUDY0100000121018
1783-08-02T07:00-7.2368.501446.7BASSES DE CHARGOSN82E81N63W115.00-3ESE-SEBSFRESH BREEZES AND SQUALLY, LATTER MODERATE BREEZESCLOUDY0000000121019
1783-08-03T08:00-5.3667.481306.7ISLE PEDRO BANHASS34:09W35N27W133.00-5SEMODERATE BREEZESCLOUDY0000000121020
1783-08-04T08:00-3.4866.943622.6ISLE DIEGO RAYSN52E87N15W115.00-5VARIABLELIGHT BREEZES AND SQUALLYRAIN0100000121021
1783-08-05T08:00-1.3866.391656.7ISLE DIEGO RAYSN80E80N13W123.00-4SBEMODERATE BREEZESHAZY0000000121022
1783-08-06T08:000.4265.871996.7ISLE DIEGO RAYSN75:27E90N15W113.00-4SSWMODERATE BREEZESHAZY0000000121023
1783-08-07T08:002.4366.001999.3MILQUIEXN43:57E191N6E117.00-4SSWFRESH BREEZESHAZY0000000121024
1783-08-08T08:003.9266.342332.6MILQUIEXN46E154N15E94.00-3WNW-SWBWLIGHT BREEZESCLOUDY0000000121025
1783-08-09T08:004.9265.962676.7MILQUIEXN56:59E156N16W69.00-3WBN, WMODERATE BREEZESHAZY0000000121026
1783-08-10T08:006.0565.64222MILQUIEXN64:53E151N15W65.00-3SWLIGHT AIRS INCLINABLE TO CALM, LATTER SQUALLYRAIN0100000121027
1783-08-11T08:007.0765.342221.0MILQUIEXN72E147N16W61.00-3SWMODERATE, THEN LIGHT AIRS INCLINABLE TO CALMHAZY0000000121028
1783-08-12T08:009.1365.202679.3TEAKELIPORN81:30E135N3W124.00-3WSW, WMODERATE BREEZES, AM FRESH BREEZESCLOUDY, AM HAZY0000000a trivial correction was made in this observation121029
1783-08-13T08:0012.1064.93233LACCODIVES ISLANDN73E98N4W186.00-3WBS-SWBWFRESH BREEZES, AM SQUALLYHAZY0000000121030
1783-08-14T08:0014.2566.722569.3MANGULORES79:51E161N40E166.00-3WBSFRESH BREEZESHAZY0000000121031
1783-08-15T07:0013.9269.862349.3MANGULORES78:30E99S82E187.00-2SWBWFRESH BREEZESHAZY0000000121032
1783-08-16T07:0013.4772.402342.6MANGULORES78:23E48S79E153.00-2SWBWFRESH BREEZES, AM LIGHT BREEZESHAZY, AM CLEAR0000000121033
1783-08-17T07:0013.2874.022256.7MANGULORES70E16S83E110.000SWMODERATE BREEZESHAZY0000000121034