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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 POCOCK cruise from Java Head to St. Helena started at 1765-01-16 [dataset]. British Library, London, United Kingdom, PANGAEA, https://doi.org/10.1594/PANGAEA.751247, 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: -25.291370 * Median Longitude: 51.868630 * South-bound Latitude: -35.980000 * West-bound Longitude: -5.860000 * North-bound Latitude: -8.070000 * East-bound Longitude: 105.760000
Date/Time Start: 1765-01-16T05:00:00 * Date/Time End: 1765-03-30T12:00:00
Event(s):
Pocock_17650116_BL_L/MAR/B/498E * Latitude Start: -6.070000 * Longitude Start: 105.770000 * Latitude End: -15.890000 * Longitude End: -5.750000 * Date/Time Start: 1765-01-16T00:00:00 * Date/Time End: 1765-03-30T00:00:00 * Campaign: Cliwoc_cruise * Method/Device: Underway cruise track measurements (CT) * Comment: Ship: Pocock, Voyage: Java Head - St Helena, 1st Observer: Ben Hooke (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:
1438 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)
1765-01-16T05:00-8.07105.7631315.4JAVA HEADN24E28S24W81.00-2WBN, W, WNW, NWMODERATE GALES, SOME SMART SQUALLSRAINCLOUDY0100000191013
1765-01-17T05:00-9.33104.51257JAVA HEADN11E50S7W77.00-2WSW, W, WNW, WBSSQUALLSUNSETTLED0000000191014
1765-01-18T05:00-10.42104.982466.7JAVA HEADN75S28E53.00-2WSW, SW, WBS, NW, WSWMODERATES SWELLFAIR0000000191015
1765-01-19T05:00-11.22105.332682.6JAVA HEADN4W100SSE55.00-2WNW, SW, WSW, SWBS, WLIGHT BREEZESFAIR0000000191016
1765-01-20T00:00-11.602481.0JAVA HEADN4W105S23.00SWBW, WNW, W, WSWLIGHT AIRS AND CALMGREAT SWELL FROM SFAIR0000000191017
1765-01-21T05:00-12.00105.581789.3JAVA HEADN9W110SE20.00-2SBE, SFIRST AND MID LIGHT AIRS, LATTER FRESH BREEZESFIRST FAIR, LATTER CLOUDY0000000191018
1765-01-22T05:00-12.38104.661672.6JAVA HEADN4E115WSW58.00-2SBE, SSE, SBELIGHT BREEZESGREAT SWELL TO SFAIR AND CLEAR0000000191019
1765-01-23T05:00-12.58103.841662.6JAVA HEADN12E124S76W50.00-3SBELIGHT BREEZESGREAT SWELL TO SFAIR0000000191020
1765-01-24T05:00-12.97102.991772.6JAVA HEADN22E146S65W55.00-3SSE, SBE, SLIGHT BREEZESS SWELLFAIR0000000191021
1765-01-25T05:00-13.40102.161556.7JAVA HEADN26E162S62W56.00-3SBW, SBE, SSEMODERATE BREEZESFIRST AND MID CLOUDY, LATTER FAIR0000000191022
1765-01-26T05:00-14.13101.141559.3JAVA HEADN32E173S53W74.00-3SE, SSEFIRST LIGHT BREEZES, LATTER PLEASANT TRADES SWELL0000000191023
1765-01-27T05:00-15.0299.1813215.4JAVA HEADN37E210S64W127.00-3SSE, SEMODERATE GALESFAIR0000000191024
1765-01-28T06:00-15.9796.841559.3JAVA HEADN40E248WSW146.00-3SSEPLEASANT TRADELARGE S SWELLFAIR0000000191025
1765-01-29T06:00-16.4795.14155JAVA HEADN45E280WBS1/2S103.00-3SSEFIRST FRESH BREEZES, MID AND LATTER DECREASINGFAIR0000000191026
1765-01-30T06:00-17.0593.141439.3JAVA HEADN48E320WBS1/2S122.00-3SEBS, SEBSPLEASANT TRADEFAIR0000000191027
1765-01-31T06:00-17.5790.1412019.0JAVA HEADN53E380WBS177.00-4SEBEFRESH GALESFAIR0000000191028
1765-02-01T06:00-18.4087.481209.3JAVA HEADN56E432WBS1/2S160.00-4ESE, SEBEPLEASANT TRADEFAIR0000000191029
1765-02-02T06:00-18.9584.5412012.3JAVA HEADN57E485WBS171.00-4SEBEFRESH TRADEFAIR0000000191030
1765-02-03T07:00-18.9582.281196.7JAVA HEADN60E528W129.00-5EBS, SEBEMODERATE BREEZESSMOOTH WATERFAIR0000000191031
1765-02-04T07:00-18.9579.7113015.4JAVA HEADN62E580W146.00-5ESE, SECONSTANT GALECLOUDY0000000191032
1765-02-05T07:00-19.3277.0410719.0MADAGASCARN78W640S81W153.00-6SEBE, EBS, ESEFRESH GALESPLEASANT0000000191033
1765-02-06T07:00-20.0074.3110719.0MADAGASCARS80W589S75W160.00-6EBS, SEBE, ESEFRESH GALESFAIR0000000191034
1765-02-07T07:00-20.8071.811279.3MADAGASCARS80W535S71W150.00-8SEPLEASANT GALESSMOOTH WATERFAIR0000000191035
1765-02-08T07:00-21.4269.4815018.1MADAGASCARS80W490S74W136.00-8SSEFRESH GALES DECREASINGFAIR0000000191036
1765-02-09T07:00-21.7567.941276.7MADAGASCARS80W460S71W88.00-8ESE, SSE, SBE, SEMODERATE BREEZESSW SWELLFAIR0000000191037
1765-02-10T08:00-22.2066.991590.0MADAGASCARS83W440S63W59.00-10S, SBELIGHT BREEZES TERMINATING IN A CALM0000000191038
1765-02-11T08:00-22.4766.513162.6MADAGASCARS84W420S60W32.00-10NWBNFIRST CALM, LATTER LIGHT BREEZESSMOOTH WATERFAIR0000000191039
1765-02-12T08:00-22.8765.913252.6MADAGASCARS84W407S56W41.00-13N, NNWLIGHT BREEZESFAIR0000000191040
1765-02-13T08:00-23.4365.23552.6MADAGASCARS84W392S56W45.00-13ENE, SBE, SE, E, ENELIGHT BREEZES, SOME LIGHT SQUALLSRAINFIRST AND MID CLOUDY, LATTER FAIR0100000191041
1765-02-14T08:00-24.0064.34662.6MADAGASCARS86W373S56W60.00-13EBS, EBNLIGHT BREEZESLARGE SW SWELLFAIR0000000191042
1765-02-15T08:00-24.5763.281222.6MADAGASCARS84W350S59W69.00-13E, ESE, SELIGHT BREEZES AND SQUALLYLIGHTNING IN NIGHTRAINGREAT SWELL FROM NWFIRST CLOUDY, MID FAIR, LATTER CLOUDY0100100191043
1765-02-16T08:00-25.2362.2997MADAGASCARS88W327S54W66.00-16EBS, SE, NE, ESE, ESELIGHT SQUALLSVARIABLESWELL0000000191044
1765-02-17T08:00-26.5560.43979.3MADAGASCARW290S52W129.00-16E, ESEMODERATE BREEZES INCREASING TO PLEASANT GALESSMOOTH WATERFAIR0000000191045
1765-02-18T08:00-28.3057.999419.0MADAGASCARN78W254S51W167.00-19SEBE, ESEFRESH GALES SOME INTERVENING SQUALLSFAIR0000000191046
1765-02-19T08:00-29.3755.3911419.0MADAGASCARN69W210S65W152.00-21EBN, SEFRESH GALES AND SQUALLYHAZY0000000191047
1765-02-20T08:00-30.0553.098015.4MADAGASCARN56W190S71W127.00-21ESE, E, EBS, EBSCONSTANT GALESFOLLOWING SWELLCLOUDY0000000191048
1765-02-21T09:00-30.7250.939015.4MADAGASCARN48W170S70W119.00-23VARIABLE, E, ESEMODERATE GALESSWELL FROM SWHAZY0000000191049
1765-02-22T09:00-31.0249.68221.0MADAGASCARN33W150S74W67.00-23ENE, NEFRESH BREEZES TERMINATING IN LIGHT AIRS0000000191050
1765-02-23T09:00-31.1249.14221.0MADAGASCARN30W140S78W28.00-23NBE, ESE, NELIGHT AIRS AND CALMSMOOTH WATERHAZY0000000191051
1765-02-24T09:00-31.4247.937815.4MADAGASCARN22W132S77W64.00-23NE, ENE, EBSLIGHT AIRS INCREASING TO A MODERATE GALESFAIR0000000191052
1765-02-25T09:00-31.3045.36346MADAGASCARN140S77W130.00-25N, NBEVERY FRESH GALE INCREASINGFIRST HAZY, LATTER CLOUDY0000000191053
1765-02-26T09:00-32.0245.13324MADAGASCARN11E163S76W44.00-25ESE, EBS, NBWVARIABLEUNSETTLED0000000191054
1765-02-27T09:00-32.4544.18431.0MADAGASCARN14E170S37W33.00-25NE, NNW, NW, NBW, SE, ENELIGHT AIRS AND CALMFIRST AND LATTER CLOUDY, MIDDLE FAIR0000000191055
1765-02-28T09:00-32.7342.94757.3MADAGASCARN22E190S75W64.00-26EBN, NNE, NBE, EBSINCREASING BREEZESSMOOTH WATERCLOUDY0000000191056
1765-03-01T09:00-33.3740.71345MADAGASCARN33E224S71W118.00-26N, NBEFIRST AND MID FRESH GALES, LATTER HARD SQUALLSTHUNDER AND LIGHTNING FORM NW - SERAINFIRST FAIR, MID CLOUDY0100100191057
1765-03-02T09:00-33.4739.5617726.8MADAGASCARN40E240S74W60.00-26SSWHARD GALES AND HEAVY SQUALLSLARGE SWELL0000000191058
1765-03-03T09:00-34.1238.1115415.4MADAGASCARN32E267S61W82.00-26SSE, ESE, EBS, EBN, SMODERATE GALESLARGE SWELL FROM SWFAIR0000000191059
1765-03-04T10:00-35.0835.816522.6CAPE BON ESPERENCEW1/2N340S63W129.00-25EBN, ENE, NE, NBE, EFIRST AND MID MODERATE GALES, LATER STRONG GALES WITH HARD SQUALLSRAINCLOUDY0100000191060
1765-03-05T10:00-35.2734.683356.7CAPE BON ESPERENCEW1/2N320S78W57.00-25SW, SSW, WSW, NFIRST FRESH GALES WITH HARD SQUALLS, MID AND LATTER MORE MODERATEDRIZZLING RAINCONFUSED SWELLCLOUDY0100000191061
1765-03-06T10:00-35.4033.68223CAPE BON ESPERENCEN85W308S81W50.00-25SW, SWBS, SSE, ESE, EBN, WSWCLOUDY AND FAIR0000000191062
1765-03-07T10:00-35.4032.192119.0CAPE BON ESPERENCEN85W284W73.00-24NBW, NW, W, WBS, NEFRESH GALESFAIR0000000191063
1765-03-08T10:00-34.5331.632352.6CAPE BON ESPERENCEN80W270N36W48.00-24WSW, SWBW, WBS, WBSLIGHT BREEZESSWELL AT SWFAIR0000000191064
1765-03-09T10:00-35.0830.982249.3CAPE BON ESPERENCEN86W257S58W38.00-24WBS, NWBN, NBW, N, WSWFIRST LIGHT AIRS, MID CALM, LATTER PLEASANT GALEGREAT SWELL FROM W AND WSWFAIR0000000191065
1765-03-10T10:00-35.8829.543476.7CAPE BON ESPERENCEN78W230S58W91.00-24SW, SSW, SWBS, NBEFIRST PLEASNT GALES, MID HARD SQUALLS, LATTER MORE MODERATERAINLARGE SELL FROM WSWFIRST FAIR, MID CLOUDY0100000191066
1765-03-11T10:00-35.8827.7413419.0CAPE BON ESPERENCEN75W203W81.00-24ESE, SSEFRESH GALEVERY GREAT SWELL FROM W AND WSWFAIR0000000191067
1765-03-12T10:00-35.8825.145619.0CAPE BON ESPERENCEN70W150W126.00-23ENE, EBNFRESH GALECLOUDY0000000191068
1765-03-13T10:00-35.9822.51676.7CAPE BON ESPERENCEN65W110S85W128.00-23ENE, NE, NW, WBS, EFIRST FRESH GALES NCREASING, MID HARD GALES WITH HEAVY SQUALLS, LATTER MORE MODERATECONFUSED SEAFIRST AND MID CLOUDY AND HAZY, LATTER UNSETTLED0000000191069
1765-03-14T11:00-35.7021.3923815.4CAPE BON ESPERENCEN48W90N72W61.00-21WSW, SSW, WBSSQUALLS TO VIOLENT HARD SQUALLS TERMINATING IN HARD GALE THEN MORE MODERATE, LATTER MODERATE GALESRAINGREAT SWELL FORM NWCLOUDY0100000191070
1765-03-15T11:00-35.7018.6118219.0CAPE BON ESPERENCEN30W60N83W136.00-21SSE, SSWFRESH GALESVERY LARGE SEA FROM WSWFAIR0000000191071
1765-03-16T11:00-35.7015.689519.0CAPE BON ESPERENCEN16W21W142.00-18EBS, ESE, ESEFRESH GALESDRIZZLING RAINHAZY0100000191072
1765-03-17T11:00-35.7013.149519.8CAPE LAGUALLASNW123.00-18SE, SSE, SSW, ESEFIRST AND MID MODERATE GALES, LATTER VERY FRESH GALESOME SMALL RAINHAZY AND CLOUDY0100000191073
1765-03-18T11:00-34.7710.6416419.0CAPE LAGUALLASWBS40N65W136.00-16SSW, SBE, SFRESH GALES, SOME SQUALLSCLOUDY0000000191074
1765-03-19T11:00-32.488.3114119.8CAPE LAGUALLASS67E110N41W182.00-17SEBE, SE, SSEVERY FRESH GALES AND SQUALLYA LARGE FOLLOWING SEACLOUDY0000000191075
1765-03-20T12:00-31.637.191106.1CAPE LAGUALLASS60E148N39W90.00-14SEBS, SSW, SEBEFIRST FRESH GALES, MID AND LATTER A DECREASING BREEZECLOUDY0000000191076
1765-03-21T12:00-30.876.342562.6CAPE LAGUALLASS60E152N39W68.00-14WSW, WBS, WLIGHT BREEZESSMOOTH WATERFAIR0000000191077
1765-03-22T12:00-29.825.312112.6CAPE LAGUALLASS56E184N39W81.00-14S, SWLIGHT BREEZESFAIR0000000191078
1765-03-23T12:00-28.283.9316615.4CAPE LAGUALLASS50E232N39W120.00-14ESE, SMODERATE GALESFAIR0000000191079
1765-03-24T12:00-26.622.4114515.4CAPE LAGUALLASS46E280N39W130.00-13SSEMODERATE GALESFAIR0000000191080
1765-03-25T12:00-24.920.861459.3CAPE LAGUALLASS44E326N39W132.00-13SSEPLEASANT TRADESMOOTH WATERFAIR0000000191081
1765-03-26T12:00-23.12-0.6914519.0CAPE LAGUALLASS44E376N38W138.00-13SE, SSE, SSEFRESH GALESFAIR0000000191082
1765-03-27T12:00-21.80-1.871449.3CAPE LAGUALLASS42E415N37W110.00-14SSEMODERATE TRADEFAIR0000000191083
1765-03-28T12:00-20.17-3.2714712.3ST HELENAN56W160N36W132.00-11SSEFRESH TRADECLOUDY0000000191084
1765-03-29T12:00-18.03-4.711479.3ST HELENAN59W122N36W136.00-11SEBS, SE, SSEPLEASANT TRADECLOSEDRIZZLING RAINHAZY0100000191085
1765-03-30T12:00-16.68-5.861129.3ST HELENAN75W84N33W120.00-12SE, SSE, SEBEPLEASANT TRADEFAIR0000000191086