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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 Admiral Pocock cruise from Bengal to Cape Town started at 1768-05-10 [dataset]. British Library, London, United Kingdom, PANGAEA, https://doi.org/10.1594/PANGAEA.747219, 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: -23.600366 * Median Longitude: 45.863171 * South-bound Latitude: -36.100000 * West-bound Longitude: -3.000000 * North-bound Latitude: 4.500000 * East-bound Longitude: 92.650000
Date/Time Start: 1768-05-10T06:00:00 * Date/Time End: 1768-07-30T12:00:00
Event(s):
Admiral_Pocock_17680510_BL_L/MAR/B/498G * Latitude Start: 20.120000 * Longitude Start: 88.500000 * Latitude End: -39.130000 * Longitude End: 22.150000 * Date/Time Start: 1768-05-10T00:00:00 * Date/Time End: 1768-07-30T00:00:00 * Campaign: Cliwoc_cruise * Method/Device: Underway cruise track measurements (CT) * Comment: Ship: Admiral Pocock, Voyage: Bengal - Cape Town, 1st Observer: Thomas Riddell (Captain), Company: EIC
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 State of the sea descriptionState sea descr
17 ClearnessClearness
18 GustsGusts1 If wind gusts are reported
19 Precipitation/RainRain1 If rain was reported
20 FogFog1 If fog was reported
21 Snow typeSnow1 If snow was reported
22 ThunderThunder1 If thunder and or lightning was reported
23 HailHail1 If hail was reported
24 Sea iceSea ice1 If sea-ice or icebergs were reported
25 IdentificationIDCLIWOC 2.1 line number
Size:
1320 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 
State sea descr
17 
Clearness
18 
Gusts
(1 If wind gusts are reported)
19 
Rain
(1 If rain was reported)
20 
Fog
(1 If fog was reported)
21 
Snow
(1 If snow was reported)
22 
Thunder
(1 If thunder and or lightning...)
23 
Hail
(1 If hail was reported)
24 
Sea ice
(1 If sea-ice or icebergs were...)
25 
ID
(CLIWOC 2.1 line number)
1768-05-10T06:004.5088.052492.6SBE1/2E40.001WBS, SSW, SW, SBW, WSWLIGHT BREEZES, MID SQUALLYHARD RAINFIRST FAIR, LATTER CLOUDY01001003122
1768-05-11T06:003.7888.303509.3SSE56.001NWBW, W, SWBW, SSW, NBWFIRST AND LATTER FRESH BREEZES, MID LIGHT BREEZES WITH CALMS AND SQUALLSRAIN01001003123
1768-05-12T06:002.6788.9522619.0SSE1/4E90.001SWBW, WBS, SWFRESH GALES AND SQUALLYRAINLARGE SWELL FROM SW01000003124
1768-05-13T06:001.0289.792599.3SSE1/2E104.000WBS, WBSFIRST AND LATTER PLEASANT GALE, MID FRESH BREEZES WITH HARD SQUALLSRAIN01000003125
1768-05-14T06:00-0.4790.872599.3SE1/2E108.000WBSFIRST AND MID PLEASANT GALES, LATTER FRESH BREEZES AND SQUALLYRAIN01000003126
1768-05-15T06:00-1.6591.65315SEBS85.000NW, SWBW, NW, NWVARIABLEVARIABLE00000003127
1768-05-16T06:00-2.3391.973152.6SSE1/2E42.000SSW, NNE, EBS, NWLIGHT BREEZES AND CALM00000003128
1768-05-17T06:00-3.6392.5089SSE86.00-1EBN, ENE, NEBN, NW, WBS, EVARIABLEVARIABLE00000003129
1768-05-18T06:00-5.4092.65157S3/4E69.00-1SEBE, ENE, E, EBS, ESE, SSEVARIABLEVARIABLE00000003130
1768-05-19T06:00-7.3792.65789.3S100.00-1E, NE, EBNFRESH BREEZES, MID SQUALLYHARD RAINFIRST FAIR, LATTER CLOUDY01000003131
1768-05-20T06:00-9.1792.30449.3SBW104.00-1NNE, NE, NEFRESH BREEZESFIRST AND MID CLOUDY, LATTER FAIR00000003132
1768-05-21T06:00-10.7791.65446.7SSW100.00-1EBS, NEPLEASANT BREEZESFAIR00000003133
1768-05-22T06:00-12.3390.47679.3SW1/4S102.00-1EBS, ENEPLEASANT GALESGREAT SWELL FROM SEFAIR00000003134
1768-05-23T06:00-13.5289.19549.3S45W107.00-2ESE, NEBEPLEASANT GALESFAIR00000003135
1768-05-24T06:00-14.9388.80122S53W148.00-2E, VARIABLE, ESE, SEBEVARIABLEVARIABLEGREAT SWELL FROM SE00000003136
1768-05-25T06:00-16.1884.8914412.3S54W160.00-2SE, SEBS, SEBSFRESH TRADE SOME SQUALLSRAIN01000003137
1768-05-26T07:00-17.2082.2214312.3WSW1/4S170.00-3SEBSFRESH TRADE AND SQUALLYCLOUDY00000003138
1768-05-27T07:00-18.1279.9214112.3S64W146.00-5SEBSFRESH TRADE SOME SQUALLSCLOUDY00000003139
1768-05-28T07:00-19.0077.9214112.3S63W127.00-5E, ESE, SEBSFRESH TRADEVARIABLE00000003140
1768-05-29T07:00-20.1375.621079.3S63W145.00-6ESEMODERATE TRADE, SOME SQUALLSRAINFIRST FAIR, MID AND LATTER CLOUDY01000003141
1768-05-30T07:00-20.7772.9710712.3WBS1/2S156.00-6ESEFRESH TRADEVARIABLE00000003142
1768-05-31T07:00-21.3370.771169.3S71W130.00-8SBE, SEBEMODERATE TRADE, SOME SQUALLSSMALL RAINCLOUDY01000003143
1768-06-01T07:00-22.0369.14716.7WSW99.00-8VARIABLE, EBNMODERATE BREEZESFAIR00000003144
1768-06-02T07:00-22.2868.17712.6S73W56.00-8SBW, SSW, EBNLIGHT BREEZES AND SOME SQUALLSRAINCLOUDY01000003145
1768-06-03T08:00-22.7066.851676.7S69W79.00-13SSE, EBN, SWBS, SMODERATE BREEZESCLOUDY00000003146
1768-06-04T08:00-23.0564.922016.7WBS1/2S111.00-13SSW, SBW, SBE, SE, SWBSPLEASANT BREEZESFAIR00000003147
1768-06-05T08:00-23.9762.591566.7S66W140.00-13SSE, SBEPLEASANT BREEZES WITH SOME SQUALLSFAIR00000003148
1768-06-06T08:00-24.4361.121302.6S67W87.00-16ESE, SSE, SSW, SWBS, SEBSFIRST PLEASANT BREEZES, MID AND LATTER LIGHT BREEZES AND CALM WITH SQUALLSRAINFAIR01000003149
1768-06-07T08:00-24.9359.29198S75W104.00-16SSW, SW, SBW, SEBS, SWBSVARIABLEVARIABLE00000003150
1768-06-08T08:00-25.7357.571422.6S64W104.00-16NE, SSEFIRST AND MID FRESH BREEZES, LATTER LIGHT BREEZES SOME SQUALLSSMALL RAINFIRST AND MID FAIR, LATTER CLOUDY01000003151
1768-06-09T08:00-26.6056.0261S72W88.00-18E, EBS, NBE, EBNSQUALLYRAINCLOUDY01000003152
1768-06-10T08:00-27.2054.422862.6S67W94.00-18NWBN, NBW, SWBW, SW, NWBWFIRST AND MID FRESH BREEZES, LATTER LIGHT BREEZES AND CALM SOME SQUALLSRAIN01000003153
1768-06-11T08:00-27.0753.00230N76W78.00-18SWBW, SW, SSW, WSWVARIABLEVARIABLE00000003154
1768-06-12T09:00-27.7351.051809.3WSW113.00-23SBW, SBE, SSWFRESH BREEZES AND SOME SQUALLSRAINCLOUDY01000003155
1768-06-13T09:00-29.0348.991239.3SW3/4W136.00-23SE, SEBSFRESH BREEZESLIGHTNING IN THE NIGHTFAIR00001003156
1768-06-14T09:00-30.0046.39769.3WSW148.00-25E, ENE, EBSPLEASANT GALESHAZY00000003157
1768-06-15T09:00-29.9345.4920WBN48.00-25NBW, NWBW, WBS, NEVARIABLEVARIABLE00000003158
1768-06-16T09:00-29.0844.602569.3NW1/4W63.00-25W, WSW, SWBW, WBNFRESH BREEZES AND SQUALLYRAINCLOUDY01000003159
1768-06-17T09:00-28.3343.622119.3N58W62.00-25WSW, WBS, SWBW, SWBWFRESH BREEZES AND SQUALLYCLOUDY00000003160
1768-06-18T09:00-28.7843.552342.6S1/2W28.00-25SWBW, WNW, NWBW, NBW, WBSLIGHT BREEZES VARIABLE AND CALMFAIR00000003161
1768-06-19T09:00-30.0042.403139.3SW90.00-25WNW, WSW, WBS, WSW, NNWFRESH BREEZES AND HARD SQUALLSRAIN01001003162
1768-06-20T09:00-29.9542.222112.6WNW10.00-25WBS, WNW, NWBW, WBS, SWBWLIGHT BREEZES AND CALMFAIR00000003163
1768-06-21T09:00-29.8042.052341.0N47W11.00-25WSW, NNE, N, WBSLIGHT AIRS AND CALMFAIR00000003164
1768-06-22T09:00-30.2241.9931326.8S3/4W23.00-25NW, NWBW, W, WBS, NNWFIRST LIGHT BREEZES, MID AND LATTER INCREASING TO HARD GALE WITH SQUALLSRAINLARGE SEA01000003165
1768-06-23T09:00-29.7042.6418922.6NE49.00-25SSW, SWBSSTRONG GALESRAIN01000003166
1768-06-24T09:00-30.1041.171786.7WBS1/2S81.00-25SBE, SSE, SSWFIRST AND MID SQUALLY, LATTER MODERATERAINCLOUDY01000003167
1768-06-25T09:00-30.9039.591336.7SWBW3/4W91.00-25SE, E, SSEMODERATE BREEZESCLOUDY00000003168
1768-06-26T10:00-32.0037.37659.3S65W126.00-25ENE, NE, EPLEASANT FRESH BREEZESMODERATE00000003169
1768-06-27T10:00-33.1834.11199.3S70W150.00-26NNE, NEPLEASANT FRESH BREEZESFAIR00000003170
1768-06-28T10:00-33.9731.433582.6S71W117.00-25NBE, N, NNW, NW, SWBW, NNEFIRST AND MID FRESH BREEZES, LATTER LIGHT WINDSHAZY00000003171
1768-06-29T10:00-34.5728.75234S72W115.00-25NE, NNE, N, NBW, NW, WBSVARIABLEHAZY00000003172
1768-06-30T10:00-34.1528.8927919.0N50W40.00-25WBN, NW, NWBWFRESH GALES WITH SQUALLSRAIN01000003173
1768-07-01T10:00-34.3328.272342.6W3/4N8.00-25WBN, SW, ESE, WBSLIGHT WINDS AND CALM00000003174
1768-07-02T10:00-35.3525.40569.3SWBW1/2W133.00-23NE, NBE, EBNPLEASANT FRESH BREEZESFAIR00000003175
1768-07-03T10:00-35.5724.382.6WNW30.00-23LIGHT BREEZES AND CALM, SOME SQUALLSRAINCLOUDY01000003176
1768-07-04T10:00-36.0023.97247NE5.00-23WBN, WBS, WNW, NWBW, WFRESH BREEZES DECREASING, LATTER LIGHT00000003177
1768-07-05T10:00-36.1022.8031519.0W1/2N34.00-23NBW, NNW, WNW, S, NNWFIRST LIGHT BREEZES, MID AND LATTER FRESH GALESFAIR00000003178
1768-07-06T11:00-35.6022.012492.6NWBN30.00-21WBN, W, WNW, WLIGHT BREEZES AND CALMFIRST FAIR, MID AND LATTER CLOUDY00000003179
1768-07-07T11:00-35.3320.55241.0WBN49.00-21WSW, NEPLEASNT BREEZES DECREASING TO LIGHT AIRS AND CALMFAIR00000003180
1768-07-08T11:00-35.5020.19272SBE3/4E16.00-21NWBW, NW, WNWFIRST MODERATE, MID AND LATTER SOME SQUALLSRAINFAIR01000003181
1768-07-09T11:00-35.6720.3926019.0E1/4N33.00-21NWBW, WBS, WBNFRESH GALESCLOUDY00000003182
1768-07-10T11:00-35.1820.002499.3N1/2E57.00-21WBS, WSW, SW, SSW, SBW, WFRESH BREEZES AND FREQUENT SQUALLSRAIN01000003183
1768-07-11T11:00-35.6218.681376.7SW94.00-21SE, E, SSEMODERATE BREEZESCLOUDY00000003184
1768-07-12T11:00-35.5518.00922.6W1/2N33.00-21SE, SWBW, SW, ESELIGHT BREEZES AND CALMFAIR00000003185
1768-07-13T11:00-34.9716.831849.3NWBW69.00-19SE, E, ESE, SSWFIRST LIGHT AIRS AND CALM, INCREASING LATTERLY TO PLEASANT GALESMOOTH WATERFAIR00000003186
1768-07-14T11:00-35.2015.68499.3WSW1/4W60.00-19NE, N, NWBW, NNW, NWBN, NNW, ENEFIRST MODERATE BREEZES, MID AND LATTER FRESH BREEZES WITH SOME SQUALLSRAIN01000003187
1768-07-15T11:00-33.9515.323309.3NBW3/4W54.00-19WNW, WBS, NW, WNW, NBWFRESH BREEZES SOME SQUALLSRAINHAZY01000003188
1768-07-16T11:00-32.6815.032858.7NBW1/4W58.00-19WNW, WBN, NWBN, NWBWFRESH BREEZES DECREASINGFAIR00000003189
1768-07-17T11:00-31.7714.403072.6NNW3/4W51.00-19NW, WSW, WBS, WSW, NWBNLIGHT BREEZESMODERATE00000003190
1768-07-18T11:00-30.3312.2923110.0NW1/2W135.00-17SW, SSW, SBE, SEBS, WSWFIRST MODERATE, MID AND LATTER FRESH AND PLEASANT GALEHAZY00000003191
1768-07-19T11:00-28.4010.0110712.3NW1/2N181.00-17SE, SEBEFRESH TRADEFAIR00000003192
1768-07-20T11:00-27.158.861176.7N37W94.00-18S, SSW, SEPLEASANT BREEZESHAZY00000003193
1768-07-21T11:00-26.438.031852.6N35W68.00-18WSW, WBN, SSW, SSWLIGHT BREEZESFAIR00000003194
1768-07-22T12:00-25.407.352102.6N38W63.00-15WBS, SWBS, SWLIGHT BREEZESCLOUDY00000003195
1768-07-23T12:00-23.436.001439.3N30W145.00-15SE, E, SSEFRESH BREEZES AND FREQUENT SQUALLS00000003196
1768-07-24T12:00-21.604.871089.3N26W129.00-16SEBEPLEASANT GALESFAIR00000003197
1768-07-25T12:00-20.284.051426.7N26W82.00-16SSEPLEASANT BREEZESFAIR00000003198
1768-07-26T12:00-18.683.261426.7N24W93.00-16SSEPLEASANT BREEZESFAIR00000003199
1768-07-27T12:00-17.252.461549.3N25W95.00-15SBEPLEASANT GALESCLOUDY00000003200
1768-07-28T12:00-16.201.561436.7N36W78.00-15SBE, SSEMODERATE BREEZESFAIR00000003201
1768-07-29T12:00-16.00-0.351439.3N85W105.00-15SSEPLEASANT TRADESMOOTH WATERFAIR00000003202
1768-07-30T12:00-15.97-3.001459.3ST HELENAWNW10W148.00-13SSEFIRST AND MID PLEASANT BREEZES, LATTER FRESH BREEZES WITH SOME SQUALLSRAINCLOUDY01000003203