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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 TARTAR cruise from Bombay to Mocha started at 1750-04-01 [dataset]. National Maritime Museum, Greenwich, United Kingdom, PANGAEA, https://doi.org/10.1594/PANGAEA.747105, 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: 13.733214 * Median Longitude: 58.619643 * South-bound Latitude: 11.100000 * West-bound Longitude: 44.550000 * North-bound Latitude: 17.970000 * East-bound Longitude: 69.600000
Event(s):
Tartar_17500401_NMM_ADM/L/T17 * Latitude Start: 18.500000 * Longitude Start: 72.820000 * Latitude End: 12.370000 * Longitude End: 45.980000 * Campaign: Cliwoc_cruise * Method/Device: Underway cruise track measurements (CT) * Comment: Ship: Tartar (Frigate), Start of voyage: 1750-04-12, End of voyage: 1750-05-11, Voyage: Bombay - Mocha, 1st Observer: William Brett (Captain), Company: Royal Navy, Other ship information: 20G 442BM
Parameter(s):
#NameShort NameUnitPrincipal InvestigatorMethod/DeviceComment
Date/time startDate/time start
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
--1 If position is considered to be coastal (in port or near coastal disturbances)
10 CourseCourseCourse of the ship during the past 24 hours
11 DistanceDistancearbitrary unitsDistance travelled during the previous 24 hours
12 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.
13 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.
14 Current direction descriptionCur dir descrDirection of the current. This direction points to where the current is flowing towards to.
15 Current speed descriptionV descr
16 Wind force descriptionWind force descrAll reported wind forces on this day
17 Present weatherwwWeather description
18 ClearnessClearness
19 GustsGusts1 If wind gusts are reported
20 Precipitation/RainRain1 If rain was reported
21 FogFog1 If fog was reported
22 Snow typeSnow1 If snow was reported
23 ThunderThunder1 If thunder and or lightning was reported
24 HailHail1 If hail was reported
25 Sea iceSea ice1 If sea-ice or icebergs were reported
26 IdentificationIDCLIWOC 2.1 line number
Size:
583 data points

Data

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


Date/time start

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)

-
(1 If position is considered t...)
10 
Course
(Course of the ship during the...)
11 
Distance [arbitrary units]
(Distance travelled during the...)
12 
Decl [deg]
(It is generally accepted by t...)
13 
Wind dir descr
(All reported wind directions ...)
14 
Cur dir descr
(Direction of the current. Thi...)
15 
V descr
16 
Wind force descr
(All reported wind forces on t...)
17 
ww
(Weather description)
18 
Clearness
19 
Gusts
(1 If wind gusts are reported)
20 
Rain
(1 If rain was reported)
21 
Fog
(1 If fog was reported)
22 
Snow
(1 If snow was reported)
23 
Thunder
(1 If thunder and or lightning...)
24 
Hail
(1 If hail was reported)
25 
Sea ice
(1 If sea-ice or icebergs were...)
26 
ID
(CLIWOC 2.1 line number)
1750-04-12T07:0017.9769.603572.6ST JOHNSN55:00E71S62:00W45.00-3NBW, WNW, NLITTLE WINDSFAIR0000000250138
1750-04-13T07:0017.4869.033352.6ST JOHNSN52:00E85SW1/4W43.00-3N, NNWNNW2.5LITTLE WINDSFAIR0000000250139
1750-04-14T07:0016.9568.183462.6ST JOHNSN54:00E105SWBW58.00-3NW, NNW, NBWLITTLE WINDSFAIR0000000250140
1750-04-15T08:0016.7267.203442.6ST JOHNSN57:00E123S76:00W58.00-5NNW, NBWLITTLE WINDSFAIR0000000250141
1750-04-16T08:0016.5865.863442.6ST JOHNSN62:00E146S84:00W78.00-5N, NBWLIGHT BREEZESHAZY0000000250142
1750-04-17T08:0016.3364.663442.6ST JOHNSN64:00E168S78:00W71.00-5N, NNE, NBWLIGHT BREEZESHAZY0000000250143
1750-04-18T08:0016.3363.53296.7ST JOHNSN67:00E188W65.00-5NBE, ENE, NEBNMODERATECLEAR0000000250144
1750-04-19T08:0016.3062.96856.7ST JOHNSN68:00E198W1/2S33.00-5NE, NNE, N, EMODERATECLEAR0000000250145
1750-04-20T08:0015.8862.512546.7ST JOHNSN67:00E210S46:00W37.00-5E, N, SW, WBSMODERATECLEAR0000000250146
1750-04-21T08:0015.2362.152756.7ST JOHNSN64:00E222S28:00W45.00-6WBS, W, NW, WBNMODERATECLEAR0000000250147
1750-04-22T08:0014.6761.883092.6ST JOHNSN63:00E232S24:00W39.00-6W, WBN, NWLIGHT BREEZESCLOUDY0000000250148
1750-04-23T08:0014.4061.533322.6ST JOHNSN62:00E240S52:00W26.00-6CALM, NW, NNWSW1LIGHT BREEZESCLOUDY0000000250149
1750-04-24T08:0014.0761.001291.0ST JOHNSN62:00E253S57:00W37.00-6NWBN, NW, ENE, SELIGHT AIRSCLEAR0000000250150
1750-04-25T08:0013.0260.161291.0ST JOHNSN60:00E277S37:00W80.00-6NE, ENE, EBS, SELIGHT AIRSCLEAR0000000250151
1750-04-26T08:0012.2259.61831.0ST JOHNSN58:00E295SWBS58.00-7ESE, ENE, ELIGHT AIRSCLEAR0000000250152
1750-04-27T08:0011.6258.98836.7ST JOHNSN57:00E312S46:00W52.00-7EBS, SW, E1ST AND LATTER MODERATE, MID CALM0000000250153
1750-04-28T08:0011.3058.311732.6ST JOHNSN58:00E326S64:00W44.00-7ESE, SLITTLE WINDSFAIR0000000250154
1750-04-29T08:0011.1557.28362.6ST JOHNSN59:00E345W3/4S61.00-9EBN, NELITTLE WINDSFAIR0000000250155
1750-04-30T08:0011.1056.15362.6ST JOHNSN61:00E365W1/4S67.00-9E, NELITTLE WINDSFAIR0000000250156
1750-05-01T08:0011.2055.21362.6ST JOHNSN62:00E379N84:00W56.00-9ENE, NELITTLE WINDSFAIR0000000250157
1750-05-02T08:0011.1354.411822.6ST JOHNSN63:00E394S85:00W48.00-9EBN, SE, SBWLITTLE WINDSFAIR0000000250158
1750-05-03T08:0011.1353.031716.7ST JOHNSN64:00E417W82.00-9SE, SSE, SBW, SMODERATECLEAR0000000250159
1750-05-04T09:0011.8851.582936.7MOUNT FELIX10N62:00W97.00-11SWBS, SSW, S, SSE, NWBWMODERATECLEAR0000000250160
1750-05-05T09:0012.2050.802376.7HEADLAND OF CAPE GAURDAFOYSEBS6-11SSW, NW, NNW, CALM, WSWMODERATECLEAR0000000250161
1750-05-06T00:0012.03135CAPE ST PETERWSW1/2S7NBW, NNW, SBE, CALM, SEFIRST PART MODERATE, MID PART CALM0000000250162
1750-05-07T00:0011.5068CAPE ST PETERSEBS8N, CALM, EBN, ENEFIRST PART MODERATE, MID PART CALM0000000250163
1750-05-08T09:0011.7547.95680.0THE TABLE HILLS1/2W4-11ENE, CALM, ESE, SE, EBNFIRST PART FRESH WINDS, MID AND LATTER PARTS CALM0000000250164
1750-05-09T09:0011.2747.203486.7THE WHITE ROCKSWBS1/2S21-12NE, EBN, E, CALM, NMODERATE AND CALM0000000250165
1750-05-10T09:0012.1546.04446.7THE WHITE ROCKS53:00E29N58:00W88.00-12NBE, NNE, NEBEMODERATEFAIR0000000250166
1750-05-11T09:0012.5044.552136.7ADEN HEADNEBE10-12NE, ENE, CALM, SSE, SWMODERATEFAIR0000000250167